Patents by Inventor Ryouta Yasumatsu

Ryouta Yasumatsu 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).

  • Compound and process for producing amide compound therewith
    Patent number: 8624021
    Abstract: The present invention provides novel cyclododecanone-O-azacyclotridecen-2-yloxime and cyclododecanone-O-azacyclotridecen-2-yloxime hydrochloride. The invention also provides a process for producing an amide compound wherein cyclododecanone-O-azacyclotridecen-2-yloxime, hydrogen chloride and/or Lewis acid or cyclododecanone-O-azacyclotridecen-2-yloxime hydrochloride are used as a rearrangement catalyst and/or a reaction starting material in a reaction step.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: January 7, 2014
    Assignee: Ube Industries, Ltd.
    Inventors: Tsunemi Sugimoto, Mitsuru Kishishita, Junichi Kugimoto, Kazunori Kurosawa, Hideo Shimomura, Ryouta Yasumatsu
  • NOVEL COMPOUND AND PROCESS FOR PRODUCING AMIDE COMPOUND THEREWITH
    Publication number: 20130005961
    Abstract: The present invention provides novel cyclododecanone-O-azacyclotridecen-2-yloxime and cyclododecanone-O-azacyclotridecen-2-yloxime hydrochloride. The invention also provides a process for producing an amide compound wherein cyclododecanone-O-azacyclotridecen-2-yloxime, hydrogen chloride and/or Lewis acid or cyclododecanone-O-azacyclotridecen-2-yloxime hydrochloride are used as a rearrangement catalyst and/or a reaction starting material in a reaction step.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 3, 2013
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Tsunemi Sugimoto, Mitsuru Kishishita, Junichi Kugimoto, Kazunori Kurosawa, Hideo Shimomura, Ryouta Yasumatsu
  • Process for producing laurolactam
    Patent number: 8338589
    Abstract: The present invention relates to a process for producing laurolactam from cyclododecanone oxime by liquid-phase rearrangement reaction using trichlorotriazine as a rearrangement catalyst. The present invention can provide a process which can solve the problem of termination of the reaction at a certain conversion, can prevent an inactive precipitate generated from trichlorotriazine from precipitating in the course of the reaction process, and can remove an inactive precipitate, an active intermediate and a residual catalyst.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: December 25, 2012
    Assignee: UBE Industries, Ltd.
    Inventors: Junichi Kugimoto, Nobuhiro Ii, Takashi Doi, Satoru Fujitsu, Tadashi Gotou, Hideo Shimomura, Ryouta Yasumatsu, Joji Kawai
  • Process for producing laurolactam
    Patent number: 8309714
    Abstract: Provided is a process for efficiently producing laurolactam by simple steps from cyclododecanone and hydroxylamine.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: November 13, 2012
    Assignee: Ube Industries, Ltd.
    Inventors: Junichi Kugimoto, Joji Kawai, Hideo Shimomura, Ryouta Yasumatsu, Nobuhiro Ii
  • PROCESS FOR PRODUCING LAUROLACTAM
    Publication number: 20110065913
    Abstract: The present invention relates to a process for producing laurolactam from cyclododecanone oxime by liquid-phase rearrangement reaction using trichlorotriazine as a rearrangement catalyst. The present invention can provide a process which can solve the problem of termination of the reaction at a certain conversion, can prevent an inactive precipitate generated from trichlorotriazine from precipitating in the course of the reaction process, and can remove an inactive precipitate, an active intermediate and a residual catalyst.
    Type: Application
    Filed: May 19, 2009
    Publication date: March 17, 2011
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Junichi Kugimoto, Nobuhiro Ii, Takashi Doi, Satoru Fujitsu, Tadashi Gotou, Hideo Shimomura, Ryouta Yasumatsu, Joji Kawai
  • PROCESS FOR PRODUCING LAUROLACTAM
    Publication number: 20100267944
    Abstract: Provided is a process for efficiently producing laurolactam by simple steps from cyclododecanone and hydroxylamine.
    Type: Application
    Filed: November 19, 2008
    Publication date: October 21, 2010
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Junichi Kugimoto, Joji Kawai, Hideo Shimomura, Ryouta Yasumatsu, Nobuhiro II