| Patent Number |
Title Of Patent |
Date Issued |
| D257772 |
Telephone |
January 6, 1981 |
|
| D251595 |
Electronic copier |
April 17, 1979 |
|
| D251594 |
Electronic copier |
April 17, 1979 |
|
| D249521 |
Electronic copier |
September 19, 1978 |
|
| 4672179 |
Apparatus for cooking rice substantially under atmospheric pressure |
June 9, 1987 |
| Disclosed is an electric rice cooker which includes a pot to hold rice and water, an inner case defining a heating space between the inner case and the outer peripheral and bottom surfaces of the pot, an outer case supporting the inner case, and at least one heater disposed in the heatin |
| 4670282 |
Method for cooking rice |
June 2, 1987 |
| Disclosed is an electric rice cooker which comprises a pot to hold rice and water, an inner case defining a heating space between the inner case and the outer peripheral and bottom surfaces of the pot, an outer case supporting the inner case, and at least one heater disposed in the heati |
| 4587928 |
Apparatus for producing a semiconductor device |
May 13, 1986 |
| A process tube that is impermeable to impurities for use in the manufacture of semiconductor devices. The process tube is made of sintered silicon carbide and it may optionally be infiltrated with elemental silicon. The inner surface of the process tube includes a layer of high density s |
| 4453230 |
Address conversion system |
June 5, 1984 |
| An address conversion system comprises an improved associative memory circuit for providing a real address corresponding to an applied virtual address with reference to the correspondence between virtual and real addresses stored in a main memory. The associative memory includes first |
| 4405093 |
Endless tape travelling device |
September 20, 1983 |
| A recording and/or reproducing apparatus for an endless tape includes a stationary reel around which an endless tape is wound and which has a guide path formed over the inner and outer peripheral faces. The tape is led from the innermost side thereof through the guide path to a recording |
| 4400771 |
Multi-processor system with programmable memory-access priority control |
August 23, 1983 |
| A multi-processor system includes a plurality of processors, a common shared memory, and programmable memory access priority control circuit. The programmable memory access priority control circuits includes a programmable register circuit and a priority control circuit. The programm |
| 4392712 |
Light distributor |
July 12, 1983 |
| A light distributor comprising a plurality of optical fibers each having a tapered portion, said tapered portions of the optical fibers being thermally fused together to form a light mixing section where the cores of the fibers are packed together in a single cladding. |
| 4385307 |
Solid state image sensing device for enhanced charge carrier accumulation |
May 24, 1983 |
| A so-called buried channel type solid state image sensing device is formed with a channel layer of the opposite conductivity type in the surface of a semiconductor substrate. An insulating layer is formed on the surface of the semiconductor substrate and spaced apart photo-electrode and |
| 4381528 |
Enclosed-type magnetic disc recording and/or reproducing apparatus |
April 26, 1983 |
| An enclosed-type magnetic disc recording and/or reproducing apparatus according to this invention, having a pressure chamber to enclose a bearing unit of a flange rotating along with a magnetic disc, introduces an air pressure at a high-pressure portion, created by an air flow produc |
| 4371419 |
Method for producing a lithium tantalate single crystal |
February 1, 1983 |
| A method for producing a lithium tantalate single crystal comprises the steps of preparing a melt consisting essentially of lithium tantalate in a platinum-rhodium crucible including (20 to 35 weight percent of rhodium and 80 to 65 weight percent of platinum), and growing a lithium tanta |
| 4341874 |
Si.sub.3 N.sub.4 Ceramic powder material and method for manufacturing the same |
July 27, 1982 |
| Ceramic powder material mainly consists of silicon nitride wherein the content of oxygen combined with generally unavoidable impurities as measured by activation analysis accounts for less than 2% by weight. The above-mentioned ceramic powder material can also be prepared preferably by |
| 4339410 |
Control for liquid plant |
July 13, 1982 |
| A temperature control system for liquid plant is comprised of liquid metal, plant members, heaters for heating these liquid metal and the plant members at respective control points, a temperature control unit and a control unit. The plant members include a vessel containing liquid metal, |
| 4336163 |
Oxide negative resistance element |
June 22, 1982 |
| An oxide negative resistance element having a main body consisting of a sintered material containing 89.9 to 20 mole % of ZnO, 10.0 to 60 mole % of MgO and 0.1 to 20 mole % of MnO.sub.2. |
| 4330886 |
Automatic telephone exchange system for both speech signals and data transfer |
May 18, 1982 |
| Telephones are coupled with data terminal equipments through data lines. The data lines are used to transfer the terminal data between the data terminal equipments and the telephones. Speech signals are transferred between the telephones and a PCM telephone exchange through speech lines. |
| 4327373 |
Composite color signal processing circuit |
April 27, 1982 |
| A signal-processing circuit comprises a first gate circuit, a chrominance signal amplifier, a hue control circuit, means for reproducing a composite color signal, an AC coupling capacitor, and a second gate circuit. The first gate circuit receives a composite color signal consisting of |
