Patents by Inventor Keiichiro OOKAWA

Keiichiro OOKAWA 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).

  • Battery controller
    Patent number: 9952288
    Abstract: Provided is a battery control device which can verify a probability of a state of charge or a state of health of a battery. A battery controller according to the invention calculates a measurement parameter of the battery using the state of charge or the state of health of the battery, and the probability of the state of charge or the state of health is diagnosed by comparing the measurement results (see FIGS. 9(a) and 9(b)).
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: April 24, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Ryohei Nakao, Yohei Kawahara, Akihiko Kudou, Keiichiro Ookawa, Naoyuki Igarashi
  • BATTERY CONTROLLER
    Publication number: 20150369873
    Abstract: Provided is a battery control device which can verify a probability of a state of charge or a state of health of a battery. A battery controller according to the invention calculates a measurement parameter of the battery using the state of charge or the state of health of the battery, and the probability of the state of charge or the state of health is diagnosed by comparing the measurement results (see FIGS. 9(a) and 9(b)).
    Type: Application
    Filed: February 5, 2013
    Publication date: December 24, 2015
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Ryohei NAKAO, Yohei KAWAHARA, Akihiko KUDOU, Keiichiro OOKAWA, Naoyuki IGARASHI