Patents by Inventor Hiroyuki Yao
Hiroyuki Yao 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: 11922650Abstract: It is possible to estimate a slack level accurately in consideration of a shape of a deformed cable. A point cloud analysis device sets a plurality of regions of interest obtained by window-searching a wire model including a quadratic curve model representing a cable obtained from a point cloud consisting of three-dimensional points on an object, the region of interest being divided into a first region and a second region.Type: GrantFiled: May 8, 2019Date of Patent: March 5, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Hitoshi Niigaki, Masaki Waki, Masaaki Inoue, Yasuhiro Yao, Tomoya Shimizu, Hiroyuki Oshida, Kana Kurata, Shingo Ando, Atsushi Sagata
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Patent number: 10202140Abstract: A pin assembly includes: a resin pin; and a collar fitted to a round shaft portion of the resin pin and having higher hardness than the resin pin. The round shaft portion is sheared to cancel connection between a first plate and a second plate upon secondary collision of a vehicle. The collar includes an end face received by a reception surface of the second plate, and shears the round shaft portion in a shear plane along the end face upon the secondary collision. The round shaft portion includes a hollow hole. An inner circumference of the hollow hole includes a straight portion which has a generating line parallel to an axial direction of the round shaft portion and which is traversed by a plane including the end face of the collar.Type: GrantFiled: December 25, 2014Date of Patent: February 12, 2019Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, DAIWA PLASTICS CO., LTD.Inventors: Eiji Tanaka, Susumu Imagaki, Hiroyuki Yao, Kenji Imamura, Kentaro Okuno, Eiji Hayashi
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Patent number: 9604664Abstract: Column moving direction is referred to as first direction, opposite direction to the first direction is referred to as second direction, and direction which is orthogonal to the first direction is referred to as third direction. First suspending bolt is in contact with cylindrical surface which is formed by end portion of first elongated slot in second direction to thereby be positioned in relation to the second direction and the third direction. Second suspending bolt is positioned only in relation to the second direction by inner surface of end portion of second elongated slot in the second direction. Positions of portions of the end portions of the elongated slots which are situated farthest in the second direction are made equal to each other with respect to the second direction, and both the suspending bolts are aligned in position with respect to the first direction.Type: GrantFiled: June 10, 2014Date of Patent: March 28, 2017Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Eiji Tanaka, Hiroyuki Yao, Shigeru Hoshino
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Publication number: 20160332657Abstract: A pin assembly includes: a resin pin; and a collar fitted to a round shaft portion of the resin pin and having higher hardness than the resin pin. The round shaft portion is sheared to cancel connection between a first plate and a second plate upon secondary collision of a vehicle. The collar includes an end face received by a reception surface of the second plate, and shears the round shaft portion in a shear plane along the end face upon the secondary collision. The round shaft portion includes a hollow hole. An inner circumference of the hollow hole includes a straight portion which has a generating line parallel to an axial direction of the round shaft portion and which is traversed by a plane including the end face of the collar.Type: ApplicationFiled: December 25, 2014Publication date: November 17, 2016Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, DAIWA PLASTICS CO., LTD.Inventors: Eiji TANAKA, Susumu IMAGAKI, Hiroyuki YAO, Kenji IMAMURA, Kentaro OKUNO, Eiji HAYASHI
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Patent number: 9381936Abstract: A steering column device is provided with a pair of suspension shafts which connects a first plate of a fixed bracket and a second plate of a movable bracket, thereby suspending a movable jacket through the movable bracket. A pair of first holes, each of which is an elongated hole, into which the pair of suspension shafts is inserted, is formed in the first plate. A connection and separation mechanism which separates, at the time of a secondary collision, the second plate from a predetermined position of the first plate in a column movement direction includes a resin pin disposed only between the pair of first holes in relation to a direction orthogonal to the column movement direction.Type: GrantFiled: January 30, 2014Date of Patent: July 5, 2016Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Eiji Tanaka, Takeshi Matsuda, Susumu Imagaki, Hiroyuki Yao, Shigeru Hoshino
