Patents by Inventor Hisato Nagase

Hisato Nagase 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).

  • Heat-sensitive recording material
    Publication number: 20040161694
    Abstract: A heat-sensitive recording material including a substrate and a heat-sensitive recording layer containing a diazonium salt and a coupler, the heat-sensitive recording layer being disposed on or over the substrate, wherein the diazonium salt is a compound represented by the following general formula (1): 1
    Type: Application
    Filed: August 20, 2003
    Publication date: August 19, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Yoshihiro Jimbo, Hisato Nagase, Yasuhiro Mitamura
  • Heat-sensitive recording material
    Patent number: 6743750
    Abstract: A heat-sensitive recording material includes, on a support thereof, a heat-sensitive recording layer containing a diazo compound and a coupler.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: June 1, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisato Nagase, Yoshihiro Jimbo
  • Diazonium salt and thermal recording material using the same
    Publication number: 20040063021
    Abstract: A diazonium salt represented by the following general formula (1) and a thermal recording material using the diazonium salt: 1
    Type: Application
    Filed: September 3, 2003
    Publication date: April 1, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Akinori Fujita, Kimiatsu Nomura, Yoshihiro Jimbo, Hisato Nagase, Toshihide Aoshima, Yasuhiro Mitamura, Tatsuo Kawabuchi
  • Diazonium salt and heat-sensitive recording material
    Patent number: 6703345
    Abstract: The present invention provides a diazonium salt represented by the following general formula (1) wherein R1 represents a branched alkyl group; R2 and R3 separately represent an alkyl group and may bond to each other to form a ring; R4, R5, and R6 separately represent a hydrogen atom, an alkyl group, or an aryl group and R4 and R5 may bond to each other to form a ring; and X− represents an anion and a heat-sensitive recording material comprising a heat-sensitive recording layer including the diazonium salt and a coupler.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: March 9, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kimiatsu Nomura, Tatsuo Kawabuchi, Hisato Nagase, Satoshi Higuchi, Kimi Ikeda, Yoshihiro Jinbo
  • Diazonium salt, its synthesizing method and recording material
    Publication number: 20040039180
    Abstract: The present invention relates to a diazonium salt represented by the following general formula (1) and a synthesizing method thereof, as well as a recording material using the diazonium salt.
    Type: Application
    Filed: August 8, 2003
    Publication date: February 26, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Kimiatsu Nomura, Hisato Nagase, Yasuhiro Mitamura
  • Diazonium salt and heat-sensitive recording material
    Publication number: 20020183204
    Abstract: The present invention provides a diazonium salt represented by the following general formula (1) wherein R1 represents a branched alkyl group; R2 and R3separately represent an alkyl group and may bond to each other to form a ring; R4, R5, and R6 separately represent a hydrogen atom, an alkyl group, or an aryl group and R4 and R5 may bond to each other to form a ring; and X— represents an anion and a heat-sensitive recording material comprising a heat-sensitive recording layer including the diazonium salt and a coupler.
    Type: Application
    Filed: April 26, 2002
    Publication date: December 5, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Kimiatsu Nomura, Tatsuo Kawabuchi, Hisato Nagase, Satoshi Higuchi, Kimi Ikeda, Yoshihiro Jinbo
  • Heat-sensitive recording material
    Publication number: 20020086797
    Abstract: A heat-sensitive recording material includes, on a support thereof, a heat-sensitive recording layer containing a diazo compound and a coupler.
    Type: Application
    Filed: November 13, 2001
    Publication date: July 4, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hisato Nagase, Yoshihiro Jimbo
  • Pyrrolo[1,2-a]pyrimidine compound and heat-sensitive recording material using the same
    Patent number: 6329116
    Abstract: An object of the present invention is to provide a pyrrolo[1,2-a]pyrimidine compound that is useful as a coupler providing excellent hue of a cyan system and sufficient density of formed color. The pyrrolo[1,2-a]pyrimidine compound of the present invention for achieving the object is represented by one of following general formulae (1), (2) and (3).
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: December 11, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Sato, Tatsuo Kawabuchi, Mitsuyuki Tsurumi, Tetsunori Matsushita, Hisato Nagase, Kimiatsu Nomura, Yoshihiro Jimbo, Kazunori Nigorikawa