Patents by Inventor Shigeo Ishiguro

Shigeo Ishiguro 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).

  • Process for reducing aldehydes or ketones
    Patent number: 4877909
    Abstract: A process for reducing an aldehyde or ketone in the presence of a stable, highly active catalyst which is insoluble in a solvent and which can be recovered easily from the reaction system after completion of the reaction and used repeatedly, characterized in that an aldehyde or ketone having a carbonyl group is reacted with an alcohol in the presence of hydrous zirconium oxide as the catalyst.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: October 31, 1989
    Assignee: Japan Tobacco, Inc.
    Inventors: Sigenobu Mizusaki, Hajime Matsushita, Shigeo Ishiguro, Hiroshi Ichinose, Akira Izumi
  • Carbon monoxide oxidizing catalyst
    Patent number: 4845065
    Abstract: A carbon monoxide oxidizing catalyst for removing carbon monoxide from an air comprises a porous carrier, and on said carrier, a palladium salt and a copper salt as main active components and a vanadium compound or a vanadium compound and a phosphorous compound as a promotor.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: July 4, 1989
    Assignee: Topy Industries, Ltd. and Japan Tobacco, Inc.
    Inventors: Kenichiro Sugimori, Masaru Yamamoto, Ikuo Horii, Shigeo Ishiguro, Hajime Matsushita, Hiroshi Ichinose, Shigenobu Mizusaki