Patents by Inventor Hideya KAWAI
Hideya KAWAI 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).
-
Publication number: 20240118637Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoat layer provided on the conductive substrate, a charge generation layer provided on the undercoat layer, a charge transport layer provided on the charge generation layer, and a surface protective layer provided on the charge transport layer, in which a dark decay is 85 V/sec or greater in a case where the electrophotographic photoreceptor is contact-charged with a DC voltage.Type: ApplicationFiled: August 7, 2023Publication date: April 11, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Satoshi MIZOGUCHI, Takeshi KAWAI, Masaki HIRAKATA, Yuki YONETOKU, Hideya KATSUHARA
-
Patent number: 9061681Abstract: The present invention relates to a control device that controls a vehicle drive device in which a rotary electric machine is provided in a power transfer path that connects between an internal combustion engine and wheels and in which a first friction engagement device is provided between the internal combustion engine and the rotary electric machine and a second friction engagement device is provided between the rotary electric machine and the wheels.Type: GrantFiled: July 6, 2012Date of Patent: June 23, 2015Assignee: AISIN AW CO., LTD.Inventors: Takashi Yoshida, Yomei Hakumura, Yoichi Tajima, Hideya Kawai
-
Publication number: 20150018171Abstract: A control device for a solenoid valve that controls a solenoid valve included in a hydraulic control device using a control signal set through feedback control such that an actual current that flows through a solenoid of the solenoid valve matches a command current, including a command current setting device for setting the command current within a range of an upper-limit current. The command current setting device is operable for changing the upper-limit current from a first upper-limit value to a second upper-limit value that is smaller than the first upper-limit value in accordance with a reduction in voltage of a battery that supplies electric power to the solenoid.Type: ApplicationFiled: March 5, 2013Publication date: January 15, 2015Applicant: AISIN AW CO., LTD.Inventors: Hideya Kawai, Hirotaka Kataoka
-
Patent number: 8930051Abstract: A control device that controls a drive device for a power transfer path, the control device configured with a loss torque estimation section that estimates the value of loss torque due to drag resistance of a first engagement device, with the first engagement device in a disengaged state. A specific-slip hydraulic pressure control section sets a hydraulic pressure to be supplied to a second engagement device such that a transfer torque capacity of the second engagement device becomes a capacity corresponding to estimated input torque, which is determined as a difference between output torque of the rotary electric machine and the estimated loss torque. This is performed in the event that specific slip control, in which the second engagement device is controlled to a slip state from a state with the first engagement device in the disengaged state and with the second engagement device in a completely engaged state, is executed.Type: GrantFiled: September 6, 2011Date of Patent: January 6, 2015Assignee: Aisin AW Co., Ltd.Inventors: Hideya Kawai, Takashi Yoshida, Kohei Tsuda
-
Patent number: 8668621Abstract: A control device that controls a vehicle drive device, including a rotary electric machine and internal combustion engine that drive wheels, a first friction engagement device and a second friction engagement device. The control device is configured to execute rotational state control in which a rotational state of the rotary electric machine is controlled so as to establish a target rotational state with the second friction engagement device in a slip engagement state, and hydraulic pressure regulation control in which a hydraulic pressure supplied to the second friction engagement device is controlled on the basis of torque of the rotary electric machine produced during the rotational state control after the first friction engagement device is transitioned to a direct engagement state while the second friction engagement device is transitioned from the slip engagement state to a direct engagement state.Type: GrantFiled: July 2, 2012Date of Patent: March 11, 2014Assignee: Aisin AW Co., Ltd.Inventors: Takashi Yoshida, Yomei Hakumura, Yoichi Tajima, Hideya Kawai
-
