Patents by Inventor Yohei Kawahara

Yohei Kawahara 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: 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
  • 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
  • Patent number: 8260375
    Abstract: An electronic device has a case that is formed by combining first and second members respectively having first and second engaging portions formed along an outer circumferential portion thereof such that the first and second members make contact with each other. The electronic device includes a corner engaging member having a rib, an outer supporting member and an inner supporting member. The rib is formed at a corner portion of the first engaging portion such that the rib is curved along the corner portion. The outer supporting member is formed at a corner portion of the second engaging portion, which corresponds to the corner portion of the first engaging portion. The outer supporting member makes contact with an outer circumferential surface of the rib. The inner supporting member makes line-contact with an inner circumferential surface of the rib. The rib is inserted between the outer supporting member and the inner supporting member.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: September 4, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaru Imaizumi, Yohei Kawahara, Koji Saito, Eiji Nakata
  • Patent number: 8006510
    Abstract: In an indoor equipment of an air conditioner in which a heat exchanger, a blower, and a drain pan receiving a drain water having been condensed at mentioned heat exchanger below the heat exchanger are contained in an internal part of the indoor equipment housing including an air inlet and an air outlet; and a back portion of the drain pan is faced to an air flow path communicating with mentioned air outlet, and a stabilizer is disposed at an end portion on the upstream side of the air flow path of this drain pan, the drain pan 4 is integrally formed of a drain pan body 41 and a stabilizer portion 42 by injection molding; and a concave portion 40 is formed on the air flow path side in the vicinity of the boundary between the drain pan body and the stabilizer portion.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: August 30, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Teruo Miyamoto, Mitsuhiro Shirota, Isao Okano, Masahiro Motooka, Tetsuya Tazawa, Shinsuke Nakahata, Yohei Kawahara
  • Publication number: 20080182633
    Abstract: An electronic device has a case that is formed by combining first and second members respectively having first and second engaging portions formed along an outer circumferential portion thereof such that the first and second members make contact with each other. The electronic device includes a corner engaging member having a rib, an outer supporting member and an inner supporting member. The rib is formed at a corner portion of the first engaging portion such that the rib is curved along the corner portion. The outer supporting member is formed at a corner portion of the second engaging portion, which corresponds to the corner portion of the first engaging portion. The outer supporting member makes contact with an outer circumferential surface of the rib. The inner supporting member makes line-contact with an inner circumferential surface of the rib. The rib is inserted between the outer supporting member and the inner supporting member.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 31, 2008
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masaru Imaizumi, Yohei Kawahara, Koji Saito, Eiji Nakata