Patents by Inventor Norihisa Yoshimoto
Norihisa Yoshimoto 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).
-
Publication number: 20190252694Abstract: A method for producing a fuel cell module including the steps of: forming, in an annular shape, a plurality of resin sheets in a solid state which at least partially contains fibers and overlapping the plurality of resin sheets with respective both surfaces of an electrode membrane assembly; and integrally joining the electrode membrane assembly, with which the plurality of resin sheets are overlapped, and a pair of separators to each other by adhesion by heating the electrode membrane assembly in a state where the electrode membrane assembly is sandwiched by the pair of separators.Type: ApplicationFiled: April 23, 2019Publication date: August 15, 2019Inventors: YOSHIFUMI TAGUCHI, NORIHISA YOSHIMOTO, TSUTOMU KAWASHIMA, MITSUO YOSHIMURA
-
Patent number: 10326150Abstract: A fuel cell module includes an electrode membrane assembly and a pair of separators. The electrode membrane assembly includes an electrode portion and a pair of gas diffusion layers. The electrode portion includes a polymer electrolyte membrane, an anode electrode formed on a first surface of the polymer electrolyte membrane, and a cathode electrode formed on a second surface of the polymer electrolyte membrane. One of the pair of gas diffusion layers is in contact with an anode surface of the electrode portion at which the anode electrode is disposed, and the other is in contact with a cathode surface of the electrode portion at which the cathode electrode is disposed. The separators sandwich the electrode membrane assembly from respective the anode surface and the cathode surface. The electrode membrane assembly and each separator are adhered to each other by a plurality of resin portions.Type: GrantFiled: August 25, 2015Date of Patent: June 18, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoshifumi Taguchi, Norihisa Yoshimoto, Tsutomu Kawashima, Mitsuo Yoshimura
-
Patent number: 10326148Abstract: A fuel cell gas diffusion layer includes a porous member containing electrically-conductive particles and polymeric resin as major components, and a plurality of holes extending from a main surface of the fuel cell gas diffusion layer are formed.Type: GrantFiled: October 18, 2013Date of Patent: June 18, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takeou Okanishi, Hiroshi Ishikawa, Keiichi Yamamoto, Tsutomu Kawashima, Yasushi Sugawara, Yoichiro Tsuji, Norihisa Yoshimoto, Miyuki Yoshimoto
-
Publication number: 20170229718Abstract: A fuel cell module includes an electrode membrane assembly and a pair of separators. The electrode membrane assembly includes an electrode portion and a pair of gas diffusion layers. The electrode portion includes a polymer electrolyte membrane, an anode electrode formed on a first surface of the polymer electrolyte membrane, and a cathode electrode formed on a second surface of the polymer electrolyte membrane. One of the pair of gas diffusion layers is in contact with an anode surface of the electrode portion at which the anode electrode is disposed, and the other is in contact with a cathode surface of the electrode portion at which the cathode electrode is disposed. The separators sandwich the electrode membrane assembly from respective the anode surface and the cathode surface. The electrode membrane assembly and each separator are adhered to each other by a plurality of resin portions made of a resin which at least partially contains fibers.Type: ApplicationFiled: August 25, 2015Publication date: August 10, 2017Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: YOSHIFUMI TAGUCHI, NORIHISA YOSHIMOTO, TSUTOMU KAWASHIMA, MITSUO YOSHIMURA
-
Publication number: 20140329167Abstract: A fuel cell gas diffusion layer includes a porous member containing electrically-conductive particles and polymeric resin as major components, and a plurality of holes extending from a main surface of the fuel cell gas diffusion layer are formed.Type: ApplicationFiled: October 18, 2013Publication date: November 6, 2014Applicant: PANASONIC CORPORATIONInventors: Takeou Okanishi, Hiroshi Ishikawa, Keiichi Yamamoto, Tsutomu Kawashima, Yasushi Sugawara, Yoichiro Tsuji, Norihisa Yoshimoto, Miyuki Yoshimoto
-
