Patents by Inventor Toshikazu Yada

Toshikazu Yada 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).

  • Chondroitin synthase and nucleic acid encoding the enzyme
    Patent number: 7470529
    Abstract: A human-derived novel chondroitin synthase, which is an enzyme for synthesizing a fundamental backbone of chondroitin and has both glucuronic acid transferring activity and N-acetylgalactosamine transferring activity.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: December 30, 2008
    Assignees: Seikagaku Kogyo Kabushiki Kaisha, National Institute of Advanced Industrial Science and Technology
    Inventors: Hisashi Narimatsu, Koji Kimata, Toshikazu Yada, Takashi Sato, Masanori Goto
  • CHONDROITIN SYNTHASE AND NUCLEIC ACID ENCODING THE ENZYME
    Publication number: 20080070996
    Abstract: A human-derived novel chondroitin synthase, which is an enzyme for synthesizing a fundamental backbone of chondroitin and has both glucuronic acid transferring activity and N-acetylgalactosamine transferring activity.
    Type: Application
    Filed: May 14, 2007
    Publication date: March 20, 2008
    Inventors: Hisashi Narimatsu, Koji Kimata, Toshikazu Yada, Takashi Sato, Masanori Goto
  • Chondroitin synthase and DNA encoding the enzyme
    Patent number: 7273729
    Abstract: A human-derived novel chondroitin synthase, which is an enzyme for synthesizing a fundamental backbone of chondroitin and has both glucuronic acid transferase activity and N-acetylgalactosamine transferase activity.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: September 25, 2007
    Assignees: Seikagaku Kogyo Kabushiki Kaisha, National Institute of Advanced Industrial Science and Technology
    Inventors: Hisashi Narimatsu, Koji Kimata, Toshikazu Yada, Takashi Sato, Masanori Goto
  • Sugar chain-cleaving agent
    Publication number: 20070160593
    Abstract: A sugar chain-cleaving agent, which comprises a protein having activity of degrading chondroitin and/or chondroitin sulfate; a medicament which comprises the sugar chain-cleaving agent as an active ingredient; a method for specifically cleaving a sugar chain, which comprises reacting the protein with chondroitin and/or chondroitin sulfate; and a method for specifically producing a sugar chain of which molecular weight is decreased, which reacting the protein with chondroitin and/or chondroitin sulfate.
    Type: Application
    Filed: August 25, 2004
    Publication date: July 12, 2007
    Inventors: Hisashi Narimatsu, Koji Kimata, Toshikazu Yada
  • Chondroitin synthase and nucleic acid encoding the enzyme
    Patent number: 7232676
    Abstract: A human-derived novel chondroitin synthase, which is an enzyme for synthesizing a fundamental backbone of chondroitin and has both glucuronic acid transferring activity and N-acetylgalactosamine transferring activity.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: June 19, 2007
    Assignees: Seikagaku Kogyo Kabushiki Kaisha, National Institute of Advanced Industrial Science and Technology
    Inventors: Hisashi Narimatsu, Koji Kimata, Toshikazu Yada, Takashi Sato, Masanori Goto
  • Chondroitin systhetase and nucleic acid coding for the enzyme
    Publication number: 20060057697
    Abstract: A human-derived novel chondroitin synthase, which is an enzyme for synthesizing a fundamental backbone of chondroitin and has both glucuronic acid transferring activity and N-acetylgalactosamine transferring activity.
    Type: Application
    Filed: May 30, 2003
    Publication date: March 16, 2006
    Applicants: Seikagaku corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Hisashi Narimatsu, Koji Kimata, Toshikazu Yada, Takashi Sato, Masanori Goto
  • Chondroitin synthetase and dna encoding the enzyme
    Publication number: 20060052335
    Abstract: A human-derived novel chondroitin synthase, which is an enzyme for synthesizing a fundamental backbone of chondroitin and has both glucuronic acid transferase activity and N-acetylgalactosamine transferase activity.
    Type: Application
    Filed: May 30, 2003
    Publication date: March 9, 2006
    Inventors: Hisashi Narimatsu, Koji Kimata, Toshikazu Yada, Takashi Sato, Masanori Goto
  • Process for culturing hepatocytes for formation of spheroids
    Patent number: 5624839
    Abstract: Hepatocytes spheroids can be formed by culturing hepatocytes in a culture vessel using a lipid-bound glycosaminoglycan as a culture substrate. Floating spheroids of hepatocytes can be obtained efficiently, which are capable of maintaining liver-specific functions and of keeping the spheroid form stably for a prolonged period of time.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: April 29, 1997
    Assignee: Seikagaku Kogyo Kabushiki Kaisha (Seikagaku Corporation)
    Inventors: Toshikazu Yada, Norio Koide, Koji Kimata