Patents by Inventor Yasuo Akutsu

Yasuo Akutsu 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: 7679176
    Abstract: A semiconductor device has a substrate with an electronic circuit, a semiconductor element provided at a first surface of the substrate and electrically connected by wire bonding to the electronic circuit, a metallic core layer electrically connected to the semiconductor element. A plurality of conductive bumps provided opposite the first surface of the substrate. A thermal hardenable resin seals at least the semiconductor element, and a metal plate is electrically connected to the metal core layer.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: March 16, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Asano, Yasuo Akutsu, Masahide Harada, Kaoru Uchiyama, Shinichi Fujiwara, Isamu Yoshida
  • Patent number: 7530819
    Abstract: A device for controlling a vehicle 8 comprising a housing 3, a rectangular printed circuit board 4 which is fixed to the inside of the housing and has a control circuit thereon, and plugs 1a and 1b provided along one side of the rectangular printed circuit board 4 to transfer signals between the inside and the outside of said housing 3; wherein the plugs 1a and 1b respectively contain plug pins and the plug pins 2 are electrically connected to the printed circuit board 4 via bonding wires 5 inside the housing 3.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: May 12, 2009
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Masahiko Asano, Yasuo Akutsu, Shuji Eguchi, Kunito Nakatsuru, Kaoru Uchiyama
  • Publication number: 20080108232
    Abstract: A device for controlling a vehicle 8 comprising a housing 3, a rectangular printed circuit board 4 which is fixed to the inside of the housing and has a control circuit thereon, and plugs 1a and 1b provided along one side of the rectangular printed circuit board 4 to transfer signals between the inside and the outside of said housing 3; wherein the plugs 1a and 1b respectively contain plug pins and the plug pins 2 are electrically connected to the printed circuit board 4 via bonding wires 5 inside the housing 3.
    Type: Application
    Filed: October 26, 2007
    Publication date: May 8, 2008
    Inventors: Masahiko Asano, Yasuo Akutsu, Shuji Eguchi, Kunito Nakatsuru, Kaoru Uchiyama
  • Patent number: 7303406
    Abstract: A device for controlling a vehicle 8 has a housing, a rectangular printed circuit board inside of the housing and a control circuit thereon. Plugs are provided along one side of the rectangular printed circuit board to transfer signals between the inside and the outside of the housing. The plugs have plug pins that are electrically connected to the printed circuit board within the housing.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: December 4, 2007
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Masahiko Asano, Yasuo Akutsu, Shuji Eguchi, Kunito Nakatsuru, Kaoru Uchiyama
  • Publication number: 20070145473
    Abstract: A semiconductor device with enhanced heat releasability and low-cost manufacturability is disclosed. This device has a substrate with an electronic circuit disposed on a first principal surface, a semiconductor element which is provided at the first surface of the substrate and electrically connected by wire bonding to the electronic circuit, a metallic core layer which is provided in the substrate and electrically connected to the semiconductor element, a plurality of conductive bumps provided on a second principal surface opposite to the first surface of the substrate, a thermal hardenable sealing resin for sealing at least the semiconductor element and the first surface side of the substrate, and a metal plate provided at the second surface for being electrically connected to the metal core layer. An electronic control module using the device is also disclosed.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 28, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Masahiko Asano, Yasuo Akutsu, Masahide Harada, Kaoru Uchiyama, Shinichi Fujiwara, Isamu Yoshida
  • Publication number: 20060216967
    Abstract: A device for controlling a vehicle 8 comprising a housing 3, a rectangular printed circuit board 4 which is fixed to the inside of the housing and has a control circuit thereon, and plugs 1a and 1b provided along one side of the rectangular printed circuit board 4 to transfer signals between the inside and the outside of said housing 3; wherein the plugs 1a and 1b respectively contain plug pins and the plug pins 2 are electrically connected to the printed circuit board 4 via bonding wires 5 inside the housing 3.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 28, 2006
    Inventors: Masahiko Asano, Yasuo Akutsu, Shuji Eguchi, Kunito Nakatsuru, Kaoru Uchiyama
  • Patent number: 7018218
    Abstract: A device for controlling a vehicle 8 having a housing 3, a rectangular printed circuit board 4 which is fixed to the inside of the housing and has a control circuit thereon. Plugs 1a and 1b are provided along one side of the rectangular printed circuit board 4 to transfer signals between the inside and the outside of the housing 3. The plugs 1a and 1b respectively contain plug pins and the plug pins 2 are electrically connected to the printed circuit board 4 via bonding wires 5 inside the housing 3.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: March 28, 2006
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Masahiko Asano, Yasuo Akutsu, Shuji Eguchi, Kunito Nakatsuru, Kaoru Uchiyama
  • Patent number: 6815073
    Abstract: The present invention has an object to enhance the reliability of the electrical connection of a silver-based conductor film on the surface of a glass ceramic board. In order to achieve the object, according to the present invention, by the use of a conductor paste containing a silver particle having a specific surface area of 0.3 m2/g to 3.0 m2/g and no glass, printing is carried out on a glass ceramic board and the conductor paste is fired at a firing temperature having a difference of ±50° C. from a softening temperature of amorphous borosilicate glass contained in the glass ceramic. Consequently, a silver-based conductor film having high reliability of the electrical connection is formed on the ceramic board.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: November 9, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Hirayoshi Tanei, Tsuyoshi Fujita, Masato Kirigaya, Yasuo Akutsu, Kaoru Uchiyama, Hiroshi Soma, Hiroatsu Tokuda
  • Publication number: 20040125582
    Abstract: A device for controlling a vehicle 8 comprising a housing 3, a rectangular printed circuit board 4 which is fixed to the inside of the housing and has a control circuit thereon, and plugs 1a and 1b provided along one side of the rectangular printed circuit board 4 to transfer signals between the inside and the outside of said housing 3; wherein the plugs 1a and 1b respectively contain plug pins and the plug pins 2 are electrically connected to the printed circuit board 4 via bonding wires 5 inside the housing 3.
    Type: Application
    Filed: July 29, 2003
    Publication date: July 1, 2004
    Applicants: HITACHI, LTD., HITACHI CAR ENGINEERING CO., LTD.
    Inventors: Masahiko Asano, Yasuo Akutsu, Shuji Eguchi, Kunito Nakatsuru, Kaoru Uchiyama
  • Publication number: 20020197488
    Abstract: The present invention has an object to enhance the reliability of the electrical connection of a silver-based conductor film on the surface of a glass ceramic board. In order to achieve the object, according to the present invention, by the use of a conductor paste containing a silver particle having a specific surface area of 0.3 m2/g to 3.0 m2/g and no glass, printing is carried out on a glass ceramic board and the conductor paste is fired at a firing temperature having a difference of ±50° C. from a softening temperature of amorphous borosilicate glass contained in the glass ceramic. Consequently, a silver-based conductor film having high reliability of the electrical connection is formed on the ceramic board.
    Type: Application
    Filed: August 30, 2001
    Publication date: December 26, 2002
    Inventors: Hirayoshi Tanei, Tsuyoshi Fujita, Masato Kirigaya, Yasuo Akutsu, Kaoru Uchiyama, Hiroshi Soma, Hiroatsu Tokuda