Patents by Inventor Takeshi Yamagiwa

Takeshi Yamagiwa 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).

  • Publication number: 20200356926
    Abstract: A personnel evaluation method and system is provided which require a few steps for personnel evaluation and objectively evaluate personnel. In such a system, an evaluator simply inputs or selects in the evaluation item column whether a subject (an evaluatee) is rated higher or lower than the evaluator oneself as a reference, and thus a only a few steps are required for evaluation. And then it is possible to determine whether the subject has a high rating or a low rating by calculating a mean rating of the subject with obtaining such ratings from a plurality of evaluators.
    Type: Application
    Filed: December 17, 2018
    Publication date: November 12, 2020
    Inventors: Takeshi YAMAGIWA, Ayako YAMAGIWA
  • Patent number: 5322038
    Abstract: A suction system for a V-type engine includes branch pipes that cross parallel to each other for communicating with cylinders, two aggregate portions disposed inside center lines of opposed banks for aggregating the branch pipes which communicate with the cylinders without regard to the ignition order, two guide pipes connected to the aggregate portions in centers thereof, and a communicating pipe disposed over the branch pipes for communicating with the aggregate portions.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: June 21, 1994
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Suehiro Urabe, Takeshi Yamagiwa, Isaya Matsuo, Toshiki Ohara
  • Patent number: 5231366
    Abstract: A superconducting magnetic field generating apparatus, and coil, a superconducting wire, a method of producing a coil and a method of connecting a superconducting wire which are suitable for such a superconducting magnetic field generating apparatus are disclosed. The superconducting magnetic field generating apparatus has a coil of a wound superconducting wire which is composed of superconducting wires with the end portions thereof connected with each other. Each of the superconducting wires is composed of a plurality of superconducting material wires embedded in a stabilizing member. The group of superconducting material wires is embedded at the connecting portion in a state in which the superconducting material wires are densely gathered to the central portion of the stabilizing member and the superconducting material wires are directly in contact with each other.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: July 27, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Haramaki, Mituo Nakamura, Takao Funamoto, Masahiko Sakamoto, Teruhiro Takizawa, Takeshi Yamagiwa