Patents by Inventor Akihiro Matsuyama
Akihiro Matsuyama 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: 11959197Abstract: A first aspect of the present invention is carbon fiber wherein the surface of a monofilament has a center line average roughness Ra of 6.0 nm or more and 13 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. A second aspect of the present invention is carbon fiber precursor acrylic fiber wherein the surface of a monofilament has a center line average roughness Ra of 18 nm or more and 27 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. The carbon fiber according to the first aspect is obtained by stabilizing and carbonizing under specific conditions the carbon fiber precursor acrylic fiber according to the second aspect.Type: GrantFiled: August 15, 2019Date of Patent: April 16, 2024Assignee: Mitsubishi Chemical CorporationInventors: Naomasa Matsuyama, Yuutarou Nakamura, Norifumi Hirota, Hiroko Matsumura, Katsuhiko Ikeda, Kouki Wakabayashi, Tadashi Ootani, Akihiro Itou, Kenji Hirano, Akito Hatayama, Kenji Kaneta, Atsushi Nakajima
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Patent number: 11960182Abstract: Provided is a light absorption anisotropic film capable of preparing an image display device having excellent display performance and excellent durability, and a laminate and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film is used for an image display device, which is formed of a liquid crystal composition containing a liquid crystal compound and a dichroic substance, in which in a signal derived from the dichroic substance detected by time-of-flight secondary ion mass spectrometry, a relationship between a maximum intensity Imax of the light absorption anisotropic film in a thickness direction and an intensity Isur1 in a surface of the light absorption anisotropic film on a viewing side of the image display device satisfies Expression (I-1) 2.0?Imax/Isur1.Type: GrantFiled: December 1, 2022Date of Patent: April 16, 2024Assignee: FUJIFILM CorporationInventors: Yumi Kato, Naoki Koito, Hiroshi Matsuyama, Akihiro Sugita, Takehiro Kasahara, Naoyoshi Yamada
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Patent number: 9126255Abstract: A press die and a processing method of the press die surface, and a manufacturing method of a vehicle body of an automobile, are capable of maintaining a high non-defective product rate of works after press processing, even in a case in which foreign matter such as iron filings and the like have adhered to a die surface. A press die for sheet metal forming has a multitude of concave portions on a die surface, and has a roughness (Ry) of a die surface on which the multitude of concave portions has been formed of 30 to 38 ?m.Type: GrantFiled: July 31, 2008Date of Patent: September 8, 2015Assignee: HONDA MOTOR CO., LTD.Inventors: Takayuki Yagi, Akihiro Matsuyama, Shinichi Koyama, Masato Fukushima, Kinji Takahashi, Kazumichi Tosa, Masashi Seino, Takeshi Terada, Yuu Yamakawa, Motoo Takano
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Publication number: 20150050552Abstract: Provided is a lithium ion secondary battery demonstrating improved manganese dissolution inhibition performance when the lithium ion secondary battery is charged and discharged. In the lithium ion secondary battery, a positive electrode (64) includes a positive electrode collector (62) and a positive electrode active material layer (66) including at least a positive electrode active material (70) and formed on the positive electrode collector. The positive electrode active material (70) is mainly constituted by a manganese-containing lithium complex oxide (72) including lithium and at least manganese as a transition metal element and includes a coating film (74) of an amorphous structure including at least iron (Fe) and fluorine (F) formed on at least part of a surface of the manganese-containing lithium complex oxide.Type: ApplicationFiled: July 13, 2012Publication date: February 19, 2015Inventors: Akihiro Matsuyama, Seishu Komune
