Patents by Inventor Kazuhiko Shinyama

Kazuhiko Shinyama 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).

  • Dehydrogenation catalysts
    Patent number: 6242379
    Abstract: A catalyst for the production of alkenylaromatics from alkylaromatics, wherein the catalyst is predominantly iron oxide, an alkali metal compound and a small amount of a source for palladium or platinum. Additional components of the catalyst may include compounds based on cerium, molybdenum, tungsten and other such promoters. Also a process for the production of alkenylaromatics from alkylaromatics using this catalyst.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: June 5, 2001
    Assignee: United Catalysts Inc.
    Inventors: David Williams, Yuji Mishima, Andrzej Rokicki, Kazuhiko Shinyama, Dennis J. Smith
  • Dehydrogenation catalysts
    Patent number: 6191065
    Abstract: A catalyst for the production of alkenylaromatics from alkylaromatics, wherein the catalyst is predominantly iron oxide, an alkali metal compound and less than about 100 ppm of a source for a noble metal, such as palladium, platinum, ruthenium, rhenium, osmium, rhodium or iridium. Additional components of the catalyst may include compounds based on cerium, molybdenum, tungsten and other such promoters. Also a process for the production of alkenylaromatics from alkylaromatics using this catalyst.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: February 20, 2001
    Assignees: Nissan Girdler Catalysts Company, United Catalysts Inc.
    Inventors: David Williams, Yuji Mishima, Andrzej Rokicki, Kazuhiko Shinyama, Dennis Smith
  • Process for dehydrogenation of alkylaromatic hydrocarbons using a dehydrogenation catalyst
    Patent number: 6177602
    Abstract: A catalyst for the production of alkenylaromatics from alkylaromatics, wherein the catalyst is predominantly iron oxide, an alkali metal compound and a small amount of a source for palladium or platinum. Additional components of the catalyst may include compounds based on cerium, molybdenum, tungsten and other such promoters. Also a process for the production of alkenylaromatics from alkylaromatics using this catalyst.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: January 23, 2001
    Assignees: United Catalysts, Inc., Nissan Girdler Catalysts Co., Ltd.
    Inventors: David L. Williams, Yuji Mishima, Andrzej Rokicki, Kazuhiko Shinyama, Dennis Smith