Patents by Inventor Hirofumi Iguchi
Hirofumi Iguchi 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: 12071572Abstract: [Object] The present invention provides a curable resin composition useful for imparting high durability and adhesion to a substrate such as a metal. [Solution] A curable resin composition is prepared by combining a polyamide-based resin (A) having an amino group, a blocked polyisocyanate (B), and an epoxy compound (C). The polyamide-based resin (A) contains a polyamide-based resin (A1) having a melting point of 170° C. or higher and a polyamide-based resin (A2) having a melting point of 150° C. or lower. The mass ratio of the polyamide-based resin (A1) and the polyamide-based resin (A2) is, in the form of the former/the latter, from 65/35 to 35/65.Type: GrantFiled: December 18, 2020Date of Patent: August 27, 2024Assignee: DAICEL-EVONIK LTD.Inventors: Mitsuteru Mutsuda, Hirofumi Iguchi, Toshiaki Nakamura
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Patent number: 12012534Abstract: [Object] The present invention provides a curable resin composition useful for imparting high durability and adhesion to a substrate such as a metal. [Solution] A curable resin composition is prepared by combining a polyamide-based resin (A) having an amino group, a blocked polyisocyanate (B), and an epoxy compound (C). The polyamide-based resin (A) contains a polyamide-based resin (A1) having a melting point of 170° C. or higher and a polyamide-based resin (A2) having a melting point of 150° C. or lower. The mass ratio of the polyamide-based resin (A1) and the polyamide-based resin (A2) is, in the form of the former/the latter, from 65/35 to 35/65.Type: GrantFiled: December 18, 2020Date of Patent: June 18, 2024Assignee: DAICEL-EVONIK LTD.Inventors: Mitsuteru Mutsuda, Hirofumi Iguchi, Toshiaki Nakamura
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Patent number: 12012532Abstract: Provided are a curable resin composition having high durability and adherence to a base material such as a metal, a molded composite member formed by coating the base material with the curable resin composition and performing resin molding, and a production method for the same. The curable resin composition contains a polyamide-based resin, a blocked polyisocyanate, and an epoxy compound, and the polyamide-based resin has an amino group concentration from 20 to 300 mmol/kg, and has a water absorption of 1 mass % or less determined by a water absorption test specified by ASTM D570. The polyamide-based resin has a C8-18 alkylene chain and has a melting point from 160 to 250° C. Per 1 mol of amino groups of the polyamide-based resin, a proportion of isocyanate groups of the blocked polyisocyanate is from 1.5 to 5 mol, and a proportion of epoxy groups of the epoxy compound is from 0.1 to 0.8 mol.Type: GrantFiled: August 7, 2019Date of Patent: June 18, 2024Assignees: DAICEL-EVONIK LTD., HONDA MOTOR CO., LTD.Inventors: Mitsuteru Mutsuda, Hirofumi Iguchi, Toshiaki Nakamura, Nao Sato, Mutsuo Tezuka, Yasufumi Nakajima
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Publication number: 20210222031Abstract: [Object] The present invention provides a curable resin composition useful for imparting high durability and adhesion to a substrate such as a metal. [Solution] A curable resin composition is prepared by combining a polyamide-based resin (A) having an amino group, a blocked polyisocyanate (B), and an epoxy compound (C). The polyamide-based resin (A) contains a polyamide-based resin (A1) having a melting point of 170° C. or higher and a polyamide-based resin (A2) having a melting point of 150° C. or lower. The mass ratio of the polyamide-based resin (A1) and the polyamide-based resin (A2) is, in the form of the former/the latter, from 65/35 to 35/65.Type: ApplicationFiled: December 18, 2020Publication date: July 22, 2021Applicant: Daicel-Evonik Ltd.Inventors: Mitsuteru MUTSUDA, Hirofumi IGUCHI, Toshiaki NAKAMURA
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Publication number: 20210198541Abstract: Provided are a curable resin composition having high durability and adherence to a base material such as a metal, a molded composite member formed by coating the base material with the curable resin composition and performing resin molding, and a production method for the same. The curable resin composition contains a polyamide-based resin, a blocked polyisocyanate, and an epoxy compound, and the polyamide-based resin has an amino group concentration from 20 to 300 mmol/kg, and has a water absorption of 1 mass % or less determined by a water absorption test specified by ASTM D570. The polyamide-based resin has a C8-18 alkylene chain and has a melting point from 160 to 250° C. Per 1 mol of amino groups of the polyamide-based resin, a proportion of isocyanate groups of the blocked polyisocyanate is from 1.5 to 5 mol, and a proportion of epoxy groups of the epoxy compound is from 0.1 to 0.8 mol.Type: ApplicationFiled: August 7, 2019Publication date: July 1, 2021Applicants: DAICEL-EVONIK LTD., HONDA MOTOR CO.,LTD.Inventors: Mitsuteru MUTSUDA, Hirofumi IGUCHI, Toshiaki NAKAMURA, Nao SATO, Mutsuo TEZUKA, Yasufumi NAKAJIMA