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Patent number: 9359002Abstract: A steering device includes a fixed bracket which includes a first plate, a movable jacket which rotatably supports a steering shaft, a movable bracket which includes a second plate, a suspension mechanism and a resin pin. The suspension mechanism includes a suspension shaft connecting the first plate and the second plate, and is configured to move in a column movement direction along with the second plate at the time of the secondary collision. The resin pin is inserted into a first hole provided in the first plate and a second hole provided in the second plate, and is configured to be broken at the time of the secondary collision. The resin pin has a predetermined amount of play in a direction orthogonal to the column movement direction with respect to at least one of the first hole and the second hole.Type: GrantFiled: July 14, 2015Date of Patent: June 7, 2016Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Eiji Tanaka, Hiroyuki Yao, Shunsuke Nunomura, Yoshito Fujita
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Patent number: 9346482Abstract: A steering column device is provided with a suspension mechanism which is supported on a fixed bracket, suspends a movable jacket through a movable bracket, and can move in a column movement direction at the time of a secondary collision. The suspension mechanism includes a suspension bolt which is inserted into a first plate of the fixed bracket and a second plate of a tilt bracket and is screwed into a nut. A leaf spring which is interposed between a head portion of the suspension bolt and the second plate in a state of bringing a stepped portion of the suspension bolt into contact with the second plate biases the first plate to the second plate side. Further, the second plate is pinched between the stepped portion and the nut.Type: GrantFiled: January 29, 2014Date of Patent: May 24, 2016Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Eiji Tanaka, Susumu Imagaki, Takeshi Matsuda, Hiroyuki Yao, Shigeru Hoshino
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Publication number: 20160107677Abstract: Column moving direction is referred to as first direction, opposite direction to the first direction is referred to as second direction, and direction which is orthogonal to the first direction is referred to as third direction. First suspending bolt is in contact with cylindrical surface which is formed by end portion of first elongated slot in second direction to thereby be positioned in relation to the second direction and the third direction. Second suspending bolt is positioned only in relation to the second direction by inner surface of end portion of second elongated slot in the second direction. Positions of portions of the end portions of the elongated slots which are situated farthest in the second direction are made equal to each other with respect to the second direction, and both the suspending bolts are aligned in position with respect to the first direction.Type: ApplicationFiled: June 10, 2014Publication date: April 21, 2016Inventors: Eiji TANAKA, Hiroyuki YAO, Shigeru HOSHINO
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Publication number: 20150360714Abstract: A steering column device is provided with a pair of suspension shafts which connects a first plate of a fixed bracket and a second plate of a movable bracket, thereby suspending a movable jacket through the movable bracket. A pair of first holes, each of which is an elongated hole, into which the pair of suspension shafts is inserted, is formed in the first plate. A connection and separation mechanism which separates, at the time of a secondary collision, the second plate from a predetermined position of the first plate in a column movement direction includes a resin pin disposed only between the pair of first holes in relation to a direction orthogonal to the column movement direction.Type: ApplicationFiled: January 30, 2014Publication date: December 17, 2015Inventors: Eiji TANAKA, Takeshi MATSUDA, Susumu IMAGAKI, Hiroyuki YAO, Shigeru HOSHINO
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Publication number: 20150344064Abstract: A steering column device is provided with a suspension mechanism which is supported on a fixed bracket, suspends a movable jacket through a movable bracket, and can move in a column movement direction at the time of a secondary collision. The suspension mechanism includes a suspension bolt which is inserted into a first plate of the fixed bracket and a second plate of a tilt bracket and is screwed into a nut. A leaf spring which is interposed between a head portion of the suspension bolt and the second plate in a state of bringing a stepped portion of the suspension bolt into contact with the second plate biases the first plate to the second plate side. Further, the second plate is pinched between the stepped portion and the nut.Type: ApplicationFiled: January 29, 2014Publication date: December 3, 2015Inventors: Eiji TANAKA, Susumu IMAGAKI, Takeshi MATSUDA, Hiroyuki YAO, Shigeru HOSHINO
