Patents by Inventor Keitaro Fujikura

Keitaro Fujikura 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).

  • Patent number: 9663445
    Abstract: The present invention provides a synthesis system that can synthesize aniline and/or styrene efficiently, a synthesis system that can synthesize butadiene (1,3-butadiene) efficiently, a rubber chemical for a tire which is synthesized from the aniline obtained by the synthesis system, a synthetic rubber for a tire which is synthesized from the styrene and/or butadiene obtained by the synthesis systems, and a pneumatic tire produced using the rubber chemical for a tire and/or the synthetic rubber for a tire. The present invention relates to a synthesis system for synthesizing aniline and/or styrene from an alcohol having two or more carbon atoms via an aromatic compound.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: May 30, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takayuki Hattori, Takao Wada, Keitaro Fujikura, Yuka Yokoyama, Toshiro Matsuo
  • Publication number: 20150315125
    Abstract: The present invention provides a synthesis system that can synthesize aniline and/or styrene efficiently, a synthesis system that can synthesize butadiene (1,3-butadiene) efficiently, a rubber chemical for a tire which is synthesized from the aniline obtained by the synthesis system, a synthetic rubber for a tire which is synthesized from the styrene and/or butadiene obtained by the synthesis systems, and a pneumatic tire produced using the rubber chemical for a tire and/or the synthetic rubber for a tire. The present invention relates to a synthesis system for synthesizing aniline and/or styrene from an alcohol having two or more carbon atoms via an aromatic compound.
    Type: Application
    Filed: July 16, 2015
    Publication date: November 5, 2015
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takayuki HATTORI, Takao WADA, Keitaro FUJIKURA, Yuka YOKOYAMA, Toshiro Matsuo
  • Patent number: 9115047
    Abstract: The present invention provides a synthesis system that can synthesize aniline and/or styrene efficiently, a synthesis system that can synthesize butadiene (1,3-butadiene) efficiently, a rubber chemical for a tire which is synthesized from the aniline obtained by the synthesis system, a synthetic rubber for a tire which is synthesized from the styrene and/or butadiene obtained by the synthesis systems, and a pneumatic tire produced using the rubber chemical for a tire and/or the synthetic rubber for a tire. The present invention relates to a synthesis system for synthesizing aniline and/or styrene from an alcohol having two or more carbon atoms via an aromatic compound.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: August 25, 2015
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takayuki Hattori, Takao Wada, Keitaro Fujikura, Yuka Yokoyama, Toshiro Matsuo
  • Publication number: 20130090445
    Abstract: The present invention provides a synthesis system that can synthesize aniline and/or styrene efficiently, a synthesis system that can synthesize butadiene (1,3-butadiene) efficiently, a rubber chemical for a tire which is synthesized from the aniline obtained by the synthesis system, a synthetic rubber for a tire which is synthesized from the styrene and/or butadiene obtained by the synthesis systems, and a pneumatic tire produced using the rubber chemical for a tire and/or the synthetic rubber for a tire. The present invention relates to a synthesis system for synthesizing aniline and/or styrene from an alcohol having two or more carbon atoms via an aromatic compound.
    Type: Application
    Filed: January 25, 2012
    Publication date: April 11, 2013
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takayuki Hattori, Takao Wada, Keitaro Fujikura, Yuka Yokoyama, Toshiro Matsuo
  • Patent number: 8404467
    Abstract: The object of the present invention is to provide processes for producing an antiaging agent, a vulcanization accelerator and a modified natural rubber, which are environmentally friendly and allow to make provision against a decrease of petroleum resources in the future. According to the present invention, glucose is used as carbon neutral resources and is converted into aniline or an aniline derivative by a microorganism. An antiaging agent, a vulcanization accelerator or a modified natural rubber is produced from thus obtained aniline or aniline derivative.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: March 26, 2013
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Keitaro Fujikura
  • Publication number: 20120259048
    Abstract: An object of the present invention is to provide processes for producing a rubber anti-aging agent, a vulcanization accelerator and a modified natural rubber, by converting glucose into benzoic acid or a benzoic acid derivative by a microorganism or extracting benzoic acid or a benzoic acid derivative from a plant, converting the obtained benzoic acid or benzoic acid derivative into aniline or an aniline derivative and then making the rubber anti-aging agent, vulcanization accelerator or modified natural rubber with the aniline or aniline derivative.
    Type: Application
    Filed: June 18, 2012
    Publication date: October 11, 2012
    Inventor: Keitaro FUJIKURA
  • Patent number: 8222011
    Abstract: An object of the present invention is to provide processes for producing a rubber anti-aging agent, a vulcanization accelerator and a modified natural rubber converting glucose into benzoic acid or a benzoic acid derivative by a microorganism or extracting benzoic acid or a benzoic acid derivative from a plant, converting the obtained benzoic acid or benzoic acid derivative into aniline or an aniline derivative and then making the rubber anti-aging agent, vulcanization accelerator or modified natural rubber with the aniline or aniline derivative.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: July 17, 2012
    Assignees: Sumitomo Rubber Industries, Ltd., Research Institute of Innovative Technology for the Earth
    Inventor: Keitaro Fujikura
  • Publication number: 20090306431
    Abstract: An object of the present invention is to provide processes for producing an antiaging agent, a vulcanization accelerator and a modified natural rubber, which are environmentally friendly and capable of making provision against a decrease of petroleum resources in the future. An antiaging agent, a vulcanization accelerator or a modified natural rubber is produced by a method comprising: converting glucose into benzoic acid or a benzoic acid derivative by a microorganism or extracting benzoic acid or a benzoic acid derivative from a plant; and converting the obtained benzoic acid or benzoic acid derivative into aniline or an aniline derivative.
    Type: Application
    Filed: May 21, 2009
    Publication date: December 10, 2009
    Inventor: Keitaro FUJIKURA
  • Publication number: 20080242823
    Abstract: The object of the present invention is to provide processes for producing an antiaging agent, a vulcanization accelerator and a modified natural rubber, which are environmentally friendly and allow to make provision against a decrease of petroleum resources in the future. According to the present invention, glucose is used as carbon neutral resources and is converted into aniline or an aniline derivative by a microorganism. An antiaging agent, a vulcanization accelerator or a modified natural rubber is produced from thus obtained aniline or aniline derivative.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Inventor: Keitaro Fujikura