Patents by Inventor Kosei OSADA

Kosei OSADA 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: 11923128
    Abstract: An electronic component includes an insulating layer, a low voltage conductor pattern formed inside the insulating layer, a high voltage conductor pattern formed inside the insulating layer such as to face the low voltage conductor pattern in an up/down direction, and a withstand voltage enhancement structure of conductive property formed inside the insulating layer and along the high voltage conductor pattern such as to protrude further outside than the low voltage conductor pattern in plan view.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: March 5, 2024
    Assignee: ROHM CO., LTD.
    Inventors: Taketoshi Tanaka, Kosei Osada, Masahiko Arimura
  • Publication number: 20230370064
    Abstract: A gate driver includes a low-voltage circuit configured to be actuated by application of a first voltage and a high-voltage circuit configured to be actuated by application of a second voltage that is higher than the first voltage. The gate driver also includes a transformer and a capacitor connected in series to the transformer. The low-voltage circuit and the high-voltage circuit are connected by the transformer and the capacitor and configured to transmit a signal through the transformer and the capacitor.
    Type: Application
    Filed: July 26, 2023
    Publication date: November 16, 2023
    Applicant: ROHM CO., LTD.
    Inventors: Keiji WADA, Bungo TANAKA, Kosei OSADA
  • Publication number: 20230361773
    Abstract: A gate driver configured to apply a drive voltage signal to a gate of a switching element includes a low-voltage circuit chip and a high-voltage circuit chip. The low-voltage circuit chip includes a low-voltage circuit configured to be actuated by application of a first voltage. The high-voltage circuit chip includes a high-voltage circuit configured to be actuated by application of a second voltage that is higher than the first voltage. The gate driver further includes multiple transformer chips connected in series to each other. The low-voltage circuit chip and the high-voltage circuit chip are connected by the multiple transformer chips and configured to transmit a signal through the multiple transformer chips.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 9, 2023
    Applicant: ROHM CO., LTD.
    Inventor: Kosei OSADA
  • Publication number: 20230317354
    Abstract: An electronic component includes an insulating layer that has a principal surface, a passive device that includes a low voltage pattern that is formed in the insulating layer and a high voltage pattern that is formed in the insulating layer such as to oppose the low voltage pattern in a normal direction to the principal surface and to which a voltage exceeding a voltage to be applied to the low voltage pattern is to be applied, and a shield conductor layer that is formed in the insulating layer such as to be positioned in a periphery of the high voltage pattern in plan view, shields an electric field formed between the low voltage pattern and the high voltage pattern, and suppresses electric field concentration with respect to the high voltage pattern.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 5, 2023
    Inventor: Kosei OSADA
  • Publication number: 20230298805
    Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.
    Type: Application
    Filed: April 13, 2023
    Publication date: September 21, 2023
    Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA
  • Patent number: 11742132
    Abstract: An electronic component includes an insulating layer that has a principal surface, a passive device that includes a low voltage pattern that is formed in the insulating layer and a high voltage pattern that is formed in the insulating layer such as to oppose the low voltage pattern in a normal direction to the principal surface and to which a voltage exceeding a voltage to be applied to the low voltage pattern is to be applied, and a shield conductor layer that is formed in the insulating layer such as to be positioned in a periphery of the high voltage pattern in plan view, shields an electric field formed between the low voltage pattern and the high voltage pattern, and suppresses electric field concentration with respect to the high voltage pattern.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: August 29, 2023
    Assignee: ROHM CO., LTD.
    Inventor: Kosei Osada
  • Patent number: 11657953
    Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: May 23, 2023
    Assignee: ROHM CO., LTD.
    Inventors: Kosei Osada, Isamu Nishimura, Tetsuya Kagawa, Daiki Yanagishima, Toshiyuki Ishikawa, Michihiko Mifuji, Satoshi Kageyama, Nobuyuki Kasahara
  • Publication number: 20230124986
    Abstract: An electronic component includes an insulating layer that has a principal surface, a passive device that includes a low voltage pattern that is formed in the insulating layer and a high voltage pattern that is formed in the insulating layer such as to oppose the low voltage pattern in a normal direction to the principal surface and to which a voltage exceeding a voltage to be applied to the low voltage pattern is to be applied, and a shield conductor layer that is formed in the insulating layer such as to be positioned in a periphery of the high voltage pattern in plan view, shields an electric field formed between the low voltage pattern and the high voltage pattern, and suppresses electric field concentration with respect to the high voltage pattern.
