Patents by Inventor Yasuo Hoshide

Yasuo Hoshide 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).

  • 1-aminoethyl phosphonic acid derivatives
    Patent number: 5151521
    Abstract: New phosphonic acid derivatives are described which display antibacterial activity.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: September 29, 1992
    Assignee: Merck & Co., Inc.
    Inventors: Yoshiharu Morita, Haruyuki Chaki, Yasuo Hoshide, Junko Takashima, Arthur A. Patchett
  • Phosphinic acid derivatives
    Patent number: 5061806
    Abstract: New phosphonic acid derivatives are described which display antibacterial activity.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: October 29, 1991
    Assignee: Merck & Co., Inc.
    Inventors: Yoshiharu Morita, Yasuo Hoshide, Haruyuki Chaki, Junko Takashima, Arthur A. Patchett
  • Aminoethylphosphinic acid derivatives
    Patent number: 5030732
    Abstract: Disclosed are some new aminoethylphosphinic acid derivatives useful as antibacterial agents.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: July 9, 1991
    Assignee: Merck & Co., Inc.
    Inventors: Yoshiharu Morita, Yasuo Hoshide, Ryoichi Ando, Masao Taniguchi
  • 1,4-Dihydropyridine compound
    Patent number: 4495356
    Abstract: 1,4-Dihydropyridine compound having the general formula: ##STR1## wherein R and R' are independently a methyl, ethyl, or propyl group. This compound has a remarkable liver protective action and a low toxicity.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: January 22, 1985
    Assignees: Nikken Chemicals Co., Ltd., Institute of Organic Synthesis Academy of Sciences Latvian SSR.
    Inventors: Yoichi Inoue, Toshio Matsumoto, Hirosuke Niwa, Kenichi Suzuki, Yasuo Hoshide
  • Process for producing 5-fluorouracil derivative with a calcium chloride catalyst
    Patent number: 4121037
    Abstract: 5-Fluorouracil derivative having the formula ##STR1## wherein R represents hydrogen atom or 2-tetrahydrofuryl group is produced by reacting more than equi-mole of 2,3-dihydrofuran with 5-fluorouracil in a polar aprotic solvent with a catalytically effective amount of a catalyst selected from the group consisting of metal halides, non-metal halides, tertiary amine salt of inorganic acids and organic acids in neutral or basic condition at 50.degree. to 150.degree. C under pressure.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: October 17, 1978
    Assignee: Nikken Chemicals Co., Ltd.
    Inventors: Toshio Nakamura, Yasuo Hoshide, Yoshio Hashimoto, Kenichi Suzuki, Yohji Yoshida
  • Process for producing desacetoxy cephalosporanic acid compound
    Patent number: 3966720
    Abstract: A process for producing a desacetoxy cephalosporanic acid represented by formula (III), ##SPC1##wherein R.sub.1 is acyl, and R.sub.2 is alkyl, aryl or arylalkyl, which comprises: heating a penicillin sulfoxide of the formula (I), ##SPC2##wherein R.sub.1 and R.sub.2 are the same as hereinbefore defined at 50.degree. to 160.degree.C in an inert organic solvent in the presence of a sulfonate represented by formula (II), ##EQU1## wherein A is R.sub.5 --N--R.sub.6, R.sub.5 --N--O--R.sub.6, S--R.sub.6, R.sub.5 --S.fwdarw.O, and R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are lower alkyl, phenyl, benzyl or phenethyl, R.sub.7 is 1-12C alkyl, phenyl, 1-12C alkyl-substituted-phenyl, naphthyl, 1-12C alkyl-substituted naphthyl, halogen-substituted phenyl and wherein when A is R.sub.5 --N--R.sub.6 or R.sub.5 --N--O--R.sub.6, R.sub.3, R.sub.4 and R.sub.5 may form a heterocyclic ring together with the nitrogen atom, and when A is S--R.sub.6, R.sub.3 and R.sub.4 may form a heterocyclic 4-5C polymethylene ring or R.sub.6 and R.sub.
    Type: Grant
    Filed: December 10, 1973
    Date of Patent: June 29, 1976
    Assignee: Nikken Chemicals Co., Ltd.
    Inventors: Tatsuo Tomioka, Yasuo Hoshide, Hirosi Ogawa, Kenichi Suzuki