Patents by Inventor Kayako Ueda

Kayako Ueda 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 producing carbonyl compounds
    Patent number: 4551556
    Abstract: The invention relates to a process of producing a carbonyl compound by dehydrogenating a linear aliphatic alcohol of 1 to 6 carbon atoms in the gas phase in the presence of a solid catalyst comprising a ruthenium catalyst supported on a carrier such as zinc oxide or magnesium oxide.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: November 5, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Eiichiro Nishikawa, Masuo Shinya, Kayako Ueda, Katsumi Kaneko
  • Process for the low polymerization of isobutene
    Patent number: 4513166
    Abstract: 1-Butene and isobutene are effectively separated without isomerization of 1-butene by contacting an isobutene-containing hydrocarbon mixture with a solid acid catalyst having a solid acid quantity of 0.05 to 0.25 mmol/g of solid acid catalyst, represented by the adsorption quantity of pyridine, thus low-polymerizing selectively isobutene and then separating the low polymers of isobutene from 1-butene.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: April 23, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Satoshi Sakurada, Takao Hashimoto, Nobuaki Tagaya, Tsugio Maeshima, Kayako Ueda, Masahiro Kokubo
  • Process for the low polymerization of isobutene
    Patent number: 4454367
    Abstract: 1-Butane and isobutene are effectively separated without isomerization of 1-butene by contacting an isobutene-containing hydrocarbon mixture with a solid acid catalyst having a solid acid quantity of 0.05 to 0.25 mmol/g of solid acid catalyst, represented by the adsorption quantity of pyridine, thus low-polymerizing selectively isobutene and then separating the low polymers of isobutene from 1-butene.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: June 12, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Satoshi Sakurada, Takao Hashimoto, Nobuaki Tagaya, Tsugio Maeshima, Kayako Ueda, Masahiro Kokubo