Patents by Inventor Shinichiro Iuchi

Shinichiro Iuchi 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).

  • Optical data recording medium
    Patent number: 4996089
    Abstract: An optical data recording medium provided with a recording layer, the recording medium having excellent durability to light and heat, superior writing sensitivity and a high C/N value, wherein at least one a group of anion selected from a group of hexafluorophosphate ion (PF.sub.6 .sup.-), trifluoromethane sulfonate ion (CF.sub.3 SO.sub.3 .sup.-) or thiocyanate ion (SCN.sup.-) is present as the anion in an indol cyanine dye having a methyne chain present in the recording layer of the optical data recording medium.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: February 26, 1991
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Osamu Saito, Hisamitsu Kamezaki, Masashi Suenaga, Ryo Nagai, Shinichiro Iuchi, Hitoshi Watanabe, Hideo Fujiwara