Patents by Inventor Syouichi Kaneko

Syouichi Kaneko 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).

  • Diimmonium compound and use thereof
    Patent number: 7521006
    Abstract: Disclosed is a near-infrared absorbing compound which does not contain antimony or arsenic, and has excellent stability, especially excellent heat resistance, light resistance and moist heat resistance. Also disclosed are a near-infrared absorbing filter, which is produced by using the near-infrared absorbing compound, and has excellent resistance such as light resistance and heat resistance, an optical filter and an optical recording medium. Specifically disclosed are a diimmonium compound represented by the formula (1) below and a near-infrared absorbing filter obtained by using such a diimmonium compound. Further specifically disclosed are a near-infrared absorbing filter wherein an adhesive layer containing the diimmonium compound is arranged on a transparent supporting body, and an optical filter using such a near-infrared absorbing filter.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: April 21, 2009
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Masaaki Ikeda, Takaaki Kurata, Syouichi Kaneko, Junichi Segawa
  • Diimmonium Compound and Use Thereof
    Publication number: 20080067478
    Abstract: Disclosed is a near-infrared absorbing compound which does not contain antimony or arsenic, and has excellent stability, especially excellent heat resistance, light resistance and moist heat resistance. Also disclosed are a near-infrared absorbing filter, which is produced by using the near-infrared absorbing compound, and has excellent resistance such as light resistance and heat resistance, an optical filter and an optical recording medium. Specifically disclosed are a diimmonium compound represented by the formula (1) below and a near-infrared absorbing filter obtained by using such a diimmonium compound. Further specifically disclosed are a near-infrared absorbing filter wherein an adhesive layer containing the diimmonium compound is arranged on a transparent supporting body, and an optical filter using such a near-infrared absorbing filter.
    Type: Application
    Filed: September 2, 2005
    Publication date: March 20, 2008
    Inventors: Masaaki Ikeda, Takaaki Kurata, Syouichi Kaneko, Junichi Segawa