Patents by Inventor Akihiko Ujiie

Akihiko Ujiie 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: 10442374
    Abstract: According to one embodiment, a vehicle-use storage battery system includes a storage battery, a main circuit, a circuit breaker, a storage battery management unit, a first determiner, and a second determiner. The main circuit is electrically connected to the storage battery. The circuit breaker is disposed between the storage battery and the main circuit to make or break the electrical connection therebetween. The storage battery management unit manages an operating state of the storage battery. The first determiner determines whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker. The second determiner determines, on the basis of at least one of operating states of the storage battery management unit, the first determiner, and the circuit breaker, whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: October 15, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Atsumi Kondo, Kazuto Kuroda, Tatsuya Arai, Masaki Sato, Akinobu Nishikawa, Shinichiro Kosugi, Masahiro Sekino, Hideaki Yasui, Mai Honda, Masahiro Kurosu, Kotaro Ogawa, Tomonao Takamatsu, Mitsunobu Yoshida, Takafumi Nakahama, Akihiko Ujiie
  • Patent number: 10340564
    Abstract: According to one embodiment, a vehicular storage battery device includes a housing, battery boxes, and a common cooling passage. The battery boxes are disposed in the housing. Each of the battery boxes houses an electric cell as a vehicle power source and includes a heat transporting part transporting heat generated in the battery box to outside of the battery box. The common cooling passage is disposed in the housing. The common cooling passage is provided with an inlet for taking in a fluid and an outlet for discharging the fluid having passed through the passage. The inlet and the outlet are open in a direction different from a traveling direction of the vehicle. The heat transporting part of each of the battery boxes is exposed to inside of the passage.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: July 2, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akinobu Nishikawa, Shigeki Kono, Masaki Sato, Tatsuya Arai, Kotaro Ogawa, Shinichiro Kosugi, Masahiro Sekino, Kazuto Kuroda, Hideaki Yasui, Mai Honda, Tomonao Takamatsu, Mitsunobu Yoshida, Takafumi Nakahama, Akihiko Ujiie, Atsumi Kondo, Masahiro Kurosu
  • Publication number: 20170282820
    Abstract: According to one embodiment, a vehicle-use storage battery system includes a storage battery, a main circuit, a circuit breaker, a storage battery management unit, a first determiner, and a second determiner. The main circuit is electrically connected to the storage battery. The circuit breaker is disposed between the storage battery and the main circuit to make or break the electrical connection therebetween. The storage battery management unit manages an operating state of the storage battery. The first determiner determines whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker. The second determiner determines, on the basis of at least one of operating states of the storage battery management unit, the first determiner, and the circuit breaker, whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker.
    Type: Application
    Filed: December 9, 2014
    Publication date: October 5, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Atsumi KONDO, Kazuto KURODA, Tatsuya ARAI, Masaki SATO, Akinobu NISHIKAWA, Shinichiro KOSUGI, Masahiro SEKINO, Hideaki YASUI, Mai HONDA, Masahiro KUROSU, Kotaro OGAWA, Tomonao TAKAMATSU, Mitsunobu YOSHIDA, Takafumi NAKAHAMA, Akihiko UJIIE
  • Publication number: 20170263985
    Abstract: According to one embodiment, a vehicular storage battery device includes a housing, battery boxes, and a common cooling passage. The battery boxes are disposed in the housing. Each of the battery boxes houses an electric cell as a vehicle power source and includes a heat transporting part transporting heat generated in the battery box to outside of the battery box. The common cooling passage is disposed in the housing. The common cooling passage is provided with an inlet for taking in a fluid and an outlet for discharging the fluid having passed through the passage. The inlet and the outlet are open in a direction different from a traveling direction of the vehicle. The heat transporting part of each of the battery boxes is exposed to inside of the passage.
    Type: Application
    Filed: January 6, 2015
    Publication date: September 14, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akinobu NISHIKAWA, Shigeki KONO, Masaki SATO, Tatsuya ARAI, Kotaro OGAWA, Shinichiro KOSUGI, Masahiro SEKINO, Kazuto KURODA, Hideaki YASUI, Mai HONDA, Tomonao TAKAMATSU, Mitsunobu YOSHIDA, Takafumi NAKAHAMA, Akihiko UJIIE, Atsumi KONDO, Masahiro KUROSU
  • Publication number: 20160211494
    Abstract: According to one embodiment, a railroad storage battery device includes a first and second resin assembled battery boxes, a battery management unit, and a metal box mountable on a railroad vehicle via an insulating member. The first resin assembled battery box possesses a certain insulating property and accommodates a first battery cell group and a first cell monitoring device monitoring charge and discharge of battery cells. The second resin assembled battery box possesses a certain insulating property and accommodates a second battery cell group connected in series with the first battery cell group and a second cell monitoring device monitoring charge and discharge of the battery cells. The battery management unit controls the first and second cell monitoring devices. The metal box accommodates the first and second assembled battery boxes and the battery management unit.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 21, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Kurosu, Shinichiro Kosugi, Masahiro Sekino, Kazuto Kuroda, Hideaki Yasui, Mai Honda, Masaki Sato, Tatsuya Arai, Akinobu Nishikawa, Kotaro Ogawa, Tomonao Takamatsu, Mitsunobu Yoshida, Takafumi Nakahama, Akihiko Ujiie, Atsumi Kondo
  • Publication number: 20120146406
    Abstract: An electric vehicle control device wherein: AC power generated by an AC synchronous generator is converted to DC power by a converter; the DC power converted by the converter is converted to AC power by an inverter, and is supplied to a vehicle drive motor constituting a motive power source for driving an electric vehicle; the DC power converted by the converter is converted to AC power by an auxiliary power source device and supplied to a CVCF load, an auxiliary device capable of withstanding harmonics being connected in series with the AC synchronous generator.
    Type: Application
    Filed: July 6, 2010
    Publication date: June 14, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Min Lin, Mitsuhiro Numazaki, Akihiko Ujiie, Yosuke Nakazawa