Patents by Inventor Masatake Kokado

Masatake Kokado 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).

  • Fabrication method for transformers with an amorphous core
    Patent number: 5226222
    Abstract: A method for fabricating transformers each having a core made from a lamination body of strips made of an amorphous magnetic alloy comprises the steps of forming a ring-like lamination body using a grindstone cutter and a gas coolant to obtain a developed lamination body, shaping the developed lamination into a substantially rectangular core, assembling windings with the core using a sliding tool for inserting leg portions of the core into windows of windings, covering the core with a core cover and mounting a grounding member so as to ground the core to the ground.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: July 13, 1993
    Assignee: Daihen Corporation
    Inventors: Katsumi Hanaoka, Masatake Hirai, Masatake Kokado, Takeshi Uchikura, Nobuyuki Sumida, Syoichi Shii, Koichi Akimoto, Tadanori Matsubayashi, Toshio Fujiwara, Yasuo Yamamoto, deceased, by Michiko Yamamoto, heiress, Masako Sakamoto, heiress, Kyoko Kan, heiress
  • Method of manufacturing wound transformer cores
    Patent number: 4972573
    Abstract: A method for manufacturing rectangular wound cores including a step of forming at least one developed lamination body by cutting off at least one ring-like lamination body, a step for applying adhesive agent to one of cut ends of each developed lamination body, a step forming lamination blocks each of which is comprised of plural lamination units shifted in the length-wise direction by a predetermined distance and a step for jointing both ends of each of lamination unit in an overlapping state by winding each lamination block around a shaping bobbin.
    Type: Grant
    Filed: July 26, 1989
    Date of Patent: November 27, 1990
    Assignee: Daihen Corporation
    Inventors: Yasuo Yamamoto, Katsumi Hanaoka, Masatake Hirai, Nobuyuki Sumida, Masatake Kokado