Patents by Inventor Jun Kubokawa

Jun Kubokawa 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).

  • Flat cooling structure of integrated circuit
    Patent number: 5023695
    Abstract: A circuit assembly with circulation of coolant. A plurality of chips of integrated circuit are arranged on a substrate separately from each other in rows and columns. A circulating unit disposed on the substrate and having a planar shape circulates coolant therethrough. The circulating unit has within its bottom side a plurality of cells arranged in rows and columns correspondingly to the plurality of chips. Each individual cell is thermally connected to the corresponding individual chip so as to receive therefrom heat generated thereby. The circulating unit includes a distributor for distributing to the respective cells the circulated coolant effective to absorb the heat received in the respective cells.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: June 11, 1991
    Assignee: NEC Corporation
    Inventors: Kazuhiko Umezawa, Toshiaki Komatsu, Jun Kubokawa
  • Computer
    Patent number: D456402
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: April 30, 2002
    Assignee: NEC Corporation
    Inventors: Hideo Sue, Toshiaki Komatsu, Jun Kubokawa, Junya Ohno, Muneyoshi Nikuni
  • Computer
    Patent number: D484501
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: December 30, 2003
    Assignee: NEC Corporation
    Inventors: Kazuhiko Umezawa, Jun Kubokawa, Youichi Higuchi, Yoshin Segawa
  • Computer
    Patent number: D484502
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: December 30, 2003
    Assignee: NEC Corporation
    Inventors: Kazuhiko Umezawa, Jun Kubokawa, Youichi Higuchi, Yoshinao Segawa
  • Computer
    Patent number: D484877
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: January 6, 2004
    Assignee: NEC Corporation
    Inventors: Kazuhiko Umezawa, Jun Kubokawa, Youichi Higuchi, Yoshinao Segawa
  • Computer
    Patent number: D419536
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: January 25, 2000
    Assignee: NEC Corporation
    Inventors: Hiroyuki Tsuzuki, Masatsugu Murakami, Isao Takahashi, Toshiaki Komatsu, Jun Kubokawa, Takuji Katsutani