Patents by Inventor Hiroyuki Takabayashi
Hiroyuki Takabayashi 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: 11955592Abstract: Provided is an electricity storage device having a high volumetric energy density and high reliability. The electricity storage device includes: an electrode assembly including first and second electrode plates and a separator interposed therebetween; an exterior housing that houses the electrode assembly; a lid that covers an opening of the exterior housing; and electrode terminals that are electrically connected to the electrode assembly and partially protrude from the lid to the outside. The lid has a liquid injection hole for injecting an electrolytic solution into the exterior housing. A tubular member extending from the lid toward the electrode assembly is provided between the outer surface of the lid and the electrode assembly so as to surround an opening of the liquid injection hole. A covering member connected to the tubular member and interposed between the liquid injection hole and the electrode assembly is provided.Type: GrantFiled: August 9, 2021Date of Patent: April 9, 2024Assignee: SANYO Electric Co., Ltd.Inventors: Hiroshi Takabayashi, Hiroyuki Yamada
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Patent number: 11732331Abstract: The present invention relates to an Ni-based alloy which is excellent in terms of wear resistance and high-temperature corrosion resistance and which includes 0.3?C?1.0 mass %, 36.0?Cr?50.0 mass %, and 3.0?Al?7.0 mass %, with the balance being Ni and unavoidable impurities, and relates to an Ni-based alloy product made of the Ni-based alloy according to the present invention, and methods for producing the Ni-based alloy product.Type: GrantFiled: May 25, 2021Date of Patent: August 22, 2023Assignee: DAIDO STEEL CO., LTD.Inventors: Kenji Sugiyama, Masashi Nagaya, Yusuke Kusafuka, Yoshihiko Koyanagi, Hiroyuki Takabayashi
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Patent number: 11268572Abstract: A rolling-sliding member that is high in hardness and continues to have a passivation film reliably even after being subjected to a process that does not require any processing for removal of scale, etc., as well as a rolling bearing using the same and a method for manufacturing the rolling-sliding member.Type: GrantFiled: November 12, 2019Date of Patent: March 8, 2022Assignees: JTEKT CORPORATION, DAIDO STEEL CO., LTD.Inventors: Nao Inazaki, Fumihiro Furukawa, Kanji Kawasaki, Hisato Nishisaka, Tomoya Hattori, Kazuhisa Kitamura, Yusuke Kusafuka, Keita Hinoshita, Hiroyuki Takabayashi, Kazuhisa Ishida
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Patent number: 11215230Abstract: A rolling-sliding member that is high in hardness and continues to have a passivation film reliably even after being subjected to a process that does not require any processing for removal of scale etc., as well as a rolling bearing using the same and a method for manufacturing the rolling-sliding member.Type: GrantFiled: February 15, 2017Date of Patent: January 4, 2022Assignees: JTEKT CORPORATION, DAIDO STEEL CO., LTD.Inventors: Nao Inazaki, Fumihiro Furukawa, Kanji Kawasaki, Hisato Nishisaka, Tomoya Hattori, Kazuhisa Kitamura, Yusuke Kusafuka, Keita Hinoshita, Hiroyuki Takabayashi, Kazuhisa Ishida
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Patent number: 11193195Abstract: A component for a hot-dip metal plating bath includes a base material and a thermal spray coating disposed to cover a surface of the base material. The base material includes ferritic stainless steel that contains: C: 0.10% to 0.50% by mass; Si: 0.01% to 4.00% by mass; Mn: 0.10% by mass to 3.00% by mass; Cr: 15.0% to 30.0% by mass; a total of Nb, V, Ti, and Ta: 0.9% by mass to 5.0% by mass; and a balance of Fe and unavoidable impurities. The ferritic stainless steel includes a microstructure that includes a ferrite phase as a main phase and a crystallized carbide, an area fraction of a Nb carbide, a Ti carbide, a V carbide, a Ta carbide, and a composite carbide thereof to the crystallized carbide of 30% or more. The hot-dip metal plating bath contains 50% by mass or more of Al.Type: GrantFiled: May 17, 2018Date of Patent: December 7, 2021Assignees: TOCALO CO., LTD., DAIDO STEEL CO., LTD., DAIDO CASTINGS CO., LTD.Inventors: Junichi Takeuchi, Masaya Nagai, Shinichi Kubo, Masashi Nagaya, Yoshinori Sumi, Yoshihiko Koyanagi, Hiroyuki Takabayashi, Yasuhiro Takenaka
