Patents by Inventor Takeshi Sunaga

Takeshi Sunaga 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).

  • Publication number: 20240066872
    Abstract: A recording device has: a recording section that discharges a liquid to a medium for recording purposes; a maintenance unit that abuts the recording section and performs maintenance of the recording section; a first moving section that causes the recording section to abut the maintenance unit and separates the recording section from the maintenance unit; and a restricting section that can suppress movement of the recording section toward the maintenance unit after the recording section abuts the maintenance unit. The first moving section has a driving source and a worm gear that transmits the power of the driving source. A force with which the driving source causes the recording section to abut the maintenance unit is smaller than a force with which the driving source separates the recording section from the maintenance unit.
    Type: Application
    Filed: August 25, 2023
    Publication date: February 29, 2024
    Inventors: Yasuo SUNAGA, Takeshi AOKI, Yusaku AMANO
  • Publication number: 20230343744
    Abstract: A semiconductor device is provided with a semiconductor element having a plurality of electrodes, a plurality of terminals electrically connected to the plurality of electrodes, and a sealing resin covering the semiconductor element. The sealing resin covers the plurality of terminals such that a bottom surface of the semiconductor element in a thickness direction is exposed. A first terminal, which is one of the plurality of terminals, is disposed in a position that overlaps a first electrode, which is one of the plurality of electrodes, when viewed in the thickness direction. The semiconductor device is provided with a conductive connection member that contacts both the first terminal and the first electrode.
    Type: Application
    Filed: June 29, 2023
    Publication date: October 26, 2023
    Applicant: ROHM CO., LTD.
    Inventors: Akihiro KIMURA, Takeshi SUNAGA
  • Patent number: 11735561
    Abstract: A semiconductor device is provided with a semiconductor element having a plurality of electrodes, a plurality of terminals electrically connected to the plurality of electrodes, and a sealing resin covering the semiconductor element. The sealing resin covers the plurality of terminals such that a bottom surface of the semiconductor element in a thickness direction is exposed. A first terminal, which is one of the plurality of terminals, is disposed in a position that overlaps a first electrode, which is one of the plurality of electrodes, when viewed in the thickness direction. The semiconductor device is provided with a conductive connection member that contacts both the first terminal and the first electrode.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: August 22, 2023
    Assignee: ROHM CO., LTD.
    Inventors: Akihiro Kimura, Takeshi Sunaga
  • Patent number: 11535715
    Abstract: A heat stable siloxane-imide copolymer and a curable silicone adhesive composition comprising such a siloxane-imide copolymer is shown and described herein. The composition includes an alkenyl silicone, a silicone hydride based cross linker, hydrosilylation catalyst and additives that is curable at relatively low temperatures and shows good heat stability.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: December 27, 2022
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Subrata Mandal, Tetsuo Fujimoto, Takeshi Sunaga, Ramasubramanian Narayanan
  • Publication number: 20220278072
    Abstract: A semiconductor device is provided with a semiconductor element having a plurality of electrodes, a plurality of terminals electrically connected to the plurality of electrodes, and a sealing resin covering the semiconductor element. The sealing resin covers the plurality of terminals such that a bottom surface of the semiconductor element in a thickness direction is exposed. A first terminal, which is one of the plurality of terminals, is disposed in a position that overlaps a first electrode, which is one of the plurality of electrodes, when viewed in the thickness direction. The semiconductor device is provided with a conductive connection member that contacts both the first terminal and the first electrode.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 1, 2022
    Inventors: Akihiro Kimura, Takeshi Sunaga
  • Publication number: 20220195122
    Abstract: A heat stable siloxane-imide copolymer and a curable silicone adhesive composition comprising such a siloxane-imide copolymer is shown and described herein. The composition includes an alkenyl silicone, a silicone hydride based cross linker, hydrosilylation catalyst and additives that is curable at relatively low temperatures and shows good heat stability.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 23, 2022
    Inventors: Subrata Mandal, Tetsuo Fujimoto, Takeshi Sunaga, Ramasubramanian Narayanan
  • Patent number: 11367704
    Abstract: A semiconductor device is provided with a semiconductor element having a plurality of electrodes, a plurality of terminals electrically connected to the plurality of electrodes, and a sealing resin covering the semiconductor element. The sealing resin covers the plurality of terminals such that a bottom surface of the semiconductor element in a thickness direction is exposed. A first terminal, which is one of the plurality of terminals, is disposed in a position that overlaps a first electrode, which is one of the plurality of electrodes, when viewed in the thickness direction. The semiconductor device is provided with a conductive connection member that contacts both the first terminal and the first electrode.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: June 21, 2022
    Assignee: ROHM CO., LTD.
