Patents by Inventor Tatsuya Chiba

Tatsuya Chiba 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: 10589528
    Abstract: A liquid discharge head including: a flow path formation part in which pressure generation chambers are arranged; and a pressure generation unit configured to apply pressure to the pressure generation chambers, wherein the pressure generation unit is formed by joining a vibration unit to the flow path formation part with a resin layer, and wherein the resin layer includes a curable resin composition including (A) an epoxy resin, (B) a polythiol compound, (C) at least one adhesiveness-imparting agent selected from the group consisting of a compound represented by General Formula (1), a titanium compound represented by General Formula (2-1), and a titanium compound represented by General Formula (2-2), and (D) a curing accelerator.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: March 17, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Sameshima, Hisashi Habashi, Ryota Chiba
  • Publication number: 20190300310
    Abstract: A conveying device includes a sensor to read a sheet to be conveyed, a first conveyor arranged on an upstream side from the sensor in a sheet conveying direction of the sheet, a second conveyor arranged on a downstream side from the sensor in the sheet conveying direction, and correcting circuitry to correct a distance of the sheet having an error detected when the sensor reads the sheet conveyed by the first conveyor and the second conveyor, to an actual distance. The correcting circuitry uses at least a first correction value correcting a distance read by the sensor when the first conveyor conveys the sheet and a second correction value correcting a distance read by the sensor when the second conveyor conveys the sheet.
    Type: Application
    Filed: March 18, 2019
    Publication date: October 3, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Tatsuya Ishii, Takehiro Chiba, Yuji Karikusa
  • Publication number: 20190283427
    Abstract: A liquid discharge head including: a flow path formation part in which pressure generation chambers are arranged; and a pressure generation unit configured to apply pressure to the pressure generation chambers, wherein the pressure generation unit is formed by joining a vibration unit to the flow path formation part with a resin layer, and wherein the resin layer includes a curable resin composition including (A) an epoxy resin, (B) a polythiol compound, (C) at least one adhesiveness-imparting agent selected from the group consisting of a compound represented by General Formula (1), a titanium compound represented by General Formula (2-1), and a titanium compound represented by General Formula (2-2), and (D) a curing accelerator.
    Type: Application
    Filed: February 28, 2019
    Publication date: September 19, 2019
    Inventors: Tatsuya SAMESHIMA, Hisashi HABASHI, Ryota CHIBA
  • Patent number: 9862785
    Abstract: A method for producing an olefin polymer, in which an olefin compound is polymerized in the presence of a Lewis acid catalyst at a temperature of 0° C. or lower to obtain an olefin polymer, the method comprising a step of feeding a raw material liquid including the olefin compound to a reactor provided with a cooling unit, a step of polymerizing the olefin compound in the reactor to obtain a reaction liquid including the olefin polymer, a deactivation step of adding a deactivator to the reaction liquid taken out from the reactor to deactivate the Lewis acid catalyst, and a step of supplying the reaction liquid after the deactivation step to a cold recovery unit to recover cold from the reaction liquid, wherein the amount of the Lewis acid catalyst is 0.5×10?3 to 1.0×10?1 mol % based on the total amount of the olefin compound.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: January 9, 2018
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Tatsuya Chiba, Koichi Sato, Teruhisa Kuroki, Ryuichiro Furusawa, Takeshi Omata
  • Publication number: 20170107311
    Abstract: A method for producing an olefin polymer, in which an olefin compound is polymerized in the presence of a Lewis acid catalyst at a temperature of 0° C. or lower to obtain an olefin polymer, the method comprising a step of feeding a raw material liquid including the olefin compound to a reactor provided with a cooling unit, a step of polymerizing the olefin compound in the reactor to obtain a reaction liquid including the olefin polymer, a deactivation step of adding a deactivator to the reaction liquid taken out from the reactor to deactivate the Lewis acid catalyst, and a step of supplying the reaction liquid after the deactivation step to a cold recovery unit to recover cold from the reaction liquid, wherein the amount of the Lewis acid catalyst is 0.5×10?3 to 1.0×10?1 mol % based on the total amount of the olefin compound.