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Publication number: 20210371958Abstract: The present invention relates to an Ni-based alloy which is excellent in terms of wear resistance and high-temperature corrosion resistance and which includes 0.3?C?1.0 mass %, 36.0?Cr?50.0 mass %, and 3.0?Al?7.0 mass %, with the balance being Ni and unavoidable impurities, and relates to an Ni-based alloy product made of the Ni-based alloy according to the present invention, and methods for producing the Ni-based alloy product.Type: ApplicationFiled: May 25, 2021Publication date: December 2, 2021Inventors: Kenji SUGIYAMA, Masashi Nagaya, Yusuke Kusafuka, Yoshihiko Koyanagi, Hiroyuki Takabayashi
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Publication number: 20210238718Abstract: The present invention relates to a precipitation-hardening martensitic stainless steel, containing: 0<C<0.10 mass %, 0<Si?0.20 mass %, 0<Mn?1.00 mass %, 8.0 mass %?Ni?15.0 mass %, 8.0 mass %?Cr?14.0 mass %, 0.4 mass %?Nb?2.50 mass %, and the balance being Fe and inevitable impurities.Type: ApplicationFiled: January 25, 2021Publication date: August 5, 2021Inventors: Nobuyuki TAKAHASHI, Akihiko OKAMOTO, Chihiro FURUSHO, Hiroyuki TAKABAYASHI, Yoshihiko KOYANAGI
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Patent number: 10689723Abstract: The present invention relates to a ferritic stainless steel according to the present invention, containing, in mass %: 0.001%?C?0.020%, 0.05%?Si?0.50%, 0.1%?Mn?1.0%, 15.0%?Cr?25.0%, Mo<0.50%, 0.50%?W?5.00%, and 0.01%?Nb?0.50%, with a balance being Fe and unavoidable impurities, having a content (coarse Laves phase ratio) of coarse Laves phase having a diameter of 0.50 ?m or more being 0.1% or less, and having an average grain size being 30 ?m or more and 200 ?m or less.Type: GrantFiled: June 6, 2018Date of Patent: June 23, 2020Assignee: DAIDO STEEL CO., LTD.Inventors: Yoshihiko Koyanagi, Hiroyuki Takabayashi
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Publication number: 20200150079Abstract: A gas sensor includes a housing including a retaining hole, a sensor element including a solid electrolyte and electrodes, an insulator, which retains the sensor element and is located in the retaining hole, and a sealing member, which is formed of a ceramic powder that fills a gap between the retaining hole and the insulator. In the gas sensor, a crimped portion of the housing compresses the sealing member, and the sealing member seals the gap. The housing is formed of ferritic stainless steel the 0.2% proof stress of which is 80 MPa or more at 650° C.Type: ApplicationFiled: January 13, 2020Publication date: May 14, 2020Inventors: Kouji MORITA, Yoshihiko KOYANAGI, Hiroyuki TAKABAYASHI
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Publication number: 20200087770Abstract: A component for a hot-dip metal plating bath includes a base material and a thermal spray coating disposed to cover a surface of the base material. The base material includes ferritic stainless steel that contains: C: 0.10% to 0.50% by mass; Si: 0.01% to 4.00% by mass; Mn: 0.10% by mass to 3.00% by mass; Cr: 15.0% to 30.0% by mass; a total of Nb, V, Ti, and Ta: 0.9% by mass to 5.0% by mass; and a balance of Fe and unavoidable impurities. The ferritic stainless steel includes a microstructure that includes a ferrite phase as a main phase and a crystallized carbide, an area fraction of a Nb carbide, a Ti carbide, a V carbide, a Ta carbide, and a composite carbide thereof to the crystallized carbide of 30% or more. The component contains 50% by mass or more of Al.Type: ApplicationFiled: May 17, 2018Publication date: March 19, 2020Applicants: TOCALO CO., LTD., DAIDO STEEL CO., LTD., DAIDO CASTINGS CO., LTD.Inventors: Junichi TAKEUCHI, Masaya NAGAI, Shinichi KUBO, Masashi NAGAYA, Yoshinori SUMI, Yoshihiko KOYANAGI, Hiroyuki TAKABAYASHI, Yasuhiro TAKENAKA
