Patents by Inventor Keiichi Nishiyama

Keiichi Nishiyama 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: 10816092
    Abstract: A comparison determination unit of a hydraulic control device determines whether a characteristic abnormality occurs in at least one hydraulic sensor of an output pressure sensor and a lateral pressure sensor by comparing an output pressure detected by the output pressure sensor and a lateral pressure detected by the lateral pressure sensor. An individual determination unit determines whether the characteristic abnormality occurs in the hydraulic sensor as a determination target by individually determining whether the output pressure and the lateral pressure are out of a predetermined range. A characteristic abnormality detection unit determines the hydraulic sensor in which the characteristic abnormality occurs by using each determination result in the comparison determination unit and the individual determination unit.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: October 27, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masamichi Harada, Keiichi Nishiyama
  • Publication number: 20190049001
    Abstract: A comparison determination unit of a hydraulic control device determines whether a characteristic abnormality occurs in at least one hydraulic sensor of an output pressure sensor and a lateral pressure sensor by comparing an output pressure detected by the output pressure sensor and a lateral pressure detected by the lateral pressure sensor. An individual determination unit determines whether the characteristic abnormality occurs in the hydraulic sensor as a determination target by individually determining whether the output pressure and the lateral pressure are out of a predetermined range. A characteristic abnormality detection unit determines the hydraulic sensor in which the characteristic abnormality occurs by using each determination result in the comparison determination unit and the individual determination unit.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 14, 2019
    Inventors: Masamichi Harada, Keiichi Nishiyama
  • Patent number: 9868442
    Abstract: A control device for a vehicle including an engine, a transmission, a connector/disconnector, and control means, wherein the transmission is configured to change a speed of rotation by drive force of the engine and output the rotation. The connector/disconnector is configured to connect/disconnect transmission of the drive force from the engine to the transmission. The control means controls the engine, the transmission, and the connector/disconnector. In the vehicle control device, in a case where the control means performs idle neutral control by controlling the connector/disconnector to a released state after making the engine return from an idle stop state, the control means makes a determination as to performance of the idle neutral control when it is determined that a rotational speed of the engine is stabilized.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: January 16, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Atsushi Okabe, Ukyo Ogata, Keiichi Nishiyama
  • Patent number: 9477231
    Abstract: A control system for a variable displacement pump driven by a drive source for driving a vehicle is provided. The variable displacement pump pressurizes hydraulic oil, and is switchable between a full capacity operation in which a discharge flow rate is maximized and a partial capacity operation in which the discharge flow rate is lower than that in the full capacity operation. It is determined whether an operation for starting the drive source has been performed. A rotational speed of the drive source and a temperature of the hydraulic oil are detected. When the rotational speed of the drive source is equal to or higher than a predetermined rotational speed and the hydraulic oil temperature is equal to or lower than a predetermined temperature, immediately after the operation for starting the drive source is performed, the partial capacity operation of the variable displacement pump is performed.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: October 25, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoru Miyata, Naoki Nishimura, Keiichi Nishiyama, Ryo Matsui, Tomoaki Ishikawa
  • Publication number: 20160229406
    Abstract: A control device for a vehicle including an engine, a transmission, a connector/disconnector, and control means, wherein the transmission is configured to change a speed of rotation by chive force of the engine and output the rotation. The connector/disconnector is configured to connect/disconnect transmission of the chive force from the engine to the transmission. The control means controls the engine, the transmission, and the connector/disconnector. In the vehicle control device, in a case where the control means performs idle neutral control by controlling the connector/disconnector to a release side after making the engine return from an idle stop state, the control means makes a determination as to performance of the idle neutral control when it is determined that a rotational speed of the engine is stabilized.
    Type: Application
    Filed: August 28, 2014
    Publication date: August 11, 2016
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Atsushi Okabe, Ukyo Ogata, Keiichi Nishiyama
  • Publication number: 20140163748
    Abstract: A control system for a variable displacement pump driven by a drive source for driving a vehicle is provided. The variable displacement pump pressurizes hydraulic oil, and is switchable between a full capacity operation in which a discharge flow rate is maximized and a partial capacity operation in which the discharge flow rate is lower than that in the full capacity operation. It is determined whether an operation for starting the drive source has been performed. A rotational speed of the drive source and a temperature of the hydraulic oil are detected. When the rotational speed of the drive source is equal to or higher than a predetermined rotational speed and the hydraulic oil temperature is equal to or lower than a predetermined temperature, immediately after the operation for starting the drive source is performed, the partial capacity operation of the variable displacement pump is performed.
    Type: Application
    Filed: January 21, 2013
    Publication date: June 12, 2014
    Applicant: Honda Motor Co., Ltd.