    Inventors: Akihiro Kimura, Takeshi Sunaga
  • Patent number: 10894883
    Abstract: The present invention is an addition reaction type polyorganosiloxane composition which can be cured rapidly at room temperature. A cured product of the composition exhibits high elongation, excellent stress relaxation properties and good reliability under conditions of high temperature and high humidity and exhibits excellent reliability in cold/heat cycling. The composition contains: (A1) a straight chain polysiloxane containing alkenyl groups at both terminals; (B1) a straight chain polysiloxane containing SiH groups at both terminals; (B2) a crosslinkable polyorganohydrogensiloxane; one or more types selected from the group consisting of (A2) a straight chain polysiloxane containing an alkenyl group at one terminal and (B3) a straight chain polysiloxane containing a SiH group at one terminal; and (C) a platinum-based catalyst.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: January 19, 2021
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Yasuhito Morita, Koji Okawa, Takeshi Sunaga
  • Publication number: 20200321308
    Abstract: A semiconductor device is provided with a semiconductor element having a plurality of electrodes, a plurality of terminals electrically connected to the plurality of electrodes, and a sealing resin covering the semiconductor element. The sealing resin covers the plurality of terminals such that a bottom surface of the semiconductor element in a thickness direction is exposed. A first terminal, which is one of the plurality of terminals, is disposed in a position that overlaps a first electrode, which is one of the plurality of electrodes, when viewed in the thickness direction. The semiconductor device is provided with a conductive connection member that contacts both the first terminal and the first electrode.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 8, 2020
    Inventors: Akihiro Kimura, Takeshi Sunaga
  • Patent number: 10770380
    Abstract: A method includes the steps of: preparing a lead frame including a plurality of die pads, and preparing a plurality of semiconductor chips; disposing each of the semiconductor chips on a respective one of the die pads; forming a sealing resin to cover the die pads and the semiconductor chips; and attaching a heat dissipation plate to the die pads by pressing the heat dissipation plate against the die pads via a resin sheet which is an adhesive layer after the sealing resin is formed.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: September 8, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Akihiro Kimura, Takeshi Sunaga, Shouji Yasunaga, Akihiro Koga
  • Patent number: 10707185
    Abstract: A semiconductor device is provided with a semiconductor element having a plurality of electrodes, a plurality of terminals electrically connected to the plurality of electrodes, and a sealing resin covering the semiconductor element. The sealing resin covers the plurality of terminals such that a bottom surface of the semiconductor element in a thickness direction is exposed. A first terminal, which is one of the plurality of terminals, is disposed in a position that overlaps a first electrode, which is one of the plurality of electrodes, when viewed in the thickness direction. The semiconductor device is provided with a conductive connection member that contacts both the first terminal and the first electrode.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: July 7, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Akihiro Kimura, Takeshi Sunaga
  • Publication number: 20200161228
    Abstract: A method includes the steps of: preparing a lead frame including a plurality of die pads, and preparing a plurality of semiconductor chips; disposing each of the semiconductor chips on a respective one of the die pads; forming a sealing resin to cover the die pads and the semiconductor chips; and attaching a heat dissipation plate to the die pads by pressing the heat dissipation plate against the die pads via a resin sheet which is an adhesive layer after the sealing resin is formed.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Inventors: Akihiro Kimura, Takeshi Sunaga, Shouji Yasunaga, Akihiro Koga
  • Publication number: 20200066675
    Abstract: A semiconductor device is provided with a semiconductor element having a plurality of electrodes, a plurality of terminals electrically connected to the plurality of electrodes, and a sealing resin covering the semiconductor element. The sealing resin covers the plurality of terminals such that a bottom surface of the semiconductor element in a thickness direction is exposed. A first terminal, which is one of the plurality of terminals, is disposed in a position that overlaps a first electrode, which is one of the plurality of electrodes, when viewed in the thickness direction. The semiconductor device is provided with a conductive connection member that contacts both the first terminal and the first electrode.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 27, 2020
    Inventors: Akihiro KIMURA, Takeshi SUNAGA
  • Patent number: 10573584
    Abstract: A method includes the steps of: preparing a lead frame including a plurality of die pads, and preparing a plurality of semiconductor chips; disposing each of the semiconductor chips on a respective one of the die pads; forming a sealing resin to cover the die pads and the semiconductor chips; and attaching a heat dissipation plate to the die pads by pressing the heat dissipation plate against the die pads via a resin sheet which is an adhesive layer after the sealing resin is formed.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: February 25, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Akihiro Kimura, Takeshi Sunaga, Shouji Yasunaga, Akihiro Koga
  • Patent number: 10497666
    Abstract: A semiconductor device is provided with a semiconductor element having a plurality of electrodes, a plurality of terminals electrically connected to the plurality of electrodes, and a sealing resin covering the semiconductor element. The sealing resin covers the plurality of terminals such that a bottom surface of the semiconductor element in a thickness direction is exposed. A first terminal, which is one of the plurality of terminals, is disposed in a position that overlaps a first electrode, which is one of the plurality of electrodes, when viewed in the thickness direction. The semiconductor device is provided with a conductive connection member that contacts both the first terminal and the first electrode.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 3, 2019
    Assignee: ROHM CO., LTD.
