Patents by Inventor Takashi Ohta

Takashi Ohta 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: 20090131216
    Abstract: A vehicle drive unit control system. The vehicle includes a prime mover arranged on a power transmission route from a continuously variable transmission to a wheel, a clutch mechanism arranged on a first route from the prime mover to the wheel, and a shift range or shift position can be shifted selectively between a drive range or drive position where a power can be transmitted through the first route and a non-drive range or non-drive position where a power cannot be transmitted through the first route. The control system includes a vehicle speed control demand judging mechanism judging a vehicle speed control demand in case of shifting the shift range or shift position from the non-drive range or non-drive position to the drive range or drive position; and a prime mover controller controlling torque of the prime mover based on the judged vehicle speed control demand.
    Type: Application
    Filed: October 26, 2006
    Publication date: May 21, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tooru Matsubara, Takashi Ohta, Hideaki Komada, Yukihiko Ideshio, Hiroyuki Shibata
  • Patent number: 7521870
    Abstract: A luminous container has an electrode supporting member composed of a pipe-shaped metal piece. The electrode supporting member 8 has a clamped portion pressed and clamped with and non-clamped portions not clamped with a brittle material. The stress generated along a contact interface of the clamped portion and the brittle material is relaxed with the deformation of the electrode supporting member.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: April 21, 2009
    Assignees: NGK Insulators, Ltd., NGK Optoceramics Co., Ltd.
    Inventors: Keiichiro Watanabe, Takashi Ohta, Naoki Masui
  • Publication number: 20090011887
    Abstract: In a hybrid driving apparatus, a gear mechanism (3) having a first rotating element (7), a second rotating element (4) and a third rotating element (5) is provided, and a first driving power source (2), a second driving power source MG1 and a third driving power source MG2 are linked to the elements of the gear mechanism (3). The speed change ratio of the gear mechanism (3) can be altered. A driven member (18) to which the power output from an output element of the gear mechanism (3) is transmitted is provided. A first power transmission path (9) that connects the second driving power source MG1 to the driven member (18) is provided. A second power transmission path (17) that connects the third driving power source MG2 to the driven member (18) is provided. In this hybrid driving apparatus, at least one of the first power transmission path (9) and the second power transmission path (17) is provided with a transmission (19).
    Type: Application
    Filed: March 14, 2007
    Publication date: January 8, 2009
    Inventors: Hideaki Komada, Yukihiko Ideshio, Tooru Matsubara, Takashi Ohta, Hiroyuki Shibata, Hidehiro Oba
  • Publication number: 20080083579
    Abstract: In response to a start-engagement operation command, the control procedure of the invention starts increasing a hydraulic pressure applied to a clutch when a reference time Tc0 decreases to or below a required hydraulic pressure change time Tc1. Here the reference time Tc0 is calculated from a previously learnt time correction value Tc2 and a rotation speed difference between a rotation speed Nin of an input shaft and a rotation speed Ne of an engine (steps S150 to S190). The control procedure learns and updates the time correction value Tc2 according to a variation in acceleration of a vehicle possibly arising in the course of engagement of the clutch (steps S210 to S300). Such learning of the time correction value Tc2 effectively corrects the engagement timing of the clutch, which may be varied by ageing or another cause, to an adequate level.
    Type: Application
    Filed: May 31, 2006
    Publication date: April 10, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Okuda, Takashi Ohta, Hiroaki Ebuchi
  • Publication number: 20080039281
    Abstract: Whether the master cylinder pressure Pm of the brake master cylinder is higher than the reference pressure Pmref is determined (step S 120). Based on the determination, the lock-up clutch of the torque converter is promptly released (step S130) or gradually released (step S140). Whether the master cylinder pressure Pm is higher than the reference pressure Pmref is determined (step S160). Based on the determination, the connection provided by the clutch is promptly terminated (step S170), or gradually terminated (step S180). Because the lock-up clutch is released and the connection provided by the clutch is terminated based on the operation of the brake pedal performed by the driver, a sense of discomfort felt by the driver can be suppressed.
