Patents by Inventor Tomoaki Kawabata
Tomoaki Kawabata 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: 8656982Abstract: The present invention arranges the part for removing impurities from a molten metal containing a filter holder constituted of a structure containing an organic fiber, an inorganic fiber and thermosetting resin and a heat-resistant filter in the runner of the mold.Type: GrantFiled: December 7, 2011Date of Patent: February 25, 2014Assignee: Kao CorporationInventors: Shigeaki Takashina, Tokuo Tsuura, Tomoaki Kawabata, Daisuke Barada
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Patent number: 8651967Abstract: A torque transmission device connects two rotary shafts having shaft ends opposing each other, such that torque is transmitted through a torque transmission mechanism provided to a shaft end surface of each of the two rotary shafts. A first rotary shaft of the two rotary shafts has a double-supported structure where both end portions of the first rotary shaft are supported by bearings, respectively. A second rotary shaft of the two rotary shafts has a cantilever structure where only one end portion of the second rotary shaft opposite to the torque transmission mechanism is supported by a bearing, and the second rotary shaft is spaced from one bearing of the bearings supporting the first rotary shaft, the one bearing being provided at a side of the torque transmission mechanism.Type: GrantFiled: October 12, 2012Date of Patent: February 18, 2014Assignees: Advics Co., Ltd., Denso CorporationInventors: Kunihito Ando, Daishi Kato, Yuki Nakamura, Takahiro Naganuma, Tomoaki Kawabata
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Publication number: 20130064704Abstract: A seal member is configured so that an annular rubber member is disposed in an annular storage chamber of a resin annular member. Thus, the rubber annular member is not directly in contact with a drive shaft, and the rubber annular member can be prevented from wearing or peeling without requiring a rotation stopping structure for the seal member. Furthermore, the seal member is provided with first and second communication mouths, so that a brake fluid pressure is applied to compartments obtained by dividing the annular storage chamber using the rubber annular member. Thus, the rubber annular member is pressed, and then is elastically deformed, and accordingly, the resin annular member is expanded by the elastic force. Thus, a self-sealing operation can be performed on the basis of a high pressing force.Type: ApplicationFiled: May 20, 2011Publication date: March 14, 2013Applicant: ADVICS CO., LTD.Inventors: Yuki Nakamura, Tomoaki Kawabata
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Publication number: 20120138255Abstract: The present invention arranges the part for removing impurities from a molten metal containing a filter holder constituted of a structure containing an organic fiber, an inorganic fiber and thermosetting resin and a heat-resistant filter in the runner of the mold.Type: ApplicationFiled: December 7, 2011Publication date: June 7, 2012Inventors: Shigeaki TAKASHINA, Tokuo TSUURA, Tomoaki KAWABATA, Daisuke BARADA
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Publication number: 20120068559Abstract: A apparatus is provided in which, in a state before being assembled to a drive target, one end of a rotating shaft is not supported by a bearing, and in this state, the rotating shaft is pressed to the side of a bracket by coil springs and thus centering of the rotating shaft is maintained. In this way, axial run-out of the rotating shaft before a magnetic motor is assembled to the drive target is inhibited. Thus, damage and deterioration in assembly efficiency as a result of axial run-out of the rotating shaft can be inhibited, such as deterioration in assembly efficiency caused by adhesion between a magnet and coils wound on an armature core, for example.Type: ApplicationFiled: September 16, 2011Publication date: March 22, 2012Applicants: DENSO CORPORATION, ADVICS CO., LTD.Inventors: Yuki NAKAMURA, Kunihito Ando, Nobuhiko Yoshioka, Takahiro Naganuma, Tomoaki Kawabata
