Patents by Inventor Koro Shirane

Koro Shirane 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).

  • Amino acid derivative having liquid crystal property and process for production of the same
    Patent number: 5091557
    Abstract: A novel amino acid derivative is disclosed, which is produced using a relatively inexpensive amino acid as a starting material for an optically active moiety and shows a chiral nematic phase or a chiral smectic phase over a wide temperature range around room temperature. A process for producing the amino acid derivative is also disclosed.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: February 25, 1992
    Assignee: Showa Denko K.K.
    Inventors: Kimie Nagai, Schuichi Naijoh, Ayako Kurotaki, Koro Shirane, Chozo Inoue
  • Amino acid derivative having liquid crystal property and process for production of the same
    Patent number: 5041602
    Abstract: A novel amino acid derivative is disclosed, which is produced using a relatively inexpensive amino acid as a starting material for an optically active moiety and shows a chiral nematic phase or a chiral smectic phase over a wide temperature range around room temperature. A process for producing the amino acid derivative is also disclosed.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: August 20, 1991
    Assignee: Showa Denko K.K.
    Inventors: Kimie Nagai, Schuichi Naijoh, Ayako Kurotaki, Koro Shirane, Chozo Inoue