Patents by Inventor Yasuo Uemura

Yasuo Uemura 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: 10202041
    Abstract: A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 12, 2019
    Assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd.
    Inventors: Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura, Tatsumi Yamauchi, Kenji Kubo, Masahito Sonehara, Masahiko Amano, Yoshinori Aoshima
  • Publication number: 20160303977
    Abstract: A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Inventors: Akihiko KUDO, Mutsumi KIKUCHI, Gosuke SHIBAHARA, Akihiko EMORI, Yasuo UEMURA, Tatsumi YAMAUCHI, Kenji KUBO, Masahito SONEHARA, Masahiko AMANO, Yoshinori AOSHIMA
  • Patent number: 9404975
    Abstract: A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: August 2, 2016
    Assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd.
    Inventors: Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura, Tatsumi Yamauchi, Kenji Kubo, Masahito Sonehara, Masahiko Amano, Yoshinori Aoshima
  • Patent number: 9035611
    Abstract: A battery system for a vehicle is provided with discharge circuits (R1, 129A through 129D, 128A through 128D) that discharge battery cells (BC1 through BC4) via measurement lines of those battery cells (BC1 through BC4).
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: May 19, 2015
    Assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd.
    Inventors: Mutsumi Kikuchi, Akihiko Kudo, Gosuke Shibahara, Yoshinori Aoshima, Kenji Kubo, Yasuo Uemura
  • Patent number: 8829717
    Abstract: A battery control device for a battery module includes a plurality of integrated circuits. Each integrated circuit includes: a constant voltage circuit that lowers a total voltage of a battery cell group corresponding to the integrated circuit to an integrated circuit internal voltage; a signal generation circuit that generates, based upon a first signal provided by a higher-order control circuit, a second signal assuming a wave height value different from a wave height value of the first signal and outputs the second signal; and a startup circuit that includes a first comparator assuming a first decision-making threshold value corresponding to the first signal and a second comparator assuming a second decision-making threshold value corresponding to the second signal, and starts up the constant voltage circuit in response to a change in an output from at least either the first comparator or the second comparator.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: September 9, 2014
    Assignee: Hitachi Vehicle Energy, Ltd.
    Inventors: Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura, Tatsumi Yamauchi, Kenji Kubo, Yoshinori Aoshima
  • Publication number: 20140159739
    Abstract: A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.
    Type: Application
    Filed: February 12, 2014
    Publication date: June 12, 2014
    Applicants: Hitachi Vehicle Energy, Ltd., Hitachi, Ltd.
    Inventors: Akihiko KUDO, Mutsumi KIKUCHI, Gosuke SHIBAHARA, Akihiko EMORI, Yasuo UEMURA, Tatsumi YAMAUCHI, Kenji KUBO, Masahito SONEHARA, Masahiko AMANO, Yoshinori AOSHIMA
  • Patent number: 8723527
    Abstract: A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: May 13, 2014
    Assignees: Hitachi, Ltd., Hitachi Vehicle Energy, Ltd.
    Inventors: Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura, Tatsumi Yamauchi, Kenji Kubo, Masahito Sonehara, Masahiko Amano, Yoshinori Aoshima
  • Publication number: 20120025769
    Abstract: A battery system for a vehicle is provided with discharge circuits (R1, 129A through 129D, 128A through 128D) that discharge battery cells (BC1 through BC4) via measurement lines of those battery cells (BC1 through BC4).
    Type: Application
    Filed: February 18, 2010
    Publication date: February 2, 2012
    Applicants: Hitachi Vehicle Energy, Ltd., Hitachi, LTD.
