Patents by Inventor Takaaki Nishikawa

Takaaki Nishikawa 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: 11965315
    Abstract: The invention of the present application intends to provide a work machine that can ensure high operability by preventing abrupt actuation of an actuator and a shock to a machine body by use of a bleed-off function at the time of starting of the actuator and that can improve the energy-saving performance by reducing a bleed-off flow rate after the starting of the actuator. For this purpose, a controller opens a bleed-off valve at a timing at which an operation device is being operated and before a flow rate of a hydraulic pump starts increasing, and closes the bleed-off valve at a timing at which the operation device is being operated and after the flow rate of the hydraulic pump has started increasing.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: April 23, 2024
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kento Kumagai, Shinya Imura, Yasutaka Tsuruga, Takaaki Chiba, Hiroaki Amano, Shinji Nishikawa, Akihiro Narazaki, Genroku Sugiyama, Shinjiro Yamamoto
  • Patent number: 11965817
    Abstract: Disclosed is a cell classification method, to be executed by an analyzer, for classifying cells contained in a specimen, including: preparing a first measurement sample by treating a specimen under a first preparation condition; obtaining a first signal from the prepared first measurement sample; classifying, by using the first signal, cells contained in the first measurement sample; preparing a second measurement sample by treating the specimen under a second preparation condition different from the first preparation condition; obtaining a second signal from the prepared second measurement sample; classifying, by using the second signal, cells contained in the second measurement sample; and comparing a result of the cell classification performed by using the first signal and a result of the cell classification performed by using the second signal, with each other, and outputting an analysis result including a number of cells on the basis of a result of the comparison.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: April 23, 2024
    Assignee: SYSMEX CORPORATION
    Inventors: Yuki Shida, Yukiko Nakamura, Ken Nishikawa, Kota Misawa, Hikaru Onoue, Takaaki Nagai, Masaki Abe, Takahito Mihara, Masaharu Shibata, Konobu Kimura
  • Patent number: 11958182
    Abstract: A mobile body system for managing a mobile body that moves within a predetermined area includes a mobile body associated with a guest group including one or more guests, and a managing apparatus configured to manage an outer appearance of the mobile body. The managing apparatus includes an activity collector configured to collect activity information indicative of an activity of the guest within the predetermined area, and an outer appearance manager configured to change the outer appearance of the mobile body viewed by the guest based on the activity information collected by the activity collector.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: April 16, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mutsumi Kawashima, Tomoaki Miyazawa, Masato Noritake, Nobuhiro Nishikawa, Masato Kurima, Tokuyuki Nishikawa, Reiko Tomita, Takaaki Kato, Hiroyuki Tomita, Daisaku Kato
  • Patent number: 9809671
    Abstract: The present invention relates to a method for producing a hydrogenated block copolymer, including the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a tetra- or more functional silane coupling agent; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; (c) isolating the resultant hydrogenated block copolymer; and (d) deactivating a functional group in the silane coupling agent and/or an unreacted functional group present in a coupling agent residue in the block copolymer or the hydrogenated block copolymer prior to the step (c), in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer recovered in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: November 7, 2017
    Assignee: KURARAY CO., LTD.
    Inventors: Takaaki Nishikawa, Yosuke Jogo, Nobuhiro Moriguchi, Mizuho Maeda
  • Publication number: 20160115269
    Abstract: The present invention relates to a method for producing a hydrogenated block copolymer, including the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a tetra- or more functional silane coupling agent; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; (c) isolating the resultant hydrogenated block copolymer; and (d) deactivating a functional group in the silane coupling agent and/or an unreacted functional group present in a coupling agent residue in the block copolymer or the hydrogenated block copolymer prior to the step (c), in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer recovered in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer.
    Type: Application
    Filed: December 29, 2015
    Publication date: April 28, 2016
    Applicant: KURARAY CO., LTD
    Inventors: Takaaki NISHIKAWA, Yosuke JOGO, Nobuhiro MORIGUCHI, Mizuho MAEDA
  • Patent number: 9296853
    Abstract: The present invention relates to a method for producing a hydrogenated block copolymer, including the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a tetra- or more functional silane coupling agent; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; (c) isolating the resultant hydrogenated block copolymer; and (d) deactivating a functional group in the silane coupling agent and/or an unreacted functional group present in a coupling agent residue in the block copolymer or the hydrogenated block copolymer prior to the step (c), in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer recovered in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: March 29, 2016
    Assignee: KURARAY CO., LTD.
