Patents by Inventor Shigeru Kuromiya

Shigeru Kuromiya 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: 7696375
    Abstract: This invention provides a method for producing a lactic acid ester that can minimize input energy at the time of production, that can reduce chemical costs, and that can minimize equipment costs. This method comprises steps of: performing an esterification reaction in a reaction solution containing ammonium lactate obtained via fermentation and alcohol with an ammonia concentration of 1.0% by weight or lower; and recovering the lactic acid ester synthesized in the above step.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: April 13, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shigeru Kuromiya, Osamu Saotome, Ikuo Yamaguchi, Kazunori Habu
  • Publication number: 20090104675
    Abstract: Lactic acid with high optical purity that has not previously been achieved is produced. It has been found that the optical purity of lactic acid is reduced as the racemization reaction of lactic acid proceeds when lactic acid coexists with glycerol. By reducing the amount of glycerol prior to concentrating lactic acid by heating, the optical purity of lactic acid after concentration by heating can be maintained at a high level.
    Type: Application
    Filed: November 20, 2008
    Publication date: April 23, 2009
    Inventors: Ikuo Yamaguchi, Osamu Saotome, Shigeru Kuromiya, Tohru Ohnishi, Noriko Yasutani, Satoshi Saitoh, Makoto Mouri, Mitsuru Nakano, Arimitsu Usuki, Nobuhiro Ishida, Kenro Tokuhiro, Eiji Nagamori, Haruo Takahashi
  • Publication number: 20090105501
    Abstract: This invention provides a method for producing a lactic acid ester that can minimize input energy at the time of production, that can reduce chemical costs, and that can minimize equipment costs. This method comprises steps of: performing an esterification reaction in a reaction solution containing ammonium lactate obtained via fermentation and alcohol with an ammonia concentration of 1.0% by weight or lower; and recovering the lactic acid ester synthesized in the above step.
    Type: Application
    Filed: June 27, 2006
    Publication date: April 23, 2009
    Inventors: Shigeru Kuromiya, Osamu Saotome, Ikuo Yamaguchi, Kazunori Habu
  • Publication number: 20070161098
    Abstract: Lactic acid with high optical purity that has not previously been achieved is produced. It has been found that the optical purity of lactic acid is reduced as the racemization reaction of lactic acid proceeds when lactic acid coexists with glycerol. By reducing the amount of glycerol prior to concentrating lactic acid by heating, the optical purity of lactic acid after concentration by heating can be maintained at a high level.
    Type: Application
    Filed: September 7, 2005
    Publication date: July 12, 2007
    Inventors: Ikuo Yamaguchi, Osamu Saotome, Shigeru Kuromiya, Tohru Ohnishi, Noriko Yasutani, Satoshi Saitoh, Makoto Mouri, Mitsuru Nakano, Arimitsu Usuki, Nobuhiro Ishida, Kenro Tokuhiro, Eiji Nagamori, Haruo Takahashi