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Publication number: 20150314802Abstract: A steering device includes a fixed bracket which includes a first plate, a movable jacket which rotatably supports a steering shaft, a movable bracket which includes a second plate, a suspension mechanism and a resin pin. The suspension mechanism includes a suspension shaft connecting the first plate and the second plate, and is configured to move in a column movement direction along with the second plate at the time of the secondary collision. The resin pin is inserted into a first hole provided in the first plate and a second hole provided in the second plate, and is configured to be broken at the time of the secondary collision. The resin pin has a predetermined amount of play in a direction orthogonal to the column movement direction with respect to at least one of the first hole and the second hole.Type: ApplicationFiled: July 14, 2015Publication date: November 5, 2015Inventors: Eiji TANAKA, Hiroyuki YAO, Shunsuke NUNOMURA, Yoshito FUJITA
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Patent number: 9010806Abstract: In a steering system, a first through-hole is formed in a stationary bracket secured to vehicle body. A second through-hole is formed in a movable bracket that is movable relative to the stationary bracket in a prescribed direction at the time of a secondary collision. A pin passed through both the first through-hole and the second through-hole breaks at a position between the first through-hole and the second through-hole at the time of the secondary collision, thereby allowing the movable bracket to move relative to the stationary bracket. An under plate attached to the movable bracket closes the second through-hole from below.Type: GrantFiled: May 16, 2014Date of Patent: April 21, 2015Assignee: JTEKT CorporationInventors: Eiji Tanaka, Susumu Imagaki, Hiroyuki Yao, Takeshi Matsuda
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Publication number: 20140346760Abstract: In a steering system, a first through-hole is formed in a stationary bracket secured to vehicle body. A second through-hole is formed in a movable bracket that is movable relative to the stationary bracket in a prescribed direction at the time of a secondary collision. A pin passed through both the first through-hole and the second through-hole breaks at a position between the first through-hole and the second through-hole at the time of the secondary collision, thereby allowing the movable bracket to move relative to the stationary bracket. An under plate attached to the movable bracket closes the second through-hole from below.Type: ApplicationFiled: May 16, 2014Publication date: November 27, 2014Inventors: Eiji TANAKA, Susumu IMAGAKI, Hiroyuki YAO, Takeshi MATSUDA
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Patent number: 8491695Abstract: An iron-base sintered part having high density and totally enhanced strength, toughness and abrasion resistance, a manufacturing method of the iron-base sintered part, and an actuator are disclosed. The iron-base sintered part is formed by an iron-nickel-molybdenum-carbon-based sintered alloy, has density of 7.25 g/cm3 or more, and has a carburization quenched structure. A method for manufacturing the iron-base sintered part includes a molding process of charging a raw mixture powder of an iron-nickel-molybdenum-based metal powder and a carbon-based powder into a cavity of a molding die and compressing the raw powder in the cavity to form a consolidation body, a sintering process of sintering the consolidation body at a sintering temperature to form a sintered alloy, and a carburization quenching process of heating the sintered alloy in a carburization atmosphere and quenching the heated alloy.Type: GrantFiled: November 15, 2006Date of Patent: July 23, 2013Assignee: JTEKT CorporationInventors: Toshiyuki Saito, Takumi Mio, Koji Nishi, Hajime Fukami, Kentaro Yamauchi, Hiroyuki Yao, Masayuki Yamamoto, Hideki Yamazaki
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Patent number: 8172561Abstract: A metal part in which a base material of silicon-aluminum alloy having 1 to 25% by mass of silicon as an anode is immersed in an electrolyte together with a cathode, and at least a portion of a surface of the base material is anodized and coated with an anodic oxide film. A current density provided to both the anode and the cathode is increased from an initial current density of 0 A/dm2 at a rate between 0.15 and 0.35 A/dm2 per minute, wherein once the current density reaches a prescribed current density of between 0.8 A/dm2 and 1.2 A/dm2, the current density provided to the anode and the cathode is maintained at the prescribed current density.Type: GrantFiled: June 5, 2009Date of Patent: May 8, 2012Assignee: JTEKT CorporationInventors: Toshiyuki Saito, Takumi Mio, Koji Nishi, Hajime Fukami, Atsushi Eto, Hiroyuki Yao
