Patents by Inventor Nobuyuki Eguchi

Nobuyuki Eguchi 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: 11933252
    Abstract: A sealing device includes a metal ring 110 with a cylindrical section 111 and an inward flange section 112 disposed at one end of the cylindrical section 111. A resin seal 120 has an outer circumference side fixed to the metal ring 110 and an inner circumference side configured to slidably and closely come into contact with an outer circumference surface of the rotary shaft in a state deformed to curve toward a sealing target region. A flat spring 130 includes a plate-shaped annular metal member and has an outer circumference side fixed to the metal ring 110 and an inner circumference side configured to deform to curve along the resin seal 120 and press the inner circumference side of the resin seal 120 radially inward. A metal slide bearing 140, is sandwiched between the resin seal 120 and the inward flange section 112 and configured to slide on the outer circumference surface of the rotary shaft.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: March 19, 2024
    Assignee: NOK CORPORATION
    Inventor: Nobuyuki Eguchi
  • Publication number: 20220205538
    Abstract: A sealing device in which damage on a resin seal by a plate spring can be suppressed is provided. The sealing device includes a metal ring 110, a resin seal 120 which is deformed on the radially inward side to be curved toward a sealed-region side and, in this state, slidably in close contact with an outer surface of a shaft 200, and a plate spring 130 which presses a radially inward side of the resin seal 120 radially inward, wherein, a bent portion 133 in which a part of a distal end of the plate spring 130 on the radially inward side is bent in advance so that the distal end of the plate spring 130 on the radially inward side is separated from the outer surface of the resin seal 120 in a state where the shaft 200 is inserted.
    Type: Application
    Filed: May 13, 2020
    Publication date: June 30, 2022
    Inventor: Nobuyuki EGUCHI
  • Patent number: 11373334
    Abstract: A terminal apparatus transmits, to a server, setting information including specification information of a camera based on input manipulation of the user, environment information indicating an environment in which the camera is installed, and a map image of a place where the camera is installed. The server calculates a capturing area of the camera in the map image, places a subject model that serves as a capturing target of the camera at a prescribed position in the capturing area and generates a synthesized image, generates a face image and a whole body image of the subject model located at the prescribed position that is inferred to be captured by the camera, transmits the synthesized image and the face image and the whole body image of the subject model to the terminal apparatus. The terminal apparatus displays the synthesized image, the face image and the whole body image of the subject model.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: June 28, 2022
    Assignee: PANASONIC I-PRO SENSING SOLUTIONS CO., LTD.
    Inventors: Tsutomu Onoue, Nobuyuki Eguchi, Akihiro Akiyama
  • Publication number: 20210363945
    Abstract: A sealing device includes a metal ring 110 with a cylindrical section 111 and an inward flange section 112 disposed at one end of the cylindrical section 111. A resin seal 120 has an outer circumference side fixed to the metal ring 110 and an inner circumference side configured to slidably and closely come into contact with an outer circumference surface of the rotary shaft in a state deformed to curve toward a sealing target region. A flat spring 130 includes a plate-shaped annular metal member and has an outer circumference side fixed to the metal ring 110 and an inner circumference side configured to deform to curve along the resin seal 120 and press the inner circumference side of the resin seal 120 radially inward. A metal slide bearing 140, is sandwiched between the resin seal 120 and the inward flange section 112 and configured to slide on the outer circumference surface of the rotary shaft.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 25, 2021
    Inventor: Nobuyuki EGUCHI
  • Publication number: 20210074022
    Abstract: A terminal apparatus transmits, to a server, setting information including specification information of a camera based on input manipulation of the user, environment information indicating an environment in which the camera is installed, and a map image of a place where the camera is installed. The server calculates a capturing area of the camera in the map image, places a subject model that serves as a capturing target of the camera at a prescribed position in the capturing area and generates a synthesized image, generates a face image and a whole body image of the subject model located at the prescribed position that is inferred to be captured by the camera, transmits the synthesized image and the face image and the whole body image of the subject model to the terminal apparatus. The terminal apparatus displays the synthesized image, the face image and the whole body image of the subject model.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 11, 2021
    Inventors: Tsutomu ONOUE, Nobuyuki EGUCHI, Akihiro AKIYAMA
  • Publication number: 20200300364
    Abstract: A sealing apparatus capable of suppressing an increase in sliding resistance while sealing performance is maintained over a long period of time is provided. A leaf spring 200 is provided with, at intervals in a circumferential direction, a plurality of projections 210 which are configured to dig into a seal member 100 as, in accordance with a shaft 600 being inserted into a shaft hole of a housing 700, a radially inward portion of the seal member 100 is deformed to curve toward a fluid-to-be-sealed side and a radially inward portion of the leaf spring 200 is deformed to curve along the seal member 100.
