| Patent Number |
Title Of Patent |
Date Issued |
| 5554219 |
Process for producing single-crystal bulk zinc selenide |
September 10, 1996 |
| When producing a single-crystal bulk ZnSe from a melt by a high-pressure melt technique in a vertical Bridgman (VB) furnace or a vertical gradient freezing (VGF) furnace, preliminarily grown polycrystalline ZnSe (which may be a crystal solely composed of twins) is used as a seed and, aft |
| 5534361 |
Ferromagnetic metal powder |
July 9, 1996 |
| There is provided a metallic magnetic powder with which one can produce magnetic media for high-density recording that are improved in storage stability and magnetic characteristics.The improved ferromagnetic metal powder contains no more than 0.05 wt % of an element of Group Ia of the p |
| 5462821 |
Gallium based active material for the negative electrode, a negative electrode using the same, a |
October 31, 1995 |
| A novel primary or secondary battery whose active material for the negative electrode is composed of metallic gallium, gallium alloys or gallium oxide has first come into the world.Gallium has an electrochemical equivalent of 23.24, which is smaller than those of zinc (32.70) and cadmium |
| 5387293 |
Copper base alloys and terminals using the same |
February 7, 1995 |
| A copper base alloy for terminals that is of the Cu-Ni-Sn-P or Cu-Ni-Sn-P-Zn system and that has a tensile strength of at least 50 kgf/mm.sup.2, a spring limit of at least 40 kgf/mm.sup.2, a stress relaxation of not more than 10% and a conductivity of at least 30% IACS is provided. T |
| 5348888 |
DNA fragment coding for mercuric reductase of thiobacillus, and recombinant plasmid |
September 20, 1994 |
| Microorganisms of the genus Thiobacillus find utility in the mining industry in such applications as bacterial leaching, the treatment of mine drainage water and the deiron in hydrometallurgy process. This invention discloses a DNA fragment which codes for a mercuric reductase in mic |
| 5322575 |
Process for production of copper base alloys and terminals using the same |
June 21, 1994 |
| A copper base alloy for terminals that is superior in all aspects of tensile strength, spring limits, conductivity, and stress relaxation characteristics can be produced by a process repeating the cycles consisting of hot-rolling, cold-rolling and annealing, in which process an ingot |
| 5269855 |
Permanent magnet alloy having improved resistance |
December 14, 1993 |
| A permanent magnet made of an R--Fe--B--C or R--Fe--Co--B--C based alloy, where R is at least one rare-earth element, comprising individual magnetic crystal grains that are covered with an oxidation-resistant protective film. The protective film surrounding the individual magnetic crysta |
| 5268040 |
Method for steel surface hardening treatment and an apparatus therefor |
December 7, 1993 |
| A method of cooling steel parts from austenitic stage to a temperature that is higher than its Ms point after carburization of said steel part to carry out diffusion transformation, then carrying out a nitriding treatment and further applying shot peening, and in order to implement s |
| 5252305 |
Process of recovering platinum group metal |
October 12, 1993 |
| A process of recovering a platinum group metal from a waste catalyst comprising a first step which comprises heating and melting the catalyst impregnated with the platinum group metal, copper and/or the oxide of copper, a flux component and a reductant component to form a layer conta |
| 5205878 |
Copper-based electric and electronic parts having high strength and high electric conductivity |
April 27, 1993 |
| Electric and electronic parts, including leadframes made of a copper-based alloy having high strength and high electric conductivity said copper-based alloy is produced by a process which comprises the steps of preparing a copper-based alloy consisting essentially of 0.01-3.0 wt % Co |
| 5183630 |
Process for production of permanent magnet alloy having improved resistence to oxidation |
February 2, 1993 |
| A process for producing a permanent magnet alloy based on a R--Fe--B--C system wherein R is at least one of the rare earth elements including Y, comprising the steps of preparing a molten crude alloy, producing a powder directly therefrom or after casting it into an alloy ingot and then |
| 5174363 |
Process for producing shape strips of metals |
December 29, 1992 |
| Molten metal is poured into a mold having an inside cross section with varied thicknesses along the direction of the width thereof. The molten metal is allowed to solidify in the mold and the cast strip is withdrawn from the mold either continuously or intermittently. The as-cast strip i |
| 5147473 |
Permanent magnet alloy having improved resistance to oxidation and process for production thereo |
