Patents Assigned to Oiles Corporation
  • Strut sliding bearing
    Patent number: 8066435
    Abstract: A thrust sliding bearing (1) includes an upper casing (3) which is made of polyacetal resin and has an annular lower surface (2); a lower casing (5) which is made of a reinforced synthetic resin including, in addition to polyacetal resin, reinforcing fibers such as glass fibers contained in this polyacetal resin, is superposed on the upper casing (3) so as to be rotatable about an axis O of the upper casing (3) in an R direction, and has an annular upper surface (4) opposed to the annular lower surface (2) of the upper casing (3); an annular thrust sliding bearing piece (6) which is made of polyacetal resin and is interposed between the annular lower surface (2) and the annular upper surface (4); and a tubular radial sliding bearing piece (7) made of polyacetal resin.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: November 29, 2011
    Assignee: Oiles Corporation
    Inventors: Kazuyuki Miyata, Ryohei Kaneko
  • Shaped expanded graphite article and method for producing the same
    Patent number: 8048527
    Abstract: A formed exfoliated graphite article which comprises an oxidation-resistant coating layer formed at least in the surface layer portion thereof, preferably wherein the oxidation-resistant coating layer contains a boron element and a phosphorus element, the content of a boron element in the oxidation-resistant coating layer is 1 mass % or more, the content of a phosphorus in the oxidation-resistant coating layer is 0.1 mass % or more, and the oxidation-resistant coating layer is formed in a thickness of 0.5 ?m or more.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: November 1, 2011
    Assignees: Toyo Tanso Co., Ltd., Oiles Corporation
    Inventors: Yoshiaki Hirose, Takao Matsui
  • SEISMIC ISOLATION DEVICE AND SEISMIC ISOLATION STRUCTURE
    Publication number: 20110227265
    Abstract: The present invention is intended to provide a seismic isolation device which, regardless of a load to be supported, is capable of reducing acceleration through lengthening a natural period of an upper structure, with excellent vibration energy absorbing capacity by obtaining a properly preferable frictional force as well as a returning characteristic, and others.
    Type: Application
    Filed: October 20, 2008
    Publication date: September 22, 2011
    Applicants: TOKYO DENKI UNIVERSITY, OILES CORPORATION
    Inventors: Satoshi Fujita, Go Tanaka, Mitsuru Miyazaki, Hideo Ozawa
  • Sliding bearing
    Patent number: 8016489
    Abstract: A sliding bearing 1 includes an upper casing 3 having an annular lower surface 2; a lower casing 5 which is superposed on the upper casing 3 so as to be rotatable about an axis O of the upper casing 3 and has an annular upper surface 4 opposed to the annular lower surface 2; an annular thrust sliding bearing piece 6 disposed in an annular space 36 between the annular lower surface 2 and the annular upper surface 4; and a seal means 38 disposed on an outer peripheral side of the annular space 36.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: September 13, 2011
    Assignee: Oiles Corporation
    Inventors: Ryohei Kaneko, Atsushi Yoshida
  • CAM APPARATUS
    Publication number: 20110203407
    Abstract: A cam apparatus of a suspended cam type includes a cam driver 2 having a sliding surface 9; a cam slide 3 which is moved with its sliding surface 28 in contact with the sliding surface 9 of the cam driver 2; a cam-slide supporting means 4 for supporting the cam slide 3 movably in an A direction; and a returning mechanism 5 for returning the cam slide 3 to its rear initial position in the A direction of that cam slide 3.
    Type: Application
    Filed: May 23, 2008
    Publication date: August 25, 2011
    Applicant: Oiles Corporation
    Inventor: Takayuki Miyaji
  • Damper and vibration damping structure using the same
    Patent number: 8002093
    Abstract: A damper includes a hollow outer elongated body; a hollow inner elongated body; a liquid viscous body or liquid viscoelastic body disposed in a gap between an inner surface of the elongated body and an outer surface of the elongated body in such a manner as to be in contact with the inner surface and the outer surface of these elongated bodies, respectively; and first and second attaching structures. Further, a controller may be provided to control an increase or decrease in the internal pressure of the liquid viscous body or the liquid viscoelastic body.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: August 23, 2011
    Assignee: Oiles Corporation
    Inventors: Masami Mochimaru, Sumio Kawaguchi, Mitsuru Miyazaki, Akio Suzuki
  • SYNTHETIC RESIN-MADE THRUST SLIDING BEARING
    Publication number: 20110194793
    Abstract: In a synthetic resin-made thrust sliding bearing 1, a silicone grease whose base oil is a silicone oil, whose coefficient of kinematic viscosity at 25° C. is not less than 100 cSt and not more than 500,000 cSt, and which contains a thickener so as to set its worked penetration to not less than 200 and not more than 400 is interposed at sliding interfaces between, on the one hand, an upper surface of a lower annular flat plate-shaped portion 202 defining a bottom surface of a lower annular recess 204 and a lower surface of an upper annular flat plate-shaped portion 102 and, on the other hand, an upper surface and a lower surface of a thrust bearing piece 300 which are respectively brought into sliding contact with the upper and the lower surface.
