Patents by Inventor Takeji Siokawa

Takeji Siokawa 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).

  • Electronic device and multi-pin connector therefor
    Patent number: 6213786
    Abstract: A multi-pin connector has contact pins fixedly soldered into bottomed connection holes which are in desired positions on a printed board, so that the contact pins are arrayed in a desired form without a housing. The multi-pin connector can be manufactured in a short period of time and can have any pitch, any number of pins and any shape.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: April 10, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Kiyoshi Matsui, Takayuki Ono, Kenichi Kasai, Tsutomu Imai, Morio Suzuki, Hideyuki Fukasawa, Mitugu Shirai, Toshitaka Murakawa, Takeji Siokawa, Takeshi Kuroda
  • Multi-pin connector
    Patent number: 6132221
    Abstract: A multi-pin connector for mounting other boards or electronic parts on a main board, has contact pins fixedly soldered into bottomed connection holes which are in desired positions on the main board, so that the contact pins are secured separately and arrayed in a desired form without a housing. The contact pins have contact portions and pin portions, with the pin portions being secured in the connection holes.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: October 17, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Kiyoshi Matsui, Takayuki Ono, Kenichi Kasai, Tsutomu Imai, Morio Suzuki, Hideyuki Fukasawa, Mitugu Shirai, Toshitaka Murakawa, Takeji Siokawa, Takeshi Kuroda
  • Method of making multi-pin connector
    Patent number: 5743009
    Abstract: Ends of contact pins are inserted into bottomed connection holes which are in desired positions on a printed board, so that the contact pins are arrayed in the desired form. By effecting solder reflow in this state, the contact pins are fixedly soldered to the connection holes. A multi-pin connector is thus provided, which can be manufactured with ease in a short period of time and which can have any pitch, any number of pins and any shape.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: April 28, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Kiyoshi Matsui, Takayuki Ono, Kenichi Kasai, Tsutomu Imai, Morio Suzuki, Hideyuki Fukasawa, Mitugu Shirai, Toshitaka Murakawa, Takeji Siokawa, Takeshi Kuroda