Patent number: 8546042Abstract: In a membrane electrode assembly of the present invention, at least one of a catalyst layer of an oxygen electrode and a catalyst layer of a fuel electrode includes a supported catalyst supporting a metal catalyst containing a platinum group element, a proton conductive polymer electrolyte, and at least one selected from (a) a complex-forming agent having a ligand that forms coordinate bonds with ions of the platinum group element and forms a complex, the ligand containing oxygen as a coordinating atom, (b) a complex of the platinum group element, a ligand of the complex containing oxygen as a coordinating atom, and (c) carbon that has a BET specific surface area of 100 m2/g or greater, satisfies at least one of (i) an R value of Raman spectrum of 0.5 or less and (ii) a lattice spacing d002 between (002) planes of 0.35 nm or less, and does not support the metal catalyst.Type: GrantFiled: September 13, 2007Date of Patent: October 1, 2013Assignee: Hitachi Maxell, Ltd.Inventors: Kohei Ugawa, Hiroshi Kashino, Norihisa Yoshimoto, Shoji Saibara
-
Publication number: 20100183943Abstract: In a membrane electrode assembly of the present invention, at least one of a catalyst layer of an oxygen electrode and a catalyst layer of a fuel electrode includes a supported catalyst supporting a metal catalyst containing a platinum group element, a proton conductive polymer electrolyte, and at least one selected from (a) a complex-forming agent having a ligand that forms coordinate bonds with ions of the platinum group element and forms a complex, the ligand containing oxygen as a coordinating atom, (b) a complex of the platinum group element, a ligand of the complex containing oxygen as a coordinating atom, and (c) carbon that has a BET specific surface area of 100 m2/g or greater, satisfies at least one of (i) an R value of Raman spectrum of 0.5 or less and (ii) a lattice spacing d002 between (002) planes of 0.35 nm or less, and does not support the metal catalyst.Type: ApplicationFiled: September 13, 2007Publication date: July 22, 2010Applicant: Hitachi Maxell, Ltd.Inventors: Kohei Ugawa, Hiroshi Kashino, Norihisa Yoshimoto, Shoki Saibara
-
Publication number: 20100104900Abstract: The present invention provides a fuel cell power generation system that includes: a fuel cell including a first membrane electrode assembly including a positive electrode for reducing oxygen, a negative electrode for oxidizing hydrogen, and a solid electrolyte membrane disposed between the positive electrode and the negative electrode; and a fuel channel for supplying hydrogen to the fuel cell. The fuel cell includes a plurality of the first membrane electrode assemblies, and a hydrogen eliminating apparatus capable of eliminating at least part of the hydrogen that is present in the system is connected to the fuel channel.Type: ApplicationFiled: March 14, 2008Publication date: April 29, 2010Inventors: Hiroshi Kashino, Norihisa Yoshimoto, Kohei Ugawa, Shoji Saibara
-
Patent number: 6936356Abstract: A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, a magnetic layer formed on the primer layer, and a backcoat layer formed on the other surface of the non-magnetic support, wherein the magnetic layer has a thickness of 0.30 ?m or less and a centerline average surface roughness Ra of 3.2 nm or less, and (P1?P0) is 30 nm or less and (P1?P20) is 5 nm or less in which P0 is an averaged height of projections of the magnetic layer, and P1, P2, - - - and P20 are heights of the highest, the second highest, - - - and the 20th highest projections of the magnetic layer, respectively.Type: GrantFiled: December 3, 2003Date of Patent: August 30, 2005Assignee: Hitachi Maxell, Ltd.Inventors: Masakazu Tani, Yoshiyuki Makita, Norihisa Yoshimoto, Kenichiro Yoshida
-
Patent number: 6926976Abstract: A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, a magnetic layer formed on the primer layer, and a backcoat layer formed on the other surface of the non-magnetic support, wherein the magnetic layer has a thickness of 0.30 ?m or less and a centerline average surface roughness Ra of 3.2 nm or less, and (P1?P0) is 30 nm or less and (P1?P20) is 5 nm or less in which P0 is an averaged height of projections of the magnetic layer, and P1, P2, - - - and P20 are heights of the highest, the second highest, - - - and the 20th highest projections of the magnetic layer, respectively.Type: GrantFiled: December 3, 2003Date of Patent: August 9, 2005Assignee: Hitachi Maxell, Ltd.Inventors: Masakazu Tani, Yoshiyuki Makita, Norihisa Yoshimoto, Kenichiro Yoshida
-