September 15, 1992 |
| A permanent magnet made of an R-Fe-B-C or R-Fe-Co-B-C based alloy (where R is at least one rare-earth element) consisting of its individual magnetic crystal grains that are covered with an oxidation-resistant protective film is promising as a practicable next-generation magnet because of |
| 5147469 |
Process for producing copper-based alloys having high strength and high electric conductivity |
September 15, 1992 |
| Copper-based alloys suitable for use as materials in fabricating electric and electronic parts as typified by leadframes and having high strength and high electric conductivity can be produced by a process which comprises the steps of preparing a copper-based alloy consisting essenti |
| 5117100 |
Apparatus for and method of optical position detection |
May 26, 1992 |
| The present optical position detection method and the apparatus therefor is adapted to compute an arithmetic mean of the adjusted light reception values received by adjacent photodetectors as the virtual light reception value at the virtual position, compare not only the adjusted light |
| 5082163 |
Method of metallizing non-oxide ceramics |
January 21, 1992 |
| A non-oxide ceramic material such as aluminum nitride can be metallized with copper by directly bonding a thin sheet of copper to a substrate of the non-oxide ceramic material instead of using a conventional manner in which a paste comprising a powder of copper and a binder is applied to |
| 5069803 |
Synthetic resin composition containing gallium particles and use thereof in the glide surfacing |
December 3, 1991 |
| A synthetic resin composition having particles of metallic gallium or gallium alloy dispersed uniformly in a synthetic resin is particularly useful for the production of a surfacing material for a glider for use on snow or ice. When a molten paraffin wax is applied to such surfacing |
| 5051574 |
Optical coordinate detection apparatus |
September 24, 1991 |
| The present optical detection apparatus is adapted to measure an individual light reception value received by respective photodetectors when the light is interrupted by an object and the driving amount for light emission of the respective light emitting devices is controlled to be equal, |
| 5036187 |
Photodetecting circuit with compensated integration signal |
July 30, 1991 |
| The optical input detection apparatus is adapted to integrate the value of the light received corresponding to the sum of the value of the light received by the light receiving device during driving of the light emitting device and the external flood light, deduct from the integration |
| 5035837 |
Copper paste composition |
July 30, 1991 |
| A copper paste composition for low temperature firing on a ceramic substrate is comprised of inorganic components and organic vehicle components. The inorganic components mainly consist of cooper powder, cuprous oxide powder, cupric oxide powder and glass powder. The mixing ratio off |
| 5013464 |
Liquid suspension composition containing gallium particles and process for producing the same |
May 7, 1991 |
| Fine particles of gallium or gallium alloy that are covered with a coating agent on the surface can be dispersed in a solvent such as an engine oil, n-hexane, etc., to make a variety of useful liquid suspensions which include a modified automotive engine oil, which is superior to a c |
| 4937016 |
Copper conductor composition |
June 26, 1990 |
| A copper conductor composition comprising a copper powder, an inorganic oxide powder, a glass powder and an organic vehicle, said copper powder having an average particle size of 0.5 to 3 .mu.m, a tap density of 3.0 to 5.0 g/cm.sup.3, and an oxygen content of 0.05 to 0.15% by weight. Zin |
| 4931262 |
Method of treating H.sub.2 S containing gases |
June 5, 1990 |
| There is disclosed an improved method for the purification of H.sub.2 S containing gases, which comprises the steps of (1) oxidizing a solution of ferrous sulfate into a solution of ferric sulfate with the aid of an iron-oxidizing bacterium; (2) absorbing the H.sub.2 S in the gas by the |
| 4927788 |
Monolithic female connector |
May 22, 1990 |
| A monolithic female connector made of a copper-base alloy consisting essentially of 7-15 wt % Ni, 1.0-2.0 wt % Al, no more than 0.0050 wt % 0.sub.2, and the balance of Cu and incidental impurities is highly useful as an electrical connector element of low signal current used in autom |
| 4906404 |
Copper conductor composition |
March 6, 1990 |
| A copper conductor composition having an improved solderability as well as a good adhesion, which comprises a copper powder, an inorganic binder and a boride or silicide of a metal such as W, Mo, Ti, Ta, Nb or Cr. The solderability is kept on a good level even if the composition is subje |
