Patents by Inventor Nobushi Yamazaki

Nobushi Yamazaki 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).

  • Patent number: 11022082
    Abstract: Provided is a fuel distribution device 1 including a fuel distribution pipe 3, a fuel pipe 4, and a connecting member 5. The fuel distribution pipe 3 has a seat section 21 having a first convex curved surface 24 formed on an outer circumferential surface thereof. The fuel pipe 4 has a seal section 27 having a second concave curved surface 28 formed on an inner circumferential surface thereof, and a second convex curved surface 29 corresponding to the second concave curved surface 28 is formed on an outer circumferential surface thereof. The connecting member 5 presses the seal section 27 against the seat section 21 from an opposite side of the fuel distribution pipe 3. A radius of curvature SR2 of the second concave curved surface 28 is greater than a radius of curvature SR1 of the first convex curved surface 24.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: June 1, 2021
    Assignee: SANOH INDUSTRIAL CO., LTD.
    Inventor: Nobushi Yamazaki
  • Publication number: 20200316621
    Abstract: There is provided a fuel distribution pipe 10 that distributes and supplies fuel supplied from a fuel pipe 2 to a plurality of fuel injection devices 3. The fuel distribution pipe 10 includes a pipe part 11 that stores the fuel in a high-pressure state, and a plurality of housings 12 that are joined to the pipe part 11 and supply the fuel to the fuel injection devices 3. A first housing 12A from among the plurality of housings 12 includes a first connection opening 17 that is connected to the fuel pipe 2 and communicates with the pipe part 11.
    Type: Application
    Filed: October 31, 2016
    Publication date: October 8, 2020
    Inventor: Nobushi YAMAZAKI
  • Publication number: 20190293214
    Abstract: Provided is a fuel distribution device 1 including a fuel distribution pipe 3, a fuel pipe 4, and a connecting member 5. The fuel distribution pipe 3 has a seat section 21 having a first convex curved surface 24 formed on an outer circumferential surface thereof. The fuel pipe 4 has a seal section 27 having a second concave curved surface 28 formed on an inner circumferential surface thereof, and a second convex curved surface 29 corresponding to the second concave curved surface 28 is formed on an outer circumferential surface thereof. The connecting member 5 presses the seal section 27 against the seat section 21 from an opposite side of the fuel distribution pipe 3. A radius of curvature SR2 of the second concave curved surface 28 is greater than a radius of curvature SR1 of the first convex curved surface 24.
    Type: Application
    Filed: January 18, 2017
    Publication date: September 26, 2019
    Applicant: Sanoh Industrial Co., Ltd.
    Inventor: Nobushi YAMAZAKI
  • Patent number: 10233915
    Abstract: A negative pressure pump has: a casing; a pump portion; a drive-side clutch plate that rotates integrally with a drive shaft, is movable in an axial direction of the drive shaft, and is magnetic; a driven-side clutch plate that rotates integrally with a driven shaft and transmits the rotation of the drive shaft to the driven shaft as a result of the drive-side clutch plate becoming engaged with it; a coil spring that presses the drive-side clutch plate against the driven-side clutch plate; an electromagnet that produces a magnetic force counter to a pressing force and pulls the drive-side clutch plate away from the driven-side clutch plate; and a jutting wall portion that is disposed in the casing and receives the driven-side clutch plate on which the pressing force acts and a jutting wall portion that supports one end portion of the coil spring.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: March 19, 2019
    Assignee: SANOH INDUSTRIAL CO., LTD.
    Inventor: Nobushi Yamazaki
  • Patent number: 9803640
    Abstract: A negative pressure pump includes an electrically insulative casing an electrically conductive rotary shaft and an electrically conductive vane. The casing is formed in a tubular shape, an axial direction one end of which is closed off by a cap body. The rotary shaft is disposed in the casing, is mechanically and electrically connected to an earthed power source, and is rotated by power being transmitted from the power source. The vane is disposed in the casing, is supported at the rotary shaft to freely reciprocate in a direction orthogonal to the rotary shaft, and is electrically connected to the power source via the rotary shaft. The vane rotates integrally with the rotary shaft, and end portions of the vane slide over an inner wall face of the casing. The vane divides the interior of the casing into a plurality of spaces and generates negative pressure.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: October 31, 2017
    Assignee: SANOH INDUSTRIAL CO., LTD.