    Type: Application
    Filed: December 22, 2005
    Publication date: February 14, 2008
    Inventors: Koichi Okuda, Takashi Ohta, Shuji Nagano
  • Patent number: 7308999
    Abstract: A die bonding apparatus for die bonding at least two members, which are heated in a heat treatment furnace, comprising a first member having a surface to be die bonded on which solder is disposed and a second member disposed to face the first member in a state in which the solder disposed on the surface of the first member to be die bonded is interposed therebetween, and a base portion for mounting the first member thereon in a predetermined position, wherein the base portion has a temperature distribution so that a temperature of a vicinity of a central portion in a predetermined direction of the base portion is higher than that of a vicinity of an end portion of the base portion in a state in which heating is effected in the heat treatment furnace to, so that it is possible to suppress the occurrence of bubbles in the solder.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: December 18, 2007
    Assignee: Fujitsu Ten Limited
    Inventors: Toshihiko Fujii, Takashi Ohta, Shinichi Sugiura, Toshimasa Akamatsu, Katsufumi Morimune
  • Publication number: 20070250835
    Abstract: MEANS FOR SOLVING PROBLEMS A grid computing system having a plurality of information processing apparatuses, each of which comprises an index value storing part for storing an index value indicative of the throughput of the information processing apparatus itself; a request acquiring part for acquiring a job execution request that requests an execution of a job; a job executing part for executing the job, based on the index value stored in the index value storing part and also based on the process contents of the job, if determining that the job is to be executed in the foregoing information processing apparatus; and a request transmitting part for forwarding the job execution request to another information processing apparatus connected to the foregoing information processing apparatus if determining that the job is not to be executed in the foregoing information processing apparatus.
    Type: Application
    Filed: May 11, 2005
    Publication date: October 25, 2007
    Inventors: Seiji Kobayashi, Takashi Ohta, Kazuo Iwano
  • Publication number: 20070189570
    Abstract: An earphone device includes a housing having a driver unit, and a sound guide tube mounted on a front surface of the housing to protrude from the front surface, in which the sound guide tube is disposed at a position deviated from a center position of the housing.
    Type: Application
    Filed: January 10, 2007
    Publication date: August 16, 2007
    Inventors: Tomohiro Matsuo, Takashi Ohta, Koji Nageno, Tomohiro Ito
  • Patent number: 7185425
    Abstract: By forming a terminal at a tip of a lead part of a lead frame, and by fixing this terminal and a connecting pad which was formed on an upper surface of a first printed circuit board, the lead frame is attached to the first printed circuit board. By cutting off a frame part and a tie bar part from the lead frame which was attached to the first printed circuit board, the lead part is separated, and forming is applied to the lead part so as for its tip to be extended over the first printed board. After the lead part which is expanded upward is inserted into a through-hole which was opened in a second printed circuit board, by soldering the lead part and the through-hole, the first printed circuit board and the second printed circuit board are electrically connected.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: March 6, 2007
    Assignees: Fujitsu Ten Limited, Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Ohta, Kazuaki Yamada, Kiyoshi Tsujii, Hidekazu Manabe
  • Patent number: 7184565
    Abstract: In order to provide headphones with a cord-winding mechanism capable of favorably retracting and winding a cord, a cord-winding mechanism is incorporated in either or both of the casings of housings 1L and 1R constituting headphones; and a lock is released by joining the left and right casings together, so that the cord is retracted and wound.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: February 27, 2007
    Assignee: Sony Corporation
    Inventor: Takashi Ohta
  • Patent number: 7174979
    Abstract: There is provided a hybrid car which includes an internal combustion engine; an electric motor disposed coaxially with a rotary shaft of the internal combustion engine; a planetary gear mechanism which is disposed coaxially with the rotary shaft of the internal combustion engine and the rotary shaft of the electric motor, and is comprised of a sun gear, a ring gear, planetary pinions, and a carrier supporting the planetary pinions; a transmission comprising an input shaft to which power is transmitted from said internal combustion engine and said electric motor via said planetary gear mechanism and an output shaft connected to driving wheels; and a rotation restricting device that properly restricts rotation of a rotor of the electric motor.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: February 13, 2007
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Takashi Ohta, Yuji Suzuki, Kazuchika Tashima, Keiichi Kaneshige, Hatsuki Morinaga
  • Patent number: 7147485
    Abstract: A wiring connection method includes the steps of connecting a bus bar for wiring inside an electronic apparatus and a harness for leading out wiring to outside, placing the bus bar and the harness connected together on a botch portion of a housing, and filling a resin to fix the harness in the notch portion of the housing.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: December 12, 2006
    Assignee: Fujitsu Ten Limited
    Inventors: Takashi Ohta, Hiroshi Moriguchi
  • Publication number: 20060235596
    Abstract: A controller for a continuously variable transmission (CVT) mounted in a vehicle. The controller includes a first setting unit for setting a basic speed ratio of the CVT; a second setting unit for setting an adjustment speed ratio of the CVT; and a control unit for controlling the CVT based on the basic speed ratio and adjustment speed ratio. The second setting unit includes an increasing unit for progressively increasing the adjustment speed ratio according to a decrease in a target torque interrelated value in a first operating area, and a decreasing unit for progressively decreasing the adjustment speed ratio according to a decrease in the target torque interrelated value in a second operating area. Between the first operating area and the second operating area, the second setting unit maintains the adjustment speed ratio that is set finally.