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Patent number: 10519338Abstract: A resin powder containing an aromatic polyetherketone resin (e.g., a polyetheretherketone) is deformed into a plate-like form, and the resulting powder is used as a resin powder for a coating material. The plate-like resin powder may have an average thickness of, for example, not more than 2 ?m. The coating material may contain a dispersing agent or may be dispersed in a dispersion medium, such as water. The coating material may particularly be used as a coating material for covering a metal substrate. The plate-like resin powder, which comprise an aromatic polyetherketone resin, allows formation of a coating layer which has a high adhesion to a substrate and in which the generation of pinholes is efficiently prevented or reduced.Type: GrantFiled: June 6, 2014Date of Patent: December 31, 2019Assignee: DAICEL-EVONIK LTD.Inventors: Mitsuteru Mutsuda, Hirofumi Iguchi, Ryo Nakahama, Kimihiko Oya
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Patent number: 10033201Abstract: A battery controller 10 outputs a voltage sampling and holding command signal to an integrated circuit CCn located at an upstream end of cascade connection of integrated circuits CC1-CCn such that integrated circuits CC1-CCn sample and hold output voltages of unit cells 1 grouped into battery modules M1-Mn. The battery controller 10, after transmission of the voltage sampling and holding command signal, outputs a transmission command signal to the integrated circuit CCn at the upstream end of the cascade circuit to transmit output voltages of the unit cells 1 held in the integrated circuits CC1-CCn to the battery controller 10. As a result, a time lag in the detection timings of output voltages of the unit cells 1 of the battery modules M1-Mn can be decreased.Type: GrantFiled: May 19, 2010Date of Patent: July 24, 2018Assignee: NISSAN MOTOR CO., LTD.Inventors: Kazumi Kaneko, Hirofumi Iguchi, Yuki Takanezawa
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Publication number: 20160096946Abstract: A resin powder containing an ultraviolet scattering agent (such as a titanium oxide particle or a zinc oxide particle) is deformed into a plate-like form. The ultraviolet scattering agent may include, for example, a titanium oxide particle or zinc oxide particle having an average particle diameter of not more than 100 nm. A resin contained in the resin powder may particularly be a thermoplastic resin (e.g., a polyamide resin). The plate-like resin powder may be a powder obtainable by deforming resin particles, each containing the ultraviolet scattering agent, into a plate-like form. The resulting resin powder has an excellent ultraviolet scattering function.Type: ApplicationFiled: April 24, 2014Publication date: April 7, 2016Applicant: DAICEL-EVONIK LTD.Inventors: Mitsuteru MUTSUDA, Hirofumi IGUCHI
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Publication number: 20160083616Abstract: A resin powder containing an aromatic polyetherketone resin (e.g., a polyetheretherketone) is deformed into a plate-like form, and the resulting powder is used as a resin powder for a coating material. The plate-like resin powder may have an average thickness of, for example, not more than 2 ?m. The coating material may contain a dispersing agent or may be dispersed in a dispersion medium, such as water. The coating material may particularly be used as a coating material for covering a metal substrate. The plate-like resin powder, which comprise an aromatic polyetherketone resin, allows formation of a coating layer which has a high adhesion to a substrate and in which the generation of pinholes is efficiently prevented or reduced.Type: ApplicationFiled: June 6, 2014Publication date: March 24, 2016Applicant: DAICEL-EVONIK LTD.Inventors: Mitsuteru MUTSUDA, Hirofumi IGUCHI, Ryo NAKAHAMA, Kimihiko OYA
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Publication number: 20120046893Abstract: A battery controller 10 outputs a voltage sampling and holding command signal to an integrated circuit CCn located at an upstream end of cascade connection of integrated circuits CC1-CCn such that integrated circuits CC1-CCn sample and hold output voltages of unit cells 1 grouped into battery modules M1-Mn. The battery controller 10, after confirming that the voltage sampling and holding command signal has been transmitted to an integrated circuit CC1 located at a downstream end of the cascade connection, outputs a transmission command signal to the integrated circuit CCn at the upstream end of the cascade circuit to transmit output voltages of the unit cells 1 held in the integrated circuits CC1-CCn to the battery controller 10. As a result, a time lag in the detection timings of output voltages of the unit cells 1 of the battery modules M1-Mn can be decreased.Type: ApplicationFiled: May 19, 2010Publication date: February 23, 2012Inventors: Kazumi Kaneko, Hirofumi Iguchi, Yuki Takanezawa