    Inventor: Nobushi Yamazaki
  • Patent number: 9562531
    Abstract: A negative pressure pump has: a housing; a rotating shaft having a shaft portion, and a supporting portion; a vane that is supported at the supporting portion so as to freely move reciprocally in a direction orthogonal to the rotating shaft, and that rotates integrally with the rotating shaft, and whose end portions slide on an inner wall surface, and that sections an interior of the housing into plural spaces; an intake portion that is formed in the housing; a discharging portion that is formed further toward a vane rotating direction downstream side than the intake portion; and a concave portion that is formed in a bottom surface between the discharging portion and a curved surface in a vane rotating direction, and that communicates with a circular hole, and guides the lubricant, that is moved by the vane, to the circular hole.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: February 7, 2017
    Assignee: SANOH INDUSTRIAL CO., LTD.
    Inventor: Nobushi Yamazaki
  • Publication number: 20160208802
    Abstract: A negative pressure pump includes an electrically insulative casing an electrically conductive rotary shaft and an electrically conductive vane. The casing is formed in a tubular shape, an axial direction one end of which is closed off by a cap body. The rotary shaft is disposed in the casing, is mechanically and electrically connected to an earthed power source, and is rotated by power being transmitted from the power source. The vane is disposed in the casing, is supported at the rotary shaft to freely reciprocate in a direction orthogonal to the rotary shaft, and is electrically connected to the power source via the rotary shaft. The vane rotates integrally with the rotary shaft, and end portions of the vane slide over an inner wall face of the casing. The vane divides the interior of the casing into a plurality of spaces and generates negative pressure.
    Type: Application
    Filed: September 19, 2014
    Publication date: July 21, 2016
    Inventor: Nobushi Yamazaki
  • Publication number: 20160084244
    Abstract: A negative pressure pump has: a casing; a pump portion; a drive-side clutch plate that rotates integrally with a drive shaft, is movable in an axial direction of the drive shaft, and is magnetic; a driven-side clutch plate that rotates integrally with a driven shaft and transmits the rotation of the drive shaft to the driven shaft as a result of the drive-side clutch plate becoming engaged with it; a coil spring that presses the drive-side clutch plate against the driven-side clutch plate; an electromagnet that produces a magnetic force counter to a pressing force and pulls the drive-side clutch plate away from the driven-side clutch plate; and a jutting wall portion that is disposed in the casing and receives the driven-side clutch plate on which the pressing force acts and a jutting wall portion that supports one end portion of the coil spring.
    Type: Application
    Filed: May 19, 2014
    Publication date: March 24, 2016
    Inventor: Nobushi Yamazaki
  • Publication number: 20160084252
    Abstract: A negative pressure pump has: a housing; a rotating shaft having a shaft portion, and a supporting portion ; a vane that is supported at the supporting portion so as to freely move reciprocally in a direction orthogonal to the rotating shaft, and that rotates integrally with the rotating shaft, and whose end portions slide on an inner wall surface, and that sections an interior of the housing into plural spaces; an intake portion that is formed in the housing; a discharging portion that is formed further toward a vane rotating direction downstream side than the intake portion; and a concave portion that is formed in a bottom surface between the discharging portion and a curved surface in a vane rotating direction, and that communicates with a circular hole, and guides the lubricant, that is moved by the vane, to the circular hole.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 24, 2016
    Inventor: Nobushi Yamazaki
  • Patent number: 8092334
    Abstract: A variable speed front differential assembly for a vehicle is provided including a first side shaft, a second side shaft, and an input shaft. An offset differential case houses a differential mechanism engaging the first side shaft and the second side shaft. A speed selection assembly is movable from a first speed position to a second speed position. A speed reduction assembly is mounted adjacent the offset differential case. The speed selection assembly directly engages the offset differential case housing when in the first speed position such that a 1:1 drive ratio is achieved. The speed selection assembly engages the offset differential case through the speed reduction assembly when in the second speed position such that an increased drive ratio is achieved.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: January 10, 2012
    Assignee: GKN Driveline North America, Inc.
