Patents by Inventor Kazuhiro Yoneshige
Kazuhiro Yoneshige 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: 11686393Abstract: In a double eccentric valve, a valve seat or valve body includes a rubber seal part in which a seat surface or seal surface is formed. An interference between the valve seat and the valve body is made minimum at a position of a rotary-shaft-directional end of the valve body in the radial direction of the valve body which is parallel to an extending direction of the axis of a rotary shaft.Type: GrantFiled: February 4, 2022Date of Patent: June 27, 2023Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Mitsuyoshi Itahara, Kazuhiro Yoneshige, Hiroshi Kawazoe, Makoto Fukui, Sadatsugu Nagata
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Patent number: 11619310Abstract: In a double eccentric valve, a valve seat or valve body includes a rubber seal part in which a seat surface or seal surface is formed. An interference between the valve seat and the valve body is made minimum at a position of a rotary-shaft-directional end of the valve body in the radial direction of the valve body which is parallel to an extending direction of the axis of a rotary shaft.Type: GrantFiled: February 4, 2022Date of Patent: April 4, 2023Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Mitsuyoshi Itahara, Kazuhiro Yoneshige, Hiroshi Kawazoe, Makoto Fukui, Sadatsugu Nagata
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Publication number: 20220170554Abstract: In a double eccentric valve, a valve seat or valve body includes a rubber seal part in which a seat surface or seal surface is formed. An interference between the valve seat and the valve body is made minimum at a position of a rotary-shaft-directional end of the valve body in the radial direction of the valve body which is parallel to an extending direction of the axis of a rotary shaft.Type: ApplicationFiled: February 4, 2022Publication date: June 2, 2022Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mitsuyoshi ITAHARA, Kazuhiro YONESHIGE, Hiroshi KAWAZOE, Makoto FUKUI, Sadatsugu NAGATA
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Publication number: 20220170553Abstract: In a double eccentric valve, a valve seat or valve body includes a rubber seal part in which a seat surface or seal surface is formed. An interference between the valve seat and the valve body is made minimum at a position of a rotary-shaft-directional end of the valve body in the radial direction of the valve body which is parallel to an extending direction of the axis of a rotary shaft.Type: ApplicationFiled: February 4, 2022Publication date: June 2, 2022Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mitsuyoshi ITAHARA, Kazuhiro YONESHIGE, Hiroshi KAWAZOE, Makoto FUKUI, Sadatsugu NAGATA
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Patent number: 11274750Abstract: In a double eccentric valve, a valve seat or valve body includes a rubber seal part in which a seat surface or seal surface is formed. An interference between the valve seat and the valve body is made minimum at a position of a rotary-shaft-directional end of the valve body in the radial direction of the valve body which is parallel to an extending direction of the axis of a rotary shaft.Type: GrantFiled: June 1, 2018Date of Patent: March 15, 2022Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Mitsuyoshi Itahara, Kazuhiro Yoneshige, Hiroshi Kawazoe, Makoto Fukui, Sadatsugu Nagata
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Publication number: 20200173562Abstract: In a double eccentric valve, a valve seat or valve body includes a rubber seal part in which a seat surface or seal surface is formed. An interference between the valve seat and the valve body is made minimum at a position of a rotary-shaft-directional end of the valve body in the radial direction of the valve body which is parallel to an extending direction of the axis of a rotary shaft.Type: ApplicationFiled: June 1, 2018Publication date: June 4, 2020Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mitsuyoshi ITAHARA, Kazuhiro YONESHIGE, Hiroshi KAWAZOE, Makoto FUKUI, Sadatsugu NAGATA
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Patent number: 10224557Abstract: A fuel cell system comprises a fuel cell for generating electricity with the supply of hydrogen gas and air, a hydrogen supply unit for supplying the hydrogen gas to the fuel cell, an air supply unit for supplying the air to the fuel cell, and a produced water atomizing apparatus for atomizing the produced water produced in association with electricity generation in the fuel cell and emitting the atomized water to the atmosphere. The air supply unit includes an air pump for pressure-feeding the air to the fuel cell, and the produced water atomizing apparatus includes an aspirator to atomize the produced water by use of the air emitted from the air pump as operation air. The air emitted from the air pump is cooled by an intercooler. The air utilized in the aspirator as the operation air is supplied to the aspirator on an upstream side of the intercooler.Type: GrantFiled: July 3, 2017Date of Patent: March 5, 2019Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru Yoshioka, Masashi Takeda, Kazuhiro Yoneshige
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Publication number: 20180034080Abstract: A fuel cell system comprises a fuel cell for generating electricity with the supply of hydrogen gas and air, a hydrogen supply unit for supplying the hydrogen gas to the fuel cell, an air supply unit for supplying the air to the fuel cell, and a produced water atomizing apparatus for atomizing the produced water produced in association with electricity generation in the fuel cell and emitting the atomized water to the atmosphere. The air supply unit includes an air pump for pressure-feeding the air to the fuel cell, and the produced water atomizing apparatus includes an aspirator to atomize the produced water by use of the air emitted from the air pump as operation air. The air emitted from the air pump is cooled by an intercooler. The air utilized in the aspirator as the operation air is supplied to the aspirator on an upstream side of the intercooler.Type: ApplicationFiled: July 3, 2017Publication date: February 1, 2018Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHIOKA, Masashi TAKEDA, Kazuhiro YONESHIGE
