Patents by Inventor Takeshi Kushiku

Takeshi Kushiku 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).

  • Method of making a diL-lysine monosulfate trihydrate crystal
    Patent number: 7553367
    Abstract: A diL-lysine monosulfate trihydrate crystal which has a large tabular form and is more easily separable from the mother liquor is described. The crystal is obtained by a novel process wherein crystallization is conducted at a lower temperature.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: June 30, 2009
    Assignee: Ajinomoto Co., Inc.
    Inventors: Takeshi Kushiku, Dave Steckelberg, Toshiya Tanabe, Jirou Haga, Shinya Fujiki, Kisho Suzuki
  • DiL-lysine monosulfate trihydrate crystal and method of making
    Patent number: 7161029
    Abstract: A diL-lysine monosulfate trihydrate crystal which has a large tabular form and is more easily separable from the mother liquor. The crystal is obtained by a novel process of conducting crystallization at a lower temperature.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: January 9, 2007
    Assignee: Ajinomoto Co., Inc.
    Inventors: Takeshi Kushiku, Dave Steckelberg, Toshiya Tanabe, Jirou Haga
  • METHOD OF MAKING A DIL-LYSINE MONOSULFATE TRIHYDRATE CRYSTAL
    Publication number: 20060281945
    Abstract: A diL-lysine monosulfate trihydrate crystal which has a large tabular form and is more easily separable from the mother liquor is described. The crystal is obtained by a novel process wherein crystallization is conducted at a lower temperature.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 14, 2006
    Inventors: Takeshi Kushiku, Dave Steckelberg, Toshiya Tanabe, Jirou Haga, Shinya Fujiki, Kisho Suzuki
  • Method for purifying succinic acid from fermentation broth
    Publication number: 20060276674
    Abstract: Succinic acid is produced by bringing a succinic acid-containing liquid containing succinic acid and cation which is obtained by fermentation or an enzymatic method into contact with an H-type strongly acidic cation-exchange resin in an amount equivalent to or more than the amount of cation other than hydrogen ion contained in the succinic acid-containing liquid, and precipitating a crystal of succinic acid from the obtained ion-exchange-treated liquid to obtain purified succinic acid.
    Type: Application
    Filed: March 29, 2006
    Publication date: December 7, 2006
    Applicants: AJINOMOTO CO., INC., Mitsubishi Chemical Corporation
    Inventors: Takeshi Kushiku, Kenji Fujiwara, Takeru Satou, Chiaki Sano
  • DiL-lysine monosulfate trihydrate crystal and method of making
    Publication number: 20050132947
    Abstract: A diL-lysine monosulfate trihydrate crystal which has a large tabular form and is more easily separable from the mother liquor. The crystal is obtained by a novel process of conducting crystallization at a lower temperature.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 23, 2005
    Inventors: Takeshi Kushiku, Dave Steckelberg, Toshiya Tanabe, Jirou Haga