    Inventors: Brent Michael Peura, Nobushi Yamazaki
  • Patent number: 7641581
    Abstract: A differential device is provided with a case rotatable about an axis; an input member configured to receive the torque from the input shaft, the input member being housed in the case and including an engaging outer periphery drivingly engaged with the case; first and second output gears configured to respectively drivingly link with the output shafts, the first and second output gears being rotatably housed in the case to form a row with the input member along the axis; one or more first pinions being rotatably housed in the case in parallel with the axis and meshing with the first output gear, the first pinions having no overlap with the engaging outer periphery of the input member and the second output gears; and one or more second pinions being rotatably housed in the case in parallel with the axis and meshing with the second output gears and the first pinions, the second pinions extending beyond the input member to reach the first pinions.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: January 5, 2010
    Assignee: GKN Driveline Torque Technology KK
    Inventor: Nobushi Yamazaki
  • Patent number: 7464626
    Abstract: A torque transmission coupling includes a rotating shaft and a drive pinion shaft for carrying out input and output transmission of a torque. A torque control part is arranged between the rotating shaft and the drive pinion shaft for controlling torque transmission between the rotating shaft and the drive pinion shaft on the basis of a frictional engagement caused by an electromagnetic force of an electromagnet. At least a portion of the torque control part is arranged in an outer periphery of a taper roller bearing rotatably supporting the drive pinion shaft, thereby allowing a shortening of an entire length of the torque transmission coupling.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: December 16, 2008
    Assignee: Tochigi Fuji Sangyo Kabushiki Kaisha
    Inventors: Nobushi Yamazaki, Masao Teraoka, Isao Hirota, Naoshi Mogami
  • Patent number: 7361117
    Abstract: A differential limiter, including: differential mechanism, including: input member, first output member, second output member, and differential gear connecting the above three members so that the above three members differentially rotate; shaft member connected to the first output member and serving as output member of driving force; first cam mechanism including: first cam face on the first output member, and second cam face on the shaft member, the first cam face and second cam face are oppositely connected with each other in axial direction, to cause first axial thrust force and second axial thrust force according to driving torque; and frictional clutch between two of the above three members, and transmitting a differential limit torque. The first axial thrust force of the first output member presses the frictional clutch from first axial end. The second axial thrust force of the shaft member presses the frictional clutch from second axial end.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: April 22, 2008
    Assignee: GKN Driveline Torque Technology KK
    Inventors: Nobushi Yamazaki, Kazuo Kanazawa, Hiroshi Yamashita, Mamoru Murakami
  • Publication number: 20080004152
    Abstract: A differential device is provided with a case rotatable about an axis; an input member configured to receive the torque from the input shaft, the input member being housed in the case and including an engaging outer periphery drivingly engaged with the case; first and second output gears configured to respectively drivingly link with the output shafts, the first and second output gears being rotatably housed in the case to form a row with the input member along the axis; one or more first pinions being rotatably housed in the case in parallel with the axis and meshing with the first output gear, the first pinions having no overlap with the engaging outer periphery of the input member and the second output gears; and one or more second pinions being rotatably housed in the case in parallel with the axis and meshing with the second output gears and the first pinions, the second pinions extending beyond the input member to reach the first pinions.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 3, 2008
    Applicant: GKN Driveline Torque Technology KK
    Inventor: Nobushi Yamazaki
  • Publication number: 20070270264
    Abstract: A hydrostatic coupling assembly for use in the driveline of a motor vehicle includes a first coupling part (3) and a second coupling part (4); a displacement machine (22) having a first rotor (23) which is eccentrically supported relative to one of the coupling parts (3, 4), and a second rotor (25) which is connected to the other one of the two coupling parts (3, 4). The first rotor (23) and second rotor (25) form displacement chambers (31) for hydraulic fluid thereby creating a pump. An annular chamber (50) communicates with the displacement chambers through first and second connecting channels (34, 35). A sliding sleeve (38) is axially displaceable between an open and closed position in which the outlets of the first and second connecting channels (34, 35) in the annular chamber (50) are open or closed, respectively.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 22, 2007
    Inventors: Artur Grunwald, Walter Wengenroth, Boris Kracheninnikov, Stefan Nicklich, Nobushi Yamazaki
  • Publication number: 20070170030
    Abstract: In order to make it possible to shorten an entire length, a torque transmission coupling is provided with a rotating shaft (11) and a drive pinion shaft (17) for carrying out input and output transmission of a torque, and a torque control means (125) arranged between the rotating shaft (11) and the drive pinion shaft (17) and controlling a torque transmission between the rotating shaft (11) and the drive pinion shaft (17) on the basis of a frictional engagement caused by an electromagnetic force of an electromagnet (133), and at least a part of the torque control means (125) is arranged in an outer periphery of a taper roller bearing (117) rotatably supporting the drive pinion shaft (17).
