Patents by Inventor Masaaki Ohashi
Masaaki Ohashi 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: 11959587Abstract: A bracket (1) includes a bracket body (2) made of a synthetic resin and a reinforcement member (3) made of a fiber reinforced plastic. The bracket body (2) has a surrounding portion (20). The reinforcement member (3) extends in a surrounding direction. A reinforcement member arrangement portion (20a) of the surrounding portion (20) is formed of an outer circumference (211), an inner circumference (212), and a connecting portion (213). The reinforcement member arrangement portion (20a) is in the shape of a letter I in cross section in which the cross sectional width (W3) of the connecting portion (213) is narrower than the cross sectional width (W1) of the outer circumference (211) and the cross sectional width (W2) of the inner circumference (212). The reinforcement member (3) is arranged on the outer circumference (211).Type: GrantFiled: March 19, 2021Date of Patent: April 16, 2024Assignee: Prospira CorporationInventors: Mizuki Kataura, Tadashi Onishi, Masaaki Ohashi
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Publication number: 20230341084Abstract: A bracket (1) includes a bracket body (2) made of a synthetic resin and a reinforcement member (3) made of a fiber reinforced plastic. The bracket body (2) has a surrounding portion (20). The reinforcement member (3) extends in a surrounding direction. A reinforcement member arrangement portion (20a) of the surrounding portion (20) is formed of an outer circumference (211), an inner circumference (212), and a connecting portion (213). The reinforcement member arrangement portion (20a) is in the shape of a letter I in cross section in which the cross sectional width (W3) of the connecting portion (213) is narrower than the cross sectional width (W1) of the outer circumference (211) and the cross sectional width (W2) of the inner circumference (212). The reinforcement member (3) is arranged on the outer circumference (211).Type: ApplicationFiled: March 19, 2021Publication date: October 26, 2023Applicant: Prospira CorporationInventors: Mizuki KATAURA, Tadashi ONISHI, Masaaki OHASHI
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Patent number: 10367393Abstract: A motor rotator includes: a rotor shaft configured to be journaled to a pair of bearing members of a motor device; and a rotor stack that includes a plurality of lamination plates and a plurality of small-diameter plates having an outer diameter smaller than an outer diameter of the lamination plates, the lamination plates and the small-diameter plates being stacked in an axial direction of the rotor shaft and integrated. The plurality of small-diameter plates forms a pair of bosses, the pair of bosses projecting from both sides of the plurality of lamination plates along the axial direction of the rotor shaft to abut on the pair of bearing members.Type: GrantFiled: March 9, 2016Date of Patent: July 30, 2019Assignee: SANYO DENKI CO., LTD.Inventors: Kouji Nakatake, Masaaki Ohashi
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Publication number: 20190225067Abstract: A torque rod comprises: a first annular portion elastically connected to a first attachment member to be connected to a power unit; a second annular portion elastically connected to a second attachment member to be connected to a vehicle; a connection stay portion extending radially outward from an outer circumferential part of the second annular portion and connecting with an outer circumferential part of the first annular portion, and including an upper branch portion and a lower branch portion having lower bending strength than the upper branch portion; a wall portion connecting with the first annular portion and the connection stay portion, and forming a cavity to which part of the first annular portion is exposed; and a projection portion projecting in an axial direction of the first annular portion from a site of the first annular portion exposed to the cavity.Type: ApplicationFiled: July 21, 2017Publication date: July 25, 2019Applicant: BRIDGESTONE CORPORATIONInventors: Masaaki OHASHI, Toru EBARA
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Patent number: 10170970Abstract: A stepper motor includes: a rotor including a rotor core and a permanent magnet, the rotor core including a plurality of teeth; and a stator arranged around the rotor while being spaced apart from the rotor and including a plurality of magnetic pole teeth, the magnetic pole teeth including a plurality of teeth and projecting toward the rotor. A winding is wound around every other magnetic pole tooth. A phase of the teeth of the magnetic pole teeth with no winding therearound is shifted from a phase of the teeth of the other magnetic pole teeth.Type: GrantFiled: September 3, 2015Date of Patent: January 1, 2019Assignee: SANYO DENKI CO., LTD.Inventors: Yasushi Yoda, Kouji Nakatake, Masaaki Ohashi
