Patents by Inventor Yoshihito Katayama
Yoshihito Katayama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7842168Abstract: The invention provides a method for producing a silicon oxide film, whereby a film having uniform optical constants such as refractive index, absorption coefficient, etc. can be formed continuously at a high deposition rate. A method for producing a silicon oxide film, which comprises depositing a silicon oxide film on a substrate by carrying out AC sputtering by using a sputtering target comprising silicon carbide and silicon with a ratio in number of atoms of C to Si being from 0.5 to 0.95, in an atmosphere containing an oxidizing gas, with an alternating current having a frequency of from 1 to 1,000 kHz.Type: GrantFiled: October 25, 2005Date of Patent: November 30, 2010Assignee: Asahi Glass Company, LimitedInventors: Toru Ikeda, Takahiro Mashimo, Eiji Shidoji, Toshihisa Kamiyama, Yoshihito Katayama
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Publication number: 20100255294Abstract: To provide a heat reflecting glass provided with at least a chromium nitride film, which has a visible light transmittance Tv of at most 35% and a solar transmittance Te/visible light transmittance Tv ratio of less than 1.0 and which undergoes substantially no change in the optical properties even when subjected to heat treatment for strengthening or bending. An oxygen-blocking undercoat film made of silicon nitride is formed on the surface of a glass substrate; a chromium nitride film for heat reflection is formed as an upper layer of the oxygen-blocking undercoat film; and further, an oxygen-blocking protective film made of silicon nitride is formed as an upper layer of the chromium nitride film. The ratio in the number of atoms of nitrogen to chromium in the chromium nitride for heat reflection is from 20% to 60%.Type: ApplicationFiled: June 22, 2010Publication date: October 7, 2010Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Kazuya Yaoita, Yoshihito Katayama
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Patent number: 7638184Abstract: To provide a laminated glass for a vehicle window which can prevent the temperature increase in a vehicle. A laminated glass for a vehicle window which comprises a glass plate 12 to be disposed on the car exterior side when the laminated glass 1 is assembled in a vehicle, and an infrared reflection film 21 provided on the side of an infrared shielding interlayer 30 having infrared shielding fine particles dispersed therein, of the glass plate 12, wherein the reflectance to light at all wavelengths of from 900 to 1,100 nm is from 30 to 50%, the absorptivity to light at all wavelengths of from 1,100 to 1,300 nm is from 35 to 60%, and the transmittance to light at all wavelengths of from 900 to 1,500 nm is at most 30%.Type: GrantFiled: February 19, 2008Date of Patent: December 29, 2009Assignee: Asahi Glass Company, LimitedInventors: Kazuya Yaoita, Takahira Miyagi, Yoshihito Katayama, Yukio Kimura
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Patent number: 7629040Abstract: To provide a laminated glass for a vehicle window which can prevent the temperature increase in a vehicle. An infrared reflection glass plate which is a glass plate with an infrared reflection film, wherein the infrared reflection film has a stacked coating film (X) having a coating film (1) made of a high refractive index inorganic material having a refractive index of at least 1.90 and a coating film (2) made of a low refractive index inorganic material having a refractive index of at most 1.56 alternately stacked in this order from the glass plate side; the total number of the coating film (1) and the coating film (2) is at least 3; and the geometrical thickness of the coating film (1) is from 70 to 150 nm and the geometrical thickness of the coating film (2) is from 100 to 200 nm.Type: GrantFiled: February 13, 2008Date of Patent: December 8, 2009Assignee: Asahi Glass Company, LimitedInventors: Kazuya Yaoita, Takahira Miyagi, Yoshihito Katayama, Yukio Kimura
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Publication number: 20080206533Abstract: To provide a laminated glass for a vehicle window which can prevent the temperature increase in a vehicle. A laminated glass for a vehicle window which comprises a glass plate 12 to be disposed on the car exterior side when the laminated glass 1 is assembled in a vehicle, and an infrared reflection film 21 provided on the side of an infrared shielding interlayer 30 having infrared shielding fine particles dispersed therein, of the glass plate 12, wherein the reflectance to light at all wavelengths of from 900 to 1,100 nm is from 30 to 50%, the absorptivity to light at all wavelengths of from 1,100 to 1,300 nm is from 35 to 60%, and the transmittance to light at all wavelengths of from 900 to 1,500 nm is at most 30%.Type: ApplicationFiled: February 19, 2008Publication date: August 28, 2008Applicant: ASAHI GLASS CO., LTD.Inventors: Kazuya YAOITA, Takahira Miyagi, Yoshihito Katayama, Yukio Kimura
