Patents by Inventor Akihiko Yasuda

Akihiko Yasuda 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).

  • Position management method, position management system, and position management program providing position information to server using mobile communication apparatus carried by user in vehicle
    Patent number: 10623886
    Abstract: A position management method according to one or more embodiments may use a mobile communication apparatus that is capable of obtaining position information. The method may include: receiving, by the mobile communication apparatus, a communication signal transmitted from an onboard communication device provided in a vehicle; and transmitting, from the mobile communication apparatus that receives the communication signal, the obtained position information to a management server.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: April 14, 2020
    Assignee: SYSMEX CORPORATION
    Inventor: Akihiko Yasuda
  • POSITION MANAGEMENT METHOD, POSITION MANAGEMENT SYSTEM, POSITION MANAGEMENT PROGRAM AND MOBILE COMMUNICATION APPARATUS
    Publication number: 20180302742
    Abstract: A position management method according to one or more embodiments may use a mobile communication apparatus that is capable of obtaining position information. The method may include: receiving, by the mobile communication apparatus, a communication signal transmitted from an onboard communication device provided in a vehicle; and transmitting, from the mobile communication apparatus that receives the communication signal, the obtained position information to a management server.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 18, 2018
    Applicant: SYSMEX CORPORATION
    Inventor: Akihiko YASUDA
  • Control circuit for supplying a driving current to a laser diode
    Patent number: 5732096
    Abstract: The control circuit for supplying a driving current to a laser diode makes it possible to keep the laser driving current variable in a wide range.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: March 24, 1998
    Assignee: Fujitsu Limited
    Inventors: Kazuhiro Suzuki, Hiroshi Kuzukami, Yuji Miyaki, Akihiko Yasuda, Yoshinori Ohkuma
  • Light-receipt system with current bias circuit and pre-amplifier for use in optical digital communication
    Patent number: 5625181
    Abstract: A light receipt system has a bias circuit and a light-receipt element. The bias circuit controls light input power to the light-receipt element to the optimum multiplication factor. The bias circuit of the light-receipt element has a first resistor, a second resistor, and a third resistor. The first resistor and the second resistor are connected in parallel, and the light-receipt element is connected between a connection of the first resistor and the second resistor, and the third resistor. A bypass current path is provided, connected to a junction point between the first resistor and the second resistor.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: April 29, 1997
    Assignee: Fujitsu Limited
    Inventors: Akihiko Yasuda, Setsuo Misaizu, Hisaya Sakamoto, Yuji Miyaki, Norio Nagase, Hiroshi Kuzukami
  • Water heater
    Patent number: 4444156
    Abstract: A water heater of the combustion type having a collecting assembly for collecting the drain water resulting from combustion to prevent corrosion of components of the heater by the drain water.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: April 24, 1984
    Assignee: Kabushiki Kaisha Youei Seisakusho
    Inventors: Yasutaka Iwasaki, Mitsuru Tanaka, Akihiko Yasuda, Munetaka Kinugasa, Toshihiko Kikuchi, Masao Maruyama