    Type: Application
    Filed: December 14, 2022
    Publication date: April 20, 2023
    Inventor: Kosei OSADA
  • Publication number: 20230107689
    Abstract: An electronic component includes an insulating layer, a low voltage conductor pattern formed inside the insulating layer, a high voltage conductor pattern formed inside the insulating layer such as to face the low voltage conductor pattern in an up/down direction, and a withstand voltage enhancement structure of conductive property formed inside the insulating layer and along the high voltage conductor pattern such as to protrude further outside than the low voltage conductor pattern in plan view.
    Type: Application
    Filed: December 6, 2022
    Publication date: April 6, 2023
    Inventors: Taketoshi TANAKA, Kosei OSADA, Masahiko ARIMURA
  • Patent number: 11557422
    Abstract: An electronic component includes an insulating layer that has a principal surface, a passive device that includes a low voltage pattern that is formed in the insulating layer and a high voltage pattern that is formed in the insulating layer such as to oppose the low voltage pattern in a normal direction to the principal surface and to which a voltage exceeding a voltage to be applied to the low voltage pattern is to be applied, and a shield conductor layer that is formed in the insulating layer such as to be positioned in a periphery of the high voltage pattern in plan view, shields an electric field formed between the low voltage pattern and the high voltage pattern, and suppresses electric field concentration with respect to the high voltage pattern.
    Type: Grant
    Filed: December 25, 2019
    Date of Patent: January 17, 2023
    Assignee: ROHM CO., LTD.
    Inventor: Kosei Osada
  • Patent number: 11545299
    Abstract: An electronic component includes an insulating layer, a low voltage conductor pattern formed inside the insulating layer, a high voltage conductor pattern formed inside the insulating layer such as to face the low voltage conductor pattern in an up/down direction, and a withstand voltage enhancement structure of conductive property formed inside the insulating layer and along the high voltage conductor pattern such as to protrude further outside than the low voltage conductor pattern in plan view.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: January 3, 2023
    Assignee: ROHM CO., LTD.
    Inventors: Taketoshi Tanaka, Kosei Osada, Masahiko Arimura
  • Publication number: 20210233700
    Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA
  • Publication number: 20210193380
    Abstract: An electronic component includes an insulating layer, a low voltage conductor pattern formed inside the insulating layer, a high voltage conductor pattern formed inside the insulating layer such as to face the low voltage conductor pattern in an up/down direction, and a withstand voltage enhancement structure of conductive property formed inside the insulating layer and along the high voltage conductor pattern such as to protrude further outside than the low voltage conductor pattern in plan view.
    Type: Application
    Filed: October 15, 2018
    Publication date: June 24, 2021
    Inventors: Taketoshi TANAKA, Kosei OSADA, Masahiko ARIMURA
  • Patent number: 11011297
    Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: May 18, 2021
    Assignee: ROHM CO., LTD.
    Inventors: Kosei Osada, Isamu Nishimura, Tetsuya Kagawa, Daiki Yanagishima, Toshiyuki Ishikawa, Michihiko Mifuji, Satoshi Kageyama, Nobuyuki Kasahara
  • Publication number: 20210043361
    Abstract: An electronic component includes an insulating layer that has a principal surface, a passive device that includes a low voltage pattern that is formed in the insulating layer and a high voltage pattern that is formed in the insulating layer such as to oppose the low voltage pattern in a normal direction to the principal surface and to which a voltage exceeding a voltage to be applied to the low voltage pattern is to be applied, and a shield conductor layer that is formed in the insulating layer such as to be positioned in a periphery of the high voltage pattern in plan view, shields an electric field formed between the low voltage pattern and the high voltage pattern, and suppresses electric field concentration with respect to the high voltage pattern.
    Type: Application
    Filed: December 25, 2019
    Publication date: February 11, 2021
    Inventor: Kosei OSADA
  • Publication number: 20200203058
    Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 25, 2020
    Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA
  • Publication number: 20170287624
    Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.
    Type: Application
    Filed: June 15, 2017
    Publication date: October 5, 2017
    Applicant: ROHM CO., LTD.
    Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA
  • Patent number: 9697948
    Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: July 4, 2017
    Assignee: ROHM CO., LTD.
    Inventors: Kosei Osada, Isamu Nishimura, Tetsuya Kagawa, Daiki Yanagishima, Toshiyuki Ishikawa, Michihiko Mifuji, Satoshi Kageyama, Nobuyuki Kasahara
  • Publication number: 20150137314
    Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 21, 2015
    Applicant: ROHM CO., LTD.
    Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA