Patents by Inventor Hisaakira Imaizumi

Hisaakira Imaizumi 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: 5921088
    Abstract: There is provided an air conditioning apparatus including an air duct and provided therein with a blower, a heater, a humidifier and an air cooling dehumidifier comprised of an air-fluid heat exchanger,characterized in that:the said air cooling dehumidifier is disposed at a site that is shifted transversely from an air blowing outlet of the said air duct.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: July 13, 1999
    Assignee: Komatsu Ltd.
    Inventors: Hisaakira Imaizumi, Kanichi Kadotani, Bunji Hayakashi, Tetsuo Syakushi, Toshihiko Matsumoto, Genichiro Watanabe, Toshihide Imamura
  • Patent number: 5701950
    Abstract: There is provided a water feed device for humidification, comprising: an outflow reservoir that is disposed above a humidifier for feeding water into the humidifier by way of a permeation and that is provided with an overflow dam for maintaining a level of the water in the outflow reservoir substantially constant; an inflow reservoir that is disposed upwards of the outflow reservoir and that is provided with a flow inlet; a partition plate that is disposed between the inflow reservoir and the outflow reservoir; and a plurality of drip feed members which are provided in the partition plate for allowing the water in the inflow reservoir to drop by gravity in a form of droplets into the outflow reservoir.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: December 30, 1997
    Assignee: Komatsu Ltd.
    Inventors: Toshihide Imamura, Kanichi Kadotani, Bunji Hayakashi, Hisaakira Imaizumi, Tetsuo Shakushi, Toshihiko Matsumoto, Genichiro Watanabe
  • Patent number: 5609296
    Abstract: There is provided a water feed device for humidification, comprising: an outflow reservoir that is disposed above a humidifier for feeding water into the humidifier by way of a permeation and that is provided with an overflow dam for maintaining a level of the water in the outflow reservoir substantially constant; an inflow reservoir that is disposed upwards of the outflow reservoir and that is provided with a flow inlet; a partition plate that is disposed between the inflow reservoir and the outflow reservoir; and a plurality of drip feed members which are provided in the partition plate for allowing the water in the inflow reservoir to drop by gravity in a form of droplets into the outflow reservoir.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: March 11, 1997
    Assignee: Komatsu, Ltd.
    Inventors: Toshihide Imamura, Kanichi Kadotani, Bunji Hayakashi, Hisaakira Imaizumi, Tetsuo Shakushi, Toshihiko Matsumoto, Genichiro Watanabe
  • Patent number: 4794634
    Abstract: The data input device comprises a tablet portion made of a two-dimensional position-sensitive photodetector and a planar display element laid one on the other, and a light emitting pen forming a light spot on a light-receiving surface of the position-sensitive photodetector. The locus of the movement of the light emitting pen is displayed on the surface of the planar display element at correspond positions in accordance with the output of the two-dimensional position-sensitive photodetector, and the contents of the display provided on the planar displaying element are allowed to be delivered for subsequent processings.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: December 27, 1988
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Shigenori Torihata, Hisaakira Imaizumi, Toru Suzuki, Tomoo Matsuda, Masatake Hirooka, Yokichi Nishi, Mitsuo Hosoi, Naoya Tsurumaki, Yukitaka Takitani
  • Patent number: 4761547
    Abstract: The position detector comprises a semiconductor layer of i type amorphous silicon layer and a P type amorphous silicon layer is formed on one surface thereof and an N type amorphous layer is formed on the opposite surface. A transparent resistance layer is formed on one surface of the semiconductor layer. Collector electrodes are provided at the sides of the resistance layer for deriving out a position signal.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: August 2, 1988
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Shigenori Torihata, Kazuto Togino, Akira Okamoto, Haruo Hashimoto, Yukitaka Takitani, Hisaakira Imaizumi, Hiroshi Miyata