Patents by Inventor Nobuhito Kurono

Nobuhito Kurono 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).

  • Cyanation catalyst and method for producing optically active cyanhydrin compound using the same
    Patent number: 8163947
    Abstract: The present invention can provide a cyanation catalyst represented by the general formula (I): (in the formula (I), R1 through R4 are each an optionally substituted hydrocarbon group; R1 and R2 and/or R3 and R4 may form an optionally substituted carbon chain ring; R5 through R8 are each a hydrogen atom, or an optionally substituted hydrocarbon group; R5 and R6 and/or R7 and R8 may form an optionally substituted carbon chain ring; R9 and R10 are each a hydrogen atom, or an optionally substituted hydrocarbon group; W, X and Y each represent an optionally substituted binding chain; X and/or Y may be non-existent; M represents a metal or a metal ion; and ligands of M may each be located at any position).
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: April 24, 2012
    Assignees: National University Corporation, Hokkaido University, Mitsubishi Rayon Co., Ltd.
    Inventors: Takeshi Ohkuma, Nobuhito Kurono
  • Hydrogenation promoter, hydrogenation catalyst, and process for producing alkene compound
    Patent number: 7619125
    Abstract: A hydrogenation promoter of the present invention is produced by reacting an alkyne compound or an alkene compound, a palladium compound represented by a general formula Pd(II)XjLk (where L represents a monodentate ligand or a polydendate ligand other than a phosphorus-containing ligand (when two or more Ls are present in the compound, the Ls may be the same or different), X represents an anionic group, j represents a value determined according to the valence of X so that Xj has a valence of ?2 as a whole, and k represents an integer in the range of 0 to 4), and a base in an organic solvent. Specifically, The hydrogenation promoter of the invention includes palladium nanoparticles containing the alkyne compound or the alkene compound as an agglomeration-preventing agent.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: November 17, 2009
    Assignees: Kanto Kagaku Kabushiki Kaisha, Nagoya Industrial Science Research Institute
    Inventors: Junichi Hori, Kunihiko Murata, Nobuhito Kurono, Takeshi Ohkuma, Ryoji Noyori
  • Hydrogenation Promoter, Hydrogenation Catalyst, and Process for Producing Alkene Compound
    Publication number: 20080033221
    Abstract: A hydrogenation promoter of the present invention is produced by reacting an alkyne compound or an alkene compound, a palladium compound represented by a general formula Pd(II)XjLk (where L represents a monodentate ligand or a polydendate ligand other than a phosphorus-containing ligand (when two or more Ls are present in the compound, the Ls may be the same or different), X represents an anionic group, j represents a value determined according to the valence of X so that Xj has a valence of ?2 as a whole, and k represents an integer in the range of 0 to 4), and a base in an organic solvent. Specifically, The hydrogenation promoter of the invention includes palladium nanoparticles containing the alkyne compound or the alkene compound as an agglomeration-preventing agent.
    Type: Application
    Filed: March 30, 2005
    Publication date: February 7, 2008
    Applicant: NAGOYA INDUSTRIAL SCIENCE RESEARCH INSTITUTE
    Inventors: Junichi Hori, Kunihiko Murata, Nobuhito Kurono, Takeshi Ohkuma, Ryoji Noyori