Patents by Inventor Yoshifumi Yamaguchi

Yoshifumi Yamaguchi 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: 20240160255
    Abstract: An information processing apparatus (10) includes a display (110), a housing (120), and a wireless relay apparatus (130). A control unit is provided inside the housing (120). The control unit includes, for example, a central processing unit (CPU), and performs various pieces of arithmetic processing and control processing. One example of the control processing is control of the display (110). The display (110) is mounted to the housing (120). The wireless relay apparatus (130) is mounted to any surface in surfaces of the housing (120). As one example, the display (110) and the wireless relay apparatus (130) are each mounted to a side surface of the housing (120).
    Type: Application
    Filed: March 16, 2021
    Publication date: May 16, 2024
    Applicants: NEC Corporation, NEC Platforms, Ltd.
    Inventors: Takahiro MATSUI, Hironobu MOCHIZUKI, Naoto OTA, Yoshifumi TANII, Takashi MIYAZAKI, Satoshi YAMAGUCHI, Shinji FUNAI
  • Publication number: 20160007500
    Abstract: A power converter apparatus is provided, which includes a horizontal switching device, a control switching device connected with the horizontal switching device and for controlling drive of the horizontal switching device, and a heat insulating member disposed between the horizontal switching device and the control switching device and for reducing that heat generated from the horizontal switching device is transferred to the control switching device.
    Type: Application
    Filed: September 15, 2015
    Publication date: January 7, 2016
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kiyonori KOGUMA, Yu UJITA, Yoshifumi YAMAGUCHI, Tomokazu HONDA, Akira SASAKI
  • Publication number: 20160006370
    Abstract: A power conversion apparatus includes: a first conductive member; a horizontal switching element disposed on the first conductive member; an insulating member disposed on the first conductive member; and a control switching element disposed on the first conductive member via the insulating member, the control switching element being coupled to the horizontal switching element and configured to control driving of the horizontal switching element.
    Type: Application
    Filed: September 17, 2015
    Publication date: January 7, 2016
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Tomokazu HONDA, Akira SASAKI, Kiyonori KOGUMA, Yoshifumi YAMAGUCHI, Yu UJITA
  • Publication number: 20150171764
    Abstract: A power conversion apparatus includes: a horizontal switching element with a front face and a rear face, the horizontal switching element including a first electrode and a second electrode on a front face side; a snubber capacitor; and a connecting conductor arranged to be interposed between the horizontal switching element and the snubber capacitor and electrically connecting the horizontal switching element to the snubber capacitor.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yu UJITA, Tomokazu HONDA, Akira SASAKI, Yoshifumi YAMAGUCHI, Kiyonori KOGUMA, Kunihiro TAKENAKA
  • Publication number: 20150078044
    Abstract: A power conversion apparatus includes: a horizontal switching element having a front surface and a rear surface, including a first electrode and a second electrode on the front surface, and having a first current path between the first electrode and the second electrode; a snubber capacitor electrically connected to the horizontal switching element; a first substrate on which the snubber capacitor is mounted, the first substrate being connected to the first electrode and the second electrode on the front surface of the horizontal switching element; and a second current path through which an electric current flows in a direction approximately opposite to the first current path that is a path allowing an electric current to flow between the first electrode and the second electrode of the horizontal switching element, the second current path being provided in the first substrate and disposed at a position opposite to the first current path.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yu UJITA, Kiyonori KOGUMA, Yoshifumi YAMAGUCHI, Tomokazu HONDA
  • Publication number: 20140288901
    Abstract: In a computer-aided die design apparatus having a computer, a display adapted to be connected to the computer, and a simulator adapted to be loaded in the computer to analyze and display on the display flow behavior of resin when the resin charged into a die cavity is die-clamped by a press at a compression force, the simulator comprises an analyzer that analyzes the resin flow behavior by increasing the compression force for die-clamping the resin at a predetermined time interval until the increased compression force reaches an upper limit value, and a substitutive value calculator that calculates a substitutive value of the compression force based on a stress-relaxation time of the resin when the compression force has reached the upper limit value.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masatoshi Kobayashi, Daiya Yamashita, Yoshifumi Yamaguchi
  • Patent number: D549261
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: August 21, 2007
    Assignee: Victor Company of Japan, Limited
    Inventors: Eiichiro Hayashi, Tatsuya Narita, Yoshifumi Yamaguchi
  • Patent number: D553606
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: October 23, 2007
    Assignee: Victor Company of Japan Limited
    Inventors: Yoshifumi Yamaguchi, Katsuyuki Kaneko, Junichi Ohshima
  • Patent number: D573579
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: July 22, 2008
    Assignee: Victor Company of Japan, Limited
    Inventor: Yoshifumi Yamaguchi