Patents by Inventor Satoshi Yoshizaki
Satoshi Yoshizaki 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: 9581094Abstract: A target air amount for achieving a requested torque is calculated from the requested torque by using a virtual air-fuel ratio. The virtual air-fuel ratio is changed from a first air-fuel ratio to a second air-fuel ratio in response to a condition for switching an operation mode from an operation by the first air-fuel ratio to an operation by the second air-fuel ratio being satisfied. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, a target air-fuel ratio is switched from the first air-fuel ratio to the second air-fuel ratio. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, a target valve timing is switched from a first valve timing to a second valve timing.Type: GrantFiled: June 11, 2013Date of Patent: February 28, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke Saito, Satoru Tanaka, Satoshi Yoshizaki, Ryutaro Moriguchi, Yosuke Matsumoto, Noriyasu Adachi
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Publication number: 20160312734Abstract: An integrated control apparatus includes an internal combustion engine, a stepped automatic transmission, a power train manager, and an engine controller. The power train manager is configured to: output a target torque and a forenotice torque to the engine controller; start lowering of the target torque after a specified time elapses from a timing of an upshifting instruction; lower the forenotice torque prior to the lowering of the target torque. The engine controller is configured to: start a reduction in an air amount in accordance with a magnitude of lowering of the forenotice torque; start reducing the air amount from a time when the lowering of the forenotice torque is started until a time when the lowering of the target torque is started; and adjust an air-fuel ratio in accordance with a deviation between the target torque and a torque that is estimated from a lean air-fuel ratio and the air amount.Type: ApplicationFiled: April 22, 2016Publication date: October 27, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi YOSHIZAKI, Naoto KATO, Shigehiro SUGIHIRA
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Publication number: 20160284550Abstract: A manufacturing method for a semiconductor device, the method, comprising forming, on a substrate, a first resist pattern including a plurality of line patterns extending in a predetermined direction, injecting an impurity into the substrate by using the first resist pattern, removing the first resist pattern, forming a second resist pattern including a plurality of second line patterns extending in the predetermined direction, and injecting an impurity into the substrate by using the second resist pattern, wherein, in the forming the second resist pattern, the plurality of second line patterns are respectively formed between places where the adjacent first line patterns are formed.Type: ApplicationFiled: March 17, 2016Publication date: September 29, 2016Inventors: Mikio Arakawa, Satoshi Yoshizaki
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Patent number: 9441558Abstract: An object of this invention is, with respect to a torque-demand-control type controller that subjects two kinds of actuators provided upstream and downstream in an intake passage to coordinated operations based on a requested torque for an internal combustion engine, to enable realization of a pulse-like torque change in a torque decreasing direction that is requested, for example, when performing an upshift operation in an electronically controlled automatic transmission. To achieve this object, according to a controller for an internal combustion engine of this invention, when a pulse component in a torque decreasing direction is included in a requested torque, a second requested torque that does not include the pulse component is generated. In this case, a first actuator provided on the downstream side in the intake passage is operated based on the requested torque.Type: GrantFiled: June 4, 2012Date of Patent: September 13, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi Yoshizaki, Shinichi Soejima, Satoru Tanaka, Kiyonori Takahashi
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Patent number: 9437637Abstract: A method for manufacturing a semiconductor device comprising, forming a first photoresist pattern by exposing and then developing a first photoresist film formed on a substrate, irradiating the first photoresist pattern with UV light to cure its surface, forming a second photoresist film so as to cover the substrate and the first photoresist pattern, forming a second photoresist pattern and performing ion implantation in the substrate using the second photoresist pattern. The second photoresist pattern is not subjected to UV irradiation after the second photoresist film has been developed and before the ion implantation is performed, or is irradiated with the UV light, after the second photoresist film has been developed and before the ion implantation is performed, under a reduced condition relative to that for the first photoresist pattern.Type: GrantFiled: April 8, 2015Date of Patent: September 6, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Atsushi Kanome, Nobutaka Ukigaya, Koji Hara, Satoshi Yoshizaki, Masahiko Kondo
