Patents by Inventor Toru Ichimura

Toru Ichimura 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: 11063422
    Abstract: A power semiconductor module includes a power semiconductor element; a control circuit which controls the power semiconductor element; and multiple terminals. The control circuit deactivates a gate terminal, which is a control electrode of the power semiconductor element, in an event of a fault in the power semiconductor element or the power semiconductor module, and outputs from a first output terminal a fault signal indicating the event of the fault in the power semiconductor module. When there is no fault in the power semiconductor element and the power semiconductor module, the control circuit uses the first output terminal for other applications such as for outputting temperature information on the power semiconductor module, for example. This allows the fault signal to be output without increasing the number of terminals of the power semiconductor module more than necessary.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventor: Toru Ichimura
  • Patent number: 10643918
    Abstract: A semiconductor device includes a printed wiring board; a first semiconductor module including a first package body and a first heat radiation surface on one surface of the first package body, another surface of the first package body, opposite to the first heat radiation surface, faces one face of the printed wiring board; a first heat radiator on the first heat radiation surface; a second semiconductor module including a second package body and a second heat radiation surface on one surface of the second package body, another surface of the second package body, opposite to the second heat radiation surface, faces another face of the printed wiring board; and a second heat radiator provided on the second heat radiation surface. The first and second semiconductor modules are arranged to overlap each other in a plan view. The second semiconductor module is connected in parallel to the first semiconductor module.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: May 5, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventor: Toru Ichimura
  • Patent number: 10354940
    Abstract: According to the present invention, a semiconductor device includes a first metal plate, a second metal plate provided above the first metal plate, a third metal plate provided above the second metal plate, a first semiconductor chip provided between the first metal plate and the second metal plate, a second semiconductor chip provided between the second metal plate and the third metal plate and a cooling member, wherein the first metal plate has a first cooling portion that is in contact with the cooling member, the second metal plate has a second cooling portion that is in contact with the cooling member, and the third metal plate has a third cooling portion that is in contact with the cooling member.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: July 16, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsujiro Tsunoda, Toru Ichimura
  • Publication number: 20190157859
    Abstract: A power semiconductor module includes a power semiconductor element; a control circuit which controls the power semiconductor element; and multiple terminals. The control circuit deactivates a gate terminal, which is a control electrode of the power semiconductor element, in an event of a fault in the power semiconductor element or the power semiconductor module, and outputs from a first output terminal a fault signal indicating the event of the fault in the power semiconductor module. When there is no fault in the power semiconductor element and the power semiconductor module, the control circuit uses the first output terminal for other applications such as for outputting temperature information on the power semiconductor module, for example. This allows the fault signal to be output without increasing the number of terminals of the power semiconductor module more than necessary.
    Type: Application
    Filed: September 21, 2018
    Publication date: May 23, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventor: Toru ICHIMURA
  • Publication number: 20190157177
    Abstract: A semiconductor device includes a printed wiring board; a first semiconductor module including a first package body and a first heat radiation surface on one surface of the first package body, another surface of the first package body, facing the first heat radiation surface, faces one face of the printed wiring board; a first heat radiator on the first heat radiation surface; a second semiconductor module including a second package body and a second heat radiation surface on one surface of the second package body, another surface of the second package body, facing the second heat radiation surface, faces another face of the printed wiring board; and a second heat radiator provided on the second heat radiation surface. The first and second semiconductor modules are arranged to overlap each other in a plan view. The second semiconductor module is connected in parallel to the first semiconductor module.
    Type: Application
    Filed: September 24, 2018
    Publication date: May 23, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventor: Toru ICHIMURA
  • Publication number: 20190051581
    Abstract: According to the present invention, a semiconductor device includes a first metal plate, a second metal plate provided above the first metal plate, a third metal plate provided above the second metal plate, a first semiconductor chip provided between the first metal plate and the second metal plate, a second semiconductor chip provided between the second metal plate and the third metal plate and a cooling member, wherein the first metal plate has a first cooling portion that is in contact with the cooling member, the second metal plate has a second cooling portion that is in contact with the cooling member, and the third metal plate has a third cooling portion that is in contact with the cooling member.
    Type: Application
    Filed: February 19, 2018
    Publication date: February 14, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tetsujiro TSUNODA, Toru ICHIMURA
  • Patent number: 9735226
    Abstract: Provided is a power module having a sufficient space in which a large electronic component in size is disposed, and having yield strength against external stresses, such as vibrations. A power module includes: an insulating substrate; a semiconductor element mounted above the insulating substrate; a sealant sealing the insulating substrate and semiconductor element, and forming the outer shape of the power module; and a pair of terminals disposed on the sealant, in both ends of the sealant in a width direction of the power module in an upright manner. The pair of terminals are spaced from each other by a distance greater than the width of a film capacitor being a first electronic component mounted on the bottom surface of a control substrate being a circuit substrate coupled to tips of the pair of terminals. The pair of terminals are longer in a height direction than the film capacitor.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: August 15, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshinari Hirai, Tetsujiro Tsunoda, Toru Ichimura, Masanori Yamamoto, Hiroshi Fujita
  • Publication number: 20170221984
    Abstract: Provided is a power module having a sufficient space in which a large electronic component in size is disposed, and having yield strength against external stresses, such as vibrations. A power module includes: an insulating substrate; a semiconductor element mounted above the insulating substrate; a sealant sealing the insulating substrate and semiconductor element, and forming the outer shape of the power module; and a pair of terminals disposed on the sealant, in both ends of the sealant in a width direction of the power module in an upright manner. The pair of terminals are spaced from each other by a distance greater than the width of a film capacitor being a first electronic component mounted on the bottom surface of a control substrate being a circuit substrate coupled to tips of the pair of terminals. The pair of terminals are longer in a height direction than the film capacitor.
    Type: Application
    Filed: September 12, 2016
    Publication date: August 3, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Toshinari HIRAI, Tetsujiro TSUNODA, Toru ICHIMURA, Masanori YAMAMOTO, Hiroshi FUJITA
  • Publication number: 20110234764
    Abstract: The imaging device includes a first optical system, a second optical system, a first support frame, a second support frame, a frame member, and a support member. The first support frame has a first contact portion and supports the first optical system. The second support frame supports the second optical system. The first and second support frames on the frame member are mounted, and this frame member comes into contact with the first contact portion at three or more points. The support member couples the first support frame to the frame member in a state in which the first receiver comes into contact with the first contact portion. The points of contact between the first contact portion and the first receiver are disposed on an imaginary spherical plane.
    Type: Application
    Filed: March 2, 2011
    Publication date: September 29, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: TORU ICHIMURA, NOBUTAKA KANAYAMA, NARITOSHI KAGAYA, JUNYA YAMADA, YOSHITOMO KATO
  • Patent number: 5240200
    Abstract: A set of tape cassettes of successively larger sizes, each cassette having a housing elongated in a longitudinal direction and having a front face with a tape accommodating opening symmetrical about a center line extending in a lateral direction transverse to the longitudinal direction and midway between side faces of the housing, the housing further having a bottom face with a plurality of cassette guide grooves therein parallel to each other and extending transversely of the housing and engagable with guide projections on a cassette holder for guiding the cassette into the cassette holder.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: August 31, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akihiro Nishimura, Toru Ichimura, Shuji Uematsu, Yoshinori Shiomi, Kenji Iwano