Patent number: 8663062Abstract: A control device for controlling a vehicle drive device includes a rotary electric machine in a transmission path connecting a combustion engine with wheels; a first friction engagement device between the combustion engine and the rotary machine; and a second friction engagement device between the rotary machine and wheels. The control device shifts the first and second engagement devices from a state in which the first engagement device is disengaged and the second engagement device is in direct engagement so that force is transmitted between the rotary machine and wheels, to a state in which force is transmitted at least between the combustion engine and wheels, by shifting the second engagement device from direct engagement to a slip state and thereafter shifting the first engagement device from disengaged to engaged. After the state is changed, the control device shifts the second engagement device from slip engagement to direct engagement.Type: GrantFiled: August 2, 2012Date of Patent: March 4, 2014Assignee: Aisin AW Co., Ltd.Inventors: Hideya Kawai, Takashi Yoshida
-
Publication number: 20140045649Abstract: The present invention relates to a control device that controls a vehicle drive device in which a rotary electric machine is provided in a power transfer path that connects between an internal combustion engine and wheels and in which a first friction engagement device is provided between the internal combustion engine and the rotary electric machine and a second friction engagement device is provided between the rotary electric machine and the wheels.Type: ApplicationFiled: July 6, 2012Publication date: February 13, 2014Applicant: AISIN AW CO., LTD.Inventors: Takashi Yoshida, Yomei Hakumura, Yoichi Tajima, Hideya Kawai
-
Publication number: 20130053214Abstract: A control device for controlling a vehicle drive device includes a rotary electric machine in a transmission path connecting a combustion engine with wheels; a first friction engagement device between the combustion engine and the rotary machine; and a second friction engagement device between the rotary machine and wheels. The control device shifts the first and second engagement devices from a state in which the first engagement device is disengaged and the second engagement device is in direct engagement so that force is transmitted between the rotary machine and wheels, to a state in which force is transmitted at least between the combustion engine and wheels, by shifting the second engagement device from direct engagement to a slip state and thereafter shifting the first engagement device from disengaged to engaged. After the state is changed, the control device shifts the second engagement device from slip engagement to direct engagement.Type: ApplicationFiled: August 2, 2012Publication date: February 28, 2013Applicant: AISIN AW CO., LTD.Inventors: Hideya KAWAI, Takashi YOSHIDA
-
Publication number: 20130012353Abstract: A control device that controls a vehicle drive device, including a rotary electric machine and internal combustion engine that drive wheels, a first friction engagement device and a second friction engagement device. The control device is configured to execute rotational state control in which a rotational state of the rotary electric machine is controlled so as to establish a target rotational state with the second friction engagement device in a slip engagement state, and hydraulic pressure regulation control in which a hydraulic pressure supplied to the second friction engagement device is controlled on the basis of torque of the rotary electric machine produced during the rotational state control after the first friction engagement device is transitioned to a direct engagement state while the second friction engagement device is transitioned from the slip engagement state to a direct engagement state.Type: ApplicationFiled: July 2, 2012Publication date: January 10, 2013Applicant: AISIN AW CO., LTD.Inventors: Takashi YOSHIDA, Yomei HAKUMURA, Yoichi TAJIMA, Hideya KAWAI
-
Publication number: 20120059542Abstract: A control device that controls a drive device for a power transfer path, the control device configured with a loss torque estimation section that estimates the value of loss torque due to drag resistance of a first engagement device, with the first engagement device in a disengaged state, A specific-slip hydraulic pressure control section sets a hydraulic pressure to be supplied to a second engagement device such that a transfer torque capacity of the second engagement device becomes a capacity corresponding to estimated input torque, which is determined as a difference between output torque of the rotary electric machine and the estimated loss torque. This is performed in the event that specific slip control, in which the second engagement device is controlled to a slip state from a state with the first engagement device in the disengaged state and with the second engagement device in a completely engaged state, is executed.Type: ApplicationFiled: September 6, 2011Publication date: March 8, 2012Applicant: AISIN AW CO., LTD.Inventors: Hideya KAWAI, Takashi YOSHIDA, Kohei TSUDA