Patents by Inventor Kenji Mizoue

Kenji Mizoue 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 recording medium and dipyrromethene metal chelate compound for use therein
    Patent number: 6355327
    Abstract: A novel optical recording medium having at least a recording layer and a reflective layer on a substrate is herein disclosed, wherein at least one dipyrromethene metal chelate compound represented by formula (1) is contained in the recording layer: wherein R1 and R9 are each independently an alkenyl group, an aryl group or a heteroaryl group; R2 to R8 are each independently a hydrogen atom, a halogen atom, or a substituted or unsubstituted alkyl, alkoxy, alkenyl, acyl, alkoxycarbonyl, aralkyl, aryl or heteroaryl group having 20 or less carbon atoms; and M is a transition metal.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: March 12, 2002
    Assignees: Mitsui Chemicals, Inc., Yamamoto Chemicals, Inc.
    Inventors: Tsutami Misawa, Taizo Nishimoto, Hisashi Tsukahara, Akira Ogiso, Kenichi Sugimoto, Kenji Mizoue, Keisuke Takuma, Kenichi Kato, Toshihiro Masaoka, Yojiro Kumagae
  • Optical recording medium and dipyrromethene metal chelate compound for use therein
    Patent number: 6162520
    Abstract: A novel optical recording medium having at least a recording layer and a reflective layer on a substrate is herein disclosed, wherein at least one dipyrromethene metal chelate compound represented by formula (1) is contained in the recording layer: ##STR1## wherein R.sub.1 and R.sub.9 are each independently an alkenyl group, an aryl group or a heteroaryl group; R.sub.2 to R.sub.8 are each independently a hydrogen atom, a halogen atom, or a substituted or unsubstituted alkyl, alkoxy, alkenyl, acyl, alkoxycarbonyl, aralkyl, aryl or heteroaryl group having 20 or less carbon atoms; and M is a transition metal.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: December 19, 2000
    Assignees: Mitsui Chemicals, Inc., Yamamoto Chemicals, Inc.
    Inventors: Tsutami Misawa, Taizo Nishimoto, Hisashi Tsukahara, Akira Ogiso, Kenichi Sugimoto, Kenji Mizoue, Keisuke Takuma, Kenichi Kato, Toshihiro Masaoka, Yojiro Kumagae