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Patent number: 8161734Abstract: An exhaust gas purification device includes an exhaust pipe defining an exhaust passage, a first SOX adsorption portion having a first SOX adsorption material provided in the exhaust passage, a second SOX adsorption portion having a second SOX adsorption material provided in the exhaust passage, and a NOX catalyst provided downstream of the first SOX adsorption portion and the second SOX adsorption portion in the exhaust passage. The first SOX adsorption material is configured to adsorb SOX in the combustion gas at a temperature lower than a first set temperature. The second SOX adsorption material is configured to store SOX in the combustion gas at a temperature equal to or higher than a second set temperature, and the stored SOX can be kept at a temperature lower than the second set temperature. Therefore, the exhaust gas purification device can adsorb SOX in the exhaust gas with high efficiency.Type: GrantFiled: May 12, 2009Date of Patent: April 24, 2012Assignee: Denso CorporationInventors: Hideto Takeda, Akihiro Matsuyama, Noriyuki Kobayashi, Yugo Osaka
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Patent number: 8079643Abstract: One aspect of the present invention can include a surface layer made of a fabric material and the surface layer covering one or more portions of a top plate main portion, top plate side portions, outside portions, a seat back portion, and a headrest portion has been subjected to an antiallergenic treatment and the antiallergenic treatment is a treatment in which a back side surface of the surface layer is dipped in an antiallergenic agent containing an aromatic hydroxy compound as an active ingredient.Type: GrantFiled: August 8, 2007Date of Patent: December 20, 2011Assignees: Toyota Boshoku Kabushiki Kaisha, Sekisui Chemical Co., Ltd.Inventors: Norie Hara, Akihiro Matsuyama, Kazuhiro Takami, Mitsuhito Teramoto
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Publication number: 20100206037Abstract: A press die and a processing method of the press die surface, and a manufacturing method of a vehicle body of an automobile, are capable of maintaining a high non-defective product rate of works after press processing, even in a case in which foreign matter such as iron filings and the like have adhered to a die surface. A press die for sheet metal forming has a multitude of concave portions on a die surface, and has a roughness (Ry) of a die surface on which the multitude of concave portions has been formed of 30 to 38 ?m.Type: ApplicationFiled: July 31, 2008Publication date: August 19, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Takayuki Yagi, Akihiro Matsuyama, Shinichi Koyama, Masato Fukushima, Kinji Takahashi, Kazumichi Tosa, Masashi Seino, Takeshi Terada, Yuu Yamakawa, Motoo Takano
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Publication number: 20090277163Abstract: An exhaust gas purification device includes an exhaust pipe defining an exhaust passage, a first SOX adsorption portion having a first SOX adsorption material provided in the exhaust passage, a second SOX adsorption portion having a second SOX adsorption material provided in the exhaust passage, and a NOX catalyst provided downstream of the first SOX adsorption portion and the second SOX adsorption portion in the exhaust passage. The first SOX adsorption material is configured to adsorb SOX in the combustion gas at a temperature lower than a first set temperature. The second SOX adsorption material is configured to store SOX in the combustion gas at a temperature equal to or higher than a second set temperature, and the stored SOX can be kept at a temperature lower than the second set temperature. Therefore, the exhaust gas purification device can adsorb SOX in the exhaust gas with high efficiency.Type: ApplicationFiled: May 12, 2009Publication date: November 12, 2009Applicant: DENSO CORPORATIONInventors: Hideto Takeda, Akihiro Matsuyama, Noriyuki Kobayashi, Yugo Osaka
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Publication number: 20090258556Abstract: A covering material for a vehicle seat may include a base material constructed of polyester fiber containing fabric and an electrically conductive agent applied to the base material. The electrically conductive agent may include a copolymer of polyethylene terephthalate and polyethyleneglycol.Type: ApplicationFiled: April 7, 2009Publication date: October 15, 2009Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kousuke TANAKA, Akihiro MATSUYAMA