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Patent number: 10044241Abstract: A coil is wound via an electrically insulating member within a slot of a stator core of an electromagnetic motor which is formed of a stator and a rotor. Groove portions are formed to oppose one another in respective opposing portions of a slot opening portion side of the electrically insulating member. An electrically insulating sheet is disposed by being inserted into the pair of groove portions.Type: GrantFiled: August 22, 2014Date of Patent: August 7, 2018Assignee: Sanyo Denki Co., Ltd.Inventors: Kouji Nakatake, Yasushi Yoda, Masaaki Ohashi
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Patent number: 9859765Abstract: A winding insulation structure of a stator of an electromagnetic motor is provided, in which windings are wound inside slots of a stator iron core of the electromagnetic motor formed of a stator and a rotor with an insulation member therebetween, and in which an insulation sheet insertion portion for inserting an insulation sheet is formed between the stator iron core and the insulation member on a slot opening portion side of the stator iron core.Type: GrantFiled: July 29, 2014Date of Patent: January 2, 2018Assignee: Sanyo Denki Co., Ltd.Inventors: Kazuhiro Yoda, Masaaki Ohashi, Shogo Yoda
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Publication number: 20160268871Abstract: A motor rotator includes: a rotor shaft configured to be journaled to a pair of bearing members of a motor device; and a rotor stack that includes a plurality of lamination plates and a plurality of small-diameter plates having an outer diameter smaller than an outer diameter of the lamination plates, the lamination plates and the small-diameter plates being stacked in an axial direction of the rotor shaft and integrated. The plurality of small-diameter plates forms a pair of bosses, the pair of bosses projecting from both sides of the plurality of lamination plates along the axial direction of the rotor shaft to abut on the pair of bearing members.Type: ApplicationFiled: March 9, 2016Publication date: September 15, 2016Inventors: Kouji NAKATAKE, Masaaki OHASHI
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Patent number: 9435396Abstract: A vibrationproof device which is a liquid sealed vibrationproof device includes a tubular first mounting member (3) that is connected to either one of a vibration generating portion and a vibration receiving portion, a second mounting member (4) that is connected to other one, an elastic body (5) that elastically connects the first mounting member (3) and the second mounting member (4), and a partition member (8) that partitions a liquid chamber (7) of the inside of the first mounting member (3) into a main liquid chamber (7A) of an upper side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber (7B) of a lower side, and a restricting passage (80) which communicates with the main liquid chamber (7A) and the auxiliary liquid chamber (7B).Type: GrantFiled: October 15, 2015Date of Patent: September 6, 2016Assignee: BRIDGESTONE CORPORATIONInventors: Yoshinori Matsumoto, Motohiro Yanagida, Akira Ueki, Masaaki Ohashi, Yasuyuki Nagashima, Yutaka Higuchi
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Publication number: 20160079838Abstract: A stepper motor includes: a rotor including a rotor core and a permanent magnet, the rotor core including a plurality of teeth; and a stator arranged around the rotor while being spaced apart from the rotor and including a plurality of magnetic pole teeth, the magnetic pole teeth including a plurality of teeth and projecting toward the rotor. A winding is wound around every other magnetic pole tooth. A phase of the teeth of the magnetic pole teeth with no winding therearound is shifted from a phase of the teeth of the other magnetic pole teeth.Type: ApplicationFiled: September 3, 2015Publication date: March 17, 2016Inventors: Yasushi YODA, Kouji NAKATAKE, Masaaki OHASHI
