Patents by Inventor Shigeru Takanashi

Shigeru Takanashi 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).

  • Pharmaceutical composition for treating transplanted tumor cells
    Patent number: 4507309
    Abstract: A treating agent whose effective ingredient is an anthranyl derivative of the formula: ##STR1## (wherein R.sub.1 and R.sub.2 may be the same or different and represent a hydrogen atom, a hydroxyl group, a lower alkoxy group, preferably C.sub.1 -C.sub.3 alkoxy group, a lower alkyl group, preferably C.sub.1 -C.sub.3 alkyl group, a nitro group or a halogen atom) is disclosed.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: March 26, 1985
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Shin-ichi Kaiho, Koji Mizuno, Shun-ichi Hata, Masuo Koizumi, Masamitsu Honda, Yasushi Murakami, Shigeru Takanashi, Minoru Shindo
  • Novel uracil derivatives, process for preparing the same and a pharmaceutical composition containing the same
    Patent number: 4415573
    Abstract: Novel uracil derivatives of the formula ##STR1## (wherein R.sub.1, R.sub.2 R.sub.3 and X are defined in the description) and their pharmaceutically acceptable salts, process for preparing the same and pharmaceutical composition containing the same are disclosed. The uracil derivatives have good antitumor activity and, therefore, are useful as antitumor preparation.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: November 15, 1983
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kiyoshige Ochi, Katsuhito Miyamoto, Hiroki Mitsui, Yumiko Tsuruma, Isao Matsunaga, Takashi Matsuno, Shigeru Takanashi, Minoru Shindo
  • Dibenz[b,f][1,4]oxazepine derivatives, process for preparing the same, and pharmaceutical compositions comprising the same
    Patent number: 4379150
    Abstract: Dibenz[b,f][1,4]oxazepine derivatives of the formula ##STR1## (wherein R.sub.1 is a hydrogen atom or a lower alkyl group; R.sub.2 is a branched lower alkyl group; R.sub.3 is a hydrogen atom, a carboxyl group, a carbamoyl group, a lower alkoxycarbonyl group, or a lower alkoxy group; R.sub.4 and R.sub.5 are each a lower alkyl group or may, when taken together with a nitrogen atom, form a heterocyclic ring; and A is a lower alkylene group) or salts thereof, a process for preparing the same and pharmaceutical compositions comprising the same are disclosed. The derivatives of the formula above are effective to prevent and treat circulatory diseases, especially angina pectoris, and therefore, useful as medicines.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: April 5, 1983
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kiyohiko Ito, Masuo Koizumi, Yasushi Murakami, Michitaka Akima, Jinichiro Aono, Yasuhiro Ohba, Tamotsu Yamazaki, Kazushige Sakai, Shun-ichi Hata, Shigeru Takanashi
  • Nicotinamide derivative, process for preparing the same and pharmaceutical composition containing the same
    Patent number: 4366161
    Abstract: Novel compound, 1,2-bis(nicotinamido)propane and its pharmaceutically acceptable salts, a process for preparing the same and a pharmaceutical composition containing the same as an active ingredient are disclosed.The compound acts to prevent or spasmolyse cerebral vasospasms, to prevent cerebral apoplexy and to lower the lipoperoxide level in blood.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: December 28, 1982
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Takashi Mori, Sakae Takaku, Fumiaki Matsuura, Yasushi Murakami, Yukifumi Noda, Tamotsu Yamazaki, Tomohiro Neichi, Hiroshi Nakakimura, Shigeyuki Kataoka, Takashi Matsuno, Shun-ichi Hata, Shigeru Takanashi
  • Tetrahydronicotinamide derivative, pharmaceutical compositions and use
    Patent number: 4361572
    Abstract: 1,4,5,6-Tetrahydronicotinamide derivative represented by the formula: ##STR1## (wherein R is defined in the specification), a process of preparing the same and pharmaceutical composition containing the same are disclosed.The compound has action for suppressing aggregation of platelets, and antiinflammatory, antipyretic and analgesic actions.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: November 30, 1982
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Sakae Takaku, Fumiaki Matsuura, Takashi Mori, Yasushi Murakami, Shigeyuki Kataoka, Yasuhisa Takeda, Yasuhiro Yamashita, Yumiko Takeda, Takashi Matsuno, Koji Mizuno, Shinichi Kaiho, Tamotsu Yamazaki, Shun-ichi Hata, Shigeru Takanashi