Patents by Inventor Toshiki Sato
Toshiki Sato 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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Publication number: 20100195231Abstract: The present invention provides a reflection film, a reflection film laminate which are less likely to undergo agglomeration or sulfidation of an Ag thin film due to heat, and a LED, an organic EL display, and an organic EL illuminating instrument, each including any of these. The reflection film in accordance with the present invention is a reflection film formed on a substrate, characterized by being an Ag alloy film including Ag as a main component, and Bi in an amount of 0.02 atomic percent or more, and further including one or more of V, Ge, and Zn in a total content of 0.02 atomic percent or more, and satisfying the following expression (1): 7×[A]+13×[Bi]?8??(1) where [A] (atomic percent) denotes the content of one or more of the V, Ge, and Zn, and [Bi] (atomic percent) denotes the content of Bi.Type: ApplicationFiled: September 25, 2008Publication date: August 5, 2010Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Jun Suzuki, Toshiki Sato, Takayuki Tsubota, Shinichi Tanifuji
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Patent number: 7767041Abstract: The sputtering target made of a Ag—Bi-base alloy contains Bi in solid solution with Ag. The sputtering target has an intensity of precipitated Bi of 0.01 at %?1 or less, as calculated by the following mathematical expression (1) based on analysis results of X-ray diffraction, and/or a sum of area ratios of predetermined intensities (third to sixth intensities in 8 intensities) of 89% or more, wherein the area ratios are obtained by calculating a planar distribution of characteristic X-ray intensities of Bi according to X-ray microanalysis: intensity of precipitated Bi=[IBi(102)/IAg(111)+IAg(200)+IAg(220)+IAg(311))]/[Bi]. Remarkable lowering of the yield of Bi content in resultant films can be suppressed by using the sputtering target.Type: GrantFiled: May 13, 2004Date of Patent: August 3, 2010Assignees: Kabushiki Kaisha Kobe Seiko Sho, Kobelco Research Institute Inc.Inventors: Katsutoshi Takagi, Junichi Nakai, Yuuki Tauchi, Toshiki Sato, Hitoshi Matsuzaki, Hideo Fujii
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Patent number: 7758942Abstract: The present invention relates to an Ag alloy film. Particularly, it is preferably used as a reflective film or semi-transmissive reflective film for an optical information recording medium having high thermal conductivity/high reflectance/high durability in the field of optical information recording media, an electromagnetic-shielding film excellent in Ag aggregation resistance, and an optical reflective film on the back of a reflection type liquid crystal display device, or the like. The Ag alloy film of the present invention comprises an Ag base alloy containing Bi and/or Sb in a total amount of 0.005 to 10% (in terms of at %). Further, the present invention relates to a sputtering target used for the deposition of such an Ag alloy film.Type: GrantFiled: April 10, 2008Date of Patent: July 20, 2010Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Yuuki Tauchi, Katsutoshi Takagi, Junichi Nakai, Toshiki Sato
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Publication number: 20100151358Abstract: A method for manufacturing a fuel cell separator, including: forming by a PVD method a precious metal layer on a surface of a substrate, as a fuel cell separator, made of Ti or a Ti alloy, wherein the precious metal layer includes at least one precious metal selected from Ru, Rh, Pd, Os, Ir, Pt and Au and has a thickness of 2 nm or more, and a heat treatment wherein the substrate on which the precious metal layer was formed in the precious metal layer forming is subjected to a heat treatment at a predetermined heat treatment temperature and under a predetermined oxygen partial pressure. According to the method, a fuel cell separator made of Ti or a Ti alloy having excellent corrosion resistance, good adhesion of a precious metal layer, low contact resistance, and further excellent productivity can be produced.Type: ApplicationFiled: September 25, 2007Publication date: June 17, 2010Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Toshiki Sato, Jun Suzuki, Takashi Yashiki, Masahito Fukuda, Yasuko Fukuda
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Publication number: 20100142987Abstract: A fixing device includes a heater, first and second pressure-applying members, a belt support member, a fixing belt, a contact member and a temperature detector. The fixing belt is entrained about the heater, the first pressure-applying member and the belt support member. The second pressure-applying member opposes the first pressure-applying member through the fixing belt. The contact member, which extends in the width direction of the fixing belt, is in contact with an inner surface of the fixing belt. The temperature detector, which is disposed between the belt support member and the contact member, detects a temperature of the fixing belt through the contact member.Type: ApplicationFiled: November 25, 2009Publication date: June 10, 2010Applicant: OKI DATA CORPORATIONInventor: Toshiki Sato
