Patents by Inventor Satoru Kuroki
Satoru Kuroki 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: 6728095Abstract: An electric double layer capacitor including a positive electrode assembly and a negative electrode assembly, each electrode assembly having a porous layer including a carbonaceous powder and a fluorine-containing polymer formed on at least one side of an aluminum foil current collector, the positive electrode and the negative electrode being disposed so that the porous layer of the positive electrode assembly and the porous layer of the negative electrode assembly face each other with a separator interposed therebetween to form an element, the element being impregnated with a non-aqueous electrolyte and accommodated in a sealed container, wherein the thickness of the porous layer is from 80 to 200 &mgr;m, the thickness of the aluminum foil current collector is from 20 to 80 &mgr;m, the thickness of the separator is from 30 to 170 &mgr;m, and the density of the porous layer is from 0.50 to 0.Type: GrantFiled: December 21, 2001Date of Patent: April 27, 2004Assignee: Asahi Glass Company Ltd.Inventors: Manabu Suhara, Kazuya Hiratsuka, Katsuji Ikeda, Takeshi Kawasato, Yoshiaki Higuchi, Takamichi Ishikawa, Satoru Kuroki, Sadao Kanetoku, Naoki Yoshida, Naruaki Tomita
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Patent number: 6566440Abstract: A polytetrafluoroethylene agglomerated product obtained from a polytetrafluoroethylene powder and a coke powder, wherein the polytetrafluoroethylene powder contains at least 8.3 mass % of a polytetrafluoroethylene fine powder having a particle diameter of from 0.1 to 9.5 &mgr;m, and the mass ratio of the polytetrafluoroethylene powder/the coke powder is 95-60/5-40.Type: GrantFiled: November 14, 2001Date of Patent: May 20, 2003Assignee: Asahi Glass Company, LimitedInventors: Satoru Kuroki, Takamichi Ishikawa, Masumi Nomura, Tadao Chiba
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Patent number: 6538058Abstract: A PTFE composition comprising a dispersion-polymerized polytetrafluoroethylene (PTFE) and a filler, wherein the powder irregular shape ratio of the PTFE is at most 50%, and a PTFE granulated product obtained by granulating the PTFE composition. The composition is produced by jetting high pressure water to a mixture comprising the dispersion-polymerized PTFE and the filler. The dispersion-polymerized PTFE composition and granulated product thus obtained are suitable for molding.Type: GrantFiled: September 24, 2001Date of Patent: March 25, 2003Assignees: Asahi Glass Company, Limited, Asahi Glass Fluoropolymers Co., Ltd.Inventors: Shigeki Kobayashi, Shinya Higuchi, Hideo Katsu, Mitsuharu Morozumi, Satoru Kuroki
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Patent number: 6525923Abstract: A process for producing an electrode for an electric double layer capacitor, which includes extruding a mixture including a carbonaceous material, a polytetrafluoroethylene and a processing aid by paste extrusion, and rolling the obtained extruded product by rolling rolls to form it into a sheet shape.Type: GrantFiled: November 14, 2001Date of Patent: February 25, 2003Assignee: Asahi Glass Company Ltd.Inventors: Takamichi Ishikawa, Satoru Kuroki, Manabu Suhara
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Publication number: 20020107320Abstract: A polytetrafluoroethylene agglomerated product obtained from a polytetrafluoroethylene powder and a coke powder, wherein the polytetrafluoroethylene powder contains at least 8.3 mass % of a polytetrafluoroethylene fine powder having a particle diameter of from 0.1 to 9.5 &mgr;&mgr;m, and the mass ratio of the polytetrafluoroethylene powder/the coke powder is 95-60/5-40.Type: ApplicationFiled: November 14, 2001Publication date: August 8, 2002Applicant: Asahi Glass Company, LimitedInventors: Satoru Kuroki, Takamichi Ishikawa, Masumi Nomura, Tadao Chiba
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Publication number: 20020080557Abstract: An electric double layer capacitor comprising a positive electrode assembly and a negative electrode assembly, each electrode assembly having a porous layer comprising a carbonaceous powder and a fluorine-containing polymer formed on at least one side of an aluminum foil current collector, the positive electrode and the negative electrode being disposed so that the porous layer of the positive electrode assembly and the porous layer of the negative electrode assembly face each other with a separator interposed therebetween to form an element, the element being impregnated with a non-aqueous electrolyte and accommodated in a sealed container, wherein the thickness of the porous layer is from 80 to 200 &mgr;m, the thickness of the aluminum foil current collector is from 20 to 80 &mgr;m, the thickness of the separator is from 30 to 170 &mgr;m, and the density of the porous layer is from 0.50 to 0.80 g/cm3.Type: ApplicationFiled: December 21, 2001Publication date: June 27, 2002Applicant: ASAHI GLASS COMPANY LTD.Inventors: Manabu Suhara, Kazuya Hiratsuka, Katsuji Ikeda, Takeshi Kawasato, Yoshiaki Higuchi, Takamichi Ishikawa, Satoru Kuroki, Sadao Kanetoku, Naoki Yoshida, Naruaki Tomita
