Patents by Inventor Takuya Okamura

Takuya Okamura 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).

  • Patent number: 12188110
    Abstract: The steel material according to the present disclosure has a chemical composition consisting of, in mass %, C: more than 0.20 to 0.35%, Si: 0.05 to 1.00%, Mn: 0.02 to 1.00%, P: 0.025% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr: 0.40 to 1.50%, Mo: 0.30 to 1.50%, Ti: 0.002 to 0.050%, B: 0.0001 to 0.0050%, N: 0.0100% or less and O: 0.0100% or less, with the balance being Fe and impurities, and satisfies Formula (1) and Formula (2) described in the description. The yield strength is 862 MPa or more. A numerical proportion of precipitates having an equivalent circular diameter within a range of 20 to 300 nm among precipitates having an equivalent circular diameter of 20 nm or more in the steel material is 0.85 or more.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: January 7, 2025
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Shinji Yoshida, Yuji Arai, Kuniaki Itoh, Takuya Okamura
  • Publication number: 20240059144
    Abstract: A travel control device for controlling traveling of a straddle-type vehicle includes a control device, a vehicle speed detector configured to detect a traveling speed of the vehicle, and a vibration detector configured to detect a detection target vibration which is a vibration in a yaw direction or roll direction of the vehicle and has a frequency within a reference frequency range. The control device includes a deceleration device configured to perform a deceleration control to decelerate the traveling speed if the traveling speed exceeds a control start reference speed and an amplitude of the detection target vibration exceeds a control start reference amplitude and a deceleration stop device configured to stop the deceleration control if the traveling speed becomes equal to or less than a target limited speed after the deceleration control is started by the deceleration device.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 22, 2024
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Hiromi DEGUCHI, Shoji YANAGIDA, Koji KOBAYASHI, Takuya OKAMURA, Hirotoshi MOCHIYAMA
  • Publication number: 20220325393
    Abstract: The steel material according to the present disclosure has a chemical composition consisting of, in mass %, C: more than 0.20 to 0.35%, Si: 0.05 to 1.00%, Mn: 0.02 to 1.00%, P: 0.025% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr: 0.40 to 1.50%, Mo: 0.30 to 1.50%, Ti: 0.002 to 0.050%, B: 0.0001 to 0.0050%, N: 0.0100% or less and O: 0.0100% or less, with the balance being Fe and impurities, and satisfies Formula (1) and Formula (2) described in the description. The yield strength is 862 MPa or more. A numerical proportion of precipitates having an equivalent circular diameter within a range of 20 to 300 nm among precipitates having an equivalent circular diameter of 20 nm or more in the steel material is 0.85 or more.
    Type: Application
    Filed: August 13, 2020
    Publication date: October 13, 2022
    Inventors: Shinji YOSHIDA, Yuji ARAI, Kuniaki ITOH, Takuya OKAMURA
  • Patent number: 10556849
    Abstract: A method for producing methanol allows the temperature of the catalyst layer to fall within an appropriate temperature range, reduces energy used, and achieves higher carbon yield. In a synthesis loop including at least two synthesis steps and two separation steps, a first mixed gas is obtained by mixing the final unreacted gas with a fraction of the make-up gas, methanol is synthesized from the first mixed gas after preheating, a first unreacted gas is separated from the obtained first reaction mixture, a final mixed gas is obtained by finally mixing the unreacted gas and a fraction of the make-up gas, the final mixed gas after preheating is further increased in pressure and then methanol is synthesized, a final unreacted gas is separated from the obtained final reaction mixture, and the reaction temperature of the catalyst layer is controlled by the indirect heat exchange with pressurized boiling water.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: February 11, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yasuaki Kambe, Kohei Uchida, Takuya Okamura, Daigo Hirakawa
  • Publication number: 20190152885
    Abstract: A method for producing methanol allows the temperature of the catalyst layer to fall within an appropriate temperature range, reduces energy used, and achieves higher carbon yield. In a synthesis loop including at least two synthesis steps and two separation steps, a first mixed gas is obtained by mixing the final unreacted gas with a fraction of the make-up gas, methanol is synthesized from the first mixed gas after preheating, a first unreacted gas is separated from the obtained first reaction mixture, a final mixed gas is obtained by finally mixing the unreacted gas and a fraction of the make-up gas, the final mixed gas after preheating is further increased in pressure and then methanol is synthesized, a final unreacted gas is separated from the obtained final reaction mixture, and the reaction temperature of the catalyst layer is controlled by the indirect heat exchange with pressurized boiling water.
