Patents by Inventor Kenichi Naka
Kenichi Naka 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: 10648560Abstract: A lock shaft and a shaft member (a plunger and a permanent magnet) of a magnetic locking device are arranged such that a moving direction thereof is orthogonal to a moving direction of a piston rod of a hydraulic actuator. In a parking lock released state, when the coil is not energized, the lock shaft and the shaft member are locked by an attracting force between the permanent magnet and a flange of a yoke so as not to move back from the piston rod, and, when the coil is energized, the attracting force between the permanent magnet and the flange is canceled, so that the lock shaft and the shaft member are allowed to move back from the piston rod.Type: GrantFiled: October 23, 2014Date of Patent: May 12, 2020Assignee: AISIN AW CO., LTD.Inventors: Takahiro Kokubu, Masaya Nakai, Tomonari Okamoto, Eikichi Kidokoro, Kenichi Naka, Tadamasa Takei, Junichi Terai
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Patent number: 10458547Abstract: A detent lever 20 and a piston rod 42 are engaged with each other through engagement between a recessed portion 26 of the detent lever 20 and a pin portion 52 of a retainer member 50 attached to the piston rod 42. With this configuration, the detent lever 20 and the piston rod 42 can be engaged with each other easily and in a short time when assembling a parking device 10. As a result, the time required for the work of assembling the parking device 10 can be shortened.Type: GrantFiled: June 17, 2016Date of Patent: October 29, 2019Assignee: AISIN AW CO., LTD.Inventors: Masaya Nakai, Takahiro Kokubu, Tomonari Okamoto, Kazunori Ishikawa, Susumu Kato, Kenichi Naka
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Patent number: 10071714Abstract: A hydraulic unit and an electromagnetic unit are disposed such that a piston rod of the hydraulic unit and a solenoid shaft of the electromagnetic unit are orthogonal to each other. The electromagnetic unit is configured such that an end surface of an expanded diameter portion of a shaft portion of the solenoid shaft on the piston rod side is pressed against an attracting portion of a yoke by the elastic force of a spring when a parking unlocked state is established by a hydraulic pressure.Type: GrantFiled: June 17, 2014Date of Patent: September 11, 2018Assignee: AISIN AW CO., LTD.Inventors: Akihito Iwata, Tadamasa Takei, Kenichi Naka
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Publication number: 20180172154Abstract: A detent lever 20 and a piston rod 42 are engaged with each other through engagement between a recessed portion 26 of the detent lever 20 and a pin portion 52 of a retainer member 50 attached to the piston rod 42. With this configuration, the detent lever 20 and the piston rod 42 can be engaged with each other easily and in a short time when assembling a parking device 10. As a result, the time required for the work of assembling the parking device 10 can be shortened.Type: ApplicationFiled: June 17, 2016Publication date: June 21, 2018Applicant: AISIN AW CO., LTD.Inventors: Masaya NAKAI, Takahiro KOKUBU, Tomonari OKAMOTO, Kazunori ISHIKAWA, Susumu KATO, Kenichi NAKA
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Patent number: 9771989Abstract: A hydraulic unit and an electromagnetic unit are disposed in directions that are orthogonal to each other. The electromagnetic unit is configured such that a solenoid shaft is held when a coil is energized, and such that movement of the solenoid shaft toward the right side in the drawing is allowed during movement of the piston rod when the coil is not energized. When a hydraulic pressure for a piston is reduced with the coil not energized in a parking unlocked state, switching is performed to a parking locked state with a piston rod moved downward in the drawing while moving the solenoid shaft rightward in the drawing through abutment between a roller of a pin of the piston rod and a distal end portion of the solenoid shaft.Type: GrantFiled: June 17, 2014Date of Patent: September 26, 2017Assignee: AISIN AW CO., LTD.Inventors: Akihito Iwata, Tadamasa Takei, Kenichi Naka
