Patents by Inventor Takeshi Wakamatsu

Takeshi Wakamatsu 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).

  • Compound and use of the same as medicine
    Patent number: 5344845
    Abstract: Disclosed herein is a specific cinnamic acid derivative such as methyl 4-(4-acetoxy-3-methoxycinnamanide)-1-cyclohexanecarboxylate, or a pharmaceutically acceptable salt thereof. These compounds are useful as IV-type allergic reaction-suppressive drugs.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: September 6, 1994
    Assignee: Tsumura & Co.
    Inventors: Akihide Koda, Koji Waragai, Yutaka Ono, Hideyuki Ozawa, Hideki Kawamura, Masao Maruno, Takeshi Wakamatsu
  • Process for the preparation of polycyclic compounds using ferric perchlorate and acid trifluoroacidic
    Patent number: 5321135
    Abstract: Polycyclic compounds (I) can be prepared in accordance with the following reaction formula: ##STR1## wherein R.sub.1 -R.sub.8 each represents a hydrogen atom, a hydroxyl group, an alkoxyl group or a substituted or unsubstituted benzyloxy group or neighboring two groups of R.sub.1 -R.sub.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: June 14, 1994
    Assignee: Tsumura & Co.
    Inventors: Masahide Tanaka, Takeshi Wakamatsu, Hiroshi Mitsuhashi, deceased, by Mieko Mitsuhashi, heiress, by Hiroyuki Mitsuhashi, heir, by Tomoai Mitsuhashi, heir