Patents by Inventor Soichiro Goto
Soichiro Goto 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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Publication number: 20240150649Abstract: A light-emitting element includes an anode electrode, a QD layer containing QDs, and a cathode electrode, in which the QDs are Cd-free quantum dots having a core-shell structure including a core containing at least Ag, Ga, and at least one of S and Se, and a shell containing at least Zn, and exhibit fluorescence characteristics with a fluorescence full-width at half-maximum of 40 nm or less and a fluorescence quantum yield percentage of 70% or more.Type: ApplicationFiled: March 31, 2021Publication date: May 9, 2024Inventors: Kazuki GOTO, Yusuke SAKAKIBARA, Masaki YAMAMOTO, Tatsuya RYOHWA, Akio MISHIMA, Soichiro NIKATA, Vit KALOUSEK, Yuko OGURA, Yoko MICHIWAKI
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Publication number: 20240107792Abstract: A light-emitting element includes an anode electrode, a cathode electrode, and a QD layer provided between the anode electrode and the cathode electrode, the QD layer containing the QDs. The QDs are AgInxGa1-xSySe1-y-based or ZnAgInxGa1-xSySe1-y-based Cd-free QDs (0?x<1, 0?y?1) and exhibit fluorescence characteristics having a fluorescent half width of 45 nm or less and a fluorescence quantum yield of 35% or more in a green wavelength region to a red wavelength region.Type: ApplicationFiled: February 18, 2021Publication date: March 28, 2024Inventors: Kazuki GOTO, YUSUKE SAKAKIBARA, Yuma YAGUCHI, Keisuke KITANO, Masaki YAMAMOTO, Soichiro NIKATA, Yoko MICHIWAKI, Yuko OGURA, Vit KALOUSEK, Akio MISHIMA
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Patent number: 9249712Abstract: An air-fuel ratio control system for an internal combustion engine, which, at the resumption of air-fuel ratio feedback control, is capable of setting the initial value of an integral term of the feedback control to a value properly learned in preceding feedback control, thereby enabling improvement of control accuracy. To feedback-control the output value of an O2 sensor to a target value, a target air-fuel ratio is calculated. During the feedback control, when it is determined that a predetermined condition in which it is estimated that exhaust gas air-fuel ratio upstream of the catalyst is excellently reflected on an exhaust gas air-fuel ratio at a location midway or downstream of the catalyst is satisfied, an adaptive law input calculated immediately before interruption of the feedback control is updated and stored as the initial value of an integral term for the following execution of the feedback control.Type: GrantFiled: June 10, 2011Date of Patent: February 2, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Michinori Tani, Kenichi Maeda, Atsuhiro Miyauchi, Seiji Watanabe, Soichiro Goto
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Patent number: 8983754Abstract: An apparatus for controlling an air-fuel ratio of an internal-combustion engine includes an air-fuel ratio detector, a fluctuation signal generating device, an air-fuel ratio fluctuation device, a 0.5th-order frequency component strength calculator, a fluctuation frequency component strength calculator, a reference component strength calculator, and an imbalance fault determining device. The reference component strength calculator is configured to calculate strength of a reference component in accordance with strength of a first frequency component and strength of a second frequency component. The imbalance fault determining device is configured to make a determination of an imbalance fault in which air-fuel ratios of a plurality of cylinders vary beyond a tolerance limit on a basis of a relative relationship between strength of the 0.5th-order frequency component and the strength of the reference component.Type: GrantFiled: May 17, 2012Date of Patent: March 17, 2015Assignee: Honda Motor Co., Ltd.Inventors: Seiji Watanabe, Tooru Sekiguchi, Hiroyuki Ando, Atsuhiro Miyauchi, Takeshi Aoki, Michinori Tani, Soichiro Goto
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Patent number: 8818690Abstract: An air-fuel ratio control apparatus for an internal combustion engine includes an air-fuel ratio sensor having an output characteristic which is nonlinear with respect to the air-fuel ratio of exhaust gas. An output deviation converter is configured to convert an output deviation to a first predetermined value if an output value of the air-fuel ratio sensor is on a richer side of a predetermined target value and to a second predetermined value if the output value is on a leaner side of the target value. A control input calculator is configured to calculate a control input to feedback-control the output value of the air-fuel ratio sensor such that the output deviation converted by the output deviation converter is to be zero. An air-fuel ratio controller is configured to control the air-fuel ratio of exhaust gas using the control input calculated by the control input calculator.Type: GrantFiled: June 30, 2011Date of Patent: August 26, 2014Assignee: Honda Motor Co., Ltd.Inventors: Michinori Tani, Kenichi Maeda, Atsuhiro Miyauchi, Seiji Watanabe, Soichiro Goto