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Publication number: 20120070222Abstract: A shaft coupling apparatus is provided in which a cylindrically-shaped hole is provided on a leading end surface of a shaft, the hole having a central axis that is different from a rotational central axis of the shaft, and a cylindrically-shaped hole is provided on a leading end surface of a shaft, the hole having a central axis that is different from a rotational central axis of the shaft. The shafts are coupled by pressure fitting a cross-sectionally circular pin in the hole and by loosely fitting the pin in the hole, the pin corresponding to an inner diameter of the hole and the hole.Type: ApplicationFiled: September 16, 2011Publication date: March 22, 2012Applicants: DENSO CORPORATION, ADVICS CO., LTD.Inventors: Yuki NAKAMURA, Kunihito Ando, Nobuhiko Yoshioka, Takahiro Naganuma, Tomoaki Kawabata
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Publication number: 20120051959Abstract: An O-ring has a shape including a first portion that is arranged side by side with a suction port in an axial direction, a second portion that is arranged side by side with a suction port, and a third portion that connects these portions. The first portion and the second portion are arranged to be displaced from each other in the axial direction. The third portion is arranged to extend in a direction different from a circumferential direction between the suction port and the suction port when a pump body is viewed in a radial direction. Thus, the suction ports can be located closer to each other in the axial direction. Therefore, the axial direction length of the pump body can be reduced, and size reduction of a rotary pump device can be achieved.Type: ApplicationFiled: August 29, 2011Publication date: March 1, 2012Applicants: DENSO CORPORATION, ADVICS CO., LTD.Inventors: Yuki Nakamura, Kunihito Ando, Nobuhiko Yoshioka, Takahiro Naganuma, Tomoaki Kawabata
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Publication number: 20120051960Abstract: A rotary pump device is provided in which a drive shaft is inserted into a center hole of a cylinder that forms rotor chambers, and into outer rotors and inner rotors of rotary pumps. In the rotary pump device, seal mechanisms that include hollow-shaped resin members and annular rubber members are arranged on an opposite side to the cylinder with respect to the rotary pumps. Metal rings are arranged in hollow portions of the resin members in the seal mechanisms so that the drive shaft is inserted into an inner periphery of the metal rings with a minimum clearance.Type: ApplicationFiled: August 29, 2011Publication date: March 1, 2012Applicants: DENSO CORPORATION, ADVICS CO., LTD.Inventors: Yuki NAKAMURA, Kunihito ANDO, Nobuhiko YOSHIOKA, Takahiro NAGANUMA, Tomoaki KAWABATA
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Patent number: 8096021Abstract: A hinge apparatus of the present invention comprises a first rotational shaft which rotates a first casing and a second casing relative to each other from a state where the first and second casings are folded down, and opens the first and second casings in a vertical direction, a second rotational shaft which rotates the first casing and the second casing relative to each other in a horizontal direction, a coupling member which couples the first rotational shaft and the second rotational shaft together, with an end portion of the first rotational shaft being overlapped with an end portion of the second rotational shaft, and an engagement member which allows either one rotational shaft of the first rotational shaft and the second rotational shaft to engage with the other rotational shaft, thereby restricting a rotation of the other rotational shaft when the one rotational shaft rotates.Type: GrantFiled: December 2, 2008Date of Patent: January 17, 2012Assignee: Casio Hitachi Mobile Communications Co., Ltd.Inventors: Noriyuki Iwama, Yuuichi Oota, Satoshi Tanaka, Tomoaki Kawabata, Masatake Fuke, Nobuyoshi Ooba
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Publication number: 20110116939Abstract: A first and a second rotary pumps are provided in a first pump casing of a pump body, which is inserted into a cylindrical recessed portion of a housing 101. A first outlet port is opened at a first space formed between a bottom surface of the cylindrical recessed portion and an axial forward end surface of the first pump casing, so that discharge pressure of working fluid of the first pump is supplied to the first space. A second outlet port is opened at a second space formed between an axial backward end surface of the first pump casing and an axial forward end surface of a second pump casing, so that discharge pressure of working fluid of the second pump is supplied to the second space.Type: ApplicationFiled: November 17, 2010Publication date: May 19, 2011Applicant: ADVICS CO., LTD.Inventors: Tomoaki KAWABATA, Kunihito Ando