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Publication number: 20080199670Abstract: To provide a laminated glass for a vehicle window which can prevent the temperature increase in a vehicle. An infrared reflection glass plate which is a glass plate with an infrared reflection film, wherein the infrared reflection film has a stacked coating film (X) having a coating film (1) made of a high refractive index inorganic material having a refractive index of at least 1.90 and a coating film (2) made of a low refractive index inorganic material having a refractive index of at most 1.56 alternately stacked in this order from the glass plate side; the total number of the coating film (1) and the coating film (2) is at least 3; and the geometrical thickness of the coating film (1) is from 70 to 150 nm and the geometrical thickness of the coating film (2) is from 100 to 200 nm.Type: ApplicationFiled: February 13, 2008Publication date: August 21, 2008Applicant: Asahi Glass Company, LimitedInventors: Kazuya YAOITA, Takahira Miyagi, Yoshihito Katayama, Yukio Kimura
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Publication number: 20080199671Abstract: A glass substrate with antireflection film is provided, which has sufficient antireflection performance for obliquely incident light, high visible light transmittance, sufficient abrasion resistance and good transmittance for electromagnetic waves, which is sufficiently durable against heat treatment in the production process, to which treatment after film-forming is applicable, and which has smaller number of films and thus is producible at low cost. A glass sheet with antireflection film, comprising a glass sheet and an antireflection film composed of at least two layers and provided on a surface of the glass sheet, wherein the antireflection film comprises a film (a) made of a high refractive index material having a refractive index of from 1.8 to 2.6 and an extinction coefficient of from 0.01 to 0.65 in a wavelength region of from 380 to 780 nm, and a film (b) made of a low refractive index material having a refractive index of at most 1.Type: ApplicationFiled: February 14, 2008Publication date: August 21, 2008Applicant: Asahi Glass Company, LimitedInventors: Takahira MIYAGI, Yoshihito KATAYAMA, Yukio KIMURA
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Publication number: 20070279750Abstract: To provide a substrate with an antireflection film having a high visible light transmittance, a low reflectance and a high film resistivity, and having no cracking even when subjected to heat treatment. A substrate with an antireflection film comprising a transparent substrate and an antireflection film having even number layers in total of a coating film made of a high refractive material having a refractive index of at least 1.90 and a coating film made of a low refractive material having a refractive index of at most 1.56 laminated in this order from the transparent substrate side, wherein at least one coating film made of a high refractive material is a single layer film (a) of a titanium oxynitride layer, a laminated film (b) containing a titanium oxide layer and a zirconium oxide layer or a laminated film (c) containing a titanium oxynitride layer and a zirconium oxide layer.Type: ApplicationFiled: July 31, 2007Publication date: December 6, 2007Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Kazuya Yaoita, Yoshihito Katayama, Yukio Kimura
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Publication number: 20060032739Abstract: The invention provides a method for producing a silicon oxide film, whereby a film having uniform optical constants such as refractive index, absorption coefficient, etc. can be formed continuously at a high deposition rate. A method for producing a silicon oxide film, which comprises depositing a silicon oxide film on a substrate by carrying out AC sputtering by using a sputtering target comprising silicon carbide and silicon with a ratio in number of atoms of C to Si being from 0.5 to 0.95, in an atmosphere containing an oxidizing gas, with an alternating current having a frequency of from 1 to 1,000 kHz.Type: ApplicationFiled: October 25, 2005Publication date: February 16, 2006Applicant: Asahi Glass Company, LimitedInventors: Toru Ikeda, Takahiro Mashimo, Eiji Shidoji, Toshihisa Kamiyama, Yoshihito Katayama
