Patents by Inventor Tomonori Imayoshi

Tomonori Imayoshi 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).

  • Patent number: 6197829
    Abstract: An external preparation for topical administration which aims at inhibiting rejection reactions at organ or bone marrow transplantation or treating autoimmune diseases or allergic diseases and contains as the active ingredient 2-amino-2-(2-(4-octylphenyl)ethyl)propane-1,3-diol or a pharmaceutically acceptable acid addition salt thereof.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: March 6, 2001
    Assignee: Welfide Corporation
    Inventors: Tsuneo Fujii, Tadashi Mishina, Koji Teshima, Tomonori Imayoshi
  • Patent number: 6121329
    Abstract: An external preparation for topical administration which aims at inhibiting rejection reactions at organ or bone marrow transplantation or treating autoimmune diseases or allergic diseases and contains as the active ingredient 2-amino-2-(2-(4-octylphenyl)ethyl)propane-1,3-diol or a pharmaceutically acceptable acid addition salt thereof.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: September 19, 2000
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Tsuneo Fujii, Tadashi Mishina, Koji Teshima, Tomonori Imayoshi
  • Patent number: 4808593
    Abstract: Benzopyranopyridineacetic acid ester compounds of the formula: ##STR1## wherein R.sup.1, and R.sup.2 and R.sup.3 independently represent hydrogen or C.sub.1-4 alkyl; and n is 1 or 2, and their pharmaceutical use are disclosed.These compounds possess antiinflammatory, analgesic and antipyretic activities with less adverse action on the gastrointestinal tract.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: February 28, 1989
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Takanori Oe, Kazuyuki Kawasaki, Michio Terasawa, Tomonori Imayoshi
  • Patent number: 4808620
    Abstract: A pyrazolopyridine compound of the formula: ##STR1## or a salt thereof, wherein each symbol is as defined in the specification. Said compounds exhibit antiinflammatory, analgesic, antipyretic, antiallergic, antiarthritic, antirheumatic activities or inhibitory activities on platelet aggregation.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: February 28, 1989
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Takanori Oe, Kazuyuji Kawasaki, Michio Terasawa, Tomonori Imayoshi, Yukihiro Yasunaga
  • Patent number: 4728644
    Abstract: Purine derivatives of the formula: ##STR1## wherein R is hydrogen, alkyl or phenyl which may be substituted by at least one halogen, lower alkyl or lower alkoxy; each of R.sup.1 and R.sup.2 is hydrogen, alkyl, cycloalkyl, hydroxyalkyl, dialkylaminoalkyl, cyclic aminoalkyl, alkenyl or aralkyl, or R.sup.1 and R.sup.2 together with the adjacent nitrogen atom form a heterocycle; and each of R.sup.3 and R.sup.4 is hydrogen or lower alkyl, and pharmaceutically acceptable acid addition salts thereof and/or hydrates, methods of preparing said compounds and pharmaceutical compositions containing said compounds. The purine compounds exhibit antiinflammatory, analgesic, antipyretic and antiallergic activity, and inhibitory activity on platelet aggregation, and are useful as drugs.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: March 1, 1988
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Hiroshi Yuki, Hiroyuki Sueoka, Mitsuyoshi Yasumoto, Michio Terasawa, Tomonori Imayoshi
  • Patent number: 4576940
    Abstract: 3-Indolecarboxamide compounds of the formula: ##STR1## inclusive of pharmaceutically acceptable acid addition salt and/or hydrate forms thereof, wherein R.sup.1 is C.sub.1-8 alkyl, C.sub.3-8 cycloalkyl, C.sub.3-8 cycloalkyl-C.sub.1-8 alkyl, allyl, propargyl, or phenyl or phenyl-C.sub.1-4 alkyl which may be optionally substituted, on the benzene ring, by at least one substituent selected from the group consisting of halogen, trifluoromethyl, C.sub.1-4 alkyl and C.sub.1-4 alkoxy; R.sup.2 is H or C.sub.1-6 alkyl; R.sup.3 is H, halogen, C.sub.2-6 alkanoyloxy, benzoyloxy, C.sub.1-4 alkoxy, benzyloxy, hydroxy or C.sub.1-4 alkyl; R.sup.4 is H, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or hydroxy; R.sup.5 is H or C.sub.1-4 alkoxy; A is ethylene or trimethylene, which may be optionally substituted by C.sub.1-4 alkyl; n is zero, 1 or 2; and m is zero or 1, are useful as drugs for the prevention and treatment of various allergic diseases.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: March 18, 1986
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Tetsuya Tahara, Tsuguo Ikebe, Michio Terasawa, Tomonori Imayoshi