Patents by Inventor Keitaro Yamagishi

Keitaro Yamagishi 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: 20210319163
    Abstract: A transmission path design assistance system assisting in the design of a transmission path with different reflection specification values for each frequency is obtained.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koji SHIBUYA, Tetsu OWADA, Keitaro YAMAGISHI
  • Patent number: 10916912
    Abstract: There are included a CAN package (2) having a stem (22) and lead pins (23a and 23b) protruding from the stem (22), and a board (3) having pads (33a and 33b) for connecting lead pin. The CAN package (2) has a slot (222) provided in a surface of the stem (22) from which the lead pins (23a and 23b) protrude. One end of the board (3) is inserted into the slot (222), and the pads (33a and 33b) for connecting lead pin are electrically connected to the lead pins (23a and 23b).
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: February 9, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroshi Itakura, Keitaro Yamagishi, Yoshihiro Akeboshi
  • Publication number: 20190334313
    Abstract: There are included a CAN package (2) having a stem (22) and lead pins (23a and 23b) protruding from the stem (22), and a board (3) having pads (33a and 33b) for connecting lead pin. The CAN package (2) has a slot (222) provided in a surface of the stem (22) from which the lead pins (23a and 23b) protrude. One end of the board (3) is inserted into the slot (222), and the pads (33a and 33b) for connecting lead pin are electrically connected to the lead pins (23a and 23b).
    Type: Application
    Filed: January 20, 2017
    Publication date: October 31, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroshi ITAKURA, Keitaro YAMAGISHI, Yoshihiro AKEBOSHI
  • Publication number: 20180076551
    Abstract: A multipole connector includes a connector body that includes a first end surface and a second end surface; a plurality of contacts that are arranged and led to the first end surface of the connector body; and a ground plate. The multipole connector is connected to a cable in which ground meshes forming external conductors that are to be grounds and core wires that are to be signal lines are insulated from each other by an inner jacket and the outer side is sheathed with an outer jacket. The signal lines are connected to signal line contacts in the contacts, respectively, the ground meshes are connected together on the ground plate, and the ground plate is connected to at least one of the ground contacts of the contacts.
    Type: Application
    Filed: April 14, 2015
    Publication date: March 15, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tetsuhiro MATSUYAMA, Miwako KOSAKA, Katsuya HARADA, Keitaro YAMAGISHI, Yuichi SASAKI
  • Patent number: 8081487
    Abstract: Provided is a signal transmission circuit capable of realizing the same effects as those in a conventional manner that employs a complicated circuit by using no complicated circuit, that is, by a simple circuit. The signal transmission circuit includes: a transmission path having a first impedance; a terminating resistor having a predetermined resistance; a transmission path having a second impedance, which is connected to the transmission path and the terminating resistor, the second impedance being higher than both of the first impedance and the predetermined resistance; and an input buffer for receiving a signal at a connection portion of the transmission path and the transmission path.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: December 20, 2011
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Keitaro Yamagishi, Seiichi Saito
  • Patent number: 7501910
    Abstract: Provided is a signal transmission circuit capable of realizing the same effects as those in a conventional manner that employs a complicated circuit by using no complicated circuit, that is, by a simple circuit. The signal transmission circuit includes: a transmission path having a first impedance; a terminating resistor having a predetermined resistance; a transmission path having a second impedance, which is connected to the transmission path and the terminating resistor, the second impedance being higher than both of the first impedance and the predetermined resistance; and an input buffer for receiving a signal at a connection portion of the transmission path and the transmission path.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: March 10, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Keitaro Yamagishi, Seiichi Saito
  • Publication number: 20080315975
    Abstract: Provided is a signal transmission circuit capable of realizing the same effects as those in a conventional manner that employs a complicated circuit by using no complicated circuit, that is, by a simple circuit. The signal transmission circuit includes: a transmission path having a first impedance; a terminating resistor having a predetermined resistance; a transmission path having a second impedance, which is connected to the transmission path and the terminating resistor, the second impedance being higher than both of the first impedance and the predetermined resistance; and an input buffer for receiving a signal at a connection portion of the transmission path and the transmission path.
    Type: Application
    Filed: August 21, 2008
    Publication date: December 25, 2008
    Inventors: KEITARO YAMAGISHI, Seiichi Saito
  • Publication number: 20060197679
    Abstract: Provided is a signal transmission circuit capable of realizing the same effects as those in a conventional manner that employs a complicated circuit by using no complicated circuit, that is, by a simple circuit. The signal transmission circuit includes: a transmission path having a first impedance; a terminating resistor having a predetermined resistance; a transmission path having a second impedance, which is connected to the transmission path and the terminating resistor, the second impedance being higher than both of the first impedance and the predetermined resistance; and an input buffer for receiving a signal at a connection portion of the transmission path and the transmission path.
    Type: Application
    Filed: February 23, 2006
    Publication date: September 7, 2006
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Keitaro Yamagishi, Seiichi Saito
  • Patent number: 6487250
    Abstract: When a change of an output signal is detected by an output-signal-state-change detector, a continuous-change performing part controls an output impedance changing part, which is provided between an output buffer and a signal line, so as to continuously change an output impedance from low impedance to high impedance, at the changing timing of the output signal.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: November 26, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuro Kato, Seiichi Saito, Keitaro Yamagishi
  • Patent number: D877707
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: March 10, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Itakura, Keitaro Yamagishi, Yoshihiro Akeboshi
  • Patent number: D908646
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 26, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Itakura, Keitaro Yamagishi, Yoshihiro Akeboshi
  • Patent number: D908647
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 26, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Itakura, Keitaro Yamagishi, Yoshihiro Akeboshi
  • Patent number: D909317
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: February 2, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Itakura, Keitaro Yamagishi, Yoshihiro Akeboshi
  • Patent number: D909318
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: February 2, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Itakura, Keitaro Yamagishi, Yoshihiro Akeboshi