    Type: Application
    Filed: September 27, 2018
    Publication date: September 24, 2020
    Inventor: Nobuyuki EGUCHI
  • Publication number: 20190145519
    Abstract: In a dust seal, reinforcing rings held in a housing are provided with a seal lip, a tip of which is brought into a close and slidable contact with the outer peripheral surface of a shaft inserted through a shaft hole in the housing so as to be movable back and forth in the axial direction and a plate spring biasing the seal lip toward the outer peripheral surface of the shaft to compensate for the tension force of the seal lip. In the dust seal, in order to prevent plastic deformation of the plate spring caused by axial eccentricity and secure excellent sealability, a guide ring supported by the reinforcing rings is disposed on the axial outside of the seal lip and the shaft inserted through the inner periphery is held concentrically with the reinforcing rings.
    Type: Application
    Filed: April 20, 2017
    Publication date: May 16, 2019
    Applicant: NOK CORPORATION
    Inventor: Nobuyuki EGUCHI
  • Patent number: 9291271
    Abstract: Sandwiching of a foreign matter between a seal ring and a housing is suppressed, and abrasion of the housing and the seal ring is suppressed. The size of the diameter of a second seal portion 3 is set to be larger than the size d2 of the diameter of an inner peripheral face 81 so that the difference in diameter size between the second seal portion 3 and an inner peripheral face 81 of a housing 80 becomes 1.0 mm or less in a state before the ring body is provided in the annular gap.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 22, 2016
    Assignee: NOK CORPORATION
    Inventor: Nobuyuki Eguchi
  • Publication number: 20130313781
    Abstract: Sandwiching of a foreign matter between a seal ring and a housing is suppressed, and abrasion of the housing and the seal ring is suppressed. The size of the diameter of a second seal portion 3 is set to be larger than the size d2 of the diameter of an inner peripheral face 81 so that the difference in diameter size between the second seal portion 3 and an inner peripheral face 81 of a housing 80 becomes 1.0 mm or less in a state before the ring body is provided in the annular gap.