    Inventors: Akihiro Kimura, Takeshi Sunaga
  • Publication number: 20190229042
    Abstract: A method includes the steps of: preparing a lead frame including a plurality of die pads, and preparing a plurality of semiconductor chips; disposing each of the semiconductor chips on a respective one of the die pads; forming a sealing resin to cover the die pads and the semiconductor chips; and attaching a heat dissipation plate to the die pads by pressing the heat dissipation plate against the die pads via a resin sheet which is an adhesive layer after the sealing resin is formed.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Inventors: AKIHIRO KIMURA, TAKESHI SUNAGA, SHOUJI YASUNAGA, AKIHIRO KOGA
  • Publication number: 20190157239
    Abstract: A semiconductor device is provided with a semiconductor element having a plurality of electrodes, a plurality of terminals electrically connected to the plurality of electrodes, and a sealing resin covering the semiconductor element. The sealing resin covers the plurality of terminals such that a bottom surface of the semiconductor element in a thickness direction is exposed. A first terminal, which is one of the plurality of terminals, is disposed in a position that overlaps a first electrode, which is one of the plurality of electrodes, when viewed in the thickness direction. The semiconductor device is provided with a conductive connection member that contacts both the first terminal and the first electrode.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: AKIHIRO KIMURA, TAKESHI SUNAGA
  • Publication number: 20190157193
    Abstract: A method includes the steps of: preparing a lead frame including a plurality of die pads, and preparing a plurality of semiconductor chips; disposing each of the semiconductor chips on a respective one of the die pads; forming a sealing resin to cover the die pads and the semiconductor chips; and attaching a heat dissipation plate to the die pads by pressing the heat dissipation plate against the die pads via a resin sheet which is an adhesive layer after the sealing resin is formed.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: AKIHIRO KIMURA, TAKESHI SUNAGA, SHOUJI YASUNAGA, AKIHIRO KOGA
  • Publication number: 20190153227
    Abstract: The present invention is an addition reaction type polyorganosiloxane composition which can be cured rapidly at room temperature. A cured product of the composition exhibits high elongation, excellent stress relaxation properties and good reliability under conditions of high temperature and high humidity and exhibits excellent reliability in cold/heat cycling. The composition contains: (A1) a straight chain polysiloxane containing alkenyl groups at both terminals; (B1) a straight chain polysiloxane containing SiH groups at both terminals; (B2) a crosslinkable polyorganohydrogensiloxane; one or more types selected from the group consisting of (A2) a straight chain polysiloxane containing an alkenyl group at one terminal and (B3) a straight chain polysiloxane containing a SiH group at one terminal; and (C) a platinum-based catalyst.
    Type: Application
    Filed: June 15, 2017
    Publication date: May 23, 2019
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Yasuhito MORITA, Koji OKAWA, Takeshi SUNAGA
  • Patent number: 10290565
    Abstract: A method includes the steps of: preparing a lead frame including a plurality of die pads, and preparing a plurality of semiconductor chips; disposing each of the semiconductor chips on a respective one of the die pads; forming a sealing resin to cover the die pads and the semiconductor chips; and attaching a heat dissipation plate to the die pads by pressing the heat dissipation plate against the die pads via a resin sheet which is an adhesive layer after the sealing resin is formed.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: May 14, 2019
    Assignee: ROHM CO., LTD.
    Inventors: Akihiro Kimura, Takeshi Sunaga, Shouji Yasunaga, Akihiro Koga