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Publication number: 20200080594Abstract: A rolling-sliding member that is high in hardness and continues to have a passivation film reliably even after being subjected to a process that does not require any processing for removal of scale, etc., as well as a rolling bearing using the same and a method for manufacturing the rolling-sliding member.Type: ApplicationFiled: November 12, 2019Publication date: March 12, 2020Applicants: JTEKT CORPORATION, DAIDO STEEL CO., LTD.Inventors: Nao INAZAKI, Fumihiro FURUKAWA, Kanji KAWASAKI, Hisato NISHISAKA, Tomoya HATTORI, Kazuhisa KITAMURA, Yusuke KUSAFUKA, Keita HINOSHITA, Hiroyuki TAKABAYASHI, Kazuhisa ISHIDA
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Patent number: 10385426Abstract: The present invention relates to an Ni-based superalloy having a composition containing, in terms of % by mass, C: from 0.1 to 0.3%, Cr: from 8.0 to 12.0%, Mo: from 1.0 to 5.0%, Co: from 10.0 to 20.0%, Ta: from 0.01 to 1.50%, Ti: from 2.0 to 4.2%, Al: from 5.0 to 8.0%, V: from 0 to 1.5%, B: from 0.005 to 0.030%, and Zr: from 0.05 to 0.15%, with the balance being Ni and unavoidable impurities, and satisfying, in terms of atom %, Ti+Al being from 16.0 to 20.3% and Ti/Al being 0.3 or less.Type: GrantFiled: February 20, 2018Date of Patent: August 20, 2019Assignee: DAIDO STEEL CO., LTD.Inventors: Kyohei Yokota, Yoshinori Sumi, Yoshihiko Koyanagi, Hiroyuki Takabayashi
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Publication number: 20190249718Abstract: A rolling-sliding member that is high in hardness and continues to have a passivation film reliably even after being subjected to a process that does not require any processing for removal of scale etc., as well as a rolling bearing using the same and a method for manufacturing the rolling-sliding member.Type: ApplicationFiled: February 15, 2017Publication date: August 15, 2019Applicants: JTEKT CORPORATION, DAIDO STEEL CO., LTD.Inventors: Nao INAZAKI, Fumihiro FURUKAWA, Kanji KAWASAKI, Hisato NISHISAKA, Tomoya HATTORI, Kazuhisa KITAMURA, Yusuke KUSAFUKA, Keita HINOSHITA, Hiroyuki TAKABAYASHI, Kazuhisa ISHIDA
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Patent number: 10378072Abstract: The present invention relates to a maraging steel containing, in terms of mass %, 0.10?C?0.35, 9.0?Co?20.0, 1.0?(Mo+W/2)?2.0, 1.0?Cr?4.0, a certain amount of Ni, a certain amount of Al, and V+Nb?0.60, with the balance being Fe and inevitable impurities, in which in a case of V+Nb?0.020, the amount of Ni is 6.0?Ni?9.4 and the amount of Al is 1.4?Al?2.0, and in a case of 0.020<V+Nb?0.60, the amount of Ni is 6.0?Ni?20.0 and the amount of Al is 0.50?Al?2.0.Type: GrantFiled: May 13, 2016Date of Patent: August 13, 2019Assignee: DAIDO STEEL CO., LTD.Inventors: Keita Hinoshita, Kenji Sugiyama, Hiroyuki Takabayashi, Shigeki Ueta
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Patent number: 10337079Abstract: The present invention relates to a maraging steel containing, in terms of mass %, 0.20?C?0.35, 9.0?Co?20.0, 1.0?(Mo+W/2)?2.0, 1.0?Cr?4.0, and a certain amount of Ni, with the balance being Fe and inevitable impurities, in which in a case where the contents of V and Nb satisfy V+Nb?0.020 mass %, the amount of Ni is 6.0?Ni?9.4, and in which in a case where the contents of V and Nb satisfy 0.020 mass %<V+Nb?0.60 mass %, the amount of Ni is 6.0?Ni?16.0.Type: GrantFiled: May 13, 2016Date of Patent: July 2, 2019Assignee: DAIDO STEEL CO., LTD.Inventors: Kenji Sugiyama, Keita Hinoshita, Hiroyuki Takabayashi, Shigeki Ueta
