Patents by Inventor Toshiyuki Edakawa

Toshiyuki Edakawa 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: 5457602
    Abstract: A data processing apparatus comprising a disk unit, a power supply unit, at least one printed circuit board, a heat-exhaust fan, and a box accommodating the disk unit, the power supply unit, the printed circuit board, the heat-exhaust fan. Both the depth and height of the box are larger than the width and has first and second side surfaces defined by the depth and height, bottom and top surfaces defined by the depth and width, and front and rear surfaces defined the height and width. The disk unit and the power supply unit are disposed adjacent to the first side surface. The printed circuit board is disposed adjacent to the second side surface. The disk unit is disposed on the front surface, and the power supply unit is disposed on the rear surface. The apparatus is supported by a first leg and a second leg. Cooling air is exhausted through the first leg which includes a cut-out which communicates with a hollow portion.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: October 10, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Kimura, Takashi Maruyama, Nobukazu Kondo, Hiroaki Aotsu, Michikazu Isono, Shoji Matsui, Toshiyuki Edakawa, Sadao Nakatsuka, Toshio Shibata, Mitsuji Suzuki, Yoshio Kakihi, Chihiro Tsuchiya, Tetuya Fukunaga, Takao Ohsawa, Noriyoshi Ogura
  • Patent number: D413626
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: September 7, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Kiyotaka Izawa, Noriyoshi Ogura, Higashihara Tohru, Toshiyuki Edakawa, Toru Takahashi, Isamu Kamikawauchi, Hiroaki Nishiuchi, Tetsuya Kouno