| 4871399 |
Copper alloy for use as wiring harness terminal material and process for producing the same |
October 3, 1989 |
| A copper alloy obtained by preparing a blank of an alloy that consists of 1.0-3.0% Ni, 0.5-1.5% Ti (the ratio of Ni/Ti in weight percent being in the range of 1-3), 0.1-2.0% Zn, 0.01-0.5% Mg, no more than 50 ppm of oxygen, and the balance being Cu and incidental impurities, all percents |
| 4811893 |
Method for bonding copper plate to alumina substrate and process for producing copper/alumina bo |
March 14, 1989 |
| A novel method for directly bonding a copper plate to an alumina substrate is disclosed. Also disclosed is a process by which bonded assembles of copper plate and alumina substrate can be produced in large volumes on an industrial scale in high yield and at low cost employing a simplifie |
| 4789494 |
Hydrothermal process for producing magnetoplumbitic ferrite |
December 6, 1988 |
| There is disclosed in hydrothermal process for producing a magnetoplumbitic ferrite powder of the formula:wherein M is one or more metals selected from the group consisting of Ba, Sr, Ca and Pb; n is a number of 3 to 6; M' is at least one component selected from the group consisting of S |
| 4735074 |
One-pass type continuous multi-stage roll mill and rolling method |
April 5, 1988 |
| A multi-stage roll mill for producing a lengthy continuous rolled sheet material by a one-pass operation, comprises a driven central working roll, and a plurality of peripheral working rolls arranged spaced apart and on the periphery of the central working roll, the diameter of each of t |
| 4673597 |
Sliding wax |
June 16, 1987 |
| Sliding wax such as ski wax is made from gallium or molybdenum disulfide. The wax having a low melting point can be applied to sliding apparatuses readily at sites where they are used, and the wax is advantageously applicable to any snow conditions. |
| 4592974 |
Active material for negative poles of alkaline dry cells, and method for making said material |
June 3, 1986 |
| Novel active materials for negative poles in alkaline dry cells, and method of preparing the same are disclosed. Said materials and method do not employ harmful Hg. In place of Hg, an alloy containing at least three elements selected from Bi, Pb, In, Cd, and Ga is used to have a zinc dus |
| 4585940 |
Optical detector |
April 29, 1986 |
| An optical detector or an optically detecting apparatus comprises divider means for outputting not only a light source flash signal which divides an oscillation signal with frequency higher than that of an expected disturbance light but also an operating time signal divided into a divide |
| 4572822 |
Method of recovering metals from industrial by-products |
February 25, 1986 |
| There is disclosed a novel method of recovering valuable metals from an industrial by-product containing copper and arsenic and at least one metal selected from among lead, zinc, iron, silver and cadmium, said method comprising leaching the by-product with sulfuric acid in an SO.sub.2 ga |
| 4560415 |
Liquid composition for artificial production of verdigris |
December 24, 1985 |
| There is disclosed a liquid composition which is useful for the artificial production of verdigris, said composition comprising an aqueous solution which is acidic due to the presence of free hydrochloric acid and contains an iron salt and a copper salt, said iron and copper salts being |
| 4540065 |
Apparatus for wall timbering of drifts, tunnels, and the like |
September 10, 1985 |
| Apparatus mounted on a self-propelled truck, and provided with mechanisms for effectively, smoothly, and safely performing various timbering work in drift and tunnel walls and roofs. The mechanism includes a working platform which is rotatable and kept horizontal for easy conveyance of |
| 4517096 |
Method of selective separation and concentration of gallium and/or indium from solutions contain |
May 14, 1985 |
| A novel method is disclosed which enables gallium and/or indium to be selectively separated and concentrated from a solution containing them in very low concentrations together with many other metal ions in rather high concentrations. The solution is passed through a bed of a chelating i |
| 4411807 |
Dry process for the production of hexagonal-system ferrite |
October 25, 1983 |
| There is disclosed a novel dry process for the production of hexagonal-system ferrite having the formula: MO.multidot.nFe.sub.2 O.sub.3, wherein n represents a real number of 5.1-5.8 and M represents at least one metallic element selected from the group consisting of Ba, Sr and Pb. T |
| 4404071 |
Method of treating electrolytic solution of copper for purification and reuse thereof |
September 13, 1983 |
