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).
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Patent number: 10816092Abstract: 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: GrantFiled: August 7, 2018Date of Patent: October 27, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Masamichi Harada, Keiichi Nishiyama
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Publication number: 20190049001Abstract: 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: ApplicationFiled: August 7, 2018Publication date: February 14, 2019Inventors: Masamichi Harada, Keiichi Nishiyama
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Patent number: 9868442Abstract: 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: GrantFiled: August 28, 2014Date of Patent: January 16, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Atsushi Okabe, Ukyo Ogata, Keiichi Nishiyama
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Patent number: 9477231Abstract: 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: GrantFiled: January 21, 2013Date of Patent: October 25, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Satoru Miyata, Naoki Nishimura, Keiichi Nishiyama, Ryo Matsui, Tomoaki Ishikawa
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Publication number: 20160229406Abstract: 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: ApplicationFiled: August 28, 2014Publication date: August 11, 2016Applicant: HONDA MOTOR CO., LTD.Inventors: Atsushi Okabe, Ukyo Ogata, Keiichi Nishiyama
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Publication number: 20140163748Abstract: 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: ApplicationFiled: January 21, 2013Publication date: June 12, 2014Applicant: Honda Motor Co., Ltd.Inventors: Satoru Miyata, Naoki Nishimura, Keiichi Nishiyama, Ryo Matsui, Tomoaki Ishikawa
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Publication number: 20080010222Abstract: 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: ApplicationFiled: July 5, 2007Publication date: January 10, 2008Applicant: NEC ELECTRONICS CORPORATIONInventors: Keiichi NISHIYAMA, Kazuyoshi OHFUJI, Satoshi AKITA
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Patent number: 6571768Abstract: 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: GrantFiled: November 20, 2000Date of Patent: June 3, 2003Assignee: Toyota Jidosha Kabushiki KaishaInventor: Keiichi Nishiyama
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Patent number: 6353787Abstract: 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: GrantFiled: December 8, 2000Date of Patent: March 5, 2002Assignee: Toyota Jidosha Kabushiki KaishaInventor: Keiichi Nishiyama
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Publication number: 20010004028Abstract: 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: ApplicationFiled: December 8, 2000Publication date: June 21, 2001Applicant: Toyota Jidosha Kabushiki KaishaInventors: Kunihito Sato, Keiichi Nishiyama
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Publication number: 20010004723Abstract: 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: ApplicationFiled: December 8, 2000Publication date: June 21, 2001Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Keiichi Nishiyama
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Patent number: 5188488Abstract: 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: GrantFiled: July 10, 1992Date of Patent: February 23, 1993Assignee: Mitsubishi Materials CorporationInventors: Masaaki Nakayama, Masayuki Okawa, Keiichi Nishiyama
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Patent number: 5100268Abstract: 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: GrantFiled: June 14, 1990Date of Patent: March 31, 1992Assignee: Mitsubishi Materials CorporationInventors: Masaaki Nakayama, Masayuki Okawa, Keiichi Nishiyama