Patents by Inventor Koki Ishikawa

Koki Ishikawa 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: 12545036
    Abstract: A medium transport device includes a belt unit that is a unit having a transport belt configured to attract and transport a medium and that is rotatably supported on both sides in a width direction, which intersects a medium transport direction; a first support section that is disposed on one side of the belt unit in the width direction and that rotatably supports the belt unit; a second support section that is disposed on the other side of the belt unit in the width direction and that rotatably supports the belt unit; and a motor that is a power source for rotating the belt unit with respect to the first support section and the second support section, wherein: a handwheel is configured to be attached to and detached from an output shaft of the motor or a rotation shaft on a power transmission mechanism that transmits power from the motor to the belt unit.
    Type: Grant
    Filed: May 29, 2023
    Date of Patent: February 10, 2026
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hiroyuki Kosuge, Koki Ishikawa
  • Publication number: 20230382136
    Abstract: A medium transport device includes a belt unit that is a unit having a transport belt configured to attract and transport a medium and that is rotatably supported on both sides in a width direction, which intersects a medium transport direction; a first support section that is disposed on one side of the belt unit in the width direction and that rotatably supports the belt unit; a second support section that is disposed on the other side of the belt unit in the width direction and that rotatably supports the belt unit; and a motor that is a power source for rotating the belt unit with respect to the first support section and the second support section, wherein: a handwheel is configured to be attached to and detached from an output shaft of the motor or a rotation shaft on a power transmission mechanism that transmits power from the motor to the belt unit.
    Type: Application
    Filed: May 29, 2023
    Publication date: November 30, 2023
    Inventors: Hiroyuki KOSUGE, Koki ISHIKAWA
  • Publication number: 20220370657
    Abstract: A recording device includes: a medium accommodation portion configured to accommodate a plurality of media; a feeding portion configured to send out the media from the medium accommodation portion; a recording section configured to perform recording on the media sent out from the medium accommodation portion; an ultraviolet-light emitting portion provided at a position opposed to the medium accommodation portion and configured to emit ultraviolet light toward the media accommodated in the medium accommodation portion; and a control unit configured to control the ultraviolet-light emitting portion to emit ultraviolet light to the media by utilizing a period before the feeding portion starts to feed the media.
    Type: Application
    Filed: May 19, 2022
    Publication date: November 24, 2022
    Inventor: Koki ISHIKAWA
  • Publication number: 20140234916
    Abstract: The present invention provides a methodology for improving a yield of 2R,4R-Monatin. Specifically, the present invention provides a method for producing 2S,4R-Monatin or a salt thereof, comprising contacting 4R-IHOG with an L-amino acid aminotransferase in the presence of an L-amino acid to form the 2S,4R-Monatin; a method for producing 2R,4R-Monatin or a salt thereof, comprising isomerizing the 2S,4R-Monatin to form the 2R,4R-Monatin; and the like. These production methods may further comprise condensing indole-3-pyruvate and pyruvate to form the 4R-IHOG, and deaminating a tryptophan to form the indole-3-pyruvate.
    Type: Application
    Filed: March 31, 2014
    Publication date: August 21, 2014
    Applicant: Ajinomoto Co., Inc.
    Inventors: Yasuaki Takakura, Hiroomi Ogino, Masakazu Sugiyama, Kenichi Mori, Eri Tabuchi, Koki Ishikawa, Uno Tagami, Hidemi Fujii
  • Patent number: 8771997
    Abstract: The present invention provides a methodology for improving a yield of 2R,4R-Monatin. Specifically, the present invention provides a method for producing 2S,4R-Monatin or a salt thereof, comprising contacting 4R-IHOG with an L-amino acid aminotransferase in the presence of an L-amino acid to form the 2S,4R-Monatin; a method for producing 2R,4R-Monatin or a salt thereof, comprising isomerizing the 2S,4R-Monatin to form the 2R,4R-Monatin; and the like. These production methods may further comprise condensing indole-3-pyruvate and pyruvate to form the 4R-IHOG, and deaminating a tryptophan to form the indole-3-pyruvate.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: July 8, 2014
    Assignee: Ajinomoto Co., Inc.
    Inventors: Yasuaki Takakura, Hiroomi Ogino, Masakazu Sugiyama, Kenichi Mori, Eri Tabuchi, Koki Ishikawa, Uno Tagami, Hidemi Fujii
  • Publication number: 20120270279
    Abstract: The present invention provides a methodology for improving a yield of 2R,4R-Monatin. Specifically, the present invention provides a method for producing 2S,4R-Monatin or a salt thereof, comprising contacting 4R-IHOG with an L-amino acid aminotransferase in the presence of an L-amino acid to form the 2S,4R-Monatin; a method for producing 2R,4R-Monatin or a salt thereof, comprising isomerizing the 2S,4R-Monatin to form the 2R,4R-Monatin; and the like. These production methods may further comprise condensing indole-3-pyruvate and pyruvate to form the 4R-IHOG, and deaminating a tryptophan to form the indole-3-pyruvate.
    Type: Application
    Filed: October 12, 2011
    Publication date: October 25, 2012
    Applicant: AJINOMOTO CO. INC
    Inventors: Yasuaki Takakura, Hiroomi Ogino, Masakazu Sugiyama, Kenichi Mori, Eri Tabuchi, Koki Ishikawa, Uno Tagami, Hidemi Fujii