    Type: Application
    Filed: March 20, 2007
    Publication date: July 26, 2007
    Applicant: TOCHIGI FUJI SANGYO KABUSHIKI KAISHA
    Inventors: Nobushi Yamazaki, Masao Teraoka, Isao Hirota, Naoshi Mogami
  • Patent number: 7223191
    Abstract: Between a speed reducing mechanism (15, 17, 19) for speed-reducing drive power of an electric motor and a differential apparatus (7) for distributing speed-reduced drive power to axle ends is disposed a clutch (5) configured for interruptive transmission of drive power.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: May 29, 2007
    Assignee: Tochigi Fuji Sangyo Kabushiki Kaisha
    Inventors: Masashi Aikawa, Nobushi Yamazaki
  • Patent number: 7210565
    Abstract: In order to make it possible to shorten an entire length, a torque transmission coupling is provided with a rotating shaft (11) and a drive pinion shaft (17) for carrying out input and output transmission of a torque, and a torque control means (125) arranged between the rotating shaft (11) and the drive pinion shaft (17) and controlling a torque transmission between the rotating shaft (11) and the drive pinion shaft (17) on the basis of a frictional engagement caused by an electromagnetic force of an electromagnet (133), and at least a part of the torque control means (125) is arranged in an outer periphery of a taper roller bearing (117) rotatably supporting the drive pinion shaft (17).
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: May 1, 2007
    Assignee: Tochigi Fuji Sangyo Kabushiki Kaisha
    Inventors: Nobushi Yamazaki, Masao Teraoka, Isao Hirota, Naoshi Mogami
  • Publication number: 20060240935
    Abstract: A differential limiter, including: differential mechanism, including: input member, first output member, second output member, and differential gear connecting the above three members so that the above three members differentially rotate; shaft member connected to the first output member and serving as output member of driving force; first cam mechanism including: first cam face on the first output member, and second cam face on the shaft member, the first cam face and second cam face are oppositely connected with each other in axial direction, to cause first axial thrust force and second axial thrust force according to driving torque; and frictional clutch between two of the above three members, and transmitting a differential limit torque. The first axial thrust force of the first output member presses the frictional clutch from first axial end. The second axial thrust force of the shaft member presses the frictional clutch from second axial end.
    Type: Application
    Filed: April 12, 2006
    Publication date: October 26, 2006
    Applicants: GNK Driveline Torque Technology KK, Fuji Jukogyo Kabushiki Kaisha
    Inventors: Nobushi Yamazaki, Kazuo Kanazawa, Hiroshi Yamashita, Mamoru Murakami
  • Patent number: 7086978
    Abstract: Between a speed reducing mechanism (15, 17, 19) for speed-reducing drive power of an electric motor and a differential apparatus (7) for distributing speed-reduced drive power to axle ends is disposed a clutch (5) configured for interruptive transmission of drive power.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: August 8, 2006
    Assignee: Tochigi Fuji Sangyo Kabushiki Kaisha
    Inventors: Masashi Aikawa, Nobushi Yamazaki