    Type: Application
    Filed: April 13, 2006
    Publication date: October 19, 2006
    Inventors: Yuji Suzuki, Takashi Ohta, Yosuke Hanai, Hiroshi Izumi
  • Publication number: 20060221306
    Abstract: A projection type image display apparatus has: an illumination optical system generating illumination light; a projection optical system projecting an image light onto a screen; a digital micromirror device (DMD) modulating the illumination light so as to form the image light; and a reflection mirror arranged in a position opposite to an optical path of the illumination light entering the DMD. The reflection mirror reflects an off-light reflected by the DMD in an “OFF” state in a direction separated from a projection light reflected by the DMD in an “ON” state.
    Type: Application
    Filed: March 20, 2006
    Publication date: October 5, 2006
    Inventors: Tomokazu Masubuchi, Atsushi Matsuura, Satoshi Onishi, Kohei Wataru, Takashi Ohta
  • Patent number: 7066609
    Abstract: In a projection-type display apparatus that directs light from a light source through the illumination optical system to a display panel so that an image displayed on the display panel illuminated by the light directed thereto is projected through a projection optical system onto a screen, an illumination optical system is used that has a light intensity uniformizing device of which the entrance surface is located at a first conjugate position substantially conjugate with the light source and of which the exit surface has a shape geometrically similar to the panel surface of the display panel and a reflection optical system for forming an image of the exit surface of the light intensity uniformizing device on the panel surface of the display panel. In the reflection optical system, every surface having an optical power is a reflective surface.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: June 27, 2006
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Jun Ishihara, Yasumasa Sawai, Takashi Ohta
  • Patent number: 7006355
    Abstract: An electronic control unit 31 for mounting on a vehicle include a control portion 32 and a power portion 33 which are separate from each other, and are combined together. A control board 40 is mounted on a control connector-incorporating casing 34, having control connectors 35 and 36 formed integrally thereon, thereby forming the control portion 32. Connection terminals 41 on the control board 40 are soldered to connector connection terminals 37 and 38, embedded in the casing 34, and connection terminals 42 on the control board 40 are soldered to relay connection terminals 39 embedded in the casing 34. Power parts 57 and 58 are mounted on a power connector-incorporating casing 54, having power connectors 55 and 56 formed integrally thereon, and further a heatsink is mounted on the casing 54, thereby forming the power portion 33. An intermediate layer 51 can be provided between the control portion 32 and the power portion 33. Parts can be mounted on the intermediate layer 51.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: February 28, 2006
    Assignee: Fujitsu Ten Limited
    Inventors: Hiroyuki Wakabayashi, Takashi Ohta
  • Publication number: 20060022596
    Abstract: A luminous container 1A has an electrode supporting member 8 composed of a plate-shaped metal piece. The electrode supporting member 8 has a clamped portion 8b pressed and clamped with and non-clamped portions 8a and 8c not clamped with a brittle material. The stress generated along a contact interface of the clamped portion 8b and the brittle material is relaxed with the deformation of the electrode supporting member 8.
    Type: Application
    Filed: June 3, 2005
    Publication date: February 2, 2006
    Applicants: NGK Insulators, Ltd., NGK Optoceramics Co., Ltd.
    Inventors: Keiichiro Watanabe, Takashi Ohta, Naoki Masui
  • Publication number: 20060013429
    Abstract: In order to provide headphones with a cord-winding mechanism capable of favorably retracting and winding a cord, a cord-winding mechanism is incorporated in either or both of the casings of housings 1L and 1R constituting headphones; and a lock is released by joining the left and right casings together, so that the cord is retracted and wound.
    Type: Application
    Filed: August 11, 2004
    Publication date: January 19, 2006
    Applicant: SONY CORPORATION
    Inventor: Takashi Ohta
  • Patent number: D539263
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: March 27, 2007
    Assignee: Fujitsu Ten Limited
    Inventors: Takashi Ohta, Kaede Motoyama
  • Patent number: D550647
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: September 11, 2007
    Assignee: Fujitsu Ten Limited
    Inventors: Takashi Ohta, Kaede Motoyama