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Patent number: 10260119Abstract: The present invention relates to a maraging steel containing, in terms of mass %, 0.20?C?0.35, 9.0?Co?20.0, 1.0?(Mo+W/2)?2.0, 1.0?Cr?4.0, and a certain amount of Ni, with the balance being Fe and inevitable impurities, in which in a case where the contents of V and Nb satisfy V+Nb?0.020 mass %, the amount of Ni is 6.0?Ni?9.4, and in which in a case where the contents of V and Nb satisfy 0.020 mass %<V+Nb?0.60 mass %, the amount of Ni is 6.0?Ni?16.0.Type: GrantFiled: May 13, 2016Date of Patent: April 16, 2019Assignee: DAIDO STEEL CO., LTD.Inventors: Kenji Sugiyama, Keita Hinoshita, Hiroyuki Takabayashi, Shigeki Ueta
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Publication number: 20190017132Abstract: The present invention relates to a ferritic stainless steel according to the present invention, containing, in mass %: 0.001%?C?0.020%, 0.05%?Si?0.50%, 0.1%?Mn?1.0%, 15.0%?Cr?25.0%, Mo<0.50%, 0.50%?W?5.00%, and 0.01%?Nb?0.50%, with a balance being Fe and unavoidable impurities, having a content (coarse Laves phase ratio) of coarse Laves phase having a diameter of 0.50 ?m or more being 0.1% or less, and having an average grain size being 30 ?m or more and 200 ?m or less.Type: ApplicationFiled: June 6, 2018Publication date: January 17, 2019Inventors: Yoshihiko Koyanagi, Hiroyuki Takabayashi
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Publication number: 20180245188Abstract: The present invention relates to an Ni-based superalloy having a composition containing, in terms of % by mass, C: from 0.1 to 0.3%, Cr: from 8.0 to 12.0%, Mo: from 1.0 to 5.0%, Co: from 10.0 to 20.0%, Ta: from 0.01 to 1.50%, Ti: from 2.0 to 4.2%, Al: from 5.0 to 8.0%, V: from 0 to 1.5%, B: from 0.005 to 0.030%, and Zr: from 0.05 to 0.15%, with the balance being Ni and unavoidable impurities, and satisfying, in terms of atom %, Ti+Al being from 16.0 to 20.3% and Ti/Al being 0.3 or less.Type: ApplicationFiled: February 20, 2018Publication date: August 30, 2018Inventors: Kyohei Yokota, Yoshinori Sumi, Yoshihiko Koyanagi, Hiroyuki Takabayashi
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Patent number: 9738954Abstract: The present invention relates to a turbine wheel of an automotive turbocharger, including a Ni-based alloy having a composition which contains, in terms of mass %: C: 0.08 to 0.20%; Mn: 0.25% or less; Si: 0.01 to 0.50%; Cr: 12.0 to 14.0%; Mo: 3.80 to 5.20%; Nb+Ta: 1.80 to 2.80%; Ti: 0.50 to 1.00%; Al: 5.50 to 6.50%; B: 0.005 to 0.015%; Zr: 0.05 to 0.15%; and Fe: 0.01 to 2.5%, with the remainder being Ni and unavoidable impurities, in which the turbine wheel includes a wing part and a shaft part, and a size of ?? phase in each site of from a tip of the wing part to the shaft part is structure-controlled so as to fall within a range of from 0.4 to 0.8 ?m.Type: GrantFiled: February 25, 2015Date of Patent: August 22, 2017Assignee: DAIDO STEEL CO., LTD.Inventors: Yoshinori Sumi, Hiroyuki Takabayashi
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Patent number: 9670787Abstract: The present invention relates to a Ti—Al-based heat-resistant member including a Ti—Al-based alloy which includes: 28.0 mass % to 35.0 mass % of Al; 1.0 mass % to 15.0 mass % of at least one selected from the group consisting of Nb, Mo, W and Ta; 0.1 mass % to 5.0 mass % of at least one selected from the group consisting of Cr, Mn and V; and 0.1 mass % to 1.0 mass % of Si, with the balance being Ti and unavoidable impurities, in which a whole or a part of a surface of the Ti—Al-based heat-resistant member includes a hardened layer as a surface layer, the hardened layer having a higher hardness than an inside of the Ti—Al-based heat-resistant member, and the Ti—Al-based heat-resistant member has a hardness ratio (a hardness of the surface layer/a hardness of the inside) of 1.4 to 2.5.Type: GrantFiled: March 23, 2015Date of Patent: June 6, 2017Assignee: DAIDO STEEL CO., LTD.Inventors: Yoshihiko Koyanagi, Hiroyuki Takabayashi, Yoshinori Sumi