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Patent number: 9702421Abstract: A hydraulic unit and an electromagnetic unit are disposed in directions that are orthogonal to each other. In addition, in a parking locked state, a roller of a pin of a piston rod and a lower abutment surface of a distal end portion of a solenoid shaft are in abutment with each other. Further, when a coil is not energized, the solenoid shaft is allowed to be moved rightward in the drawing through abutment between the pin of the piston rod and the distal end portion of the solenoid shaft during movement of the piston rod.Type: GrantFiled: June 17, 2014Date of Patent: July 11, 2017Assignee: AISIN AW CO., LTD.Inventors: Akihito Iwata, Tadamasa Takei, Kenichi Naka
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Patent number: 9555777Abstract: A parking device for a vehicle has a parking rod which is movably driven from a position in which a parking gear is engaged to a position in which the engagement of the parking gear is released, a rotational lever which movably drives the parking rod, a drive device which rotationally drives the rotational lever, an elastic member which urges the rotational lever in a direction opposite from a direction in which the rotational lever is rotationally driven, and engagement device having an engaging portion in which the engaging portion is engaged with an engaged portion, in a position where the parking gear is engaged, which is provided at an end surface of the rotational lever which follows the radial direction of rotation.Type: GrantFiled: March 26, 2014Date of Patent: January 31, 2017Assignee: AISIN AW CO., LTD.Inventors: Tadamasa Takei, Kenichi Naka, Akihito Iwata
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Publication number: 20160208916Abstract: A lock shaft and a shaft member (a plunger and a permanent magnet) of a magnetic locking device are arranged such that a moving direction thereof is orthogonal to a moving direction of a piston rod of a hydraulic actuator. In a parking lock released state, when the coil is not energized, the lock shaft and the shaft member are locked by an attracting force between the permanent magnet and a flange of a yoke so as not to move back from the piston rod, and, when the coil is energized, the attracting force between the permanent magnet and the flange is canceled, so that the lock shaft and the shaft member are allowed to move back from the piston rod.Type: ApplicationFiled: October 23, 2014Publication date: July 21, 2016Applicant: AISIN AW CO., LTD.Inventors: Takahiro KOKUBU, Masaya NAKAI, Tomonari OKAMOTO, Eikichi KIDOKORO, Kenichi NAKA, Tadamasa TAKEI, Junichi TERAI
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Publication number: 20160123412Abstract: A hydraulic unit and an electromagnetic unit are disposed in directions that are orthogonal to each other. In addition, in a parking locked state, a roller of a pin of a piston rod and a lower abutment surface of a distal end portion of a solenoid shaft are in abutment with each other. Further, when a coil is not energized, the solenoid shaft is allowed to be moved rightward in the drawing through abutment between the pin of the piston rod and the distal end portion of the solenoid shaft during movement of the piston rod.Type: ApplicationFiled: June 17, 2014Publication date: May 5, 2016Applicant: AISIN AW CO., LTD.Inventors: Akihito IWATA, Tadamasa TAKEI, Kenichi NAKA
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Publication number: 20160091037Abstract: A hydraulic unit and an electromagnetic unit are disposed in directions that are orthogonal to each other. The electromagnetic unit is configured such that a solenoid shaft is held when a coil is energized, and such that movement of the solenoid shaft toward the right side in the drawing is allowed during movement of the piston rod when the coil is not energized. When a hydraulic pressure for a piston is reduced with the coil not energized in a parking unlocked state, switching is performed to a parking locked state with a piston rod moved downward in the drawing while moving the solenoid shaft rightward in the drawing through abutment between a roller of a pin of the piston rod and a distal end portion of the solenoid shaft.Type: ApplicationFiled: June 17, 2014Publication date: March 31, 2016Applicant: AISIN AW CO., LTD.Inventors: Akihito IWATA, Tadamasa TAKEI, Kenichi NAKA
