Patents by Inventor Isao Kariya

Isao Kariya 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).

  • Multistage Oil Seal For Machine Tool Motor
    Publication number: 20050151449
    Abstract: A multistage oil seal (4) includes a plurality of lips (7a, 7b, 7c) in a plurality of stages disposed around a motor shaft (1) of a machine tool along the axis of the motor shaft to protect internal members of the motor from the cutting fluid. All or at least two of the lips (7a, 7b, 7c) in the plurality of stages are formed from different materials.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 14, 2005
    Applicant: FANUC LTD
    Inventors: Tomonaga Yamamoto, Isao Kariya
  • Motor equipped with a coil temperature sensing element
    Patent number: 6153954
    Abstract: A temperature sensing element mounted using a guide hole formed in the housing of a motor. The mounting of the temperature sensing element is carried out without additional processing to a coil mounted on a stator, enabling automated mounting of the temperature sensing element. Further, the mounting location of the temperature sensing element is fixed by the location of the guide hole, so that positioning of the temperature sensing element is made easier, and stable temperature sensing is made possible.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: November 28, 2000
    Assignee: Fanuc Ltd.
    Inventors: Hiroyuki Uchida, Isao Kariya
  • Oldham coupling having grooves with elastic wall portions
    Patent number: 5226852
    Abstract: Projections (16, 18) formed on shafts (10, 12) and received in grooves (20a, 20b) of an intermediate disk (14) to form an Oldham coupling, in general, perform a small sliding movement relative to the intermediate disk (14), and thus the projections (16, 18) and the side surfaces of the grooves (20a, 20b) are abraded to cause backlash to appear between the corresponding surfaces. This backlash makes an accurate transmission of the rotation of one shaft to the other impossible.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: July 13, 1993
    Assignee: Fanuc Ltd.
    Inventors: Eiki Asaba, Isao Kariya