Patents by Inventor Tetsuya Ito

Tetsuya Ito 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 and system for manufacturing magnetic recording medium
    Patent number: 6296898
    Abstract: To prevent the quality of a magnetic recording medium from deteriorating due to a pressed mark caused by scattered paint tailings or residue of paint tailings when applying magnetic paint to a substrate in manufacturing a magnetic medium. In the step of applying magnetic paint onto a nonmagnetic support (5) in accordance with a gravure coating method, an organic solvent is supplied to the contact portion between a doctor blade (4) set to both ends of a gravure roller (7) and the gravure roller (7).
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: October 2, 2001
    Assignee: Sony Corporation
    Inventor: Tetsuya Ito
  • &bgr;-fructofuranosidase gene
    Patent number: 6284510
    Abstract: A &bgr;-fructofuranosidase gene coding for a protein having an amino acid sequence described in Seq. I.D. No. 1 in the Sequence Listing. The gene enables production of &bgr;-fructofuranosidase on a large scale more easily and less dependently on the productivity of microorganisms than the production by cultivation of the microorganisms. Also, the &bgr;-fructofuranosidase gene is useful for the development of variant enzymes that have increased heat resistance and transfer ratio by means of genetic engineering techniques.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: September 4, 2001
    Assignee: Society for Techno-innovation of Agriculture, Forestry and Fisheries
    Inventors: Tetsuya Ito, Koki Fujita, Kozo Hara, Takashi Tonozuka, Yoshiyuki Sakano
  • Branched cyclodextrins and method for producing them
    Patent number: 5763598
    Abstract: Disclosed are novel branched cyclodextrins having any of an N-acetylglucosamine group, a glucosaminyl group, an N-acetylgalactosaminyl group and a galactosaminyl group as bonded to the hydroxyl group of the cyclodextrin ring by .beta.-bonding therebetween, and their salts. The novel branched cyclodextrins are produced by reacting a solution containing a cyclodextrin and an N-acetylglucosamine or N-acetylgalactosamine with an N-acetylhexosaminidase, and optionally deacetylating the resulting product.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: June 9, 1998
    Assignee: Ensuiko Sugar Refining Co., Ltd.
    Inventors: Kenichi Hamayasu, Tetsuya Ito, Koki Fujita, Kozo Hara, Kyoko Koizumi, Toshiko Tanimoto, Hirofumi Nakano, Sumio Kitahata