Patents by Inventor Noboru Jinbo

Noboru Jinbo 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: 6653000
    Abstract: Provided is a magnetic recording medium that is employed to particular advantage as an external recording medium for the recording of digital data, having a layer in which carbon black is well dispersed, and in particular, a backcoat layer. A magnetic recording medium comprising a layer comprising a granular substance and a binder, wherein said layer comprises the compound denoted by general formula (I) below. A—N═N—X—Y  General formula (I) (in general formula (I), A denotes a component forming an azo dye with X—Y; X denotes a group selected from among the divalent connecting groups denoted by the structural formulas below: (in general formula (II), Z denotes a lower alkylene group; —NR2 denotes a lower alkylamino group or a nitrogen-comprising five-membered or six-membered heterocyclic ring; and a denotes 1 or 2)).
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: November 25, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Noboru Jinbo, Akihiko Takeda, Takekatsu Sugiyama, Tomohiro Kodama
  • Publication number: 20020064687
    Abstract: Provided is a magnetic recording medium that is employed to particular advantage as an external recording medium for the recording of digital data, having a layer in which carbon black is well dispersed, and in particular, a backcoat layer. A magnetic recording medium comprising a layer comprising a granular substance and a binder, wherein said layer comprises the compound denoted by general formula (I) below.
    Type: Application
    Filed: September 28, 2001
    Publication date: May 30, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Noboru Jinbo, Akihiko Takeda, Takekatsu Sugiyama, Tomohiro Kodama