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Publication number: 20150176541Abstract: Recirculation piping that recirculates fuel discharged from a fuel pump to an intake side of a fuel pump in a fuel tank is provided. In addition, a canister is formed with a heat transfer surface that guides fuel flowing through the fuel tank during actuation of the fuel pump. When the recirculation piping recirculates the fuel discharged from the fuel pump into the fuel tank, the heat transfer surface transfers heat between the canister and the fuel discharged from the fuel pump among fuel in the fuel tank.Type: ApplicationFiled: July 24, 2013Publication date: June 25, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuichi Nagasaku, Shuichi Aso, Katsunori Kamiya, Kazuhiro Yoneshige
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Publication number: 20150167597Abstract: If it is determined that an internal temperature Tc of a canister that is formed with a heat transfer surface for guiding fuel that flows through a fuel tank during actuation of a fuel pump is lower than a specified temperature To (step S1), the ECU determines whether a driving voltage of the fuel pump is a high driving voltage (step S2). If it is determined that the driving voltage of the fuel pump is not the high driving voltage, an FPC is controlled, and the driving voltage of the fuel pump is increased (step S3, S5). Accordingly, a current that flows through the fuel pump is increased, so as to heat discharged fuel.Type: ApplicationFiled: July 30, 2013Publication date: June 18, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuichi Nagasaku, Shuichi Aso, Katsunori Kamiya, Kazuhiro Yoneshige
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Patent number: 8276568Abstract: A fuel supply apparatus according to the present invention includes vapor production determining means for determining whether or not the vapor of the fuel is producible, and control means (ECU) for operating a passage resistance adjusting means of a pressure adjusting mechanism to cause increase of the pressure of the fuel supplied to an injector insomuch as the production of the vapor is inhibited when the vapor production determining means has determined a vapor producible condition.Type: GrantFiled: February 7, 2007Date of Patent: October 2, 2012Assignee: Aisan Kogyo Kabushiki KaishaInventors: Kunio Takagi, Kazuhiko Nishimura, Kazuhiro Yoneshige, Satomi Wada, Hiroki Endo, Masaki Ikeya
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Patent number: 8264186Abstract: The present invention includes a control device capable of applying a high voltage to a motor of a fuel pump for an appropriate period of time during a low voltage operation of the motor.Type: GrantFiled: October 30, 2009Date of Patent: September 11, 2012Assignee: Aisan Kogyo Kabushiki KaishaInventors: Kazumichi Hanai, Kazuhiro Yoneshige
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Publication number: 20100111710Abstract: The present invention includes a control device capable of applying a high voltage to a motor of a fuel pump for an appropriate period of time during a low voltage operation of the motor.Type: ApplicationFiled: October 30, 2009Publication date: May 6, 2010Inventors: Kazumichi Hanai, Kazuhiro Yoneshige
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Publication number: 20090071444Abstract: It is an object of the present invention to inhibit production of vapor within fuel when an engine is at a high temperature and to inhibit change of amount of the fuel injected from an injector. A fuel supply apparatus according to the present invention includes vapor production determining means (3) for determining whether or not the vapor of the fuel is producible, and control means (ECU) for operating a passage resistance adjusting means (47) of a pressure adjusting mechanism (40) to cause increase of the pressure of the fuel supplied to an injector (5) insomuch as the production of the vapor is inhibited when the vapor production determining means (3) has determined a vapor producible condition.Type: ApplicationFiled: February 7, 2007Publication date: March 19, 2009Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Kunio Takagi, Kazuhiko Nishimura, Kazuhiro Yoneshige, Satomi Wada, Hiroki Endo, Masaki Ikeya
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Patent number: 7278393Abstract: A fuel injection device is provided with a fuel injection valve for injecting fuel into a combustion chamber and an air injection valve for the injection of air into the combustion chamber. One fuel injection orifice which opens into the combustion chamber is provided correspondingly to the fuel injection valve and plural air injection orifices which open into the combustion chamber are provided correspondingly to the air injection valve. A design is made so that fuel and air injected from the fuel injection orifice and the air injection orifices come into collision with each other at a collision point. The shape, size and direction of the fuel injection orifice are specified. Likewise, the number, shape, size and direction of the air injection orifice, as well as its arrangement relative to the fuel injection orifice, are specified. A design is made so that the size of a fuel spray and that of air jets at the collision point become equal to each other.Type: GrantFiled: December 30, 2003Date of Patent: October 9, 2007Assignee: Aisan Kogyo Kabushiki KaishaInventors: Masaya Hayakawa, Kazuhiro Yoneshige
