Patents by Inventor Kiichi Uchida

Kiichi Uchida 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).

  • Lymphokine activated killer suppressive factor (LAKSF), process for producing it and immunosuppressive agent comprising it
    Patent number: 5091511
    Abstract: Lymphokine activated killer suppressive factor (LAKSF) and a process for producing the LAKSF by cultivating human mono-cytic cells for alveolar macrophages activated by a stimulator to produce LAKSF and harvesting it. The LAKSF has a LAK induction suppressive activity and an immunosuppressive effect and thus the LAKSF is useful as a medicine.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: February 25, 1992
    Assignee: Sapporo Breweries Limited
    Inventors: Saburo Sone, Masanobu Munekata, Akito Nakamura, Kiichi Uchida, Kazumaro Seto
  • Polysaccharide RDP substance
    Patent number: 4764507
    Abstract: A polysaccharide RDP substance having the ultraviolet absorption spectrum depicted in FIG. 1, the infrared absorption spectrum depicted in FIG. 2 and the .sup.13 C-NMR spectrum depicted in FIG. 3 is obtained from rice bran by extraction.
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: August 16, 1988
    Assignees: Sapparo Breweries Limited, Daicel Chemical Industries, Ltd., Etsuo Ito
    Inventors: Suguru Takeo, Hisao Kado, Nobuhiro Watanabe, Kiichi Uchida, Yoshitada Mori
  • Polysaccharide RON substance
    Patent number: 4762825
    Abstract: A polysaccharide RON substance having the ultraviolet absorption spectrum depicted in FIG. 1, the infrared absorption spectrum depicted in FIG. 2 and the .sup.13 C-NMR spectrum depicted in FIG. 3 is obtained from rice bran by extraction and purification; and pharmacological composition containing said RON substance.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: August 9, 1988
    Assignees: Sapporo Breweries Limited, Daicel Chemical Industries, Ltd., Etsuo Ito
    Inventors: Suguru Takeo, Hisao Yamamoto, Hisao Kado, Nobuhiro Watanabe, Minoru Kamimura, Kiichi Uchida, Yoshitada Mori
  • Process for the production of polysaccharide RBS substance
    Patent number: 4366308
    Abstract: Polysaccharide RBS substance is obtained from rice bran by extraction it with hot water. RBS substance is utilized for antitumor agent.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: December 28, 1982
    Assignees: Sapporo Breweries Limited, Etsuo Ito, Daicel Chemical Industries, Ltd.
    Inventors: Eichi Soma, Kohei Kobayashi, Takuro Karakawa, Shigeyoshi Kato, Kiichi Uchida
  • Polysaccharide RBS substance and antitumor agent containing same
    Patent number: 4357323
    Abstract: A polysaccharide RBS substance having the ultraviolet absorption spectrum depicted in FIG. 1 and the infrared absorption spectrum depicited in FIG. 2 is obtained from rice bran by extraction with hot water. These substances have been tested for anti-tumor activity against Sarcoma 180 ascites tumor and against Ehrlich ascites tumor and were determined to have anti-tumor activity against these tested tumors.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: November 2, 1982
    Assignees: Sapporo Breweries Limited, Etsuo Ito, Daicel Chemical Industries, Ltd.
    Inventors: Eichi Soma, Kohei Kobayashi, Takuro Karakawa, Shigeyoshi Kato, Kiichi Uchida