Patents by Inventor Naoyuki Noguchi
Naoyuki Noguchi 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: 7969148Abstract: A magnetic sensor device may include “A”-phase magnetic resistance pattern and “B”-phase magnetic resistance pattern which are provided with a phase difference of 90° from each other; wherein the “A” pattern is provided with “+a” phase magnetic resistance pattern and “?a” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of a magnetic scale, and the “B” pattern is provided with “+b” phase magnetic resistance pattern and “?b” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of the magnetic scale, and the “+a” pattern, the “?a” pattern, the “+b” pattern and the “?b” pattern are formed on a same face of one piece of board so that the “+a” pattern and the “?a” pattern are diagonally located and the “+b” pattern and the “?b” pattern are diagonally located.Type: GrantFiled: March 5, 2007Date of Patent: June 28, 2011Assignee: Nidec Sankyo CorporationInventors: Naoyuki Noguchi, Katsuya Moriyama, Teruhiko Otaki, Fusayoshi Argua, Toshio Mizoguchi
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Publication number: 20100176801Abstract: In a magnetic encoder (1), a permanent magnet (20) as a magnetic scale is provided with three rows of tracks (21) wherein N poles and S poles are alternately arranged along a shift direction. In the permanent magnet (20), at end portions (211) in the width direction of the tracks (21A, 21B, 21C), a rotating magnetic field wherein a planar direction changes is formed, and a sensor plane (16) of a magnetic sensor (15) faces a boundary portion (212) between the tracks (21A, 21B, 21C). Thus, detection accuracy of the magnetic encoder of the rotating magnetic field detection type is improved.Type: ApplicationFiled: July 4, 2006Publication date: July 15, 2010Applicant: NIDEC SANKYO CORPORATIONInventors: Fusayoshi Aruga, Katsuya Moriyama, Naoyuki Noguchi
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Publication number: 20100156400Abstract: A magnetic sensor device may include “A”-phase magnetic resistance pattern and “B”-phase magnetic resistance pattern which are provided with a phase difference of 90° from each other; wherein the “A” pattern is provided with “+a” phase magnetic resistance pattern and “?a” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of a magnetic scale, and the “B” pattern is provided with “+b” phase magnetic resistance pattern and “?b” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of the magnetic scale, and the “+a” pattern, the “?a” pattern, the “+b” pattern and the “?b” pattern are formed on a same face of one piece of board so that the “+a” pattern and the “?a” pattern are diagonally located and the “+b” pattern and the “?b” pattern are diagonally located.Type: ApplicationFiled: March 5, 2007Publication date: June 24, 2010Applicant: NIDEC SANYKO CORPORATIONInventors: Naoyuki Noguchi, Katsuya Moriyama, Teruhiko Otaki, Fusayoshi Aruga, Toshio Mizoguchi
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Publication number: 20060077032Abstract: A magnetoresistive element may include an A-phase magnetoresistive pattern which outputs a signal, a B-phase magnetoresistive pattern which outputs another signal whose phase is different by 90° from a phase of the signal outputted from the A-phase magnetoresistive pattern, a first substrate on which the A-phase magnetoresistive pattern is formed, and a second substrate on which the B-phase magnetoresistive pattern is formed. At least one of the first and the second substrates may include a transparent substrate.Type: ApplicationFiled: September 14, 2005Publication date: April 13, 2006Inventors: Shogo Momose, Masao Takemura, Fusayoshi Aruga, Naoyuki Noguchi, Teruhiko Otaki
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Patent number: 5311737Abstract: An exhaust purification apparatus for an engine uses a catalytic converter provided in an exhaust system of the engine. First and second exhaust sensors are provided on upstream and downstream sides, respectively, of the catalyst converter in the exhaust system. Detected values from the first and second exhaust sensors are used for feed back control of air fuel ratio and judging deterioration of the catalyst of the catalytic converter, respectively. A control constant of the air fuel ratio of the feed back control is changed so that the second exhaust sensor detects in accordance with a condition of the catalyst.Type: GrantFiled: March 30, 1992Date of Patent: May 17, 1994Assignee: Mazda Motor CorporationInventors: Kazunari Komatsu, Kiyoshi Kuronishi, Naoyuki Noguchi, Hirofumi Nishimura