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Publication number: 20160153373Abstract: In response to increase of a requested torque to a reference value or more, a value of a virtual air-fuel ratio that is used in calculation of a target air amount for achieving the requested torque is changed from a first air-fuel ratio to a second air-fuel ratio that is leaner than the first air-fuel ratio. The target air amount is calculated backwards from the requested torque by using the virtual air-fuel ratio. After the value of the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, the target air-fuel ratio is switched from the first air-fuel ratio to the second air-fuel ratio. An operation amount of a fourth actuator that regulates an EGR rate is determined with use of a parameter corresponding to a fresh air rate in an exhaust gas and the virtual air-fuel ratio.Type: ApplicationFiled: July 9, 2013Publication date: June 2, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi YOSHIZAKI, Satoru TANAKA
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Patent number: 9353695Abstract: A control device acquires various requests concerning the performance of an internal combustion engine and sets a request-specific constraint on a control amount value. The constraint is expressed as a set of constraint index values assigned to individual control amount values, and the distribution of the constraint index values is varied in accordance with the type of a request. The control device integrates the constraint index values for each control amount value and then, in accordance with the distribution of the integrated constraint index value for a control amount, determines a limitation of the control amount. The control device determines a target control amount value within the limitation and controls the internal combustion engine in accordance with the target control amount.Type: GrantFiled: January 14, 2010Date of Patent: May 31, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kota Sata, Yasuhiro Oi, Shinichi Soejima, Koichi Ueda, Shuntaro Okazaki, Satoshi Yoshizaki
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Publication number: 20160123253Abstract: A target air amount for achieving a requested torque is calculated from the requested torque by using a virtual air-fuel ratio. The virtual air-fuel ratio is changed from a first air-fuel ratio to a second air-fuel ratio in response to a condition for switching an operation mode from an operation by the first air-fuel ratio to an operation by the second air-fuel ratio being satisfied. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, a target air-fuel ratio is switched from the first air-fuel ratio to the second air-fuel ratio. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, a target valve timing is switched from a first valve timing to a second valve timing.Type: ApplicationFiled: June 11, 2013Publication date: May 5, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke SAITO, Satoru TANAKA, Satoshi YOSHIZAKI, Ryutaro MORIGUCHI, Yosuke MATSUMOTO, Noriyasu ADACHI
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Publication number: 20160123246Abstract: A target air amount for achieving a requested torque is back-calculated from the requested torque using a virtual air-fuel ratio. The virtual air-fuel ratio is changed from a first air-fuel ratio to a second air-fuel ratio in response to a condition for switching an operation mode being satisfied. After the virtual air-fuel ratio is changed, the target air-fuel ratio is maintained at the first air-fuel ratio until the ignition timing reaches a retardation limit. Subsequently, in response to the ignition timing reaching the retardation limit, the target air-fuel ratio is switched from the first air-fuel ratio to a third air-fuel ratio. After switching of the target air-fuel ratio, in response to a difference between the target air amount and an estimated air amount becoming equal to or less than a threshold value, the target air-fuel ratio is switched from the third air-fuel ratio to the second air-fuel ratio.Type: ApplicationFiled: June 3, 2013Publication date: May 5, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke SAITO, Noriyasu ADACHI, Satoru TANAKA, Satoshi YOSHIZAKI, Ryutaro MORIGUCHI, Yosuke MATSUMOTO
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Publication number: 20160123252Abstract: A target first air amount for achieving a requested torque by an operation of an intake property variable actuator is calculated by using a first parameter. A target second air amount for achieving the requested torque by an operation of a turbocharging property variable actuator is calculated by using a second parameter. A value of a first parameter changes to a value that reduces a conversion efficiency of an air amount into torque in response to the requested torque decreasing to a first reference value or lower. Further, a value of the second parameter starts to change to a direction to reduce the conversion efficiency in response to the requested torque decreasing to a second reference value that is larger than the first reference value, or lower, and gradually changes to a direction to reduce the conversion efficiency in accordance with the requested torque further decreasing from the second reference value to the first reference value.Type: ApplicationFiled: June 6, 2013Publication date: May 5, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi YOSHIZAKI, Satoru TANAKA