| There is disclosed an improved method of treating a spent electrolyte of copper from a cell for electrolytic refining of copper for the purpose of purification and reuse of the spent electrolyte. The process comprises the steps of: pretreating the spent electrolyte for removing copper th |
| 4352717 |
Apparatus for production of spherical grain ferrite powder |
October 5, 1982 |
| Apparatus for producing substantially spherical grain ferrite powder comprising a vertical cylindrical vessel in which a slurry of ferrite-forming powdered raw materials in alcohol is sprayed under applied pressure through a spray nozzle into a high temperature atmosphere of between |
| 4251497 |
Method for measuring the basic amount in basic aluminum sulfate solution for removal of SO.sub.2 |
February 17, 1981 |
| Reaction heat values of basic aluminum sulfate solution with acid such as sulfuric acid are correlative with an amount of base contained in said solution. The difference of temperatures of said solution before and after its reaction with said acid is utilized as an indication for the |
| 4248312 |
Method and apparatus for upwardly cutting full cutting face of a shaft without requesting workme |
February 3, 1981 |
| There is provided a method and apparatus for upwardly excavating a shaft through destructible underground rock. The cutting operation is carried out by full face boring without relying on blasting. An operation for supporting the shaft side wall is carried out by means of frame segments |
| 4241039 |
Method of removal of arsenic from a sulfuric acid solution |
December 23, 1980 |
| A method of removal of arsenic from an acidic solution, in which ferrous ions contained in the solution are oxidized in the presence of high pressured oxygen and sulfuric acid to ferric ions, the solution with said ferric ions being mixed with the solution which has not subjected to |
| 4226843 |
Process and apparatus for production of spherical grain ferrite powder |
October 7, 1980 |
| There is disclosed a novel type of spherical grain-ferrite powder as well as a process and apparatus for the production thereof. A slurry of ferrite-forming powdered raw materials in alcohol is sprayed under applied pressure through a spray nozzle into a high temperature atmosphere of |
| 4152409 |
Method for carrying out air oxidation and for adding fine bubbles to a liquid |
May 1, 1979 |
| A method of carrying out air oxidation comprises substantially continuously feeding liquid and air to an oxidizing tank (A) via a bubble forming device (D) which is fixed at the bottom of the tank, feeding a part of the liquid out of the tank via a lower port to a gas-liquid separating d |
| 4148108 |
Apparatus for polishing cathode plates for metal electrolytic refinery |
April 10, 1979 |
| Apparatus for polishing metal electrolytic refining cathode plates, in which cathode plates are transported individually by means of a series of transferring and hanging devices, with the cathode plates thus transferred being polished in a polishing mechanism while moved vertically and w |
| 4147452 |
Method for constructing a rectangularly shaped tunnel |
April 3, 1979 |
| A rectangularly shaped tunnel is constructed to include an artificial roof, side wall pillars, a center wall pillar and floor portions all extending along the length of tunnel. The artificial roof is formed by sequentially excavating cross cut shafts and by subsequently plugging the thus |
| 4139456 |
Process for oxidation treatment of FE.sup.2+ in waste water |
February 13, 1979 |
| Improved process for the oxidation of the Fe.sup.2+ in waste water is disclosed. The process is especially advantageous when applied to low pH acidic waste waters containing substantial amount of the Fe.sup.2+ and is carried out by making use of acid-proof, porous material as a bed-mater |
| 4120807 |
Process for producing hexagonal-system ferrite powder |
October 17, 1978 |
| A novel hexagonal-system ferrite powder having surprisingly high coercive force as well as other excellent performance characteristics is disclosed. The ferrite powder is prepared by co-precipitating ferrous hydroxide and a metal carbonate in a liquid phase under specified conditions, fo |
| 4120806 |
Hexagonal-system ferrite powder, composite plastic-ferrite magnet comprising same and process fo |
October 17, 1978 |
| A novel hexagonal-system ferrite powder having surprisingly high coercive force as well as other excellent performance characteristics is disclosed. The ferrite powder is prepared by co-precipitating ferrous hydroxide and a metal carbonate in a liquid phase under specified conditions, fo |
| 4113106 |
Process of tin flotation |
September 12, 1978 |
| An improved tin flotation process is disclosed.Tin ores are subjected to flotation using sulfurous acid and/or sulfite in the flotation pulp to produce improved tin concentrates. |
