| Patent Number |
Title Of Patent |
Date Issued |
| 7042662 |
Light amount adjusting device, and optical device using the light amount adjusting device |
May 9, 2006 |
| To provide an ND filter and a light amount adjusting device, in which a deterioration of optical performance of an optical system is small, and in addition, an optical system having the light amount adjusting device, and an optical device having the optical system. More specifically, an |
| 6701902 |
Activated carbon canister |
March 9, 2004 |
| A canister for a vehicular evaporative emission control system has activated carbon and heating means. The heating means heats the activated carbon particles. The activated carbon particles are characterized by the following properties. Pore volume is 0.28 ml/ml or more. Average pore |
| 6544307 |
Polishing composition and manufacturing and polishing methods |
April 8, 2003 |
| A polishing compound containing cocoon-shaped silica particles and crystal silica particles, and water-soluble polymers including; at least one type selected from the groups including ammonium nitrate and ammonium acetate, and at least one type selected from methylcellulose, carboxym |
| 6022759 |
Method for producing a semiconductor device, base member for semiconductor device and semiconduc |
February 8, 2000 |
| A semiconductor device includes a semiconductor element, a semiconductor device base member having an element mounting portion on which the semiconductor element is mounted, external connection terminals provided on the semiconductor device base member and electrically connected to the |
| 5747874 |
Semiconductor device, base member for semiconductor device and semiconductor device unit |
May 5, 1998 |
| A semiconductor device includes a semiconductor element, a semiconductor device base member having an element mounting portion on which the semiconductor element is mounted, external connection terminals provided on the semiconductor device base member and electrically connected to the |
| 5715103 |
Neutral density (ND) filter |
February 3, 1998 |
| A thin-film-type ND filter which attenuates the amount of light transmission is formed on a transparent substrate by using two or more types of metallic oxide having a refractive index n and an attenuation coefficient k which are in the range of 1.0 to 3.0 in the wavelength region of |
| 5643831 |
Process for forming solder balls on a plate having apertures using solder paste and transferring |
July 1, 1997 |
| A method for fabricating a semiconductor device using a solder ball forming plate having cavities. The plate is made from a silicon plate having a flat surface in a <110> crystallographic plane, and an orientation flat in a <1-11> crystallographic plane. The cavities are form |
| 5354800 |
Production of copolymer latices |
October 11, 1994 |
| There is disclosed a method of producing copolymer latices which are useful as binders in paper coating compositions capable of providing coated papers with good and balanced physical characteristics, including adhesive strength, water resistance, ink acceptability and sheet gloss and wh |
| 4944270 |
Asymmetrical excitation type magnetic device and method of manufacture thereof |
July 31, 1990 |
| An asymmetric excitation type magnetic device is provided with a composite magnetic body composed of a first magnetic layer having a relatively strong coercive force and a second magnetic layer having a relatively weak coercive force which layers are combined so as to have their respecti |
| 4917866 |
Production process of silicon carbide short fibers |
April 17, 1990 |
| A process for producing silicon carbide short fibers comprises oxidizing metallic silicon powder in an oxidizing gas atmosphere into silicon monoxide in the form of ultrafine particles or gas, and carbonizing said silicon monoxide in a reducing gas atmosphere containing carbon at tem |
| 4742040 |
Process for manufacturing a carbon molecular sieve |
May 3, 1988 |
| A process for manufacturing a carbon molecular sieve having both increased gas adsorption capacity and selectivity, which entails:(a) adding coal tar, coal tar pitch, or a combination thereof to powdered coconut shell charcoal as a binder;(b) pelletizing the mixture and carbonizing the same |
| 4719095 |
Production of silicon ceramic powders |
January 12, 1988 |
| A process for producing silicon ceramic powder, which comprises, oxidizing metallic silicon powder in an oxidizing gas atmosphere into silicon monoxide in the form of ultrafine particles or gas, and reducing said silicon monoxide in a reducing gas atmosphere containing at least nitrogen |
| 4705762 |
Process for producing ultra-fine ceramic particles |
November 10, 1987 |
| A process for producing ultra-fine ceramic particles with the particle size of less than 1000 .ANG., which comprises the steps of forming powdered dust cloud of metal powder such as Si constituting a portion of aimed ceramic particles in a reaction gas containing the other portion of sai |
| 4632849 |
Method for making a fine powder of a metal compound having ceramic coatings thereon |
December 30, 1986 |
| A method for making fine powder of a metallic compound coated with ceramics is described. In the method, a gaseous mixture of at least one metal vapor constituting one component of a metallic compound and a carrier gas for the at least one metal vapor is passed at a speed of 50 to 2000 m |
| 4610857 |
Method for making ultra-fine ceramic particles |
September 9, 1986 |
| A method for making ultra-fine ceramic particles, in which metal powder constituting a portion of the ultra-fine ceramic particles intended for production is injected at a rate of not less than 70 grams per minute into a plasma jet so that the metal powder is vaporized. The vaporized met |
| 4516173 |
Image data conversion method and character code/character pattern conversion apparatus |
May 7, 1985 |
| An image data conversion method for converting the image data signal to the runlength signal through the process for reading once or several times a runlength code from a runlength conversion table for a given image data signal and a process for adding the pertinent runlength code when t |
| 4458022 |
Process for manufacturing molecular sieving carbon |
July 3, 1984 |
| A process for manufacturing molecular sieving carbon is disclosed, wherein pelletized charcoal made of coconut shell charcoal powder and coal tar is washed with dilute mineral acid solution, then a specified amount of coal tar is added, penetrated therein, followed by heat treatment unde |
| 4450006 |
Martensitic stainless steel |
May 22, 1984 |
| Disclosed is an improved martensitic stainless steel, which essentially consisting of 0.15 to 0.50% of C, 0.01 to 0.50% of Si, 0.30 to 2.0% of Mn, 1.0 to 3.0% of Cu, up to 0.20% of Ni, 13.0 to 17.0% of Cr and 0.02 to 0.10% of N, and the balance being Fe and inevitable impurities. The |