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Publication number: 20160123250Abstract: A target air amount for achieving a requested torque is back-calculated from the requested torque using a virtual air-fuel ratio. The virtual air-fuel ratio is changed from a first air-fuel ratio to a second air-fuel ratio in response to a condition for switching an operation mode from operation in the first air-fuel ratio to operation in the second air-fuel ratio being satisfied. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, the target air-fuel ratio is changed in accordance with an air-fuel ratio efficiency within the range from the first air-fuel ratio to the second air-fuel ratio. The air-fuel ratio efficiency is calculated based on a proportion of the requested torque relative to a torque that can be achieved by means of a current estimated air amount under the theoretical air-fuel ratio and the optimal ignition timing.Type: ApplicationFiled: May 24, 2013Publication date: May 5, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yosuke MATSUMOTO, Satoru TANAKA, Satoshi YOSHIZAKI, Yusuke SAITO, Naoya TAKAGI, Noriyasu ADACHI, Ryutaro MORIGUCHI
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Publication number: 20160115892Abstract: A target air amount for achieving a requested torque is back-calculated from the requested torque using a parameter that provides a conversion efficiency of an air amount to torque. The value of the parameter gradually changes to lower the conversion efficiency as the requested torque decreases from a second reference value towards a first reference value. The first reference value is calculated based on the engine speed. The second reference value is calculated based on an air amount with which the first reference value is achieved under a second air-fuel ratio, and a first air-fuel ratio. The target air-fuel ratio is set to the first air-fuel ratio when the requested torque is greater than the first reference value, and is switched from the first air-fuel ratio to the second air-fuel ratio when the requested torque decreases to a value equal to or less than the first reference value.Type: ApplicationFiled: May 14, 2013Publication date: April 28, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoru TANAKA, Satoshi YOSHIZAKI
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Patent number: 9316163Abstract: An object of the present invention is to enable a requested efficiency by cylinder group that is requested from a viewpoint of exhaust gas performance to be realized precisely when an internal combustion engine having a single throttle shared by a plurality of cylinder groups, and having an exhaust gas purifying catalyst for each of the cylinder groups is operated at a different air-fuel ratio at each of the cylinder groups. To this end, a control device for the internal combustion engine provided by the present invention calculates an efficiency ratio of a representative efficiency determined based on the requested efficiency by cylinder group and a requested efficiency by cylinder group, and calculates a requested torque by cylinder group by dividing a requested torque by the efficiency ratio for each of the cylinder groups.Type: GrantFiled: August 31, 2011Date of Patent: April 19, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shuntaro Okazaki, Satoshi Yoshizaki
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Publication number: 20160090935Abstract: A target air amount for achieving a requested torque is back-calculated from the requested torque using a virtual air-fuel ratio. The virtual air-fuel ratio is changed from a first air-fuel ratio to a second air-fuel ratio in response to a condition for switching an operation mode from operation in the first air-fuel ratio to operation in the second air-fuel ratio being satisfied. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, an interval of time passes and the target air-fuel ratio is then switched from the first air-fuel ratio to a third air-fuel ratio that is an intermediate air-fuel ratio between the first air-fuel ratio and the second air-fuel ratio. The target air-fuel ratio is temporarily held at the third air-fuel ratio, and is thereafter switched from the third air-fuel ratio to the second air-fuel ratio.Type: ApplicationFiled: May 24, 2013Publication date: March 31, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoru TANAKA, Satoshi YOSHIZAKI, Yusuke SAITO, Ryutaro MORIGUCHI, Noriyasu ADACHI, Yosuke MATSUMOTO, Naoya TAKAGI
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Patent number: 9200562Abstract: An object of the present invention is to control a supercharge pressure in such a manner as not to interfere with warming-up of an exhaust gas purifying catalyst, in an internal combustion engine with a turbo supercharger. To this end, a control device for an internal combustion engine with a turbo supercharger provided by the present invention makes a determined value of a target supercharge pressure with respect to a same target intake pressure smaller when a request to warm up the exhaust gas purifying catalyst is present, as compared with when the request is absent. Note that the target intake pressure is determined based on a target air amount determined from a requested torque for the internal combustion engine. The present control device operates a throttle based on the target intake pressure and an actual supercharge pressure, and operates a wastegate valve based on the target supercharge pressure.Type: GrantFiled: August 23, 2011Date of Patent: December 1, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kiyonori Takahashi, Shinichi Soejima, Satoru Tanaka, Satoshi Yoshizaki
