Patents by Inventor Masatake Uehara

Masatake Uehara 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).

  • Ceramic insulation coated electric wire self-fusing ceramic insulation coated electric wire coating composition and coil and voices coil for speaker
    Patent number: 6867374
    Abstract: A coating composition containing a zirconium compound and a silicon compound is applied on a conductor 1 and baked to develop a ceramic insulating coating 2. A bonding agent made by dissolving a polyamide resin or a polyimide resin into an organic agent is then applied on the ceramic insulating coating 2 and baked to develop a fusible coating 3. This produces a self-fusible ceramic insulation coated wire which can retain the favorable properties of coil at high temperatures. Also, it can be used as windings such as high-power loudspeaker voice coils.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: March 15, 2005
    Assignees: Totoku Electric Co., Ltd., Tohoku Pioneer Corp., Kabushiki Kaisya Nippan Kenkyujo
    Inventors: Toshihiro Ishigaki, Yoshitaka Kobayashi, Tomoyuki Shimada, Masatake Uehara
  • Ceramic isulation coated electric wire self-fusing ceramic insulation coated electric wire coating composition and coil and voices coil for speaker
    Publication number: 20040076842
    Abstract: A coating composition containing a zirconium compound and a silicon compound is applied on a conductor 1 and baked to develop a ceramic insulating coating 2. A bonding agent made by dissolving a polyamide resin or a polyimide resin into an organic agent is then applied on the ceramic insulating coating 2 and baked to develop a fusible coating 3. This produces a self-fusible ceramic insulation coated wire which can retain the favorable properties of coil at high temperatures. Also, it can be used as windings such as high-power loudspeaker voice coils.
    Type: Application
    Filed: August 21, 2003
    Publication date: April 22, 2004
    Inventors: Toshihiro Ishigaki, Yoshitaka Kobayashi, Tomoyuki Shimada, Masatake Uehara