| 4302205 |
Input control method and means for nitrogen oxide removal |
November 24, 1981 |
| Nitrogen oxide contained in the flue-gas from a heating unit is removed in a nitrogen oxide removal unit by injection of nitrogen oxide removing agent in an amount determined by the amount of the nitrogen oxide contained in the flue-gas. Such amount of nitrogen oxide contained in the |
| 4299443 |
Apparatus for detecting the defects of a pattern with directional characteristics using a filter |
November 10, 1981 |
| An apparatus for detecting the defects composed of non-linear components of a subject pattern, includes a laser source for illuminating the subject pattern by a laser beam, a Fourier-transform lens for projecting an information light from the pattern through a spatial filter onto a scree |
| 4297612 |
Electron gun structure |
October 27, 1981 |
| An electron gun structure which includes at least one cathode electrode, a plurality of grid electrodes including a first grid electrode, and a heater coil. The cathode electrode consists of a tubular cathode sleeve and an electron emissive coating formed on the closed end of it. The |
| 4296065 |
Method of producing highly densified ceramic articles |
October 20, 1981 |
| A method of producing ceramic articles having a density substantially equal to the theoretical density comprises heating a highly porous preliminary molding made of a ceramic powder to obtain a preliminarily sintered molding of a porosity below 30%, followed by sintering the preliminaril |
| 4295027 |
Microwave ovens with programmable control |
October 13, 1981 |
| The microwave oven is provided with a main control circuit including an input mechanism of an information regarding a cooking time, a heat output level, foodstuff temperature, and the like, the main control circuit controlling the cooking operation in accordance with the predetermined |
| 4292656 |
Enclosed-type magnetic disc recording and/or reproducing apparatus |
September 29, 1981 |
| An enclosed-type magnetic disc recording and/or reproducing apparatus according to this invention, having a pressure chamber to enclose a bearing unit of a flange rotating along with a magnetic disc, introduces an air pressure at a high-pressure portion, created by an air flow produc |
| 4290828 |
Method for manufacturing bimetal |
September 22, 1981 |
| A bimetal is disclosed having a high, rapid deflection over a specified temperature range, including a high expansion metal alloy component having a high thermal expansion coefficient that changes rapidy at 50.times.10.sup.-6 /.degree.C. or greater at a temperature of between about 1 |
| 4284432 |
Ceramic powder material and method for manufacturing the same |
August 18, 1981 |
| Ceramic powder material mainly consists of silicon nitride wherein the content of oxygen combined with generally unavoidable impurities as measured by activation analysis accounts for less than 2% by weight. The above-mentioned ceramic powder material can also be prepared preferably by |
| 4282860 |
Hot air type solar heat-collecting apparatus |
August 11, 1981 |
| A hot air type solar heat-collecting apparatus comprises a first transparent plate, a second transparent film located thereunder, and a corrugated metal plate mounted on the underside of a second transparent film to absorb the sunlight. The metal plate forms a first group of air pass |
| 4282860 |
Hot air type solar heat-collecting apparatus |
August 11, 1981 |
| A hot air type solar heat-collecting apparatus comprises a first transparent plate, a second transparent film located thereunder, and a corrugated metal plate mounted on the underside of a second transparent film to absorb the sunlight. The metal plate forms a first group of air pass |
| 4279022 |
Electronic calculation/memorandum apparatus |
July 14, 1981 |
| An electronic calculation/memorandum apparatus comprises: a main memory; a key input unit including character keys, numerical keys, symbol keys, and a character mode selection key, a data write-in key for the main memory, and a data read-out key for the main memory; means for setting the |
| 4275430 |
DV/DT Protection circuit device for gate turn-off thyristor |
June 23, 1981 |
| A snubber circuit is connected between the anode and cathode of a gate turn-off (GTO) thyristor. To the GTO thyristor a saturable reactor is connected in series. A gate off signal is supplied to the gate of the GTO thyristor and to the saturable reactor as backward current to reset the |
| 4263067 |
Fabrication of transistors having specifically paired dopants |
April 21, 1981 |
| A semiconductor device comprising an N type collector layer formed in an N type semiconductor wafer, a P type base layer which is in contact with the N type collector layer at a PN junction that extends to the surface and which contains an N type impurity material of which the energy of |
| 4259292 |
Gas detecting element |
March 31, 1981 |
| A gas detecting element comprising a hollow cylindrical insulative body, a pair of electrodes provided on the outer periphery of the insulative body, a gas detecting body covering up the outer periphery of the insulative body and the electrodes, a catalyst layer made of a catalytic mater |
| 4255136 |
Furnace for heat treatment of wire materials |
March 10, 1981 |
| A furnace for the heat treatment of wire materials, comprising a cylindrical furnace body having holes at both ends through which a wire material is inserted into and out of the furnace body, a combustion chamber formed within the furnace body, a burner provided at one end portion of |
| 4253338 |
Ultrasonic diagnostic equipment |
March 3, 1981 |