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Publication number: 20150301454Abstract: A method for manufacturing a semiconductor device comprising, forming a first photoresist pattern by exposing and then developing a first photoresist film formed on a substrate, irradiating the first photoresist pattern with UV light to cure its surface, forming a second photoresist film so as to cover the substrate and the first photoresist pattern, forming a second photoresist pattern and performing ion implantation in the substrate using the second photoresist pattern. The second photoresist pattern is not subjected to UV irradiation after the second photoresist film has been developed and before the ion implantation is performed, or is irradiated with the UV light, after the second photoresist film has been developed and before the ion implantation is performed, under a reduced condition relative to that for the first photoresist pattern.Type: ApplicationFiled: April 8, 2015Publication date: October 22, 2015Inventors: Atsushi Kanome, Nobutaka Ukigaya, Koji Hara, Satoshi Yoshizaki, Masahiko Kondo
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Patent number: 9157364Abstract: An object of the present invention is to control a supercharge pressure in such a manner as not to interfere with warming-up of an exhaust gas purifying catalyst, in an internal combustion engine with a turbo supercharger. To this end, a control device for an internal combustion engine with a turbo supercharger provided by the present invention makes a determined value of a target supercharge pressure with respect to a same target intake pressure smaller when a request to warm up the exhaust gas purifying catalyst is present, as compared with when the request is absent. Note that the target intake pressure is determined based on a target air amount determined from a requested torque for the internal combustion engine. The present control device operates a throttle based on the target intake pressure and an actual supercharge pressure, and operates a wastegate valve based on the target supercharge pressure.Type: GrantFiled: August 23, 2011Date of Patent: October 13, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kiyonori Takahashi, Shinichi Soejima, Satoru Tanaka, Satoshi Yoshizaki
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Patent number: 9133781Abstract: A vehicle integrated control device that can request torque having an appropriate magnitude and change speed to be given to an engine control unit from a drive system manager. A first maximum torque and a second maximum torque are presented to a drive system manager from an engine control unit. The drive system manager refers to the first maximum torque and the second maximum torque which are presented, and determines a request torque to be given to the engine control unit. The first maximum torque is a maximum torque that can be realized when only an operation amount of a throttle is actively changed without actively changing an operation amount of a wastegate valve. The second maximum torque is a maximum torque that can be realized when both the operation amount of the throttle and the operation amount of the wastegate valve are actively changed.Type: GrantFiled: June 28, 2012Date of Patent: September 15, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi Yoshizaki, Shinichi Soejima, Satoru Tanaka, Kiyonori Takahashi
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Publication number: 20150184606Abstract: It is an object of the invention to enhance the possibility of realizing a required torque in a supercharging region where scavenging occurs in a control apparatus for a supercharged engine. In order to achieve this object, the control apparatus for the supercharged engine according to the invention determines an operation amount of an intake valve driving device from a target in-cylinder air amount that is calculated from a required torque, and determines an operation amount of a throttle from a target intake valve passing air amount that is obtained by adding an amount of air blowing through an interior of a cylinder to the target in-cylinder air amount.Type: ApplicationFiled: July 25, 2012Publication date: July 2, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinichi Soejima, Akira Eiraku, Satoru Tanaka, Satoshi Yoshizaki, Kiyonori Takahashi, Yoshihiro Sakayanagi
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Publication number: 20150134214Abstract: An object of the present invention, in a vehicle integrated control device, is to cause a request torque having an appropriate magnitude and change speed to be given to an engine control unit from a drive system manager. To this end, according to a vehicle integrated control device according to the present invention, a first maximum torque and a second maximum torque are presented to a drive system manager from an engine control unit. The drive system manager refers to the first maximum torque and the second maximum torque which are presented, and determines a request torque to be given to the engine control unit. The first maximum torque is a maximum torque that can be realized when only an operation amount of a throttle is actively changed without actively changing an operation amount of a wastegate valve. The second maximum torque is a maximum torque that can be realized when both the operation amount of the throttle and the operation amount of the wastegate valve are actively changed.Type: ApplicationFiled: June 28, 2012Publication date: May 14, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi Yoshizaki, Shinichi Soejima, Satoru Tanaka, Kiyonori Takahashi