Patents by Inventor Yutaka Komatsu

Yutaka Komatsu 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).

  • Publication number: 20100188181
    Abstract: An insulating member is provided with a rear surface section, a pair of side surface sections and a pair of column sections. The rear surface section is formed to be arranged between an edgewise coil and the yoke inner circumference surface of a stator core. The pair of side surface sections extend from the rear surface section to cover the side surfaces on the slot side of teeth and are formed flexibly in the facing directions. The pair of column sections extend from the rear surface section along the end surfaces on the coil end side of the teeth, while keeping spaces between the column sections and the side surface sections so as not to disturb deformation of the side surface sections.
    Type: Application
    Filed: June 10, 2008
    Publication date: July 29, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroaki Urano, Atomi Arakawa, Yutaka Komatsu
  • Patent number: 7714476
    Abstract: A core comprises a plurality of core split members having yoke portions and tooth portions and arranged in such a circumferential shape that the yoke portions contact with each other while the tooth portions being directed inward. The core further comprises a ring contacting with the yoke portions, and stoppers mounted on the outer face sides of the yoke portions for fixing the ring on the yoke portions. The yoke portions and the ring are formed in corrugated shape to mesh with each other, and the stoppers are formed with projections that engage with the inner side of the ring. This structure provides both the rotating electrical machine core having the core split members arranged in the circumferential shape and fastened to each other while preventing occurrence of a stress and a positional displacement between the core split members, and a rotating electrical machine.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: May 11, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Eisuke Hoshina, Toshiya Yamaguchi, Yasuhiro Endo, Kazutaka Tatematsu, Yutaka Komatsu
  • Publication number: 20090273245
    Abstract: A stator core is formed by arranging divided cores (20) in a circumference direction in cylindrical shape. On an upper end surface (60) of a core back (50) of the divided core, holes (62, 64) are made. Then, on the upper end surface, a reinforcing ring (40) having through holes (66, 68) is arranged, and is connected with rivets (70, 72). Thus, stress is transmitted not only through a side surface (58) but also through the reinforcing ring (40), between the adjacent divided cores. Thus, strength of the stator using a powder magnetic core is ensured and a space is saved.
    Type: Application
    Filed: June 14, 2007
    Publication date: November 5, 2009
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yasuhiro Endo, Kazutaka Tatematsu, Yutaka Komatsu
  • Publication number: 20090250271
    Abstract: A driving gear of a vehicle comprising a motor generator (MG2), a power control unit (21) for controlling the motor generator (MG2), and a case for containing the motor generator (MG2) and the power control unit (21). The power control unit (21) comprises a first inverter for driving the motor generator (MG2), and a voltage converter for applying power supply voltage to the first inverter after stepping it up. The voltage converter includes a reactor (L1). Heat of the reactor (L1) is dissipated using lubricant touching the reactor (L1) and the case as heat transfer agent. A circulation path of lubricant is formed in the case and the reactor is arranged on the circulation path.
    Type: Application
    Filed: October 27, 2006
    Publication date: October 8, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yutaka Komatsu, Yasuhiro Endo, Kazutaka Tatematsu, Takeshi Yamazaki, Hiromichi Kuno, Tadafumi Yoshida
  • Publication number: 20090085423
    Abstract: A core comprises a plurality of core split members having yoke portions and tooth portions and arranged in such a circumferential shape that the yoke portions contact with each other while the tooth portions being directed inward. The core further comprises a ring contacting with the yoke portions, and stoppers mounted on the outer face sides of the yoke portions for fixing the ring on the yoke portions. The yoke portions and the ring are formed in corrugated shape to mesh with each other, and the stoppers are formed with projections that engage with the inner side of the ring. This structure provides both the rotating electrical machine core having the core split members arranged in the circumferential shape and fastened to each other while preventing occurrence of a stress and a positional displacement between the core split members, and a rotating electrical machine.
    Type: Application
    Filed: January 15, 2007
    Publication date: April 2, 2009
    Inventors: Eisuke Hoshina, Toshiya Yamaguchi, Yasuhiro Endo, Kazutaka Tatematsu, Yutaka Komatsu
  • Publication number: 20090089737
    Abstract: A workflow system includes: a workflow storage that stores workflows built by connecting a plurality of tasks assigned to persons in charge, respectively; a task extracting unit that extracts at least one task from each of two or more of the workflows stored in the workflow storage; a site creation unit that creates a conference site of which an access authority is given to the persons in charge of the tasks extracted by the task extracting unit and in which electronic information is shared; and an access controller that controls access to the conference site created by the site creation unit in accordance with the authority.
    Type: Application
    Filed: March 21, 2008
    Publication date: April 2, 2009
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Yutaka Komatsu
  • Publication number: 20080270879
    Abstract: A computer-readable medium stores a program causing a computer to execute document processing. The document processing includes: acquiring document data including one or more pieces of attribute information; and acquiring attribute extraction information of each attribute information. Each attribute extraction information includes (i) extraction method information indicating an extraction method for extracting the corresponding attribute information from the document data, and (ii) position information that indicates a position of the corresponding attribute information in the document data, and corresponds to the extraction method indicated by the extraction method information for the corresponding attribute information. The document processing further includes registering attribute information that is extracted from the document data based on the attribute extraction information, as the attribute information of the document data.
    Type: Application
    Filed: April 1, 2008
    Publication date: October 30, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Yutaka Komatsu