Patents by Inventor Seiko Miura

Seiko Miura 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 for controlling gene expression
    Patent number: 5622840
    Abstract: A lactose repressor protein wherein at least one amino acid at the position of 94, 241, 265 or 300 in the wild lactose repressor is replaced with an amino acid other than that of the wild lactose repressor, and the use thereof.The present mutant lactose repressor represses the expression of a desired gene at 30.degree. C. or lower temperature, and induces the expression of a desired gene at 37.degree. C. or higher temperature, and therefor can control the expression by change of a culture temperature without using an expensive inducer such as IPTG.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: April 22, 1997
    Assignee: Suntory Limited
    Inventors: Masayuki Yabuta, Seiko Miura, Kazuhiro Ohsuye
  • Tablets having clear impressed marks and method for making same
    Patent number: 5002775
    Abstract: Disclosed are tablets having clear marks including letters, figures and the like which are impressed thereon wherein a material different in color tone from the portion other than the mark portion is deposited in the impressed valley portion and if necessary, these tablets are further applied with a coating and a method for producing the tablets.
    Type: Grant
    Filed: March 4, 1983
    Date of Patent: March 26, 1991
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kazutoshi Toya, Nobuo Uchiyama, Seiko Miura, Takayoshi Mitsunaga, Hisao Tobiki
  • Method for preparing urokinase injection
    Patent number: 4244943
    Abstract: A method for preparing a stable urokinase injection by the liophilization of urokinase which comprises liophilizing an aqueous solution containing urokinase, human serum albumin and one or more amino acid compounds selected from polar amino acids and salt thereof. The urokinase injection obtained according to this method is excellent in the storing stability as compared with conventional urokinase preparations for injection.
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: January 13, 1981
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshiya Yamahira, Keiji Fujioka, Yoshiko Okuzawa, Seiko Miura, Shigeji Sato
  • Process for producing light-colored clear petroleum resins
    Patent number: 4156762
    Abstract: In the production of petroleum resins by polymerizing an unsaturated hydrocarbon-containing fraction having a boiling point ranging from -20.degree. to 200.degree. C. at -50.degree. to 100.degree. C., an improvement for producing light-colored clear petroleum resins which comprises using an aluminum chloride/fatty acid ester/aromatic hydrocarbon complex solution.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: May 29, 1979
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ken-ichi Kudo, Yoshihiko Kitagawa, Hideyuki Kuribayashi, Seiko Miura