Patents by Inventor Yoshikuni Suzuki

Yoshikuni Suzuki 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).

  • Isoprenylic acid amide derivatives
    Patent number: 4555365
    Abstract: Compounds of the formula R.sub.1 --CO--NH.sub.2 wherein R.sub.1 is ##STR1## are described. The compounds are useful in the treatment of hypertension and hyperlipidemia.
    Type: Grant
    Filed: February 17, 1984
    Date of Patent: November 26, 1985
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Yoshiyuki Tahara, Toshihiro Takahashi, Hiroyasu Koyama, Yoshikuni Suzuki, Masatoshi Yasuda
  • Isocarbostyril derivatives
    Patent number: 4526893
    Abstract: Compounds of the structure ##STR1## wherein X, R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are as herein defined, effective as .beta.-blockers and hypotensive agents, are described.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: July 2, 1985
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Toshihiro Takahashi, Noriyoshi Sueda, Masahiro Tsuji, Yoshiyuki Tahara, Hiroyasu Koyama, Yoshikuni Suzuki, Masao Nagase, Toshiji Sugai
  • Isocarbostyril derivative
    Patent number: 4517365
    Abstract: Isocarbostyrils of the formula ##STR1## wherein R is a branched alkyl of 3 to 4 carbon atoms, and the acid addition salts thereof, having .beta.-adrenergic blocking activity, are described.
    Type: Grant
    Filed: June 22, 1982
    Date of Patent: May 14, 1985
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Hiroyasu Koyama, Masahiro Tsuji, Yoshikuni Suzuki
  • Isocarbostyril derivatives
    Patent number: 4129565
    Abstract: Isocarbostyrils of the formula ##STR1## wherein R.sub.1 represents a lower alkyl group having 1 to 4 carbon atoms, and R.sub.3 and R.sub.4, same or different, individually means hydrogen or an alkyl, aralkyl or cycloalkyl group provided at least either one of R.sub.3 and R.sub.4 should not be hydrogen, or R.sub.3 and R.sub.4 together with the adjacent nitrogen atom may form a heterocyclic ring, having anti-arrhythmic activity and low toxicity are prepared by reacting a 4-substituted isocarbostyril derivative of the formula ##STR2## wherein R.sub.1 is the same as defined above and R.sub.2 represents ##STR3## or its functional equivalent, e.g. --Ch.sub.2 --CH(OH)CH.sub.2 X in which X represents a halogen atom, with an alkyl amine of the general formula ##STR4## wherein R.sub.3 and R.sub.4 are same as defined above..
    Type: Grant
    Filed: December 16, 1976
    Date of Patent: December 12, 1978
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Hideo Fukushima, Yoshikuni Suzuki