Patents by Inventor Eiichi Suenaga

Eiichi Suenaga 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).

  • 2,5-Benzodiazocine derivatives and salts thereof, as well as pharmaceutical agent comprising as effective component at least one of the derivatives and salts
    Patent number: 4435392
    Abstract: A 2,5-benzodiazocine derivative represented by a formula ##STR1## wherein R.sub.1 is phenyl or p-methoxyphenyl, R.sub.2 is hydrogen or methyl, and R.sub.3 is p-methoxyphenethyl, 3-(p-fluorobenzoyl)-propyl, cyclopropylmethyl or ##STR2## or a salt of such novel compound as well as a CNS-active pharmaceutical agent containing as an effective component at least one of said derivatives and salts.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: March 6, 1984
    Assignee: Sanwa Kagaku Kenkyusho Co. Ltd.
    Inventors: Masatoshi Ban, Kenji Miura, Yutaka Baba, Noriyuki Iwata, Akira Fukui, Mikio Hori, Hajime Fujimura, Eiichi Suenaga
  • Process for production of stabilized powdery secretin preparation by lyophilization
    Patent number: 3940480
    Abstract: Stabilized powdery secretin preparation wherein secretin is carried on an adequate amount of alanine serving as excipient and weighing material, which is produced by lyophilization of an aqueous solution of secretin in the presence of alanine, the product being useful for therapeutic treatment of diseases and for diagnosis of disorders in digestive tracts such as pancreas and gallbladder.
    Type: Grant
    Filed: April 26, 1973
    Date of Patent: February 24, 1976
    Assignee: Eisai Co., Ltd.
    Inventors: Eiichi Suenaga, Shinro Tachibana, Nagayasu Sato