Patents by Inventor Yoshiaki Nakagawa

Yoshiaki Nakagawa 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).

  • Disk changer having a disk tray moved by a pair of slidable, parallel racks
    Patent number: 5377174
    Abstract: The disk changer comprises a first rack member supporting on its one end side a latch pawl adapted to latch a pin, and a second rack member supporting on its other end side a latch pawl adapted to latch the pin, the first and second rack members being slidably supported in parallel with each other. After the first rack member transfers a tray by a predetermined distance, latching of the tray thereon is switched over from the first rack member to the second rack member. The tray is then further transferred by the second rack member.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: December 27, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiaki Nakagawa, Takashi Suzuki, Yasuyoshi Kagohashi, Seiji Nakama, Hajime Daigaku, Tukasa Nakayama, Shinji Sekiya
  • Elongation control system
    Patent number: 4760723
    Abstract: An elongation control system for controlling the elongation of a work to be rolled by a rolling mill applied to a continuous thin plate rolling equipment, through control of the rolling load of a press down device in the mill and control of tension on the work, i.e., control of the rates of feed of the work by feeders. The press-down device for pressing down a work roll is controlled based on the difference between the actual elongation detected by an elongation detector and a preset reference elongation.
    Type: Grant
    Filed: July 8, 1986
    Date of Patent: August 2, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Yoshiaki Nakagawa