Patents by Inventor Yoshisuke Ohtsuru

Yoshisuke Ohtsuru 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: 6337724
    Abstract: A plurality of liquid crystal modules is vertically and horizontally arranged, each of which is supplied light by a light source via optical fibers. A screen can be wound up at a cabinet. An image from each of the plurality of liquid crystal modules does not interfere one another because a light shielding board is installed.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: January 8, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshio Itoh, Haruhiko Nagai, Tsunehiro Imamura, Takayoshi Semasa, Kenji Tatsumi, Shuji Iwata, Hiroshi Mitsuda, Yasuhito Myoi, Toshimasa Tomoda, Fumio Suzuki, Yoshisuke Ohtsuru
  • Patent number: 5864374
    Abstract: A dichroic mirror for reflecting red light for optical separating and a dichroic mirror for reflecting red light for optical synthesizing are installed on the same plane in an image generating apparatus of the present invention. In addition, a dichroic mirror for reflecting blue light for optical separating and a dichroic mirror for reflecting blue light for optical synthesizing are installed on the same plane. Accordingly, a compact configuration can be realized. Since a main reflecting mirror is a rotating elliptic mirror and a lamp is located on a focus or around the focus, a lighting equipment which irradiates conic luminous flux can be realized.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: January 26, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshio Ito, Yoshisuke Ohtsuru, Hisao Koizumi, Takio Okuda, Yasuhito Myoi, Toshimasa Tomoda, Masaaki Tanaka, Teruo Miyamoto, Toyomi Ohshige, Toshiyuki Yoneda, Fumio Suzuki, Kou Nishino, Kazuaki Matoba, Masanori Kojima, Hiroshi Kawamura, Kenji Kimura, Kenji Samejima, Naoki Kawamoto, Miki Fukada, Haruhiko Nagai, Kenji Maeno
  • Patent number: 5801745
    Abstract: Apparatus and method for performing a photographic printing in which photographic signals are separated into a black signal and a chrominance signal and gradating is performed on each one of the black signal and the chrominance signal.
    Type: Grant
    Filed: June 21, 1995
    Date of Patent: September 1, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Ryukichi Wada, Fumio Suzuki, Yoshisuke Ohtsuru
  • Patent number: 5663775
    Abstract: In a video projector, first and second light sources respectively emit first and second collimated, white light beam, a luminance optical modulation means modulates the first light beam in accordance with a luminance signal of an input video signal, a chrominance optical modulation means modulates the second light beam in accordance with a chrominance signal of the input video signal, a first projecting means projects the first light beam having been modulated by the luminance optical modulation means onto a projection screen to form a projected luminance image on the screen, and a second projecting means projects the second light beam having been modulated by the chrominance optical modulation means onto the projection screen to form a projected chrominance image on the screen. The projected luminance image and the projected chrominance image are superimposed with each other on the screen to form a full color image.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: September 2, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroshi Kawamura, Hisao Koizumi, Yoshisuke Ohtsuru
  • Patent number: 5550597
    Abstract: When an input component image signal is inputted in a signal processing step, a high-frequency signal emphasis processing like HPF is performed with respect to a luminance signal and a processing like LPF with replenishment of the low-midrange frequency signal is performed in an LPF step and a color signal step with respect to color difference signals. Then, the luminance signal and color difference signals are outputted by prescribed clock pulses. The clock pulse of the color difference signals may be set lower than the clock pulse of the luminance signal according to the condition of the image. Processed as above, a new component image signal (a luminance signal Y and any combination of color difference signals U and V, V and W, W and U) is generated from a conventional component image signal (Y and U, V, W) without loss in image information or image quality.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: August 27, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Ryukichi Wada, Fumio Suzuki, Yoshisuke Ohtsuru