Patents by Inventor Hidefusa Takahara

Hidefusa Takahara 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).

  • Wire and cable for use in robot
    Patent number: 6103976
    Abstract: A wire for use in robot including a conductor of metallic fiber-reinforced copper matrix composite whose plastic strain to rupture is substantially less than 0.2%. A plurality of conductors form a twisted wire (2). An insulation member (4) is coated on the twisted wire (2) to form a coated wire (6). The conductivity of the conductor is greater than 70% IACS and the tensile strength of the conductor is greater than 100 Kg/mm.sup.2. The metallic fiber-reinforced copper matrix composite is in-situ metallic fiber-reinforced copper matrix composite drawn with a total reduction in sectional area of 99.99% or more.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: August 15, 2000
    Assignee: Yoshinogawa Electric Wire & Cable Co., Ltd.
    Inventors: Shigeru Kobayashi, Shuzo Suzuoka, Ryuji Ninomiya, Hidefusa Takahara
  • Superconducting magnetic shield
    Patent number: 5418512
    Abstract: This invention provides a superconducting magnetic shield and a magnetic shielding apparatus including the same, thereby accurately measuring an extremely weak magnetic field such an magnetoencephalographic waves by reducing the influence of magnetic field of the earth or magnetic noises.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: May 23, 1995
    Assignees: Mitsui Kinzoku Kogyo Kabushiki Shisha, Rikagaku Kenkyusho
    Inventors: Hiroshi Ohta, Masakazu Aono, Kazuhiko Kato, Kazutomo Hoshino, Hidefusa Takahara, Tomonobu Nakayama, Eiichi Sudoh
  • Superconducting magnetic shield
    Patent number: 5187327
    Abstract: This invention provides a superconducting magnetic shield and a magnetic shielding apparatus including the same, thereby accurately measuring an extremely weak magnetic field such as magnetoencephalographic waves by reducing the influence of magnetic field of the earth or magnetic noises.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: February 16, 1993
    Assignees: Mitsui Kinzoku Kogyo Kabushiki Kaisha, Rikagaku Kenkyusho
    Inventors: Hiroshi Ohta, Masakazu Aono, Kazuhiko Kato, Kazutomo Hoshino, Hidefusa Takahara, Tomonobu Nakayama, Eiichi Sudoh
  • Method for production of bi-containing superconducting ceramics laminates
    Patent number: 5096878
    Abstract: A method for making superconductive ceramics laminates comprises forming a thick film of a composite oxide comprising bismuth, strontium, calcium, copper and oxygen on a flat plane of a substrate, and orienting and crystallizing the thus formed film by heat treatment to cause the c-axis of composite oxide crystals to be substantially perpendicular to said flat plane of said substrate. An intermediate layer formed of a noble metal, MgO, SrTiO.sub.3, yttria-stabilized zirconia or an oxide of a superconductive ceramics-constituting element may be interposed between the film and the substrate.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: March 17, 1992
    Assignees: Mitsui Kinzoku Kogyo Kabushiki Kaisha, National Research Institute for Metals, Science and Technology Agency
    Inventors: Kazutomo Hoshino, Shigeru Yamazaki, Hidefusa Takahara, Masao Fukutomi