Patents by Inventor Masaru Honma

Masaru Honma 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).

  • Coin discriminating apparatus
    Patent number: 5458225
    Abstract: The present invention relates to a coin discriminating apparatus for discriminating the thickness, material, diameter, and the like of a coin at high precision. A transmission coil (11) receives an AC signal generated by an AC signal generating unit (24) and applies an alternating magnetic field to a coin (C) to be discriminated. A reception coil (12) detects an electromotive force induced when the the transmission coil (11) applies the alternating magnetic field on the coin to be discriminated. A detection signal generating unit (27) generates a detection signal having a predetermined phase with respect to the AC signal generated by the AC signal generating unit (24). A phase detecting unit (26) phase-detects the electromotive force detected by the reception coil (12) in accordance with the detection signal generated by the detection signal generating unit.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: October 17, 1995
    Assignee: Anritsu Corporation
    Inventors: Takahasi Iwamoto, Ken Shioiri, Yoshifumi Takahashi, Noriyuki Kodama, Shintaro Inagaki, Masaru Honma
  • Coin diameter discriminating apparatus
    Patent number: 5452785
    Abstract: The present invention relates to a coin discriminating apparatus for discriminating the thickness, material, diameter, and the like of a coin at high precision. A transmission coil (11) receives an AC signal generated by an AC signal generating unit (24) and applies an alternating magnetic field to a coin (C) to be discriminated. A reception coil (12) detects an electromotive force induced when the the transmission coil (11) applies the alternating magnetic field on the coin to be discriminated. A detection signal generating unit (27) generates a detection signal having a predetermined phase with respect to the AC signal generated by the AC signal generating unit (24). A phase detecting unit (26) phase-detects the electromotive force detected by the reception coil (12) in accordance with the detection signal generated by the detection signal generating unit.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: September 26, 1995
    Assignee: Anritsu Corporation
    Inventors: Takahisa Iwamoto, Ken Shioiri, Yoshifumi Takahashi, Noriyuki Kodama, Shintaro Inagaki, Masaru Honma
  • Colored styrenic resin composition
    Patent number: 5434204
    Abstract: A colored styrenic resin composition comprises 100 parts by weight of a styrenic resin, 0.1 to 5 parts by weight of titanium oxide and 0.05 to 2.5 parts by weight of an organo-tin compound and in which the amount of the organo-tin compound is not less than 10% by weight on the basis of the amount of the titanium oxide. The resin composition ensures the production of injection-molded articles free of black streaks and, therefore, the articles formed from the resin composition of the invention have high commercial value. The colored styrenic resin composition is useful as a material for the production of housings of, for example, a variety of electric appliances and office machinery and equipment as well as miscellaneous goods.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: July 18, 1995
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Masato Takaku, Mune Iwamoto, Masaru Honma, Atsushi Hashimoto