    Inventors: Mutsumi Kikuchi, Akihiko Kudo, Gosuke Shibahara, Yoshinori Aoshima, Kenji Kubo, Yasuo Uemura
  • Publication number: 20110193413
    Abstract: A battery control device for a battery module includes a plurality of integrated circuits. Each integrated circuit includes: a constant voltage circuit that lowers a total voltage of a battery cell group corresponding to the integrated circuit to an integrated circuit internal voltage; a signal generation circuit that generates, based upon a first signal provided by a higher-order control circuit, a second signal assuming a wave height value different from a wave height value of the first signal and outputs the second signal; and a startup circuit that includes a first comparator assuming a first decision-making threshold value corresponding to the first signal and a second comparator assuming a second decision-making threshold value corresponding to the second signal, and starts up the constant voltage circuit in response to a change in an output from at least either the first comparator or the second comparator.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 11, 2011
    Applicant: Hitachi Vehicle Energy, Ltd,
    Inventors: Akihiko KUDO, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura, Tatsumi Yamauchi, Kenji Kubo, Yoshinori Aoshima
  • Patent number: 7835604
    Abstract: The present invention provides a fiber Bragg grating element which is simply configured and capable of obtaining a high cut-off amount exceeding 40 dB in a wide range. A fiber Bragg grating element of the present invention has a plurality of gratings formed in an optical waveguide having a core and a cladding around the core thereby to perform high rejection filtering on an input optical signal over a desired bandwidth╦ť the gratings being formed with a grating pitch between adjacent two of the gratings increasing toward a center in a longitudinal direction of the optical waveguide.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: November 16, 2010
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Yasuo Uemura, Kazuhiko Kashima, Toshiyuki Inukai
  • Publication number: 20100244847
    Abstract: A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.
    Type: Application
    Filed: February 25, 2010
    Publication date: September 30, 2010
    Applicants: Hitachi, Ltd., Hitachi Vehicle Energy, Ltd.
    Inventors: Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura, Tatsumi Yamauchi, Kenji Kubo, Masahito Sonehara, Masahiko Amano, Yoshinori Aoshima
  • Publication number: 20090052828
    Abstract: The present invention provides a fiber Bragg grating element which is simply configured and capable of obtaining a high cut-off amount exceeding 40 dB in a wide range. A fiber Bragg grating element of the present invention has a plurality of gratings formed in an optical waveguide having a core and a cladding around the core thereby to perform high rejection filtering on an input optical signal over a desired bandwidth, the gratings being formed with a grating pitch between adjacent two of the gratings increasing toward a center in a longitudinal direction of the optical waveguide.
    Type: Application
    Filed: February 16, 2006
    Publication date: February 26, 2009
    Applicant: THE FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yasuo Uemura, Kazuhiko Kashima, Toshiyuki Inukai
  • Publication number: 20080212925
    Abstract: The present invention provides an optical fiber for a fiber Bragg grating having a high reliability and superior performance. An optical fiber according to the present invention has a glass film containing micro porous bodies formed on the circumference of the optical fiber having a photosensitive core or both of the photosensitive core and a cladding.
    Type: Application
    Filed: December 26, 2007
    Publication date: September 4, 2008
    Applicant: THE FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshihiro ARASHITANI, Kazuhiko Kashima, Yasuo Uemura, Mitsunori Okada
  • Patent number: 7362939
    Abstract: This invention relates to an optical fiber for long period grating (LPG), LPG components, and manufacturing method of LPG used as a mode coupler, an optical filter, etc. The optical fiber for LPG comprises a core layer, a first cladding layer that surrounds said core layer and transmits the cladding modes, and a second cladding layer that surrounds said first cladding layer and confines the optical signal of the cladding mode within said first cladding layer. The LPG component comprises an optical fiber for LPG, a coating reinforcement to cover and reinforce said optical fiber for LPG. The manufacturing method of LPG comprises a step of preparation of an optical fiber, a step of constructing the LPG on a predetermined region in said core of said optical fiber by irradiating laser light on said region over a predetermined period corresponding to the LPG, on the predetermined part of said optical fiber, and a step which covers and reinforces said grating region.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: April 22, 2008
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Toshiaki Tsuda, Yasuo Uemura, Keiichi Aiso, Takeshi Yagi, Yukio Niino, Kazuhiko Nishiyama, Hiroshi Kobayashi
  • Publication number: 20060140559
    Abstract: This invention relates to an optical fiber for long period grating (LPG), LPG components, and manufacturing method of LPG used as a mode coupler, an optical filter, etc. The optical fiber for LPG comprises a core layer, a first cladding layer that surrounds said core layer and transmits the cladding modes, and a second cladding layer that surrounds said first cladding layer and confines the optical signal of the cladding mode within said first cladding layer. The LPG component comprises an optical fiber for LPG, a coating reinforcement to cover and reinforce said optical fiber for LPG. The manufacturing method of LPG comprises a step of preparation of an optical fiber, a step of constructing the LPG on a predetermined region in said core of said optical fiber by irradiating laser light on said region over a predetermined period corresponding to the LPG, on the predetermined part of said optical fiber, and a step which covers and reinforces said grating region.