    Type: Application
    Filed: July 25, 2013
    Publication date: November 28, 2013
    Applicant: NOK CORPORATION
    Inventor: Nobuyuki EGUCHI
  • Patent number: 8573112
    Abstract: To cope with severe use conditions, a high-pressure fuel pump has a seal system (21) for separating/sealing fuel and lubricating oil, in an annular space between an axle reciprocating within the pump and a housing having the axle passing therethrough, wherein the seal system (21) consists of a combination of a fuel-side seal (31) for sealing fuel and lubricating-oil-side seal (41) for sealing lubricating oil, the fuel-side seal (31) is composed of a plastic-made seal ring (32) and a rubbery-elastomer-made O ring (33) for backup of the seal ring (32), the lubricating-oil-side seal (41) consists of a single body of single-lip-type oil seal (42) having a rubbery-elastomer-made seal lip (44) fitted to a metal ring (43) and arranged toward the lubricating oil side, and a distance between the fuel-side seal (31) and the lubricating-oil-side seal (41) is set to be larger than the reciprocating distance of the axle.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: November 5, 2013
    Assignees: NOK Corporation, Denso Corporation
    Inventors: Junichi Nakayama, Nobuyuki Eguchi, Tamio Inamura, Kokichi Hamamoto, Hiroshi Inoue
  • Patent number: 8123229
    Abstract: A resin lip type seal has first and second inner peripheral seal lips and an outer peripheral seal lip slidably contacting an operation member and a fixed member. The second inner peripheral seal lip is formed in a plate-shape to extend obliquely in an inner peripheral direction toward a second sealed fluid side so that an inner peripheral side end portion slidably contacts with a shaft and an outer peripheral side end portion contacts with a tapered surface formed on a housing or an installation member of the housing, whereby contact surface pressure in the inner peripheral direction acts on the inner peripheral side end portion.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: February 28, 2012
    Assignee: NOK Corporation
    Inventor: Nobuyuki Eguchi
  • Publication number: 20120032405
    Abstract: A sealing structure for a continuously variable transmission, which seals a clearance between a movable sheave and a cylinder. The continuously variable transmission may change a groove width of each pulley of the cylinder by moving a corresponding movable sheave though supply and discharge of a hydraulic pressure to and from the cylinder. The sealing structure includes an outer peripheral side seal member that is ring-shaped and disposed in a ring-shaped groove formed in one of the movable sheave and the cylinder; and an inner peripheral side seal member that is more elastic than the outer peripheral side seal member, ring-shaped, and disposed in a layered manner in the ring-shaped groove on an inner peripheral side with respect to the outer peripheral side seal member. A side of the outer peripheral side seal member where it contacts the inner peripheral side seal member is chamfered.
    Type: Application
    Filed: August 1, 2011
    Publication date: February 9, 2012
    Applicants: NOK CORPORATION, AISIN AW CO., LTD.
    Inventors: Yasuki NISHIZAWA, Kei ITO, Nobuyuki EGUCHI, Katsuyoshi SAKUMA
  • Publication number: 20110037235
    Abstract: Sandwiching of a foreign matter between a seal ring and a housing is suppressed, and abrasion of the housing and the seal ring is suppressed. The size of the diameter of a second seal portion 3 is set to be larger than the size d2 of the diameter of an inner peripheral face 81 so that the difference in diameter size between the second seal portion 3 and an inner peripheral face 81 of a housing 80 becomes 1.0 mm or less in a state before the ring body is provided in the annular gap.
    Type: Application
    Filed: April 10, 2009
    Publication date: February 17, 2011
    Inventor: Nobuyuki Eguchi
  • Patent number: 7766339
    Abstract: A seal ring for sealing an annular clearance between two members, which are made rotatable relative to each other. The seal ring is provided with a relief 5 throughout the circumference of a sliding face side to confront the side wall face 72 of an annular groove 71. This relief 5 is set to have a radially smaller width in the vicinity of a separate portion 2 and a radially larger width at a position apart from the separate portion 2, and the portion of the relief 5 to transit from the narrower portion to the wider portion is set to have a gradually changing width.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: August 3, 2010
    Assignee: NOK Corporation
    Inventors: Kyohei Umetsu, Nobuyuki Eguchi
  • Patent number: 7722051
