Patents by Inventor Tomoki Akita

Tomoki Akita 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).

  • Gold cluster catalyst and method for producing same
    Patent number: 9533285
    Abstract: A gold cluster catalyst is capable of promoting/controlling a chemical reaction with high catalytic activity and selectivity. The gold cluster catalyst has a carrier supporting clusters, each of which is an aggregate of a plurality of gold atoms, which can be obtained by providing the carrier supporting a plurality of gold cluster compounds and then processing the gold cluster compounds on the carrier, in which each of the gold cluster compounds is stabilized by an organic ligand and including a predetermined number of gold atoms. In the gold cluster catalyst, each of the clusters may have a particle diameter of 10 nm or less and be formed substantially only of gold atoms.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: January 3, 2017
    Assignee: TOKYO METROPOLITAN UNIVERSITY
    Inventors: Masatake Haruta, Yue Yu, Jiahui Huang, Ayako Taketoshi, Tamao Ishida, Tomoki Akita, Atsushi Ogata, Hyun-Ha Kim
  • GOLD CLUSTER CATALYST AND METHOD FOR PRODUCING SAME
    Publication number: 20150151279
    Abstract: A gold cluster catalyst is capable of promoting/controlling a chemical reaction with high catalytic activity and selectivity. The gold cluster catalyst has a carrier supporting clusters, each of which is an aggregate of a plurality of gold atoms, which can be obtained by providing the carrier supporting a plurality of gold cluster compounds and then processing the gold cluster compounds on the carrier, in which each of the gold cluster compounds is stabilized by an organic ligand and including a predetermined number of gold atoms. In the gold cluster catalyst, each of the clusters may have a particle diameter of 10 nm or less and be formed substantially only of gold atoms.
    Type: Application
    Filed: June 7, 2013
    Publication date: June 4, 2015
    Applicant: TOKYO METROPOLITAN UNIVERSITY
    Inventors: Masatake Haruta, Yue Yu, Jiahui Huang, Ayako Taketoshi, Tamao Ishida, Tomoki Akita, Atsushi Ogata, Hyun-Ha Kim
  • Method for producing propylene oxide
    Patent number: 7973184
    Abstract: Disclosed is a method for producing propylene oxide wherein propylene is directly oxidized with oxygen, as required, water and a catalytic amount of hydrogen in a gas phase in the presence of a gold cluster catalyst supported on an alkali-treated titanosilicalite or mesoporous titanosilicate support, which is produced by an alkaline treatment of titanosilicalite or mesoporous titanosilicate with aqueous solution of NaOH, KOH or CsOH.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: July 5, 2011
    Assignees: Tokyo Metropolitan University, National Institute of Advanced Industrial Science and Technology
    Inventors: Masatake Haruta, Jiahui Huang, Takashi Takei, Tomoki Akita
  • METHOD FOR PRODUCING PROPYLENE OXIDE
    Publication number: 20100234623
    Abstract: Disclosed is a method for producing propylene oxide wherein propylene is directly oxidized with oxygen, as required, water and a catalytic amount of hydrogen in a gas phase in the presence of a gold cluster catalyst supported on an alkali-treated titanosilicalite or mesoporous titanosilicate support, which is produced by an alkaline treatment of titanosilicalite or mesoporous titanosilicate with aqueous solution of NaOH, KOH or CsOH.
    Type: Application
    Filed: March 9, 2010
    Publication date: September 16, 2010
    Inventors: Masatake Haruta, Jiahui Huang, Takashi Takei, Tomoki Akita