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Patent number: 6572990Abstract: An antireflection film for a window of a transport, which comprises a light absorbing film consisting essentially of a nitride and having a film thickness of from 3 to 12 nm, and an oxide film having a refractive index of from 1.45 to 1.70 and a film thickness of from 70 to 140 nm, formed in this order on a substrate, and which has adequately low reflection performance to the oblique incident light, an adequate abrasion resistance and a high transmittance of visible light, a glass provided with said film, a laminated glass and its production process.Type: GrantFiled: July 31, 2000Date of Patent: June 3, 2003Assignee: Asahi Glass Company, LimitedInventors: Takuji Oyama, Kazuyoshi Noda, Yoshihito Katayama, Yukio Kimura
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Patent number: 6570709Abstract: The present invention provides a substrate with antireflection films, which has excellent antireflection properties to incident light at an oblique angle from the film face side and high transmittance. Moreover, the antireflection films of the present invention provide a reflection color tone that does not tend to be bluish. This object is achieved where the substrate with antireflection films comprises a transparent substrate and at least two antireflection film layers deposited on one side of the transparent substrate as described herein.Type: GrantFiled: July 26, 2001Date of Patent: May 27, 2003Assignee: Asahi Glass Company, LimitedInventors: Yoshihito Katayama, Yukio Kimura, Mikako Maekawa, Eiji Shidoji, Kazuyoshi Noda
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Publication number: 20020051294Abstract: It is to provide a substrate provided with antireflection films, which is excellent in antireflection properties to incident light at an oblique angle from the film face side, which has a high transmittance and with which the reflection color tone does not tend to be bluish.Type: ApplicationFiled: July 26, 2001Publication date: May 2, 2002Applicant: Asahi Glass Company, LimitedInventors: Yoshihito Katayama, Yukio Kimura, Mikako Maekawa, Eiji Shidoji, Kazuyoshi Noda
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Patent number: 6358617Abstract: A light absorptive antireflector provided with a titanium oxy-nitride film having a geometrical film thickness of from 5 to 25 nm, wherein O/Ti (atomic ratio)=0.11 to 0.33, and a film composed mainly of silica and having a geometrical film thickness of from 70 to 130 nm, and a process for its production.Type: GrantFiled: October 16, 2000Date of Patent: March 19, 2002Assignee: Asahi Glass Company, LimitedInventors: Hisashi Ohsaki, Yuko Tachibana, Takuji Oyama, Hiromichi Nishimura, Yoshihito Katayama
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Patent number: 5942319Abstract: A light absorptive antireflector comprising a substrate, a light absorbing film formed on the substrate and a silica film formed on the light absorbing film, to reduce reflection of incident light from the silica film side, wherein the geometrical film thickness of the light absorbing film is from 5 to 25 nm, and the geometrical film thickness of the silica film is from 70 to 110 nm.Type: GrantFiled: August 25, 1997Date of Patent: August 24, 1999Assignee: Asahi Glass Company Ltd.Inventors: Takuji Oyama, Yoshihito Katayama
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Patent number: 5691044Abstract: A light absorptive antireflector comprising a substrate, a light absorbing film formed on the substrate and a silica film formed on the light absorbing film, to reduce reflection of incident light from the silica film side, wherein the geometrical film thickness of the light absorbing film is from 5 to 25 nm, and the geometrical film thickness of the silica film is from 70 to 110 nm.Type: GrantFiled: December 12, 1995Date of Patent: November 25, 1997Assignee: Asahi Glass Company, Ltd.Inventors: Takuji Oyama, Yoshihito Katayama
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Patent number: 5045751Abstract: A cathode ray tube has an insulating layer formed at at least a part of the outer surface of a neck tube.The insulating layer is a layer obtained by coating and baking a sol prepared by dispersing one or two or more metal alkoxides and metal salts in a hydrophilic oligomer state by adding water and an acid to a solution having one or two or more metal alkoxides and metal salts dissolved in an organic solvent such as an alcohol.Type: GrantFiled: October 20, 1989Date of Patent: September 3, 1991Assignee: Asahi Glass Company Ltd.Inventors: Takashi Numata, Yusuke Kobayashi, Yoshihito Katayama, Junichi Iura, Toshiyasu Kawaguchi, Tsunehiko Sugawara