Patents by Inventor Teiichi Hattori

Teiichi Hattori 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).

  • Separation agent for optical isomers
    Patent number: 5030354
    Abstract: A separating agent comprising ovomucoid and a carrier is useful to separate an optical isomer from a racemoid by way of chromatography.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: July 9, 1991
    Assignee: Eisai Co., Ltd.
    Inventors: Toshinobu Miwa, Teiichi Hattori, Masanori Tsuno, Masaki Ichikawa, Takeshi Miyakawa, Yasuo Miyake
  • Solid preparation comprising cobamamide or mecobalamin
    Patent number: 4337246
    Abstract: A solid preparation according to the invention comprises cobamamide or mecobalamin as an effective ingredient and a red dye suitable for food as a stabilizer to light.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: June 29, 1982
    Assignee: Eisai Co., Ltd.
    Inventors: Susumu Iwagiri, Teiichi Hattori, Teruyoshi Nasu, Yasuo Miyake