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Publication number: 20020061956Abstract: A PTFE composition comprising a dispersion-polymerized polytetrafluoroethylene (PTFE) and a filler, wherein the powder irregular shape ratio of the PTFE is at most 50%, and a PTFE granulated product obtained by granulating the PTFE composition. The composition is produced by jetting high pressure water to a mixture comprising the dispersion-polymerized PTFE and the filler. The dispersion-polymerized PTFE composition and granulated product thus obtained are suitable for molding.Type: ApplicationFiled: September 24, 2001Publication date: May 23, 2002Applicant: Asahi Glass Company, LimitedInventors: Shigeki Kobayashi, Shinya Higuchi, Hideo Katsu, Mitsuharu Morozumi, Satoru Kuroki
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Publication number: 20020054472Abstract: A process for producing an electrode for an electric double layer capacitor, which comprises extruding a mixture comprising a carbonaceous material, a polytetrafluoroethylene and a processing aid by paste extrusion, and rolling the obtained extruded product by rolling rolls to form it into a sheet shape.Type: ApplicationFiled: November 14, 2001Publication date: May 9, 2002Applicant: ASAHI GLASS COMPANY LTD.Inventors: Takamichi Ishikawa, Satoru Kuroki, Manabu Suhara
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Patent number: 6383427Abstract: A process for producing an electrode for an electric double layer capacitor, which comprises extruding a mixture comprising a carbonaceous material, a polytetrafluoroethylene and a processing aid by paste extrusion, and rolling the obtained extruded product by rolling rolls to form it into a sheet shape.Type: GrantFiled: December 16, 1998Date of Patent: May 7, 2002Assignee: Asahi Glass Company, Ltd.Inventors: Takamichi Ishikawa, Satoru Kuroki, Manabu Suhara
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Patent number: 6349027Abstract: An electric double layer capacitor including a positive electrode assembly and a negative electrode assembly, each electrode assembly having a porous layer including a carbonaceous powder and a fluorine-containing polymer formed on at least one side of an aluminum foil current collector, the positive electrode and the negative electrode being disposed so that the porous layer of the positive electrode assembly and the porous layer of the negative electrode assembly face each other with a separator interposed therebetween to form an element, the element being impregnated with a non-aqueous electrolyte and accommodated in a sealed container, wherein the thickness of the porous layer is from 80 to 200 &mgr;m, the thickness of the aluminum foil current collector is from 20 to 80 &mgr;m, the thickness of the separator is from 30 to 170 &mgr;m, and the density of the porous layer is from 0.50 to 0.80 g/cm3.Type: GrantFiled: February 22, 1999Date of Patent: February 19, 2002Assignee: Asahi Glass Company, Ltd.Inventors: Manabu Suhara, Kazuya Hiratsuka, Katsuji Ikeda, Takeshi Kawasato, Yoshiaki Higuchi, Takamichi Ishikawa, Satoru Kuroki, Sadao Kanetoku, Naoki Yoshida, Naruaki Tomita
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Publication number: 20010042881Abstract: A process for producing an electrode for an electric double layer capacitor, which comprises extruding a mixture comprising a carbonaceous material, a polytetrafluoroethylene and a processing aid by screw extrusion, and rolling the obtained extruded product by rolling rolls to form it into a sheet shape.Type: ApplicationFiled: June 6, 2001Publication date: November 22, 2001Applicant: Asahi Glass Company, Ltd.Inventors: Takamichi Ishikawa, Satoru Kuroki, Manabu Suhara, Sadao Kanetoku
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Patent number: 6264707Abstract: A process for producing an electrode for an electric double layer capacitor, which comprises extruding a mixture comprising a carbonaceous material, a polytetrafluoroethylene and a processing aid by screw extrusion, and rolling the obtained extruded product by rolling rolls to form it into a sheet shape.Type: GrantFiled: January 28, 1999Date of Patent: July 24, 2001Assignee: Asahi Glass Company Ltd.Inventors: Takamichi Ishikawa, Satoru Kuroki, Manabu Suhara, Sadao Kanetoku
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Publication number: 20010001590Abstract: A process for producing an electrode for an electric double layer capacitor, which comprises extruding a mixture comprising a carbonaceous material, a polytetrafluoroethylene and a processing aid by paste extrusion, and rolling the obtained extruded product by rolling rolls to form it into a sheet shape.Type: ApplicationFiled: December 16, 1998Publication date: May 24, 2001Inventors: TAKAMICHI ISHIKAWA, SATORU KUROKI, MANABU SUHARA