Patents by Inventor Hisao Watanabe

Hisao Watanabe 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).

  • Carboxylic acid derivatives
    Patent number: 4426381
    Abstract: Quinolinecarboxylic acid derivatives, such as compound 7-fluoro-8-(4-methyl-1-piperazinyl)-5-oxo-1,2-dihydro-5H-thiazolo(3,2-a)-q uinoline-4-carboxylic acid, a pharmaceutical composition containing the same and methods of treatment of bacterial and fungal infections using the same.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: January 17, 1984
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Shingo Matsumura, deceased, Masahiro Kise, Masakuni Ozaki, Shinichi Tada, Kenji Kazuno, Hisao Watanabe, Katsutoshi Kunimoto, Masami Tsuda
  • Tetrahydrophthalimides and herbicidal composition
    Patent number: 4420327
    Abstract: .DELTA.'-Tetrahydrophthalimides having a substituted oxy group at 3-position and a halogen atom at 4-position if necessary, a halogen atom at 2-position of phenyl group as N-substituent have excellent herbicidal activity and are useful as selective herbicides.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: December 13, 1983
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Tetsuo Jikihara, Masatsugu Oda, Kazuyuki Ushinohama, Hisao Watanabe, Seiichi Suzuki
  • Acyl derivatives of 2-[3-(2-chloroethyl)-3-nitrosoureido]-2-deoxy-D-glucopyranose
    Patent number: 4211866
    Abstract: Acylated derivatives of 2-[3-(2-chloroethyl)-3-nitrosoureido]-2-deoxy-D-glucopyranose have antitumor activity.
    Type: Grant
    Filed: October 3, 1978
    Date of Patent: July 8, 1980
    Assignees: Nippon Shinyaku Co., Ltd., Takara Shuzo Co., Ltd.
    Inventors: Shingo Matsumura, Masakuni Ozaki, Hisao Watanabe, Hiroyuki Kuroda, Teruya Nakamura, Akira Obayashi
  • Cold trap for electron microscope
    Patent number: 4179605
    Abstract: A specimen anticontamination device for an electron microscope incorporates a cold trap installed outside the magnetic pole pieces of the objective lens. This cold trap effectively absorbs the residual gases which contribute to the specimen contamination, because its position is nearer the residual gas source than the conventional cold trap installed near the specimen and inside the magnetic pole pieces. For this reason, the device is very effective as an anticontamination means particularly in electron microscopes having a narrow objective lens pole piece gap wherein the space available would preclude installation of the conventional anticontamination device.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: December 18, 1979
    Assignee: Nihon Denshi Kabushiki Kaisha
    Inventors: Hisao Watanabe, Terukazu Etoh