    Type: Application
    Filed: April 4, 2017
    Publication date: May 23, 2019
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yasuaki KAMBE, Kohei UCHIDA, Takuya OKAMURA, Daigo HIRAKAWA
  • Patent number: 9834015
    Abstract: A printing machine includes a printing unit which performs printing while transferring a sheet at a printing transfer speed, a circulation transfer unit which receives the sheet after simplex printing and transfers the sheet by reversing the sheet upside down, during duplex printing; and a paper refeed unit which refeeds, to the printing unit, the sheet transferred by the circulation transfer unit after simplex printing, wherein the circulation transfer unit includes a reversing unit which receives the sheet at the printing transfer speed, reverses the sheet upside down by switching back the sheet and accelerates the sheet up to a circulation transfer speed which is higher than the printing transfer speed when sheet transfer is restarted after temporal stop in the switching back, and a horizontal transfer unit which transfers the sheet switched back by the reversing unit, at the circulation transfer speed.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: December 5, 2017
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Masaaki Shinohara, Tomohiko Shimoda, Tetsunori Saito, Kazuyuki Aoki, Takuya Okamura
  • Patent number: 9604905
    Abstract: A method for isomerizing a bis(aminomethyl)cyclohexane, including an isomerization step of isomerizing the bis(aminomethyl)cyclohexane in the presence of an imine compound represented by the following general formula (1) and at least one compound selected from the group consisting of an alkali metal, an alkali metal-containing compound, an alkaline earth metal and an alkaline earth metal-containing compound: wherein R1 and R2 each independently represent a hydrogen atom or a monovalent group selected from the group consisting of a substituted or unsubstituted hydrocarbon group, a substituted or unsubstituted alkoxy group, and an acyl group (R1 and R2 may mutually bind to form a ring); R3 represents a hydrogen atom or an n-valent group selected from the group consisting of substituted or unsubstituted hydrocarbon groups; and n represents an integer of 1 to 10.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: March 28, 2017
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoshiaki Yamamoto, Yuko Sameshima, Takuya Okamura
  • Publication number: 20160288545
    Abstract: A printing machine includes a printing unit which performs printing while transferring a sheet at a printing transfer speed, a circulation transfer unit which receives the sheet after simplex printing and transfers the sheet by reversing the sheet upside down, during duplex printing; and a paper refeed unit which refeeds, to the printing unit, the sheet transferred by the circulation transfer unit after simplex printing, wherein the circulation transfer unit includes a reversing unit which receives the sheet at the printing transfer speed, reverses the sheet upside down by switching back the sheet and accelerates the sheet up to a circulation transfer speed which is higher than the printing transfer speed when sheet transfer is restarted after temporal stop in the switching back, and a horizontal transfer unit which transfers the sheet switched back by the reversing unit, at the circulation transfer speed.
    Type: Application
    Filed: March 11, 2016
    Publication date: October 6, 2016
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Masaaki SHINOHARA, Tomohiko SHIMODA, Tetsunori SAITO, Kazuyuki AOKI, Takuya OKAMURA
  • Publication number: 20160207877
    Abstract: A method for isomerizing a bis(aminomethyl)cyclohexane, including an isomerization step of isomerizing the bis(aminomethyl)cyclohexane in the presence of an imine compound represented by the following general formula (1) and at least one compound selected from the group consisting of an alkali metal, an alkali metal-containing compound, an alkaline earth metal and an alkaline earth metal-containing compound: wherein R1 and R2 each independently represent a hydrogen atom or a monovalent group selected from the group consisting of a substituted or unsubstituted hydrocarbon group, a substituted or unsubstituted alkoxy group, and an acyl group (R1 and R2 may mutually bind to form a ring); R3 represents a hydrogen atom or an n-valent group selected from the group consisting of substituted or unsubstituted hydrocarbon groups; and n represents an integer of 1 to 10.
    Type: Application
    Filed: September 17, 2014
    Publication date: July 21, 2016
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoshiaki YAMAMOTO, Yuko SAMESHIMA, Takuya OKAMURA
  • Patent number: 8682238
    Abstract: A grounding structure includes a rotation shaft and a grounding member. The rotation shaft has a non-circular cross section, and rotates. The grounding member is attached to the rotation shaft to electrically communicate with the rotation shaft, and rotates together with the rotation shaft. The grounding member includes a first grounding portion, a grounding retainer and a second grounding portion. An outer shape of the first grounding portion is a circular shape. The grounding retainer is provided on a side of the first grounding portion in a shaft direction of the rotation shaft, and has an outside diameter being larger than an outside diameter of the first grounding portion. The second grounding portion is elastically held in contact with the first grounding portion.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: March 25, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Takuya Okamura
  • Patent number: 8328189
    Abstract: A sheet conveying device with a sheet conveyance path through which a sheet is conveyed include: a sheet guide that has a first end rotatably supported to move a second end to be close to or away from the sheet conveyance path; and a sheet detecting section that has a first end protruding beyond the sheet guide and a second end rotatably supported so that the first end is pushed by the sheet and rotated. A rotation shaft of the sheet detecting section is disposed farther from the sheet conveyance path than a rotation shaft of the sheet guide, and the sheet guide is provided with a moving portion for moving the first end of the sheet detecting section to an inside of a guide face of the sheet guide.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: December 11, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Takuya Okamura
  • Publication number: 20110236098
    Abstract: A grounding structure includes a rotation shaft and a grounding member. The rotation shaft has a non-circular cross section, and rotates. The grounding member is attached to the rotation shaft to electrically communicate with the rotation shaft, and rotates together with the rotation shaft. The grounding member includes a first grounding portion, a grounding retainer and a second grounding portion. An outer shape of the first grounding portion is a circular shape. The grounding retainer is provided on a side of the first grounding portion in a shaft direction of the rotation shaft, and has an outside diameter being larger than an outside diameter of the first grounding portion. The second grounding portion is elastically held in contact with the first grounding portion.
    Type: Application
    Filed: September 16, 2010
    Publication date: September 29, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Takuya OKAMURA
  • Publication number: 20110233856
    Abstract: A sheet conveying device with a sheet conveyance path through which a sheet is conveyed include: a sheet guide that has a first end rotatably supported to move a second end to be close to or away from the sheet conveyance path; and a sheet detecting section that has a first end protruding beyond the sheet guide and a second end rotatably supported so that the first end is pushed by the sheet and rotated. A rotation shaft of the sheet detecting section is disposed farther from the sheet conveyance path than a rotation shaft of the sheet guide, and the sheet guide is provided with a moving portion for moving the first end of the sheet detecting section to an inside of a guide face of the sheet guide.
    Type: Application
    Filed: August 23, 2010
    Publication date: September 29, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Takuya OKAMURA