    Type: Application
    Filed: February 20, 2015
    Publication date: April 20, 2017
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Tatsuya CHIBA, Koichi SATO, Teruhisa KUROKI, Ryuichiro FURUSAWA, Takeshi OMATA
  • Patent number: 9459591
    Abstract: A multipoint simultaneous measurement method and a multipoint simultaneous measurement system in an electric power station and an internal clock used therefor, capable of performing measurement at the correct time even at a place in the electric power station where GPS radio waves cannot be received, and of securing simultaneity with high accuracy and with ease without connecting a plurality of measurement points via a cable and the like.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: October 4, 2016
    Assignees: CVENGINEERING CORPORATION, TOHOKU ELECTRIC POWER CO., INC.
    Inventors: Tatsuya Chiba, Masaki Sato, Yoichi Yanagisawa
  • Publication number: 20140194576
    Abstract: A rubber composition containing a rubber component having an olefinic double bond, and an isobutylene polymer having a structural unit represented by the following formula (1) and a structural unit represented by the following formula (2), wherein the content of a low molecular weight substance whose molecular weight is 1000 or less in the isobutylene polymer is 5% by mass or less based on the total amount of the isobutylene polymer. [wherein X represents a divalent group, Y represents a substituted or unsubstituted alicyclic group having an unsaturated bond, and n represents 0 or 1.
    Type: Application
    Filed: June 29, 2012
    Publication date: July 10, 2014
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Zhengzhe Jin, Tsutomu Takashima, Tsuyoshi Yamaguchi, Tatsuya Chiba
  • Publication number: 20130311135
    Abstract: A multipoint simultaneous measurement method and a multipoint simultaneous measurement system in an electric power station and an internal clock used therefor, capable of performing measurement at the correct time even at a place in the electric power station where GPS radio waves cannot be received, and of securing simultaneity with high accuracy and with ease without connecting a plurality of measurement points via a cable and the like.
    Type: Application
    Filed: May 28, 2012
    Publication date: November 21, 2013
    Applicants: CVEngineering Corporation, TOHOKU ELECTRIC POWER CO., INC.
    Inventors: Tatsuya Chiba, Masaki Sato, Yoichi Yanagisawa
  • Patent number: 7648774
    Abstract: An electromagnetic noise suppressor including a ferrite film is formed by regularly arranging constituents such as magnetized grains or one analogous to that. In the ferrite film, the constituents have at least one of the uniaxial anisotropy and the multiaxial anisotropy. The ferrite film has the magnetic anisotropy or the magnetic isotropy. The ferrite film is formed by a plating method in the presence of a magnetic field.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: January 19, 2010
    Assignee: NEC Tokin Corporation
    Inventors: Koichi Kondo, Okikuni Takahata, Tatsuya Chiba, Hiroshi Ono, Shigeyoshi Yoshida, Masanori Abe, Masahiro Yamaguchi
  • Publication number: 20090061256
    Abstract: An electromagnetic noise suppressor including a ferrite film is formed by regularly arranging constituents such as magnetized grains or one analogous to that. In the ferrite film, the constituents have at least one of the uniaxial anisotropy and the multiaxial anisotropy. The ferrite film has the magnetic anisotropy or the magnetic isotropy. The ferrite film is formed by a plating method in the presence of a magnetic field.
    Type: Application
    Filed: September 16, 2008
    Publication date: March 5, 2009
    Applicant: NEC TOKIN Corporation
    Inventors: Koichi Kondo, Okikuni Takahata, Tatsuya Chiba, Hiroshi Ono, Shigeyoshi Yoshida, Masanori Abe, Masahiro Yamaguchi
  • Patent number: 7438946
    Abstract: A ferrite film is formed by regularly arranging constituents such as magnetized grains or one analogous to that. In the ferrite film, the constituents have at least one of the uniaxial anisotropy and the multiaxial anisotropy. The ferrite film has the magnetic anisotropy or the magnetic isotropy. The ferrite film is formed by the use of the plating method in the presence of a magnetic field. Furthermore, an electromagnetic noise suppressor includes the ferrite film.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: October 21, 2008
    Assignee: NEC TOKIN Corporation
    Inventors: Koichi Kondo, Okikuni Takahata, Tatsuya Chiba, Hiroshi Ono, Shigeyoshi Yoshida, Masanori Abe, Masahiro Yamaguchi
  • Publication number: 20070077369
    Abstract: A ferrite film is formed by regularly arranging constituents such as magnetized grains or one analogous to that. In the ferrite film, the constituents have at least one of the uniaxial anisotropy and the multiaxial anisotropy. The ferrite film has the magnetic anisotropy or the magnetic isotropy. The ferrite film is formed by the use of the plating method in the presence of a magnetic field. Furthermore, an electromagnetic noise suppressor includes the ferrite film.