Patent number: 6921592Abstract: A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, a magnetic layer formed on the primer layer, and a backcoat layer formed on the other surface of the non-magnetic support, wherein the magnetic layer has a thickness of 0.30 ?m or less and a centerline average surface roughness Ra of 3.2 nm or less, and (P1?P0) is 30 nm or less and (P1-P20) is 5 nm or less in which P0 is an averaged height of projections of the magnetic layer, and P1, P2, - - - and P20 are heights of the highest, the second highest, - - - and the 20th highest projections of the magnetic layer, respectively.Type: GrantFiled: December 3, 2003Date of Patent: July 26, 2005Assignee: Hitachi Maxell, Ltd.Inventors: Masakazu Tani, Yoshiyuki Makita, Norihisa Yoshimoto, Kenichiro Yoshida
-
Publication number: 20040166374Abstract: A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, a magnetic layer formed on the primer layer, and a backcoat layer formed on the other surface of the non-magnetic support, wherein the magnetic layer has a thickness of 0.30 &mgr;m or less and a centerline average surface roughness Ra of 3.2 nm or less, and (P1-P0) is 30 nm or less and (P1-P20) is 5 nm or less in which P0 is an averaged height of projections of the magnetic layer, and P1, P2, - - - - and P20 are heights of the highest, the second highest, - - - and the 20th highest projections of the magnetic layer, respectively.Type: ApplicationFiled: December 3, 2003Publication date: August 26, 2004Applicant: Hitachi Maxell Ltd.Inventors: Masakazu Tani, Yoshiyuki Makita, Norihisa Yoshimoto, Kenichiro Yoshida
-
Publication number: 20040166373Abstract: A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, a magnetic layer formed on the primer layer, and a backcoat layer formed on the other surface of the non-magnetic support, wherein the magnetic layer has a thickness of 0.30 &mgr;m or less and a centerline average surface roughness Ra of 3.2 nm or less, and (P1-P0) is 30 nm or less and (P1-P20) is 5 nm or less in which P0 is an averaged height of projections of the magnetic layer, and P1, P2, - - - and P20 are heights of the highest, the secondhighest, - - - and the 20th highest projections of the magnetic layer, respectively.Type: ApplicationFiled: December 3, 2003Publication date: August 26, 2004Applicant: Hitachi Maxell Ltd.Inventors: Masakazu Tani, Yoshiyuki Makita, Norihisa Yoshimoto, Kenichiro Yoshida
-
Patent number: 6780531Abstract: A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, a magnetic layer formed on the primer layer, and a backcoat layer formed on the other surface of the non-magnetic support, wherein the magnetic layer has a thickness of 0.30 &mgr;m or less and a centerline average surface roughness Ra of 3.2 nm or less, and (P1−P0) is 30 nm or less and (P1−P20) is 5 nm or less in which P0 is an averaged height of projections of the magnetic layer, and P1, P2, - - - and P20 are heights of the highest, the second highest, - - - and the 20th highest projections of the magnetic layer, respectively.Type: GrantFiled: October 31, 2001Date of Patent: August 24, 2004Assignee: Hitachi Maxell, Ltd.Inventors: Masakazu Tani, Yoshiyuki Makita, Norihisa Yoshimoto, Kenichiro Yoshida
-
Publication number: 20040110036Abstract: A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, a magnetic layer formed on the primer layer, and a backcoat layer formed on the other surface of the non-magnetic support, wherein the magnetic layer has a thickness of 0.30 &mgr;m or less and a centerline average surface roughness Ra of 3.2 nm or less, and (P1-P0) is 30 nm or less and (P1-P20) is 5 nm or less in which P0 is an averaged height of projections of the magnetic layer, and P1, P2, - - - and P20 are heights of the highest, the second highest, - - - and the 20th highest projections of the magnetic layer, respectively.Type: ApplicationFiled: December 3, 2003Publication date: June 10, 2004Applicant: Hitachi Maxell Ltd.Inventors: Masakazu Tani, Yoshiyuki Makita, Norihisa Yoshimoto, Kenichiro Yoshida
-
Publication number: 20020164503Abstract: A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, a magnetic layer formed on the primer layer, and a backcoat layer formed on the other surface of the non-magnetic support, wherein the magnetic layer has a thickness of 0.30 &mgr;m or less and a centerline average surface roughness Ra of 3.2 nm or less, and (P1-P0) is 30 nm or less and (P1-P20) is 5 nm or less in which P0 is an averaged height of projections of the magnetic layer, and P1, P2, . . . and P20 are heights of the highest, the second highest, . . . and the 20th highest projections of the magnetic layer, respectively.Type: ApplicationFiled: October 31, 2001Publication date: November 7, 2002Inventors: Masakazu Tani, Yoshiyuki Makita, Norihisa Yoshimoto, Kenichiro Yoshida