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Publication number: 20160082933Abstract: A hydraulic unit and an electromagnetic unit are disposed such that a piston rod of the hydraulic unit and a solenoid shaft of the electromagnetic unit are orthogonal to each other. The electromagnetic unit is configured such that an end surface of an expanded diameter portion of a shaft portion of the solenoid shaft on the piston rod side is pressed against an attracting portion of a yoke by the elastic force of a spring when a parking unlocked state is established by a hydraulic pressure.Type: ApplicationFiled: June 17, 2014Publication date: March 24, 2016Applicant: AISIN AW CO., LTD.Inventors: Akihito IWATA, Tadamasa TAKEI, Kenichi NAKA
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Publication number: 20160001751Abstract: A parking device for a vehicle has a parking rod which is movably driven from a position in which a parking gear is engaged to a position in which the engagement of the parking gear is released, a rotational lever which movably drives the parking rod, a drive device which rotationally drives the rotational lever, an elastic member which urges the rotational lever in a direction opposite from a direction in which the rotational lever is rotationally driven, and engagement device having an engaging portion in which the engaging portion is engaged with an engaged portion, in a position where the parking gear is engaged, which is provided at an end surface of the rotational lever which follows the radial direction of rotation.Type: ApplicationFiled: March 26, 2014Publication date: January 7, 2016Applicant: AISIN AW CO., LTD.Inventors: Tadamasa TAKEI, Kenichi NAKA, Akihito IWATA
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Publication number: 20090275786Abstract: A method for producing a glyceryl ether, including the steps of feeding a compound represented by the general formula (I): wherein R is a hydrocarbon group having 1 to 20 carbon atoms, a part or all of the hydrogen atoms of which may be substituted with a fluorine atom; OA, which may be identical or different, is an oxyalkylene group having 2 to 4 carbon atoms; and p is the number of from 0 to 20, and water to a reactor, and subjecting the compound to a hydrolytic reaction under conditions that water is in a subcritical state or a supercritical state; and wherein the method includes the step of (1) collecting water from a reaction mixture after the hydrolytic reaction, adjusting a pH of the water to 3.5 or more, and feeding the collected water to the reactor; or (2) subjecting water collected from a reaction mixture after the hydrolytic reaction to a filtration treatment with a reverse osmosis membrane, and feeding the resulting treated water as a recycled water to the reactor.Type: ApplicationFiled: March 31, 2006Publication date: November 5, 2009Applicant: Kao CorporationInventors: Takeshi Shirasawa, Kenichi Naka, Akira Saito
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Publication number: 20090131725Abstract: In a method for producing a hydrolysate in which an organic compound and water are mixed and a hydrolysis reaction of the organic compound is performed, shear flow of the organic compound and the water at a shear rate U/Dmin of 5.5 sec?1 or more (where Dmin is a flow channel minimum inner diameter (mm) in a mixing section and U is a flow rate (mm/sec) of a mixture of the organic compound and the water in the mixing section), thereby mixing the organic compound and the water, and the hydrolysis reaction of the organic compound is performed at a reaction temperature of 150° C. to 350° C. and a reaction pressure equal to or higher than a saturation vapor pressure of the water.Type: ApplicationFiled: August 21, 2006Publication date: May 21, 2009Applicant: KAO CORPORATIONInventor: Kenichi Naka
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Patent number: 4827251Abstract: A display control system with a control of background luminance or color data applicable for a personal computer with a paper-white type display device includes a character video signal generation unit, a background luminance setting register, a video enable signal generation unit, a video signal priority unit, and a video signal synthesis unit. A first video enable signal from the video enable signal generation unit controls the supply of the video signals to the video signal priority unit. A second video enable signal from the video enable signal generation unit controls a display of background in a background luminance tone or color designated by the background luminance setting register for an intermediate range when the character video signal is absent.Type: GrantFiled: January 29, 1987Date of Patent: May 2, 1989Assignee: Panafacom LimitedInventors: Hiroshi Aoki, Kenichi Naka