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Patent number: 9270147Abstract: There is provided a stator that can suppress degradation in insulating performance and electrical strength performance, shorten a work time, and improve winding efficiency and heat radiation. The stator 1 includes a yoke part 20 formed to be annular, a plurality of tooth parts 30 protruding from the yoke part 20 in an inward direction perpendicular to an axial direction O of a rotor when the rotor is arranged in the yoke part 20, and protecting members 40 each of which is attached to both end surfaces of the tooth part 30 in the axial direction O to protect a corner of the tooth part 30. The protecting members 40 have a length in a slot 38 between the tooth parts 30 shorter than a half of an entire length of the tooth part 30 in the axial direction.Type: GrantFiled: December 19, 2012Date of Patent: February 23, 2016Assignee: SANYO DENKI CO., LTD.Inventors: Kouji Nakatake, Yukio Miura, Masaaki Ohashi, Zhang Hong
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Publication number: 20160033000Abstract: A vibrationproof device which is a liquid sealed vibrationproof device includes a tubular first mounting member (3) that is connected to either one of a vibration generating portion and a vibration receiving portion, a second mounting member (4) that is connected to other one, an elastic body (5) that elastically connects the first mounting member (3) and the second mounting member (4), and a partition member (8) that partitions a liquid chamber (7) of the inside of the first mounting member (3) into a main liquid chamber (7A) of an upper side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber (7B) of a lower side, and a restricting passage (80) which communicates with the main liquid chamber (7A) and the auxiliary liquid chamber (7B).Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Applicant: BRIDGESTONE CORPORATIONInventors: Yoshinori MATSUMOTO, Motohiro YANAGIDA, Akira UEKI, Masaaki OHASHI, Yasuyuki NAGASHIMA, Yutaka HIGUCHI
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Patent number: 9203270Abstract: A stator is provided. The stator includes a yoke part of an annular shape, tooth winding portions that protrude inward from the yoke part and around which an electric wire is wound, and a tooth end portion formed on an inward side of the tooth winding portion. The stator is formed by stacking steel plates in a direction corresponding to a rotational axis of a motor. The tooth winding portion is formed by stacking the steel plates having different shapes such that at an end portion in the stacking direction, thickness of the tooth winding portions gradually decrease toward the end portion in the stacking direction, and the yoke part and the tooth end portion include protruding portions formed by stacking the steel plates, such that the protruding portions protrude from the tooth winding portion in the stacking direction.Type: GrantFiled: December 12, 2012Date of Patent: December 1, 2015Assignee: Sanyo Denki Co., Ltd.Inventors: Kouji Nakatake, Masaaki Ohashi, Zhang Hong
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Patent number: 9188191Abstract: A vibrationproof device which is a liquid sealed vibrationproof device includes a tubular first mounting member (3) that is connected to either one of a vibration generating portion and a vibration receiving portion, a second mounting member (4) that is connected to other one, an elastic body (5) that elastically connects the first mounting member (3) and the second mounting member (4), and a partition member (8) that partitions a liquid chamber (7) of the inside of the first mounting member (3) into a main liquid chamber (7A) of an upper side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber (7B) of a lower side, and a restricting passage (80) which communicates with the main liquid chamber (7A) and the auxiliary liquid chamber (7B).Type: GrantFiled: June 10, 2010Date of Patent: November 17, 2015Assignee: BRIDGESTONE CORPORATIONInventors: Yoshinori Matsumoto, Motohiro Yanagida, Akira Ueki, Masaaki Ohashi, Yasuyuki Nagashima, Yutaka Higuchi
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Publication number: 20150061452Abstract: A coil is wound via an electrically insulating member within a slot of a stator core of an electromagnetic motor which is formed of a stator and a rotor. Groove portions are formed to oppose one another in respective opposing portions of a slot opening portion side of the electrically insulating member. An electrically insulating sheet is disposed by being inserted into the pair of groove portions.Type: ApplicationFiled: August 22, 2014Publication date: March 5, 2015Applicant: SANYO DENKI CO., LTD.Inventors: Kouji NAKATAKE, Yasushi YODA, Masaaki OHASHI
