Patents by Inventor Tomoharu Nakiri

Tomoharu Nakiri 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: 6771324
    Abstract: It is an object of the present invention to provide equipment, particularly a display, capable of easily corresponding to two or more types of remote controllers (for example, remote controllers of different manufacturers) while restraining cost increases as far as possible. Equipment according to the present invention comprises: initializing means for initializing so as to correspond to any one of plural types of remote controllers; and switching means for switching the initializing means so as to correspond to the remote controller using any one of the plural types of remote controllers. Thereby, the equipment is initialized so as to correspond to any one of the plurality of remote controllers, and it is possible to prevent misoperation due to other remote controllers. Also, by switching the initializing means by using any remote controller, switching can be performed if only a desired remote controller is available.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: August 3, 2004
    Assignees: Hitachi, Ltd., Hitachi Video and Information Systems, Inc.
    Inventors: Toshimitsu Watanabe, Kuninori Matsumi, Tomoharu Nakiri
  • Patent number: 6342929
    Abstract: The projection image display apparatus includes a plurality of image generating sources for generating three primary colors, including red, green, blue image light, respectively, and a projection lens containing a plurality of lens elements provided in correspondence with each of said image generating sources for enlarging/projecting images displayed by the image generating sources onto a screen.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: January 29, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Koji Hirata, Kazunari Nakagawa, Tomoharu Nakiri, Naoyuki Ogura, Chihiro Egawa
  • Patent number: 6115081
    Abstract: The projection image display apparatus includes a plurality of image generating sources for generating three primary colors, including red, green, blue image light, respectively, and a projection lens containing a plurality of lens elements provided in correspondence with each of said image generating sources for enlarging/projecting images displayed by the image generating sources onto a screen. The projection lens corresponding to the red image generating source includes a light transmitter that satisfies the condition: TRS<TRL/3, wherein TRS is the transmittance with respect to a wavelength .lambda. RSmax of sub-peak energy of a spurious component existing in a short-wavelength-sided region rather than a peak energy waveform .lambda. Rmax of a spectral distribution of the red image light, and TRL is the transmittance with respect to a wavelength .lambda. RLmax of sub-peak energy of a spurious component existing in a long-wavelength-sided region rather than the peak energy wavelength .lambda.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: September 5, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Koji Hirata, Kazunari Nakagawa, Tomoharu Nakiri, Naoyuki Ogura, Chihiro Egawa