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Patent number: 8694227Abstract: An air-fuel ratio control apparatus for an internal-combustion engine includes an air-fuel-ratio sensor, a control-input calculator, an air-fuel-ratio controller, and a gain calculator. The air-fuel-ratio sensor is disposed in an exhaust channel in the internal-combustion engine and is configured to detect an air-fuel ratio in exhaust gas. The control-input calculator is configured to calculate a control input in accordance with an output value of the air-fuel-ratio sensor. The air-fuel-ratio controller is configured to perform a feedback control using the control input such that the output value of the air-fuel-ratio sensor reaches a target value. The gain calculator is configured to calculate a gain in accordance with the output value when the output value is leaner than the target value. The gain is to be used in calculating the control input.Type: GrantFiled: May 16, 2011Date of Patent: April 8, 2014Assignee: Honda Motor Co., Ltd.Inventors: Michinori Tani, Atsuhiro Miyauchi, Kenichi Maeda, Seiji Watanabe, Soichiro Goto
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Publication number: 20130054112Abstract: An apparatus for controlling an air-fuel ratio of an internal-combustion engine includes an air-fuel ratio detector, a fluctuation signal generating device, an air-fuel ratio fluctuation device, a 0.5th-order frequency component strength calculator, a fluctuation frequency component strength calculator, a reference component strength calculator, and an imbalance fault determining device. The reference component strength calculator is configured to calculate strength of a reference component in accordance with strength of a first frequency component and strength of a second frequency component. The imbalance fault determining device is configured to make a determination of an imbalance fault in which air-fuel ratios of a plurality of cylinders vary beyond a tolerance limit on a basis of a relative relationship between strength of the 0.5th-order frequency component and the strength of the reference component.Type: ApplicationFiled: May 17, 2012Publication date: February 28, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Seiji WATANABE, Tooru SEKIGUCHI, Hiroyuki ANDO, Atsuhiro MIYAUCHI, Takeshi AOKI, Michinori TANI, Soichiro GOTO
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Publication number: 20120004827Abstract: An air-fuel ratio control apparatus for an internal combustion engine includes an air-fuel ratio sensor having an output characteristic which is nonlinear with respect to the air-fuel ratio of exhaust gas. An output deviation converter is configured to convert an output deviation to a first predetermined value if an output value of the air-fuel ratio sensor is on a richer side of a predetermined target value and to a second predetermined value if the output value is on a leaner side of the target value. A control input calculator is configured to calculate a control input to feedback-control the output value of the air-fuel ratio sensor such that the output deviation converted by the output deviation converter is to be zero. An air-fuel ratio controller is configured to control the air-fuel ratio of exhaust gas using the control input calculated by the control input calculator.Type: ApplicationFiled: June 30, 2011Publication date: January 5, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Michinori TANI, Kenichi Maeda, Atsuhiro Miyauchi, Seiji Watanabe, Soichiro Goto
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Publication number: 20110314795Abstract: An air-fuel ratio control system for an internal combustion engine, which, at the resumption of air-fuel ratio feedback control, is capable of setting the initial value of an integral term of the feedback control to a value properly learned in preceding feedback control, thereby enabling improvement of control accuracy. To feedback-control the output value of an O2 sensor to a target value, a target air-fuel ratio is calculated. During the feedback control, when it is determined that a predetermined condition in which it is estimated that exhaust gas air-fuel ratio upstream of the catalyst is excellently reflected on an exhaust gas air-fuel ratio at a location midway or downstream of the catalyst is satisfied, an adaptive law input calculated immediately before interruption of the feedback control is updated and stored as the initial value of an integral term for the following execution of the feedback control.Type: ApplicationFiled: June 10, 2011Publication date: December 29, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Michinori TANI, Kenichi Maeda, Atsuhiro Miyauchi, Seiji Watanabe, Soichiro Goto
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Publication number: 20110320106Abstract: An air-fuel ratio control apparatus for an internal-combustion engine includes an air-fuel-ratio sensor, a control-input calculator, an air-fuel-ratio controller, and a gain calculator. The air-fuel-ratio sensor is disposed in an exhaust channel in the internal-combustion engine and is configured to detect an air-fuel ratio in exhaust gas. The control-input calculator is configured to calculate a control input in accordance with an output value of the air-fuel-ratio sensor. The air-fuel-ratio controller is configured to perform a feedback control using the control input such that the output value of the air-fuel-ratio sensor reaches a target value. The gain calculator is configured to calculate a gain in accordance with the output value when the output value is leaner than the target value. The gain is to be used in calculating the control input.Type: ApplicationFiled: May 16, 2011Publication date: December 29, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Michinori TANI, Atsuhiro Miyauchi, Kenichi Maeda, Seiji Watanabe, Soichiro Goto