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Patent number: 5272632Abstract: In a vehicle provided with an automatic transmission, gear-shifting shock is suppressed by changing the engine output power in response to a gear-shifting. The change in the engine output power is terminated when the actual engine speed reaches a completion decision engine speed, which is determined so that it corresponds to the time when the gear-shifting is completed, which is based on the fact that the engine speed changes according to a certain characteristic curve during the gear-shifting. The engine speed at which the gear-shifting is actually completed is detected for each gear-shifting according to the change in the rotational speed of the engine during the gear-shifting, and the completion decision rotational speed for each gear-shifting is set through learning on the basis of the preceding engine speed at which the gear shifting was actually completed.Type: GrantFiled: April 6, 1993Date of Patent: December 21, 1993Assignee: Mazda Motor CorporationInventors: Naoyuki Noguchi, Eiji Kanehisa, Masaaki Tamekiyo, Seiji Makimoto
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Patent number: 5228287Abstract: An exhaust system for an automobile engine having two groups of cylinders has a catalytic device. Deterioration of the catalytic device is detected based on an oxygen level in exhaust gas passed through the catalytic device. A feedback control of an air-fuel ratio is conducted for the cylinder groups all together, based on either of the air-fuel ratios determined, based on emission levels of exhaust gas discharged, for one of two of the groups of cylinders, only when a specific vehicle driving condition is detected.Type: GrantFiled: June 29, 1992Date of Patent: July 20, 1993Assignee: Mazda Motor CorporationInventors: Kiyoshi Kuronishi, Kazunari Komatsu, Naoyuki Noguchi, Hirofumi Nishimura
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Patent number: 5115896Abstract: A vehicle is provided with an engine and an automatic transmission having a lockup mechanism which engages and disengages to directly connect and disconnect input and output shafts of a torque converter of the automatic transmission to and from each other. A control system for such a vehicle has a deceleration detecting circuit which detects that the engine is decelerating based on the engine speed and a throttle opening, and a lockup mechanism control circuit which causes the lockup mechanism to engage when the engine is decelerating and permits the same to disengage when the deceleration of the engine finishes. The control system inhibits the lockup mechanism control circuit from causing the lockup mechanism to disengage in a period in which the engine speed can temporarily fall because of the automatic transmission's shifting into neutral in the process of a downshift.Type: GrantFiled: February 27, 1991Date of Patent: May 26, 1992Assignee: Mazda Motor CorporationInventors: Naoyuki Noguchi, Kazuki Murakami, Eiji Kanehisa, Seiji Makimoto
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Patent number: 5085301Abstract: According to the lockup device of a fluid transmission under the present invention, at the decelerating running when the change rate of engine load exceeds a set value, a lockup control pattern is changed so that the area where the lockup device is controlled to perfect friction or to the specified friction force. By this change, at the decelerating running large engine brake force can be worked and a good feeling of deceleration can be given to a driver. In the case where fuel supply to the engine is suspended at the decelerating running of the engine, transmission of large engine brake force as mentioned above results in comparatively longer time of maintaining high engine speed and longer time of fuel supply cutting off, with consequent saving of fuel consumption. Moreover, by changing the target slip quantity to the increasing side at the accelerating running, torque increasing action at the accelerating running is displayed effectively and accelerability can be improved.Type: GrantFiled: September 26, 1990Date of Patent: February 4, 1992Assignees: Mazda Motor Corporation, Jatco CorporationInventors: Hiroyuki Imamura, Takafumi Kurata, Hiroaki Yokota, Naoyuki Noguchi
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Patent number: 4944199Abstract: A controller controls an engine in cooperation with an automatic transmission which is automatically locked when an operating speed of the engine is higher than a previously established transmission lockup speed. The controller includes an engine power increasing device when an operating engine speed becomes lower than the transmission lockup release speed. The transmission lockup release speed is corrected according to deceleration rates.Type: GrantFiled: July 29, 1988Date of Patent: July 31, 1990Assignee: Mazda Motor Corp.Inventors: Yoshinori Okino, Naoyuki Noguchi, Tatsuya Kita, Takuro Shigemura