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Publication number: 20090224581Abstract: One aspect of the present invention can include a surface layer made of a fabric material and the surface layer covering one or more portions of a top plate main portion, top plate side portions, outside portions, a seat back portion, and a headrest portion has been subjected to an antiallergenic treatment and the antiallergenic treatment is a treatment in which a back side surface of me surface layer is dipped in an antiallergenic agent containing an aromatic hydroxy compound as an active ingredient.Type: ApplicationFiled: August 8, 2007Publication date: September 10, 2009Applicants: Toyota Boshoku Kabushiki Kaisha, Sekisui Chemical Co., Ltd.Inventors: Norie Hara, Akihiro Matsuyama, Kazuhiro Takami, Mitsuhito Teramoto
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Patent number: 6503962Abstract: The present invention is for providing a synthetic resin composition capable of effectively deodorizing amine malodor causing substances such as trimethyl amine. In a synthetic resin composition comprising an aqueous medium, a surfactant, and a polymer latex and a filler dispersed in the aqueous medium by the surfactant, a transitional metal supported silica gel having at least one selected from the group consisting of a transitional metal and a transitional metal compound supported by a silica gel and an activated carbon were used as the filler. Since the transitional metal or the transitional metal compound has an performs extremely well as a Lewis acid, it forms a complex with a Lewis base having an unpaired electron. That is, a malodor causing substance such as amines and ammonia having a nitrogen atom with an unpaired electron can be adsorbed efficiently.Type: GrantFiled: December 9, 1999Date of Patent: January 7, 2003Assignees: Toyoda Boshoku Corporation, Dainippon Ink and Chemicals, Inc.Inventors: Tomiko Mouri, Kazuhiro Fukumoto, Seiji Onoda, Yoshio Yamada, Hideki Ohno, Masako Furuta, Akihiro Matsuyama, Shigeyoshi Miura, Shirou Ueda
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Patent number: 5622778Abstract: A synthetic resin composition comprises an aqueous medium, a surfactant, and a resin and filler dispersed in the aqueous medium by the surfactant. The surfactant comprises a first high molecular weight compound having a weight-average molecular weight of at least 10000 and a second high molecular weight compound having a weight-average molecular weight of not less than 150 and less than 10000. In the synthetic resin composition, a solid material is well dispersed and the viscosity doesn't remarkably increase even if a solid content is increased. So, the increased amount of a non-volatile matter may be used and the storage stability improves. Further, flame retardation, deodorization, heat resistance and light fastness also improve. In addition, an interior material which is a fabric coated with the synthetic resin composition is provided. In the interior material, the texture, flame retardation, deodorization and light fastness improve without the deterioration of workability.Type: GrantFiled: January 26, 1996Date of Patent: April 22, 1997Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha, Toyoda Boshoku Corporation, Dainippon Ink and Chemicals, IncorporatedInventors: Mitsumasa Horii, Masahiro Sugiura, Seiji Onoda, Yoshio Yamada, Osamu Araki, Yoshiro Umemoto, Kazuo Ito, Takatoshi Sekihara, Akihiro Matsuyama, Masaaki Izumichi, Kiyoshi Umehara, Reizaburo Tomioka
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Patent number: 5539015Abstract: A synthetic resin composition comprises an aqueous medium, a surfactant, and a resin and filler dispersed in the aqueous medium by the surfactant. The surfactant comprises a first high molecular weight compound having a weight-average molecular weight of at least 10000 and a second high molecular weight compound having a weight-average molecular weight of not less than 150 and less than 10000. In the synthetic resin composition, a solid material is well dispersed and the viscosity doesn't remarkably increase even if a solid content is increased. So, the increased amount of a non-volatile matter may be used and the storage stability improves. Further, flame retardation, deodorization, heat resistance and light fastness also improve. In addition, an interior material coated with the synthetic resin composition is provided.Type: GrantFiled: May 27, 1994Date of Patent: July 23, 1996Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha, Toyoda Boshoku Corporation, Dainippon Ink and Chemicals, IncorporatedInventors: Mitsumasa Horii, Masahiro Sugiura, Seiji Onoda, Yoshio Yamada, Osamu Araki, Yoshiro Umemoto, Kazuo Ito, Takatoshi Sekihara, Akihiro Matsuyama, Masaaki Izumichi, Kiyoshi Umehara, Reizaburo Tomioka