Patents by Inventor Michio Imada

Michio Imada 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).

  • Patent number: 4391497
    Abstract: An aperture stop for microscope condensers mounted to the lower part of a microscope condenser and comprising a fixed member and stop ring, the fixed member being provided with an index mark, the stop ring being provided with color marks of same colors as color bands provided to microscope objectives, the aperture stop being arranged that an aperture diameter corresponding to the numerical aperture of the objective to be used is obtained when one of the color marks having the same color as the color band of the objective to be used is set to the index mark, the aperture stop thus assuring simple and correct operation.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: July 5, 1983
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Michio Imada, Masayuki Naito
  • Patent number: D255566
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: June 24, 1980
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Michio Imada
  • Patent number: D456036
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: April 23, 2002
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tatsuya Suzuki, Michio Imada
  • Patent number: D261659
    Type: Grant
    Filed: February 7, 1979
    Date of Patent: November 3, 1981
    Assignee: Olympus Optical Company Ltd.
    Inventor: Michio Imada
  • Patent number: D262375
    Type: Grant
    Filed: October 4, 1978
    Date of Patent: December 22, 1981
    Assignee: Olympus Optical Company Ltd.
    Inventors: Michio Imada, Kyo Toyoguchi
  • Patent number: D268269
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: March 15, 1983
    Assignee: Olympus Optical Company Ltd.
    Inventor: Michio Imada
  • Patent number: D268538
    Type: Grant
    Filed: September 19, 1980
    Date of Patent: April 5, 1983
    Assignee: Olympus Optical Company Ltd.
    Inventor: Michio Imada
  • Patent number: D465800
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: November 19, 2002
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tatsuya Suzuki, Michio Imada
  • Patent number: D276573
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: December 4, 1984
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Kazuo Yamamoto, Michio Imada
  • Patent number: D277405
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: January 29, 1985
    Assignee: Olympus Optical Company, Ltd.
    Inventor: Michio Imada
  • Patent number: D277406
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: January 29, 1985
    Assignee: Olympus Optical Company, Ltd.
    Inventor: Michio Imada
  • Patent number: D277407
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: January 29, 1985
    Assignee: Olympus Optical Company, Ltd.
    Inventor: Michio Imada
  • Patent number: D280634
    Type: Grant
    Filed: July 7, 1983
    Date of Patent: September 17, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventors: Michio Imada, Kyo Toyoguchi
  • Patent number: D280906
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: October 8, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Michio Imada
  • Patent number: D280907
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: October 8, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Michio Imada
  • Patent number: D284197
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: June 10, 1986
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Kazuo Yamamoto, Kazuhiko Watarai, Michio Imada
  • Patent number: D310231
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: August 28, 1990
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Michio Imada, Nobuyoshi Yazawa, Takeshi Asaka