    Type: Application
    Filed: August 25, 2009
    Publication date: August 11, 2011
    Applicant: OILES CORPORATION
    Inventors: Ryohei Kaneko, Yoshiaki Furusawa, Masaya Kinjyo
  • Sliding bearing
    Patent number: 7993061
    Abstract: A sliding bearing (1) includes an upper casing (3) which is made of polyacetal resin as a synthetic resin, has an annular surface (2), and serves as a first bearing body; a second bearing body (5) which is made of a synthetic resin, is superposed on the upper casing (3) so as to be rotatable about an axis (O), and has an synthetic resin-made annular surface (4) opposed to the annular surface (2); and a synthetic resin-made annular sheet (6) which is interposed between the annular surfaces (2) and (4) and slidably abuts against at least one of the upper casing (3) and the bearing body (5).
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: August 9, 2011
    Assignee: Oiles Corporation
    Inventors: Tadashi Watai, Kazuyuki Miyata, Ryohei Kaneko
  • Solid lubricant and sliding member
    Publication number: 20110190178
    Abstract: Lead-free solid lubricant to be embedded in pores or grooves formed at a sliding surface of a sliding member body, comprising 20 to 40% by weight of at least one wax selected from hydrocarbon waxes, higher-fatty acids, esters of higher-fatty acid and amides of higher-fatty acid, 20 to 40% by weight of melamine cyanurate, and 20 to 50% by weight of a polytetrafluoroethylene resin. The lubricant exhibits sliding properties identical to or higher than those of lead-containing solid lubricants, even under high load conditions.
    Type: Application
    Filed: April 11, 2011
    Publication date: August 4, 2011
    Applicant: OILES CORPORATION
    Inventors: Masayuki Rokugawa, Takuya Hirayama
  • METHOD FOR PRESS PUNCHING A HOLE IN SHEET METAL AND PRESS DIE
    Publication number: 20110174127
    Abstract: A punch unit for a press die for punching a hole in sheet metal includes: a piercing punch provided with a sharp projection; a plunger for pressing the piercing punch; a cylinder for supporting the piercing punch and the plunger slidably in a punching direction; and a coil spring for retracting the piercing punch and the plunger. Also disclosed are a press die for punching a hole in sheet metal and a punching method using the punch unit.
    Type: Application
    Filed: March 31, 2011
    Publication date: July 21, 2011
    Applicants: Ones Co., Ltd., Oiles Corporation
    Inventor: Masatoshi OISHI
  • Mating member and a sliding member
    Patent number: 7939475
    Abstract: A resin composition for sliding members which comprises 1 to 10 wt. % hydrocarbon wax, 0.1 to 3 wt. % at least one member selected from the group consisting of phosphates, sulfates, and carbonates, 1 to 20 wt. % phenoxy resin, 0.1 to 5 wt. % compatibilizing agent, and a polybutylene terephthalate resin as the remainder; and a sliding member obtained by molding the resin composition. The resin composition for sliding members and the sliding member obtained by molding the resin composition have excellent frictional and wearing properties even when a soft metal, e.g., an aluminum alloy, is used as a mating material.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: May 10, 2011
    Assignee: Oiles Corporation
    Inventor: Kazuo Hirai
  • Rack guide and rack-and-pinion type steering apparatus having the rack guide
    Patent number: 7926376
    Abstract: A rack and pinion steering device has a pinion rotatable in the R-direction, a rack bar having rack teeth meshing with the pinion and rectilinearly movable in the A-direction, a housing for rotatably supporting the pinion, a rack guide for slidably supporting the rack bar, and an elastic means for pressing the rack guide toward the pinion.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: April 19, 2011
    Assignees: Oiles Corporation, JTEKT Corporation
    Inventors: Masahiko Hirose, Masaaki Hashimoto, Nobuyuki Sato, Masao Shimura, Yoshiro Kuzumi
  • Spherical bearing for lock gate door and lock gate door having the same
    Patent number: 7904993
    Abstract: A lock gate door (1) includes a pair of door bodies (2, 3); a pair of spherical bearings (6) for a lock gate door for rotatably supporting lower corner portions (4) of the door bodies (2, 3), respectively; and a pair of supporting portions (7) for rotatably supporting upper corner portions (5) of the door bodies (2, 3), respectively. The spherical bearing (6) includes a convex curved body (22) having a spherical surface (21) and a concave curved seat (24) having a toroidal curved surface (23) which slidably contacts the convex curved body (22), and is disposed on a downstream (16) side of a waterway (9) with respect to the supporting portion (7) in such a manner as to incline a rotational axis (C).