    Inventors: Takaaki Nishikawa, Yosuke Jogo, Nobuhiro Moriguchi, Mizuho Maeda
  • Patent number: 9102766
    Abstract: The present invention relates to a method for producing a hydrogenated block copolymer, comprises the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a bis-silane coupling agent having a specific structure; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; and (c) isolating the resultant hydrogenated block copolymer, in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer isolated in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: August 11, 2015
    Assignee: KURARAY CO., LTD.
    Inventors: Takaaki Nishikawa, Yosuke Jogo, Nobuhiro Moriguchi, Mizuho Maeda
  • Patent number: 8785546
    Abstract: To provide a thermoplastic elastomer composition excellent in fluidity, compression set property, and flexibility, and a hydrogenated block copolymer that provides the composition. The hydrogenated block copolymer is obtained by hydrogenating a block copolymer which is obtained by reacting a living polymer represented by the following formula (1): B1-A-B2—X??(1) wherein B1 and B2 each represent a polymer block mainly including a structural unit derived from a conjugated diene compound, A represents a polymer block mainly including a structural unit derived from a vinyl aromatic compound, and X represents an active terminal end of a living anion polymer, with a coupling agent, wherein the ratio of the mass of the polymer block B1 to the total mass of B1 and B2 before hydrogenation is from 0.10 to 0.45; and the content of the structural unit derived from the vinyl aromatic compound is from 25 to 50 mass % based on the mass of the hydrogenated block copolymer.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: July 22, 2014
    Assignee: Kuraray Co., Ltd.
    Inventors: Yosuke Jogo, Takaaki Nishikawa, Nobuhiro Moriguchi
  • Publication number: 20120157615
    Abstract: The present invention relates to a method for producing a hydrogenated block copolymer, comprises the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a bis-silane coupling agent having a specific structure; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; and (c) isolating the resultant hydrogenated block copolymer, in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer isolated in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer.
    Type: Application
    Filed: June 3, 2010
    Publication date: June 21, 2012
    Applicant: KURARAY CO., LTD.
    Inventors: Takaaki Nishikawa, Yosuke Jogo, Nobuhiro Moriguchi, Mizuho Maeda
  • Publication number: 20120136114
    Abstract: The present invention relates to a method for producing a hydrogenated block copolymer, including the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a tetra- or more functional silane coupling agent; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; (c) isolating the resultant hydrogenated block copolymer; and (d) deactivating a functional group in the silane coupling agent and/or an unreacted functional group present in a coupling agent residue in the block copolymer or the hydrogenated block copolymer prior to the step (c), in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer recovered in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer.
    Type: Application
    Filed: June 3, 2010
    Publication date: May 31, 2012
    Applicant: Kuraray Co., Ltd.
    Inventors: Takaaki Nishikawa, Yosuke Jogo, Nobuhiro Moriguchi, Mizuho Maeda
  • Publication number: 20110245405
    Abstract: To provide a thermoplastic elastomer composition excellent in fluidity, compression set property, and flexibility, and a hydrogenated block copolymer that provides the composition. The hydrogenated block copolymer is obtained by hydrogenating a block copolymer which is obtained by reacting a living polymer represented by the following formula (1): B1-A-B2-X??(1) wherein B1 and B2 each represent a polymer block mainly including a structural unit derived from a conjugated diene compound, A represents a polymer block mainly including a structural unit derived from a vinyl aromatic compound, and X represents an active terminal end of a living anion polymer, with a coupling agent, wherein the ratio of the mass of the polymer block B1 to the total mass of B1 and B2 before hydrogenation is from 0.10 to 0.45; and the content of the structural unit derived from the vinyl aromatic compound is from 25 to 50 mass % based on the mass of the hydrogenated block copolymer.
    Type: Application
    Filed: August 28, 2009
    Publication date: October 6, 2011
    Applicant: Kuraray Co., Ltd.
    Inventors: Yosuke Jogo, Takaaki Nishikawa, Nobuhiro Moriguchi