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Publication number: 20090301887Abstract: A method of manufacturing a metal part in which a base material of an aluminum alloy as an anode is immersed in an electrolyte together with a cathode, and at least a portion of a surface of the base material is anodized and coated with an anodic oxide film, the method includes: increasing a current density provided to both the anode and the cathode from an initial current density of 0 A/dm2 at a rate that is lower than or equal to 0.35 A/dm2 per minute, wherein once the current density reaches a prescribed current density, the current density provided to the anode and the cathode is maintained at the prescribed current density.Type: ApplicationFiled: June 5, 2009Publication date: December 10, 2009Applicant: JTEKT CORPORATIONInventors: Toshiyuki SAITO, Takumi MIO, Koji NISHI, Hajime FUKAMI, Atsushi Eto, Hiroyuki Yao
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Publication number: 20090114046Abstract: An iron-base sintered part having high density and totally enhanced strength, toughness and abrasion resistance, a manufacturing method of the iron-base sintered part, and an actuator are disclosed. The iron-base sintered part is formed by an iron-nickel-molybdenum-carbon-based sintered alloy, has density of 7.25 g/cm3 or more, and has a carburization quenched structure. A method for manufacturing the iron-base sintered part includes a molding process of charging a raw mixture powder of an iron-nickel-molybdenum-based metal powder and a carbon-based powder into a cavity of a molding die and compressing the raw powder in the cavity to form a consolidation body, a sintering process of sintering the consolidation body at a sintering temperature to form a sintered alloy, and a carburization quenching process of heating the sintered alloy in a carburization atmosphere and quenching the heated alloy.Type: ApplicationFiled: November 15, 2006Publication date: May 7, 2009Applicant: JTEKT CorporationInventors: Toshiyuki Saito, Takumi Mio, Koji Nishi, Hajime Fukami, Kentaro Yamauchi, Hiroyuki Yao, Masayuki Yamamoto, Hideki Yamazaki
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Patent number: 6877969Abstract: Within an angular area where each vane of a vane pump having backpressure grooves is moved radially inwardly as the rotor rotates, the outer circumferential edge of the backpressure groove is indented toward the rotational axis of the rotor along a locus drawn by the radial innermost end of each vane so that the radial innermost end of each vane does not protrude radially inwardly beyond a predetermined distance from the indented part of the outer circumferential edge of the backpressure groove.Type: GrantFiled: April 7, 2004Date of Patent: April 12, 2005Assignee: Toyoda Koki Kabushiki KaishaInventors: Hiroyuki Yao, Hidetoshi Fujiwara, Kentaro Yamauchi
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Publication number: 20040202565Abstract: Disclosed is a vane pump capable of decreasing abrasion at a cam surface at the internal surface of a cam ring, pulsation in pump ejected pressure and noise in pump operation. The vane pump is provided with a vane pump section which includes a cam ring rotatably receiving therein a rotor which has a plurality of slits formed radially. Vanes are radially slidably received respectively in the slits to be rotated bodily with the rotor with radial outermost ends sliding on the cam surface. Axial opposite end surfaces of the vane pump section are closed by side wall members, and a backpressure groove which is supplied with the pump ejection pressure in communication with radial innermost end portions of the slits is formed on an inside end surface of each side wall member to encircle the rotational axis of the rotor.Type: ApplicationFiled: April 7, 2004Publication date: October 14, 2004Applicant: TOYODA KOKI KABUSHIKI KAISHAInventors: Hiroyuki Yao, Hidetoshi Fujiwara, Kentaro Yamauchi
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Patent number: 4691476Abstract: A vehicle door structure having an exterior surface of a glass window located in a vehicle door. A door window is vertically displaceable in conjunction with a slider. The slider has a vertically extending groove into which an end portion of the door window is fitted. An adhesive is provided between the end portion of the door window and the inside of the slider to fix the door window in the groove of the slider. The upper portion of the slider closes the space in which the adhesive is filled so that the adhesive does not spread out on the upper surface of the slider, thereby preventing accumulation of foreign matter such as dust and dirt, and adding to the aesthetic appearance of the assembly.Type: GrantFiled: December 3, 1984Date of Patent: September 8, 1987Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroyuki Yao, Yuji Okamoto