| An ultrasonic diagnostic equipment of linear electric scanning type includes a plurality of pulse generators for supplying electric pulses to a plurality of ultrasonic transducers disposed on a plane, gate circuits for driving the pulse generator, a plurality of analogue switching ci |
| 4250473 |
Circuit board having printed thereon conductive patterns to be connected with input and output l |
February 10, 1981 |
| An acoustic surface wave filter element provided with two input and two output pins connected with the input and the output interdigital electrodes, respectively and an earth pin connected with a filter element shield casing is disposed on one surface of a circuit board, with the five |
| 4249227 |
Enclosed switchboard having instruments needed for regular inspection and operation mounted on a |
February 3, 1981 |
| An enclosed switchboard in which an upper chamber and a lower chamber are formed within a switchboard frame in the form of a box for accommodating electrical apparatus such as circuit breakers. At the free surfaces of the frame facing the two chambers a top level door and a bottom level |
| 4247867 |
Apparatus for processing the output voltage of a detection circuit |
January 27, 1981 |
| The apparatus comprises a phase detection circuit for detecting the phase difference between two input signals to produce a single output which is supplied to charge a capacitor through a gate circuit and a unidirectionally conductive element. The terminal voltage of the capacitor is |
| 4245201 |
Elastic surface wave device |
January 13, 1981 |
| An elastic surface wave device includes a transducer having an elastic surface wave propagated in the direction of 75 to 133 degrees to a Y-axis on an X-cut lithium tantalate (LiTaO.sub.3) substrate. |
| 4245200 |
Method of intermediate frequency filtration in a television receiver |
January 13, 1981 |
| An elastic surface wave device includes a transducer having an elastic surface wave propagated in the direction of 75 to 133 degrees to a Y-axis on an X-cut lithium tantalate (LiTaO.sub.3) substrate. |
| 4245164 |
Solid state image pickup device |
January 13, 1981 |
| A solid state image pickup device utilizing a charge coupled device (CCD) includes an imaging section for converting a projected optical image into an electric charge corresponding to a quantity of light, a storage section for storing the electric charge transferred from the imaging sect |
| 4244322 |
Magnetic brush type developing apparatus |
January 13, 1981 |
| A developing apparatus includes a cylindrical drum having a photosensitive layer provided around the outer peripheral surface thereof, and a magnetic roller mounted within a receptacle and having permanent magnets oriented in a body thereof and a rotating cylindrical sleeve provided on t |
| 4243308 |
Exposure computation circuit |
January 6, 1981 |
| The present invention relates to an exposure computation circuit by means of which a computation is carried out with the values inversely proportional to all the exposure factors excepting the diaphragm value of the APEX system so as to obtain computation results in proportional rela |
| 4242880 |
Refrigerating apparatus |
January 6, 1981 |
| A refrigerating apparatus having two evaporators which are mounted respectively in the refrigeratory food compartment and the frozen food compartment, and wherein the refrigerant gas flow in the evaporator of the refrigeratory food compartment is controlled by both temperatures of the |
| 4238751 |
Deflection yoke for color picture tube |
December 9, 1980 |
| In a plural beam color picture tube, convergence of the beams is achieved by means of non-uniform main deflection fields and of induced flux fields. For this purpose, a pair of supplementary coils are disposed adjacent the toroidally-shaped high permeability magnetic core on which the ho |
| 4238738 |
Temperature-compensated amplifier circuit |
December 9, 1980 |
| A temperature-compensated amplifier circuit including an amplifier section having first and second transistors which are connected at their collectors to a power source terminal through first and second resistors, and having d.c. biased bases coupled to signal source terminals; a current |
| 4238043 |
X-ray image intensifier |
December 9, 1980 |
| A highly evacuated X-ray image intensifier, whose X-ray inlet window section made of aluminium or alloy thereof is hermetically fused to the output section of a glass vessel by means of a joint ring formed of glass-wettable alloy or alloy fusible with glass, wherein the X-ray inlet w |
| 4236781 |
Illumination system for specimen |
December 2, 1980 |
| A bonding apparatus for IC pellets is provided with an illumination system for illuminating the IC pellet and a microscope for observing the IC pellet. The illumination system is of reflected dark field illumination since the circuit pattern and pad for IC pellet bonding is coarse in the |
| 4236540 |
Pliable and restorable hairsetter |
December 2, 1980 |
| A home hair-setter whose body is a cylindrical heat-resistant elastic member and wherein the outer peripheral surface of the body of the hair-setter is used to curl hair; the hair-curling section of the body is enclosed in a cylindrical envelope; and the body of the hair-setter has at |
| 4236228 |
Memory device for processing picture images data |
November 25, 1980 |
| The memory device for processing picture images data is comprised from a memory bank including a number of memory boards each constituted by a bit plane, and bits constituting a picture element information are located in different memory boards. There are provided a data write circuit fo |
