Patents by Inventor Kazunori Hatano

Kazunori Hatano 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).

  • DNA Fragment encoding acylamino acid racemase
    Patent number: 5525501
    Abstract: The present invention relates to a DNA fragment containing a gene encoding acylamino acid racemase. The acylamino acid racemase can be produced industrially at high efficiency using the DNA fragment.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: June 11, 1996
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Masaharu Tokuyama, Kazunori Hatano, Kazuo Nakahama, Takeshi Takahashi
  • Acylamino acid racemase, production and use thereof
    Patent number: 4981799
    Abstract: The present invention relates to acylamino acid racemase, production and use thereof.The acylamino acid racemase of the present invention racemizes optically active N-acyl-.alpha.-aminocarboxylic acid alone at pH values around the neutral level at a normal temperature under normal pressure in the presence of optical active amino acid; its use in combination with D- or L-aminoacylase enables the production of optically active D- or L-.alpha.-amino acid from DL-acyl-.alpha.-aminocarboxylic acid at a high level of efficiency.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: January 1, 1991
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Takeshi Takahashi, Kazunori Hatano
  • Method for the production of antibiotic C-15003 P-3
    Patent number: 4356265
    Abstract: Antibiotic C-15003 P-3 is specifically produced by cultivating a microorganism belonging to the genus Nocardia in a culture medium to which isobutyl aldehyde, isobutyl alcohol or a fatty acid ester of isobutyl alcohol is added.The Antibiotic C-15003 P-3 is useful as an antifungal, antiprotozoan or antitumor agent.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: October 26, 1982
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Kazunori Hatano, Masanari Nakamichi, Shun-ichi Akiyama
  • Method for producing antibiotic C-15003 P-4
    Patent number: 4229533
    Abstract: A novel Antibiotic C-15003 P-4 is specifically produced by cultivating a microorganism of the genus Nocardia in a culture medium containing leucine and/or its derivatives.The Antibiotic C-15003 P-4 is useful as an antifungal agent, antiprotozoan agent and antitumor agent.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: October 21, 1980
    Assignee: Takeca Chemical Industries, Ltd.
    Inventors: Eiji Higashide, Kazunori Hatano, Mitsuko Asai
  • Method for producing antibiotic C-15003 P-3
    Patent number: 4228239
    Abstract: A novel Antibiotic C-15003 P-3 is specifically produced by cultivating a microorganism of the genus Nocardia in a culture medium containing valine or isobutyric acid and/or their derivatives.The Antibiotic C-15003 P-3 is useful as an antifungal, antiprotozoan and antitumor agent.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: October 14, 1980
    Assignee: Takeda Chemical Industries, Ltd
    Inventors: Eiji Higashide, Kazunori Hatano, Mitsuko Asai
  • Antibiotic C-11924 F-1
    Patent number: 4189472
    Abstract: A novel Antibiotic C-11924 F-1 is produced by cultivating a microorganism belonging to the genus Streptoverticillium and capable of producing Antibiotic C-11924 F-1 in a culture medium, causing the microorganism to accumulate Antibiotic C-11924 F-1 in the cultured broth and recovering the same therefrom.Antibiotic C-11924 F-1 is useful for a germicide or disinfectant.
    Type: Grant
    Filed: January 17, 1978
    Date of Patent: February 19, 1980
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Toru Hasegawa, Mitsuko Asai, Kazunori Hatano
  • 7-Methoxycephalosporin derivatives
    Patent number: 4017485
    Abstract: A novel antibiotic C-2801-X represented by the formula ##STR1## is produced by cultivating a microorganism of the genus Streptomyces. The compound is useful in the treatment of mammals, including human beings, suffering from urinary tract infections, respiratory tract infections, colitis, septicema, purulent diseases, etc.
    Type: Grant
    Filed: September 11, 1974
    Date of Patent: April 12, 1977
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Toru Hasegawa, Kazunori Hatano, Hiroshi Fukase, Hidesuke Iwasaki