Patents by Inventor Yoshihiro Kumazawa

Yoshihiro Kumazawa 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).

  • Patent number: 6814617
    Abstract: Terminal tools are fixed to end portions of a plurality of wires that are covered with a shield lacing, and a shield case is connected/fixed to the shield lacing. End portions of respective wires are inserted into a unit housing of the electronic unit from the outside and connected to circuits in the unit housing, and then connected portions between respective wires and a unit housing are covered with the shield case from the outside by fixing the shield case to an outer surface of the unit housing. Also, the shield case and the shield lacing are brought into the state that they can be grounded via the unit housing.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: November 9, 2004
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kouji Oota, Hiroki Hirai, Yoshihiro Kumazawa, Higeru Sakai
  • Publication number: 20030207615
    Abstract: Terminal tools 16 are fixed to end portions of a plurality of wires 12 that are covered with a shield lacing 10, and a shield case 30 is connected/fixed to the shield lacing 10. End portions of respective wires 12 are inserted into a unit housing 40 of the electronic unit from the outside and connected to circuits in the unit housing 40, and then connected portions between respective wires 12 and a unit housing 40 are covered with the shield case 30 from the outside by fixing the shield case 30 to an outer surface of the unit housing 40. Also, the shield case 30 and the shield lacing 10 are brought into the state that they can be grounded via the unit housing 40.
    Type: Application
    Filed: June 5, 2003
    Publication date: November 6, 2003
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kouji Oota, Hiroki Hirai, Yoshihiro Kumazawa, Shigeki Sakai
  • Patent number: 6595789
    Abstract: Terminal tools 16 are fixed to end portions of a plurality of wires 12 that are covered with a shield lacing 10, and a shield case 30 is connected/fixed to the shield lacing 10. End portions of respective wires 12 are inserted into a unit housing 40 of the electronic unit from the outside and connected to circuits in the unit housing 40, and then connected portions between respective wires 12 and a unit housing 40 are covered with the shield case 30 from the outside by fixing the shield case 30 to an outer surface of the unit housing 40. Also, the shield case 30 and the shield lacing 10 are brought into the state that they can be grounded via the unit housing 40.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: July 22, 2003
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kouji Oota, Hiroki Hirai, Yoshihiro Kumazawa, Shigeki Sakai
  • Publication number: 20020048994
    Abstract: Terminal tools 16 are fixed to end portions of a plurality of wires 12 that are covered with a shield lacing 10, and a shield case 30 is connected/fixed to the shield lacing 10. End portions of respective wires 12 are inserted into a unit housing 40 of the electronic unit from the outside and connected to circuits in the unit housing 40, and then connected portions between respective wires 12 and a unit housing 40 are covered with the shield case 30 from the outside by fixing the shield case 30 to an outer surface of the unit housing 40. Also, the shield case 30 and the shield lacing 10 are brought into the state that they can be grounded via the unit housing 40.
    Type: Application
    Filed: October 17, 2001
    Publication date: April 25, 2002
    Applicant: AUTONETWORKS TECHNOLOGIES, LTD
    Inventors: Kouji Oota, Hiroki Hirai, Yoshihiro Kumazawa, Shigeki Sakai
  • Patent number: 5665936
    Abstract: A wire spacing device for protecting a signal line from the interference of a strong electromagnetic field from a power line by keeping the signal line separate from the power line by a predetermined distance includes a center bar extending in first and second hooks provided on each end of the center bar. Each of the first and second hooks is formed by an elastic material in a C-shape configuration having a gap smaller than the diameter of any of the first and second wires. When either one of the first and second wires is pressed in the gap, the hook resiliently opens the gap and passes the wire therein, and then the hook resiliently returns to the original position to hold the passed wire therein.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: September 9, 1997
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Naohito Sawamura, Yoshihiro Kumazawa
  • Patent number: 5610447
    Abstract: A wire harness for an appliance containing a combination of selectable electrical systems is separated into a common circuit which is always provided independently of presence or absence of the selectable electrical systems, and dedicated circuits one for each of the selectable electrical systems, the common circuit and the dedicated circuits of the selected electrical systems are detachably joined to each other via a branch connector to form the wire harness whereby simple production control and high production efficiency are assured and changes in production or design can be readily dealt with in the production of a wire harness.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: March 11, 1997
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasuo Nishikawa, Hiroyuki Nakajima, Hitoshi Iwata, Yoshihiro Kumazawa, Naohito Sawamura, Hiroshi Nakamura, Ichiro Suzuki, Shigeru Kobayashi, Ryuichi Nabeshima, Takao Sakashita, Kazuhiko Okino, Kiyoshi Taira, Koukichi Takamura, Mitsuyoshi Omaki
  • Patent number: 5610454
    Abstract: In the production of a wire harness for an appliance whose circuit differs depending on a combination of selectable electrical systems, the wire harness is divided beforehand into the common circuit which is always provided independently of the presence or absence of the selectable electrical systems and the dedicated circuits one for each of the selectable electrical systems, the wire harness for the appliance is separated into a common circuit and dedicated circuits one for each of the associated electrical systems when an order of an appliance is made, a number of common circuits and a number of each of the dedicated circuits for the electrical systems are added up, the added up number of an common circuits and the dedicated circuits are manufactured and the common circuit and the dedicated circuits of the associated electric systems are combined to produce wire harnesses of the ordered appliances, whereby simple production control and high production efficiency are assured and changes is production or des
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: March 11, 1997
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasuo Nishikawa, Hiroyuki Nakajima, Hitoshi Iwata, Yoshihiro Kumazawa, Naohito Sawamura, Hiroshi Nakamura, Ichiro Suzuki, Shigeru Kobayashi, Ryuichi Nabeshima, Takao Sakashita, Kazuhiko Okino, Kiyoshi Taira, Koukichi Takamura, Mitsuyoshi Omaki