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Patent number: 6920861Abstract: A fuel injection device includes a fuel injection valve for injecting fuel through a fuel injection orifice opening into a combustion chamber, an air injection valve for injecting air through an air injection orifice opening into the combustion chamber, sensors for detecting an operating condition of an engine, and an electronic control unit (ECU) for controlling the fuel injection valve and the air injection valve. Orientations of the air injection orifice and the fuel injection orifice are determined to make an air jet collide with a fuel spray. The ECU controls the fuel injection valve based on the operating condition detected by the sensors to control spray velocity, spray particle diameter, spray angle, etc. of the fuel to be injected through the fuel injection orifice, and at least one of an air injection timing and an air injection period of air injection to be performed by the air injection valve.Type: GrantFiled: May 17, 2004Date of Patent: July 26, 2005Assignee: Aisan Kogyo Kabushiki KaishaInventors: Masaya Hayakawa, Kazuhiro Yoneshige
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Publication number: 20040261761Abstract: A fuel injection device is provided with a fuel injection valve for injecting fuel through a fuel injection orifice opening into a combustion chamber, an air injection valve for injecting air through an air injection orifice opening into the combustion chamber, various sensors for detecting an operating condition of an engine, and an electronic control unit (ECU) for controlling the fuel injection valve and the air injection valve individually. The orientations of the air injection orifice and the fuel injection orifice are determined to make an air jet collide with a fuel spray. The ECU controls the fuel injection valve based on the operating condition detected by the sensors to control spray velocity, spray particle diameter, spray angle, etc. of the fuel to be injected through the fuel injection orifice. The ECU also controls at least one of an air injection timing and an air injection period of air injection to be performed by the air injection valve.Type: ApplicationFiled: May 17, 2004Publication date: December 30, 2004Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Masaya Hayakawa, Kazuhiro Yoneshige
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Publication number: 20040154584Abstract: A fuel injection device is provided with a fuel injection valve for injecting fuel into a combustion chamber and an air injection valve for the injection of air into the combustion chamber. One fuel injection orifice which opens into the combustion chamber is provided correspondingly to the fuel injection valve and plural air injection orifices which open into the combustion chamber are provided correspondingly to the air injection valve. A design is made so that fuel and air injected from the fuel injection orifice and the air injection orifices come into collision with each other at a collision point. The shape, size and direction of the fuel injection orifice are specified. Likewise, the number, shape, size and direction of the air injection orifice, as well as its arrangement relative to the fuel injection orifice, are specified. A design is made so that the size of a fuel spray and that of air jets at the collision point become equal to each other.Type: ApplicationFiled: December 30, 2003Publication date: August 12, 2004Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Masaya Hayakawa, Kazuhiro Yoneshige
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Patent number: 6712048Abstract: Driving circuitry for an electromagnetic fuel injection valve in which the holding current value is made variable to obtain a minimum necessary holding force from the holding current according to the fuel pressure includes a solenoid for driving the fuel injection valve, a capacitor charged by a high-voltage charge control part, a switch circuit for on-off controlling a high-voltage current supplied from the capacitor to the solenoid in response to an injection command signal, and a holding current supply circuit for supplying a holding current from the power supply to the solenoid. When the holding current is supplied, a comparator circuit compares a voltage obtained by converting the value of electric current flowing through the solenoid by a resistor for detection and a voltage corresponding to a fuel pressure sensor signal, and the value of the holding current is varied according to an output signal from the comparator circuit.Type: GrantFiled: May 21, 2002Date of Patent: March 30, 2004Assignee: Aisan Kogyo Kabushiki KaishaInventors: Tsuneaki Aoki, Atsushi Okada, Kazuhiro Yoneshige
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Publication number: 20020179059Abstract: Driving circuitry for an electromagnetic fuel injection valve in which the holding current value is made variable to obtain a minimum necessary holding force from the holding current according to the fuel pressure is disclosed. The driving circuitry has a solenoid for driving the electromagnetic fuel injection valve, a capacitor charged by a high-voltage charge control part connected to a power supply, a switch circuit for on-off controlling a high-voltage current supplied from the capacitor to the solenoid in response to an injection command signal, and a holding current supply circuit for supplying a holding current from the power supply to the solenoid. When the holding current is supplied, a comparator circuit compares a voltage obtained by converting the value of electric current flowing through the solenoid by a resistor for detection and a voltage corresponding to a fuel pressure sensor signal, and the value of the holding current is varied according to an output signal from the comparator circuit.Type: ApplicationFiled: May 21, 2002Publication date: December 5, 2002Inventors: Tsuneaki Aoki, Atsushi Okada, Kazuhiro Yoneshige