Patents by Inventor Shun Inokuma

Shun Inokuma 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).

  • Tricyclic cage compounds, their synthesis and use as antiviral agents
    Patent number: 4347254
    Abstract: A compound of the formula: ##STR1## wherein A.sub.1 is a single bond or a C.sub.1 -C.sub.5 alkylene group bonding at the 2-, 2'- or 3-position, A.sub.2 is a C.sub.1 -C.sub.3 alkylene group, A.sub.3 is a C.sub.1 -C.sub.4 alkylene group, X is --O-- or --SO.sub.n -- and B is a carboxy group, a C.sub.2 -C.sub.5 alkoxycarbonyl group, a cyano group, an amino group of the formula: ##STR2## or a carbamoyl group of the formula: ##STR3## which is useful as an antiviral agent with no side effect.
    Type: Grant
    Filed: July 22, 1980
    Date of Patent: August 31, 1982
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Junki Katsube, Hiromi Shimomura, Shun Inokuma, Akihiko Sugie
  • Process for preparing acid amides
    Patent number: 4096184
    Abstract: A process for preparing acid amides by hydration of the corresponding nitrile compounds with water in the presence of a catalyst, characterized in that the catalyst is the one prepared by treating a vanadate with a cuprous salt or with at least two of metallic copper, a cuprous salt and a cupric salt.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: June 20, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinji Nakamura, Shun Inokuma, Shin Tanaka, Kenichi Hirose, Takashi Deguchi
  • Production of alpha-amino acids
    Patent number: 4082767
    Abstract: .alpha.-Amino acids are prepared by catalytically hydrolyzing a hydantoin compound of the formula, ##STR1## wherein R.sub.1 and R.sub.2 are individually hydrogen or an unsubstituted or substituted alkyl, cycloalkyl, alkenyl, aryl or aralkyl group, in the presence of imidazole or a derivative thereof.
    Type: Grant
    Filed: March 30, 1976
    Date of Patent: April 4, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takeshi Yamahara, Shun Inokuma
  • Process for preparing acid amides
    Patent number: 3980662
    Abstract: The acid amides are produced by a process comprising hydrating a nitrile compound in the presence of a copper-containing polymer having basic nitrogenous groups in the polymer chain or linked with the polymer chain as a catalyst.
    Type: Grant
    Filed: June 12, 1974
    Date of Patent: September 14, 1976
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshihiro Watanabe, Takeshi Yamahara, Shun Inokuma, Tooru Tokumaru