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Publication number: 20150035407Abstract: A winding insulation structure of a stator of an electromagnetic motor is provided, in which windings are wound inside slots of a stator iron core of the electromagnetic motor formed of a stator and a rotor with an insulation member therebetween, and in which an insulation sheet insertion portion for inserting an insulation sheet is formed between the stator iron core and the insulation member on a slot opening portion side of the stator iron core.Type: ApplicationFiled: July 29, 2014Publication date: February 5, 2015Inventors: Kazuhiro Yoda, Masaaki Ohashi, Shogo Yoda
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Patent number: 8740197Abstract: An outer tube (11) of a vibration-damping device (10) is split into a first outer tube member (21) at a first end along the direction of an axis (O), and a second outer tube member (22) at a second end. The second end of the first outer tube member (21) in the direction of the axis (O), and the first end of the second outer tube member (22) in the direction of the axis (O) overlap each other in a radial direction of the outer tube (11) with the second rubber elastic body therebetween (23). Through this configuration, the generation of a noise from the vibration-damping device can be suppressed.Type: GrantFiled: January 27, 2009Date of Patent: June 3, 2014Assignee: Bridgestone CorporationInventors: Masaaki Ohashi, Katsumi Someya
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Publication number: 20120139174Abstract: A vibrationproof device which is a liquid sealed vibrationproof device includes a tubular first mounting member (3) that is connected to either one of a vibration generating portion and a vibration receiving portion, a second mounting member (4) that is connected to other one, an elastic body (5) that elastically connects the first mounting member (3) and the second mounting member (4), and a partition member (8) that partitions a liquid chamber (7) of the inside of the first mounting member (3) into a main liquid chamber (7A) of an upper side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber (7B) of a lower side, and a restricting passage (80) which communicates with the main liquid chamber (7A) and the auxiliary liquid chamber (7B).Type: ApplicationFiled: June 10, 2010Publication date: June 7, 2012Applicant: BRIDGESTONE CORPORATIONInventors: Yoshinori Matsumoto, Motohiro Yanagida, Akira Ueki, Masaaki Ohashi, Yasuyuki Nagashima, Yutaka Higuchi
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Patent number: 8145097Abstract: A constant-velocity joint includes an outer ring having an annular space therein and an opening at one axial end thereof. The annular space is defined by a radially outer wall and a radially inner wall of the outer ring. At least one of the radially outer wall and the radially inner wall has three axially extending track grooves circumferentially spaced apart from each other by 120 degrees. A cage is inserted in the annular space. The cage has pockets at positions corresponding to the track grooves, respectively. A ball is received in each of the pockets so as to roll along one of the track grooves. A pair of diametrically opposed protrusions is formed at radially inner and outer open ends of the pockets of the cage to prevent the balls from coming out of the pockets of the cage.Type: GrantFiled: December 9, 2010Date of Patent: March 27, 2012Assignee: NTN CorporationInventors: Masayuki Yamazaki, Satoru Fukuzawa, Masaaki Ohashi
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Publication number: 20110081166Abstract: A constant-velocity joint includes an outer ring having an annular space therein and an opening at one axial end thereof. The annular space is defined by a radially outer wall and a radially inner wall of the outer ring. At least one of the radially outer wall and the radially inner wall has three axially extending track grooves circumferentially spaced apart from each other by 120 degrees. A cage is inserted in the annular space. The cage has pockets at positions corresponding to the track grooves, respectively. A ball is received in each of the pockets so as to roll along one of the track grooves. A pair of diametrically opposed protrusions is formed at radially inner and outer open ends of the pockets of the cage to prevent the balls from coming out of the pockets of the cage.Type: ApplicationFiled: December 9, 2010Publication date: April 7, 2011Inventors: Masayuki YAMAZAKI, Satoru FUKUZAWA, Masaaki OHASHI