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Patent number: 7722942Abstract: The present invention relates to an Ag alloy film. Particularly, it is preferably used as a reflective film or semi-transmissive reflective film for an optical information recording medium having high thermal conductivity/high reflectance/high durability in the field of optical information recording media, an electromagnetic-shielding film excellent in Ag aggregation resistance, and an optical reflective film on the back of a reflection type liquid crystal display device, or the like. The Ag alloy film of the present invention comprises an Ag base alloy containing Bi and/or Sb in a total amount of 0.005 to 10% (in terms of at %). Further, the present invention relates to a sputtering target used for the deposition of such an Ag alloy film.Type: GrantFiled: April 12, 2006Date of Patent: May 25, 2010Assignee: Kobe Steel, Ltd.Inventors: Yuuki Tauchi, Katsutoshi Takagi, Junichi Nakai, Toshiki Sato
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Publication number: 20100119913Abstract: A metal separator 1 for a fuel cell according to the invention is a metal separator for a fuel cell manufactured by using a metal substrate 2 with a flat surface, or with concave gas flow paths formed on at least a part of the surface. The metal separator 1 includes an acid-resistant metal film 3 formed over the surface of the metal substrate 2, and containing one or more kinds of non-noble metals selected from the group comprised of Zr, Nb, and Ta, and a conductive alloy film 4 formed over the acid-resistant metal film 3, and containing one or more kinds of noble metals selected from the group comprised of Au and Pt, and one or more kinds of non-noble metals selected from the group comprised of Zr, Nb, and Ta. A method for manufacturing the metal separator for a fuel cell according to the invention includes a step S1 of depositing an acid-resistant metal film, and a step S2 of depositing a conductive alloy film.Type: ApplicationFiled: March 5, 2008Publication date: May 13, 2010Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)Inventors: Shinichi Tanifuji, Hirotaka Ito, Toshiki Sato, Jun Suzuki, Yoshinori Ito, Jun Hisamoto
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Publication number: 20100119882Abstract: A titanium material for an electrode comprising a titanium alloy substrate containing at least one noble metal element selected from platinum group elements, Au and Ag; and a layer of a mixture formed on the titanium alloy substrate, said mixture comprising the noble metal element precipitated from the titanium alloy substrate and titanium oxide, and said layer having an average thickness of up to 200 nm; wherein the mixture layer on the surface and the titanium alloy substrate have a conductivity in terms of contact resistance as determined by the following method of up to 12 m?·cm2. The contact resistance is determined by placing a carbon cloth having an average thickness of 0.Type: ApplicationFiled: July 26, 2006Publication date: May 13, 2010Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Jun Suzuki, Toshiki Sato, Kasumi Yanagisawa, Takashi Yashiki, Masahito Fukuda
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Publication number: 20100038233Abstract: The sputtering target made of a Ag—Bi-base alloy contains Bi in solid solution with Ag. The sputtering target has an intensity of precipitated Bi of 0.01 at %?1 or less, as calculated by the following mathematical expression (1) based on analysis results of X-ray diffraction, and/or a sum of area ratios of predetermined intensities (third to sixth intensities in 8 intensities) of 89 % or more, wherein the area ratios are obtained by calculating a planar distribution of characteristic X-ray intensities of Bi according to X-ray microanalysis: intensity of precipitated Bi=[IBi(102)/IAg(111)+IAg(200)+IAg(220)+IAg(311))]/[Bi]. Remarkable lowering of the yield of Bi content in resultant films can be suppressed by using the sputtering target.Type: ApplicationFiled: October 23, 2009Publication date: February 18, 2010Applicants: Kabushiki Kaisha Kobe Seiko Sho, KOBELCO RESEARCH INSTITUTE, INC.Inventors: Katsutoshi Takagi, Junichi Nakai, Yuuki Tauchi, Toshiki Sato, Hitoshi Matsuzaki, Hideo Fujii
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Publication number: 20100035118Abstract: The present invention concerns an alloy film for a metal separator for a fuel cell characterized by containing at least one noble metal element selected from Au and Pt and at least one non-noble metal element selected from the group consisting of Ti, Zr, Nb, Hf, and Ta, at a content ratio of noble metal element/non-noble metal element of 35/65 to 95/5, and having a film thickness of 2 nm or more. The present invention also relates to a manufacturing method of an alloy film for the metal separator for the fuel cell and a target material for sputtering, as well as the metal separator and the fuel sell. The alloy film for the metal separator for the fuel cell according to the invention is excellent in the corrosion resistance, has low contact resistance, can maintain the low contact resistance for a long time even in a corrosive environment, and is excellent further in the productivity.Type: ApplicationFiled: December 12, 2007Publication date: February 11, 2010Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEE, LTD)Inventors: Toshiki Sato, Jun Suzuki, Yoshinori Ito, Hirotaka Ito, Shinichi Tanifuji
