Patents by Inventor Kanichi Nakamura

Kanichi Nakamura 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).

  • Thiazolidine derivatives with anti-diabetic activity, their preparation and their use
    Patent number: 5143930
    Abstract: Compounds of formula (I): ##STR1## in which: A is a group of formula (II) or (III): ##STR2## W is methylene, carbonyl or >C.dbd.N--OV, where V is hydrogen, sulfo, acyl or alkyl; U is methylene, or W is absent and U is a carbon-carbon double bond between A and --CR.sup.1 (OH)--; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each hydrogen or alkyl; Y.sup.1 and Y.sup.2 are each hydrogen or a hydroxy-protecting group; and n is 1, 2 or 3 and salts thereof have anti-diabetic activity in mammals. Methods of preparing them are also provided.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: September 1, 1992
    Assignee: Sankyo Company, Limited
    Inventors: Takao Yoshioka, Takashi Fujita, Tsutomu Kanai, Kanichi Nakamura, Hiroyoshi Horikoshi, Kunihiro Sasahara, Takeshi Kinoshita
  • Cyclopenta[d]pyrimidine derivatives and use as antidepressants
    Patent number: 4749704
    Abstract: Compounds of formula (I): ##STR1## (wherein R.sup.1 and R.sup.2 are hydroxy, alkoxy, aryloxy or acyloxy or R.sup.2 is hydrogen, R.sup.3 is hydrogen or alkyl and R.sup.4 and R.sup.5 are hydrogen or various organic substituents) have valuable antidepressant activity and may be used in the treatment of mental depression.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: June 7, 1988
    Assignees: Sankyo Company Limited, Ube Industries Limited
    Inventors: Nobuyoshi Iwata, Isao Nakayama, Kanichi Nakamura, Tomio Kimura, Takashi Kobayashi
  • Water lubricated bearing device
    Patent number: 3971606
    Abstract: Water lubricated bearing devices best adapted to be used in water or sea water are disclosed wherein a composite bearing member comprising an elastic bearing member lined with a thermoplastic resin compound is anchored to the inner wall of a bush fitted into a support member.
    Type: Grant
    Filed: May 21, 1974
    Date of Patent: July 27, 1976
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Yoshiki Nakano, Heiichiro Nakamura, Tatsuo Fujita, Kanichi Nakamura, Masaaki Higo