Patents by Inventor Kouji Yamada

Kouji Yamada 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).

  • Conjugated polyprenylcarboxylic acids and their derivatives
    Patent number: 4655973
    Abstract: A conjugated polyprenylcarboxylic acid and its derivative having the formula: ##STR1## in which each of n and m is 0, 1 or 2, n+m is 1 or 2, A is ##STR2## and R is the hydroxyl group, a lower alkoxy group or ##STR3## wherein each of R.sub.1 and R.sub.2 represents the hydrogen atom, a lower alkyl group, or an aryl group; provided that R is ##STR4## if A is ##STR5## n is 1 and m is 0.
    Type: Grant
    Filed: May 6, 1981
    Date of Patent: April 7, 1987
    Assignee: Eisai Co., Ltd.
    Inventors: Isao Yamatsu, Yuichi Inai, Shinya Abe, Takeshi Suzuki, Yoshikazu Suzuki, Osamu Tagaya, Kouichi Suzuki, Kouichi Abe, Kouji Yamada
  • Therapeutic and preventive agent containing dolichol
    Patent number: 4613593
    Abstract: Dolichol or phosphate thereof is useful as a therapeutically treating and preventive agent, in particular, for hyperuricuria, hyperlipemia, diabetes and hepatic diseases.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: September 23, 1986
    Assignee: Eisai Co., Ltd.
    Inventors: Isao Yamatsu, Takeshi Suzuki, Shinya Abe, Kouji Nakamoto, Akiharu Kajiwara, Kouichi Katayama, Hajime Tsunoda, Manabu Murakami, Hideki Ono, Kouji Yamada
  • Therapeutic and preventive agent containing dolichol
    Patent number: 4603126
    Abstract: Dolichol or phosphate thereof is useful as a therapeutically treating and preventive agent, in particular, for hyperuricuria, hyperlipemia, diabetes and hepatic diseases.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: July 29, 1986
    Assignee: Eisai Co. Ltd.
    Inventors: Isao Yamatsu, Takeshi Suzuki, Shinya Abe, Kouji Nakamoto, Akiharu Kajiwara, Kouichi Katayama, Hajime Tsunoda, Manabu Murakami, Hideki Ono, Kouji Yamada
  • Therapeutic and preventive agent containing dolichol
    Patent number: 4599328
    Abstract: Dolichol or phosphate thereof is useful as a therapeutically treating and preventive agent, in particular, for hyperuricuria, hyperlipemia, diabetes and hepatic diseases.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: July 8, 1986
    Assignee: Eisai Co., Ltd.
    Inventors: Isao Yamatsu, Takeshi Suzuki, Shinya Abe, Kouji Nakamoto, Akiharu Kajiwara, Kouichi Katayama, Hajime Tsunoda, Manabu Murakami, Hideki Ono, Kouji Yamada