    Inventors: Satoru Miyata, Naoki Nishimura, Keiichi Nishiyama, Ryo Matsui, Tomoaki Ishikawa
  • Publication number: 20080010222
    Abstract: Marketing operation supporting system wherein a response for estimation may be returned as plural factors including circumstances of the client and the order receiving side and the future prospect. A marketing operation supporting server 30 includes a DB for correction 42 in addition to a DB for estimation 41 that calculates a prevailing price based at least on product specifications and on product quantities. The DB for correction 42 has set in it correction points associated with contents of a plurality of correction items not influencing the prevailing price. These correction items are items of attributes proper to matters relating to the estimation request. The marketing operation supporting server 30 returns a response for estimation at a special price corrected from the prevailing price using correction points associated with at least two correction items.
    Type: Application
    Filed: July 5, 2007
    Publication date: January 10, 2008
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Keiichi NISHIYAMA, Kazuyoshi OHFUJI, Satoshi AKITA
  • Patent number: 6571768
    Abstract: A vehicle deceleration force control device of the invention reduces deceleration force (assist braking force) during implementation of engine brake assist control over a predetermined time (t2-t0) when a vehicle state is changed to an acceleration state by operation of an accelerator. A change amount of the deceleration force over time during reduction is limited to a predetermined value or less. This predetermined value is set to a larger value the steeper the road gradient during hill descent and is set to a smaller value the steeper the road gradient during hill climbing. The vehicle deceleration force control device enables smooth acceleration when shifting from deceleration to acceleration.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: June 3, 2003
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Keiichi Nishiyama
  • Patent number: 6353787
    Abstract: The vehicle deceleration control apparatus adjusts the assist braking force to be applied to each wheel, by adjusting each linear valve and pressure-reducing valve forming the brake system of a vehicle according to shift-position information transmitted from an AT ECU (Automatic Transmission Electronic Control Unit). Thus, generation of driver's unintended assist braking force is controlled, whereby drivability is improved.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: March 5, 2002
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Keiichi Nishiyama
  • Publication number: 20010004028
    Abstract: The vehicle deceleration control apparatus according to the invention controls deceleration given to a vehicle according to a distance from a vehicle ahead, which is directly measured or estimated based on an accelerator operating condition, so that the smaller the distance from a vehicle ahead, the greater is an assist deceleration. The vehicle deceleration control apparatus is capable of giving an appropriate deceleration according to traffic conditions.
    Type: Application
    Filed: December 8, 2000
    Publication date: June 21, 2001
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kunihito Sato, Keiichi Nishiyama
  • Publication number: 20010004723
    Abstract: The vehicle deceleration control apparatus of the invention adjusts the assist braking force to be applied to each wheel, by adjusting each linear valve and pressure-reducing valve forming the brake system of a vehicle according to shift-position information transmitted from an AT ECU (Automatic Transmission Electronic Control Unit). Thus, generation of driver's unintended assist braking force is controlled, whereby drivability is improved.
    Type: Application
    Filed: December 8, 2000
    Publication date: June 21, 2001
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Keiichi Nishiyama
  • Patent number: 5188488
    Abstract: An end mill is disclosed which includes a tool body having a shaft-like shape. The tool body has a cutting edge portion formed at one end thereof. The cutting edge portion has a plurality of circumferential cutting edges formed on the circumference thereof along the longitudinal axis of the tool body. The end mill is characterized in that the cutting edge portion has the circumferential surface thereof which includes rake faces and flanks. Each of the rake faces adjoins one of two adjacent circumferential cutting edges. Each of the flanks intersects with one of the rake faces at one end and adjoins the other of the two adjacent circumferential cutting edges at the other end. The rake faces have a rake angle arranged between a range of 5.degree. to -45.degree. at a cross section perpendicular to the axis of the tool body. The flanks have a relief angle arranged between a range of 20.degree. to 45.degree. at a cross section perpendicular to the axis of the tool body.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: February 23, 1993
    Assignee: Mitsubishi Materials Corporation
    Inventors: Masaaki Nakayama, Masayuki Okawa, Keiichi Nishiyama
  • Patent number: 5100268
    Abstract: An insert clamped tool includes a tool holder, a cutting insert, a clamp and a pressing mechanism for pressing the clamp to urge the cutting insert against the bottom and the side walls of the insert-receiving pocket. The tool holder includes an insert-receiving pocket formed at a forward end thereof and having a bottom and side walls. The tool holder has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The cutting insert is received on the insert-receiving pocket. The clamp is held into abutting engagement with the cutting insert. The clamp has a sliding face held in contacting engagement with the inclined surface of the tool holder.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: March 31, 1992
    Assignee: Mitsubishi Materials Corporation
    Inventors: Masaaki Nakayama, Masayuki Okawa, Keiichi Nishiyama