Patents by Inventor Yasuhiro Torii

Yasuhiro Torii 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: 5383532
    Abstract: A foot pedal locking device for cargo-handling vehicles, for preventing cargo-handling equipment of the vehicle from starting if an operator accidentally steps on a foot pedal when getting off the vehicle. An operating means, when operated by the operator, works to move a restricting means on the basis of a detection signal from a detecting means for detecting the state of utilization of the cargo-handling vehicle, thus locking or unlocking the foot pedal. Furthermore, the foot pedal locking device has a restraining means which can be switched between a restraining position where the operator occupying a seat is restrained and a waiting position where the restraining means does not interfere with the operator when he gets on or off the seat. With the switching operation of this restraining means from the restraining position to the waiting position, a lock control means forcibly operates the restricting means regardless of the operation of the operating means, thereby locking the rotation of the foot pedal.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: January 24, 1995
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Masami Shonai, Yasuhiro Torii, Kohji Iwamura
  • Patent number: 5083808
    Abstract: A draw bar for a towing tractor includes a draw bar bracket mounted on a weight of the towing vehicle, a draw bar pin provided for axial movement in an insertion opening in the draw bar bracket, an actuating lever provided near a driver's seat of the towing tractor, and a link unit interconnecting the actuating lever and the draw bar pin for shifting the draw bar pin on actuation of the actuating lever. The link unit is provided in the weight through an opening formed in the vicinity of the draw bar bracket of the weight and an opening formed in the vicinity of the actuating lever.
    Type: Grant
    Filed: June 3, 1991
    Date of Patent: January 28, 1992
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventor: Yasuhiro Torii
  • Patent number: 4883968
    Abstract: An electron cyclotron resonance ion source for an ion implanter. The source includes an ionization chamber surrounded along its length by an electromagnet. A number of extraction electrodes at an output end of the ionization chamber allow positively charged oxygen ions to pass through apertures in the electrodes. The uniformity of the axially aligned magnetic field in the ionization chamber is extended through the extraction electrode by a magnetically permeable electrode and through use of non-magnetically permeable material to mount others of said electrodes.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: November 28, 1989
    Assignees: Eaton Corporation, Nippon Telegraph and Telephone Corporation
    Inventors: James E. Hipple, Gerald L. Dionne, Yasuhiro Torii, Masaru Shimada, Iwao Watanabe
  • Patent number: 4857809
    Abstract: In a microwave ion source utilizing a microwave and a magnetic field, a microwave introducing window has a multilayer structure of plates with different dielectric constants, a magnetic circuit is arranged to generate a magnetic field having a higher intensity than that defined by ECR (Electron Cyclotron Resonance) conditions so as to form a narrow high-density plasma, an ion extraction electrode has an ion extraction window whose contour falls within a center region of the narrow high-density plasma.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: August 15, 1989
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Yasuhiro Torii, Seitaro Matsuo, Iwao Watanabe, Masaru Shimada
  • Patent number: 4143937
    Abstract: A phase shifter for adding a deterministic phase to an original information to be recorded in hologram. The phase shifter consists of a number of unit cells arranged in a matrix. A set of the unit cells are provided which will cause a certain phase shift to a light passing through each kind of the unit cells so as to distribute the light irradiance of the original information more evenly over the Fourier transformed plane. The invention suggests a solution to make the phase shifter with the unit cells arranged by the deterministic phase distribution.
    Type: Grant
    Filed: November 8, 1977
    Date of Patent: March 13, 1979
    Assignee: Nippon Telegraph and Telephone Public Corporation
    Inventors: Susumu Yonezawa, Yasuhiro Torii, Haruo Ogiwara, Gisaku Nakamura