    Type: Application
    Filed: February 8, 2006
    Publication date: June 29, 2006
    Inventors: Toshiaki Tsuda, Yasuo Uemura, Keiichi Aiso, Takeshi Yagi, Yukio Niino, Kazuhiko Nishiyama, Hiroshi Kobayashi
  • Publication number: 20050270370
    Abstract: An image analysis device (100) integratively takes photographs within each well at a predetermined magnification. An image controlling device (200) communicates with the image analysis device (100) via a network (300) for acquiring the taken images and displays the same as thumbnails. On the display of the image controlling device (200), the operator designates locations of the sample to be photographed for each well. The image controlling device (200) informs the image analysis device (100) of the instructions for photographing in accordance with the designated conditions. The image analysis device (100) individually takes photographs in accordance with the locations and conditions designated by the image controlling device (200).
    Type: Application
    Filed: September 5, 2003
    Publication date: December 8, 2005
    Applicant: CELESTAR LEXICO-SCIENCES, INC.
    Inventors: Yasuo Uemura, Akira Kawamura
  • Publication number: 20050112577
    Abstract: A system according to the present invention is constituted so that an RNA sequence analyzer (100) that is an RNA sequence analyzer for analyzing sequence information, and an external system (200) that provides external databases related to the sequence information and the like, external analysis programs for homology searches, and the like are communicably connected to each other through a network (300).
    Type: Application
    Filed: January 6, 2003
    Publication date: May 26, 2005
    Inventors: Yasuo Uemura, Hisayuki Horai
  • Publication number: 20050107961
    Abstract: Genetic clones aligned on a multiwell plate are produced and a collection of genes expressed in a specific tissue are produced. Nucleotide sequences of genetic clones are determined. An analysis is performed based on the nucleotide sequences. An in situ hybridization experiment is conducted, and expression statuses of genes that correspond to the genetic clones in a specific cell, tissue or organ are examined.
    Type: Application
    Filed: February 18, 2003
    Publication date: May 19, 2005
    Inventors: Yasuo Uemura, Hirofumi Doi, Akira Kawamura
  • Publication number: 20040177082
    Abstract: A structured data described in a structured description language and a schema data that defines a structure of the structured data, are acquired from an external database. The structured data and the schema data are converted based on schema format conversion instruction information. The structured data and the schema data converted are registered in a database. A tool program and schema resource definition information are registered in a corresponding manner. When a tool program is started, the structured data and the schema data registered in the database are converted into a format suitable for the tool program, based on the schema resource definition information corresponding to the tool program. The structured data and the schema data after this conversion are input to the tool program.
    Type: Application
    Filed: December 11, 2003
    Publication date: September 9, 2004
    Inventors: Kiyoshi Nitta, Yasuo Uemura
  • Patent number: 5694509
    Abstract: An optical coupler to be used for optical telecommunications is disclosed, characterized by portions of exposed optical fiber sections located immediately adjacent to and outside the respective clots of the first adhesive agent as viewed from the welded optical fiber section being coated by a third adhesive agent having a Young's modulus smaller than that of the first adhesive agent.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: December 2, 1997
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Yasuo Uemura, Etuo Umehara, Kazuyuki Fukumura