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Publication number: 20110116949Abstract: An object of the invention is to provide a structure for coupling two rotary shafts, which can be made smaller in size. A driving shaft for pumps is rotatably supported by a first bearing and a second bearing, while a rotary shaft of an electric motor is rotatably supported by the second bearing and a third bearing. Each one end of the driving shaft and the rotary shaft is inserted into the common second bearing, so that rotation of the rotary shaft is transmitted to the driving shaft.Type: ApplicationFiled: November 17, 2010Publication date: May 19, 2011Applicant: ADVICS CO., LTD.Inventor: Tomoaki KAWABATA
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Publication number: 20100096099Abstract: The present invention arranges the part for removing impurities from a molten metal containing a filter holder constituted of a structure containing an organic fiber, an inorganic fiber and thermosetting resin and a heat-resistant filter in the runner of the mold.Type: ApplicationFiled: December 12, 2007Publication date: April 22, 2010Applicant: Kao CorporationInventors: Shigeaki Takashina, Tokuo Tsuura, Tomoaki Kawabata, Daisuke Barada
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Publication number: 20090139058Abstract: A hinge apparatus of the present invention comprises a first rotational shaft which rotates a first casing and a second casing relative to each other from a state where the first and second casings are folded down, and opens the first and second casings in a vertical direction, a second rotational shaft which rotates the first casing and the second casing relative to each other in a horizontal direction, a coupling member which couples the first rotational shaft and the second rotational shaft together, with an end portion of the first rotational shaft being overlapped with an end portion of the second rotational shaft, and an engagement member which allows either one rotational shaft of the first rotational shaft and the second rotational shaft to engage with the other rotational shaft, thereby restricting a rotation of the other rotational shaft when the one rotational shaft rotates.Type: ApplicationFiled: December 2, 2008Publication date: June 4, 2009Applicant: Casio Hitachi Mobile Communications Co., Ltd.Inventors: Noriyuki Iwama, Yuuichi Oota, Satoshi Tanaka, Tomoaki Kawabata, Masatake Fuke, Nobuyoshi Ooba
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Patent number: 7513482Abstract: A solenoid valve for use in an actuator for controlling brake hydraulic pressure includes a valve housing, a movable core having an integral valve rod and axially slidably received in the valve housing, and a valve body configured to be moved into and out of contact with a valve seat when the valve body moves. The solenoid valve further includes a yoke having a U-shaped section. The flanges of the yoke have first ends that extend substantially along the outer peripheral edges of the coil winding to minimize the length of the flanges and thus the length of the solenoid valve.Type: GrantFiled: October 31, 2006Date of Patent: April 7, 2009Assignee: Advics Co., Ltd.Inventors: Takayuki Shibata, Koji Yanai, Toru Fujita, Tomoaki Kawabata
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Publication number: 20070108401Abstract: A solenoid valve for use in an actuator for controlling brake hydraulic pressure includes a valve housing, a movable core having an integral valve rod and axially slidably received in the valve housing, and a valve body configured to be moved into and out of contact with a valve seat when the valve body moves. The solenoid valve further includes a yoke having a U-shaped section. Even with such a U-shaped yoke, it is possible to form a magnetic path. Compared to tubular yokes, it is possible to reduce its width and thus the width of the solenoid valve by an amount equal to the thickness of tubular yokes. Thus, by arranging such solenoid valves in an actuator for controlling brake hydraulic pressure such that the width directions of the respective solenoid valves coincide with the height direction of the actuator, in which it is required to reduce the size of the actuator, it is possible to reduce its size in this direction.Type: ApplicationFiled: October 31, 2006Publication date: May 17, 2007Inventors: Takayuki Shibata, Koji Yanai, Toru Fujita, Tomoaki Kawabata