Patents by Inventor Mayumi Yoshigi

Mayumi Yoshigi 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).

  • Imide derivatives and their production and use
    Patent number: 5780632
    Abstract: An imide compound of the formula: ##STR1## wherein Z is a group of the formula: ##STR2## in which B is a carbonyl group or a sulfonyl group, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each a hydrogen atom or a lower alkyl group, or R.sup.1 and R.sup.2 or R.sup.1 and R.sup.3 may be combined together to make a non-aromatic hydrocarbon ring or R.sup.1 and R.sup.3 may be combined together to make an aromatic ring, said non-aromatic hydrocarbon ring being optionally bridged with a lower alkylene group or an oxygen atom therein and said aromatic ring, said non-aromatic hydrocarbon ring and said lower alkylene group being each optionally substituted with at least one lower alkyl, and n is an integer of 0 or 1;D is a group of the formula:--(CH.sub.2).sub.p --A--(CH.sub.2).sub.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: July 14, 1998
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Ikutaro Saji, Masayuki Muto, Norihiko Tanno, Mayumi Yoshigi
  • Imide derivatives, and their production and use
    Patent number: 5532372
    Abstract: An imide compound of the formula: ##STR1## wherein Z is a group of the formula: ##STR2## in which the substituents are defined herein, and n is an integer of 0 to 1;D is a group of the formula:--(CH.sub.2).sub.p --A--(CH.sub.2).sub.q --in which A is a non-aromatic hydrocarbon ring optionally bridged with a lower alkylene group or an oxygen atom, said non-aromatic hydrocarbon ring and said lower alkylene group being each optionally substituted with at least one lower alkyl, and p and q are each an integer of 0, 1 or 2; andAr is an aromatic group, a heterocyclic aromatic group, a benzoyl group, a phenoxy group or a phenylthio group and G is >N--, >CH-- or >COH-- or Ar is a biphenylmethylidene group and G is >C.dbd., all of the above groups being each optionally substituted with at least one of lower alkyl, lower alkoxy and halogen; and its acid addition salts, useful as an antipsycotic agent.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: July 2, 1996
    Assignee: Sumitomo Pharmaceuticals Company, Ltd.
    Inventors: Ikutaro Saji, Masayuki Muto, Norihiko Tanno, Mayumi Yoshigi
  • Imide derivatives, and their use in pharmaceuticals
    Patent number: 4948799
    Abstract: An imide derivative of the formula: ##STR1## or a pharmaceutically acceptable salt, which is useful as an antipsychotic drug.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: August 14, 1990
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Fujio Antoku, Mayumi Yoshigi, Ikutaro Saji, Atsuyuki Kojima, Kukuo Ishizumi
  • Imide derivatives and their pharmaceutical use
    Patent number: 4937249
    Abstract: A compound of the formula: ##STR1## or its acid addition salt, which is useful as a psychotic drug.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: June 26, 1990
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Fujio Antoku, Mayumi Yoshigi, Ikutaro Saji, Kikuo Ishizumi
  • Imide derivatives and their use in the treatment psychosis
    Patent number: 4812461
    Abstract: An imide derivative of the formula: ##STR1## or a pharmaceutically acceptable salt, which is useful as an antipsychotic drug.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: March 14, 1989
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Fujio Antoku, Mayumi Yoshigi, Ikutaro Saji, Atsuyuki Kojima, Kukuo Ishizumi