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 15, 2011
    Assignee: Oiles Corporation
    Inventors: Hiroshi Suda, Maki Hirayama, Vernon Harold Bryant
  • Shaft coupling mechanism for electric power steering apparatus
    Patent number: 7883423
    Abstract: A shaft coupling mechanism for an electric power steering apparatus includes a coupling base body coupled to a rotating shaft; a coupling base body coupled to a steering shaft serving as a rotating shaft; and a rotation transmitting member which is disposed between the both coupling base bodies and transmits the rotation of the coupling base body in a direction about the axis, i.e., in an R direction, to the coupling base body as rotation in the R direction.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: February 8, 2011
    Assignee: Oiles Corporation
    Inventors: Shuichi Kubota, Takashi Horiguchi, Katsunori Saito, Toshio Iida, Yoshifumi Obata
  • Heat-resistant exfoliated graphite sheet
    Patent number: 7867615
    Abstract: A method of manufacturing a heat-resistant expanded graphite sheet is characterized in that after an acid-treated graphite material obtained by treating a graphite material with a strong acid is compounded with a powder of an organic phosphorus compound and is agitated and mixed uniformly to obtain a mixture, this mixture is subjected to heating treatment for 1 to 10 seconds at temperatures of 950 to 1200° C. to produce cracked gas, that gaps between graphite layers are expanded by its gas pressure to obtain expanded graphite particles having an expansion rate of 200 to 300 times, and that these expanded graphite particles are subjected to pressure molding.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: January 11, 2011
    Assignee: Oiles Corporation
    Inventors: Shuichi Kubota, Kouhei Kurose
  • Damper and automobile seat having the damper
    Patent number: 7866451
    Abstract: A damper (1) has silicone-based unvulcanized rubber (4) interposed between a housing (2) and a shaft (3) which are disposed in such a manner as to be relatively rotatable about an axis (A) in (R) directions with respect to each other, and rotational energy between the housing (2) and the shaft (3) is absorbed through the deformation of the silicone-based unvulcanized rubber (4).
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 11, 2011
    Assignee: Oiles Corporation
    Inventors: Masamitsu Kojima, Atsushi Arai, Takeshi Yamaguchi, Yoshihiro Harada
  • Seismic isolation device
    Patent number: 7856766
    Abstract: To provide a seismic isolation device, even if a relative height between friction plates, which are laminated in a hollow part of a laminated rubber body, and the laminated rubber body changes at a deformation of the laminated rubber body, which prevents allophone, vibration and shock from inside of the seismic isolation device (laminated rubber body), resulting superiority in durability, safety, and amenity.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: December 28, 2010
    Assignee: Oiles Corporation
    Inventors: Yukinori Takenoshita, Yukihiro Hosono
  • Mating member and a sliding member
    Publication number: 20100298179
    Abstract: A resin composition for sliding members which comprises 1 to 10 wt. % hydrocarbon wax, 0.1 to 3 wt. % at least one member selected from the group consisting of phosphates, sulfates, and carbonates, 1 to 20 wt. % phenoxy resin, 0.1 to 5 wt. % compatibilizing agent, and a polybutylene terephthalate resin as the remainder; and a sliding member obtained by molding the resin composition. The resin composition for sliding members and the sliding member obtained by molding the resin composition have excellent frictional and wearing properties even when a soft metal, e.g., an aluminum alloy, is used as a mating material.
    Type: Application
    Filed: August 2, 2010
    Publication date: November 25, 2010
    Applicant: OILES CORPORATION
    Inventor: Kazuo Hirai
  • Rack-and-pinion type steering apparatus
    Patent number: 7815204
    Abstract: A rack-and-pinion type steering apparatus 1 includes a housing 3 having a cylindrical holding hole 2 in its interior; a pinion 6 which is disposed in the housing 3 rotatably in a direction R about an axis O by means of bearings 4 and 5; a rack bar 8 which has rack teeth 7 meshing with the pinion 6 and is movable in a direction A; a rack guide 9 which is disposed in the holding hole 2 within the housing 3 movably in a direction C, and which guides and supports the rack bar 8 movably in the direction A; and a coil spring 10 for resiliently pressing the rack teeth 7 of the rack bar 8 against the pinion 6 by means of the rack guide 9.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: October 19, 2010
    Assignee: Oiles Corporation
    Inventors: Hidetoshi Kaida, Koichi Inagaki
  • Bush bearing and rack-and-pinion type steering apparatus for automobile using the same
    Patent number: 7798504
    Abstract: A bush bearing includes a synthetic resin-made bush having a circumferential groove on its outer peripheral surface; an endless annular elastic member fitted in the circumferential groove of the bush; and a positioning structure for determining the position of the bush in a B direction with respect to an inner peripheral surface of a gear housing.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: September 21, 2010
    Assignees: JTEKT Corporation, OILES Corporation
    Inventors: Masahiko Hirose, Masaaki Hashimoto, Yoshihide Ohara, Takahiro Tanaka, Hidetoshi Kaida, Masao Shimura