    Type: Application
    Filed: December 6, 2006
    Publication date: April 5, 2007
    Applicant: NEC TOKIN Corporation
    Inventors: Koichi Kondo, Okikuni Takahata, Tatsuya Chiba, Hiroshi Ono, Shigeyoshi Yoshida, Masanori Abe, Masahiro Yamaguchi
  • Patent number: 7160636
    Abstract: A ferrite film is formed by regularly arranging constituents such as magnetized grains or one analogous to that. In the ferrite film, the constituents have at least one of the uniaxial anisotropy and the multiaxial anisotropy. The ferrite film has the magnetic anisotropy or the magnetic isotropy. The ferrite film is formed by the use of the plating method in the presence of a magnetic field. Furthermore, an electromagnetic noise suppressor includes the ferrite film.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: January 9, 2007
    Assignee: NEC Tokin Corporation
    Inventors: Koichi Kondo, Okikuni Takahata, Tatsuya Chiba, Hiroshi Ono, Shigeyoshi Yoshida, Masanori Abe, Masahiro Yamaguchi
  • Publication number: 20040157085
    Abstract: A ferrite film is formed by regularly arranging constituents such as magnetized grains or one analogous to that. In the ferrite film, the constituents have at least one of the uniaxial anisotropy and the multiaxial anisotropy. The ferrite film has the magnetic anisotropy or the magnetic isotropy. The ferrite film is formed by the use of the plating method in the presence of a magnetic field. Furthermore, an electromagnetic noise suppressor includes the ferrite film.
    Type: Application
    Filed: September 11, 2003
    Publication date: August 12, 2004
    Applicant: NEC TOKIN Corporation
    Inventors: Koichi Kondo, Okikuni Takahata, Tatsuya Chiba, Hiroshi Ono, Shigeyoshi Yoshida, Masanori Abe, Masahiro Yamaguchi
  • Patent number: 4543378
    Abstract: A polyamide composition having an enhanced adhesion to coatings, which comprises a polyamide with a ratio of the terminal amino group concentration to the terminal carboxyl group concentration of at least 1.5, an inorganic filler, and a triazine, wherein the amount of the inorganic filler is from 1 to 150 weight parts per 100 weight parts of the polyamide and the amount of the triazine is more than 1 weight part per 100 weight parts of the sum of the polyamide and the inorganic filler.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: September 24, 1985
    Assignees: Ube Industries, Ltd., Nissan Motor Company, Ltd.
    Inventors: Akito Suhara, Kazuhiko Takasugi, Toshihide Sato, Masashi Ono, Kazuo Higuchi, Tatsuya Chiba
  • Patent number: 4341414
    Abstract: A back door stay arrangement for an automotive vehicle including an opening formed at the back of the automotive vehicle, comprising a back door hinged at its upper portion to the upper edge portion of said opening so that said back door can be opened or closed; a back door stay fitted between a side edge portion of said opening and said back door for the purpose of supporting said back door; a weather strip adapted to seal said opening with said back door when said back door is closed; a stepped portion formed on the inner portion of said side edge portion of said opening inside of the sealing point of said weather strip in such a way that said stepped portion can cover said back door stay, one end of said back door stay being provided on said stepped portion; and a barrier embossed in a convex form on the inner side of said back door at a position corresponding to said stepped portion, the other end of said back door stay being provided on said barrier; whereby said back door stay can be placed in a space d
    Type: Grant
    Filed: October 9, 1979
    Date of Patent: July 27, 1982
    Assignee: Nissan Motor Company, Limited
    Inventor: Tatsuya Chiba