    Abstract: A seal ring for sealing an annular clearance between two members, which are made rotatable relative to each other. The seal ring is provided with a relief 5 throughout the circumference of a sliding face side to confront the side wall face 72 of an annular groove 71. This relief 5 is set to have a radially smaller width in the vicinity of a separate portion 2 and a radially larger width at a position apart from the separate portion 2, and the portion of the relief 5 to transit from the narrower portion to the wider portion is set to have a gradually changing width.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: May 25, 2010
    Assignee: NOK Corporation
    Inventors: Kyohei Umetsu, Nobuyuki Eguchi
  • Patent number: 7654536
    Abstract: A seal ring for sealing an annular clearance between two members, which are made rotatable relative to each other. The seal ring is provided with a relief 5 throughout the circumference of a sliding face side to confront the side wall face 72 of an annular groove 71. This relief 5 is set to have a radially smaller width in the vicinity of a separate portion 2 and a radially larger width at a position apart from the separate portion 2, and the portion of the relief 5 to transit from the narrower portion to the wider portion is set to have a gradually changing width.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: February 2, 2010
    Assignee: NOK Corporation
    Inventors: Kyohei Umetsu, Nobuyuki Eguchi
  • Publication number: 20090267306
    Abstract: To provide a resin lip type seal having first inner and outer peripheral seal lips slidably contacting with an operation member and a fixed member and a second inner peripheral seal lip formed at the second sealed fluid side, wherein second inner peripheral seal lip is not forcibly bent and reduction in fastening due to creep can be compensated, a second inner peripheral seal lip (14) is formed in a plate-shape to extend obliquely in an inner peripheral direction toward the second sealed fluid side (B) so that an inner peripheral side end portion (15) slidably contacts with a shaft (2), and an outer peripheral side end portion (16) contacts with a taper surface (52) formed on a housing (3) or an installation member (5) of the housing (3), whereby contact surface pressure in the inner peripheral direction acts on the inner peripheral side end portion (15).
    Type: Application
    Filed: November 21, 2006
    Publication date: October 29, 2009
    Applicant: NOK Corporation
    Inventor: Nobuyuki Eguchi
  • Publication number: 20090008883
    Abstract: A high-pressure fuel pump with seal system that is usable under the conditions of “high speed”, “high pressure” and “fuel resistance”. There is provided a high-pressure fuel pump comprising an axle capable of reciprocating motion in the pump and seal system (21) for separating/sealing of fuel and lubricating oil as sealing objects in a circular space within a housing having the axle passing therethrough, wherein the seal system (21) consists of a combination of fuel-side seal (31) for sealing of fuel and lubricating-oil-side seal (41) for sealing of lubricating oil. The fuel-side seal (31) is composed of plastic-made seal ring (32) and rubbery-elastomer-made O ring (33) for backup of the seal ring (32). The lubricating-oil-side seal (41) consists of a single body of single-lip-type oil seal (42) wherein rubbery-elastomer-made seal lip (44) fitted to metal ring (43) is arranged so as to face the lubricating oil side.
    Type: Application
    Filed: December 14, 2006
    Publication date: January 8, 2009
    Applicant: DENSO CORPORATION
    Inventors: Junichi Nakayama, Nobuyuki Eguchi, Tamio Inamura, Kokichi Hamamoto, Hiroshi Inoue
  • Publication number: 20080277882
    Abstract: A seal ring for sealing an annular clearance between two members, which are made rotatable relative to each other. The seal ring is provided with a relief 5 throughout the circumference of a sliding face side to confront the side wall face 72 of an annular groove 71. This relief 5 is set to have a radially smaller width in the vicinity of a separate portion 2 and a radially larger width at a position apart from the separate portion 2, and the portion of the relief 5 to transit from the narrower portion to the wider portion is set to have a gradually changing width.
    Type: Application
    Filed: April 15, 2008
    Publication date: November 13, 2008
    Inventors: Umetsu Kyohei, Nobuyuki Eguchi
  • Patent number: 7341256
    Abstract: A seal ring which maintains a stable sealing performance over a long term is provided. In a first seal portion, linear contact portions which come into linear contact with the sidewall surface of an annular groove on the unsealed fluid side are continuously extended over the whole circumference of the seal ring from one side of a separation portion to the other side thereof, and the linear contact part provided at the convex part of the separation portion, and the linear contact part provided at the concave part of the separation portion are located at a distance in the radial direction of the seal ring.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: March 11, 2008
    Assignee: NOK Corporation
    Inventors: Shinya Nakaoka, Nobuyuki Eguchi, Naohiro Jotaki, Takaaki Yasudomi