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Publication number: 20090297951Abstract: Disclosed is anode for use in a lithium ion secondary battery. The anode includes an anode current collector and an anode active material arranged thereon, in which the anode active material contains amorphous carbon and at least one metal dispersed in the amorphous carbon, and the at least one metal is selected from: 30 to 70 atomic percent of Si; and 1 to 40 atomic percent of Sn. The anode gives a lithium ion secondary battery that has a high charge/discharge capacity and is resistant to deterioration of its anode active material even after repetitive charge/discharge cycles.Type: ApplicationFiled: April 16, 2009Publication date: December 3, 2009Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Shoo KATSURA, Jun Hisamoto, Toshiki Sato, Jun Suzuki, Shinichi Tanifuji
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Publication number: 20090211667Abstract: Disclosed herein is a surface treatment method of a titanium material for electrodes characterized by including: a titanium oxide layer formation step S1 of forming a titanium oxide layer with a thickness of 10 nm or more and 80 nm or less on the surface of a titanium material including pure titanium or a titanium alloy; a noble metal layer formation step S2 of forming a noble metal layer with a thickness of 2 nm or more including at least one noble metal selected from Au, Pt, and Pd on the titanium oxide layer by a PVD method; and a heat treatment step S3 of heat treating the titanium material having the noble metal layer formed thereon at a temperature of 300° C. or more and 800° C. or less.Type: ApplicationFiled: December 1, 2008Publication date: August 27, 2009Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Jun Suzuki, Toshiki Sato, Jun Hisamoto, Yoshinori Ito, Shinichi Tanifuji, Takashi Yashiki
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Patent number: 7566417Abstract: The present invention relates to an Ag alloy film. Particularly, it is preferably used as a reflective film or semi-transmissive reflective film for an optical information recording medium having high thermal conductivity/high reflectance/high durability in the field of optical information recording media, an electromagnetic-shielding film excellent in Ag aggregation resistance, and an optical reflective film on the back of a reflection type liquid crystal display device, or the like. The Ag alloy film of the present invention comprises an Ag base alloy containing Bi and/or Sb in a total amount of 0.005 to 10% (in terms of at %). Further, the present invention relates to a sputtering target used for the deposition of such an Ag alloy film.Type: GrantFiled: February 14, 2006Date of Patent: July 28, 2009Assignee: Kobe Steel, Ltd.Inventors: Yuuki Tauchi, Katsutoshi Takagi, Junichi Nakai, Toshiki Sato
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Publication number: 20090181283Abstract: Disclosed herein is a method for regenerating a separator for a fuel cell in which the separator is composed of a substrate of Ti or Ti alloy and a conductive film formed thereon. The method includes a step of removing the conductive film from the separator for a fuel cell and also removing part of the surface of the substrate, thereby giving a regenerated substrate, and a step of forming a regenerated conductive film on the regenerated substrate. The conductive film and the regenerated conductive film are at least one species of noble metal or alloy thereof selected from the group of noble metals consisting of Au, Pt, and Pd, or an alloy composed of at least one species selected from the group of noble metals and one species selected from the group of metals consisting of Ti, Zr, Hf, Nb, Ta, and Si.Type: ApplicationFiled: December 22, 2008Publication date: July 16, 2009Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Toshiki Sato, Jun Hisamoto, Jun Suzuki, Yoshinori Ito, Shinichi Tanifuji
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Publication number: 20090136245Abstract: An image forming apparatus forming an image by fixing a developer on a recording medium with heat includes a fixing member, a pressure member, a drive unit, a heat unit, a temperature detection unit, a control unit, and a temperature record storing unit. The fixing member is rotatably supported and heats the recording medium. The pressure member presses against the fixing member. The drive unit rotationally drives the fixing member. The heat unit heats the fixing member. The temperature detection unit detects temperature of the fixing member. The control unit controls the heat unit and the drive unit. The temperature record storing unit stores a temperature record of the temperature detection unit. The control unit controls, based on the temperature record of the temperature record storing unit, a rotation drive of the drive unit in a case of non-fixing.Type: ApplicationFiled: November 26, 2008Publication date: May 28, 2009Applicant: OKI DATA CORPORATIONInventor: Toshiki SATO
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Publication number: 20090130300Abstract: A titanium substrate, for forming a separator for a fuel cell, is made of titanium or a titanium alloy and has surface layers containing carbon having binding energy in the range of to 284 eV as measured by x-ray photoelectron spectroscopy in a carbon content of 25% at. or below.Type: ApplicationFiled: September 22, 2008Publication date: May 21, 2009Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.)Inventors: Jun Suzuki, Toshiki Sato, Takashi Yashiki, Yoshinori Ito, Shinichi Tanifuji
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Publication number: 20090117313Abstract: The present invention relates to an Ag alloy film. Particularly, it is preferably used as a reflective film or semi-transmissive reflective film for an optical information recording medium having high thermal conductivity/high reflectance/high durability in the field of optical information recording media, an electromagnetic-shielding film excellent in Ag aggregation resistance, and an optical reflective film on the back of a reflection type liquid crystal display device, or the like. The Ag alloy film of the present invention comprises an Ag base alloy containing Bi and/or Sb in a total amount of to 10% (in terms of at %). Further, the present invention relates to a sputtering target used for the deposition of such an Ag alloy film.Type: ApplicationFiled: December 23, 2008Publication date: May 7, 2009Applicant: KABUSHIKI KAISHA KOBE SEIKO SHOInventors: Yuuki TAUCHI, Katsutoshi Takagi, Junichi Nakai, Toshiki Sato
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Patent number: 7514037Abstract: The present invention relates to an Ag alloy film. Particularly, it is preferably used as a reflective film or semi-transmissive reflective film for an optical information recording medium having high thermal conductivity/high reflectance/high durability in the field of optical information recording media, an electromagnetic-shielding film excellent in Ag aggregation resistance, and an optical reflective film on the back of a reflection type liquid crystal display device, or the like. The Ag alloy film of the present invention comprises an Ag base alloy containing Bi and/or Sb in a total amount of 0.005 to 10% (in terms of at %). Further, the present invention relates to a sputtering target used for the deposition of such an Ag alloy film.Type: GrantFiled: August 5, 2003Date of Patent: April 7, 2009Assignee: Kobe Steel, Ltd.Inventors: Yuuki Tauchi, Katsutoshi Takagi, Junichi Nakai, Toshiki Sato
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Publication number: 20090074441Abstract: An image forming apparatus is provided that has a first pressurizing member, a heating member, a belt member laid across the heating member and the first pressurizing member in a tensioned state, the belt member being heated by the heating member, a second pressurizing member arranged at such position that the second pressurizing member is pressed against the first pressurizing member via the belt member, a fixing unit for fixing a developer image on a medium between the belt member and the second pressurizing member, a heating control unit for controlling heating of the heating member to drive a temperature of the heating member toward a predetermined target temperature, and a first temperature detection unit for detecting a temperature of the first pressurizing member, wherein the heating control unit determines the targeted temperature based on the temperature of the first pressurizing member detected by the first temperature detection unit.Type: ApplicationFiled: September 15, 2008Publication date: March 19, 2009Applicant: OKI DATA CORPORATIONInventor: Toshiki SATO
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Publication number: 20090061142Abstract: The present invention relates to an Ag alloy film. Particularly, it is preferably used as a reflective film or semi-transmissive reflective film for an optical information recording medium having high thermal conductivity/high reflectance/high durability in the field of optical information recording media, an electromagnetic-shielding film excellent in Ag aggregation resistance, and an optical reflective film on the back of a reflection type liquid crystal display device, or the like. The Ag alloy film of the present invention comprises an Ag base alloy containing Bi and/or Sb in a total amount of 0.005 to 10% (in terms of at %). Further, the present invention relates to a sputtering target used for the deposition of such an Ag alloy film.Type: ApplicationFiled: July 31, 2008Publication date: March 5, 2009Applicant: Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)Inventors: Yuuki TAUCHI, Katsutoshi Takagi, Junichi Nakai, Toshiki Sato