Patents Assigned to Oiles Industries Co., Ltd.
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Patent number: 6451744Abstract: A bushing device includes a spindle, a sleeve slidably engaged on the spindle, and a lubricating collar disposed on the inner peripheral portion of the sleeve for slidably engaging onto the spindle and for lubricating the sliding movement between the sleeve and the spindle. The lubricating collar may be made of nylon powder, sulfurous tungsten, and calcium fluoride, and may be directly secured onto the inner peripheral portion of the sleeve with such as a molding or heating process, without additional adhering process or without additional adhesive materials.Type: GrantFiled: June 8, 2001Date of Patent: September 17, 2002Assignee: Taiwan Oiles Industry Co., Ltd.Inventor: Yung Chung Chang
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Patent number: 4969752Abstract: A thrust bearing for use with an automobile thrust-strut type suspension comprises a lower casing made of resin, an upper casing made of resin, and a bearing piece made of resin. The bearing piece is disposed rotatably within the upper and lower casings upon snap-fitting a hook portion of an annular suspended portion of the upper casing with an engaging portion of an annular protruded portion of the lower casing. The thrust bearing is so adapted that two annular inner labyrinth portions and two annular outer labyrinth portions are respectively formed at inner and outer peripheral portions of the thrust bearing to thereby prevent sufficiently dust from intruding into a sliding surface of the bearing piece.Type: GrantFiled: June 6, 1989Date of Patent: November 13, 1990Assignee: Oiles Industry Co., Ltd.Inventors: Shuichi Kubota, Hiroto Kamimura, Hiroshi Suda
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Patent number: 4948869Abstract: A molded article of poly (m-phenylene isophthalamide), which shows a bending strength of higher than 13 kg/mm.sup.2, a density of 1.29 to 1.33 g/cm.sup.3 and a Rockwell hardness of not less than M 120 and has an excellent electric insulation and chemical resistance even at a high temperature and a process for producing the same.Type: GrantFiled: February 22, 1988Date of Patent: August 14, 1990Assignee: Oiles Industry Co., Ltd.Inventors: Hiroyuki Ogoe, Masami Kinoshita
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Patent number: 4854745Abstract: A thrust bearing made of synthetic resin assembled into a strut-thrust type suspension for use in four wheel cars, comprising a casing made of synthetic resin and a bearing body made of synthetic resin, the bearing body being fitted rotatably to the casing by snap-fitting a hook portion of a suspended portion with an engaging portion of a protruded portion, the suspended portion being formed integrally with an outer circumferential edge of the casing, the protruded portion being formed integrally with an outer circumferential edge of the bearing body.Type: GrantFiled: August 25, 1987Date of Patent: August 8, 1989Assignee: Oiles Industry Co., Ltd.Inventors: Hiroto Kamimura, Shuichi Kubota, Masaru Iwakura
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Patent number: 4805359Abstract: A method of applying a floor vibration-damping work and a floor vibration-damping device supporting horizontally displaceably respective supports points of the floor structure on a fixed floor and supporting the other respective points of said floor structure on the fixed floor with a position restoring function relative to the horizontal displacement, as well as a triggering function and a damping function during said displacement.Type: GrantFiled: September 21, 1987Date of Patent: February 21, 1989Assignees: Takenaka Komuten Co., Ltd., Oiles Industry Co., Ltd.Inventors: Hiraku Miyake, Tadahiro Yano, Yoshio Tanno, Yutaka Hayamizu, Satoru Aizawa, Masahiko Higashino, Ikuo Shimoda
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Patent number: 4731966Abstract: A vibration energy absorber device includes a first fixing member fixed to a building bottom wall, a second fixing member fixed to a building foundation, a lead elastoplastic member having elasticity, both ends of the elastoplastic member being firmly coupled to the corresponding fixing members, and reinforcing members embedded in the elastoplastic member. The reinforcing members include a plurality of first members of a metal (e.g., iron) having a higher tensile strength than that of the elastoplastic member. The first members are wire rods extending from one end to the other end of the elastoplatic member, and are disposed in the elastoplastic member at equal angular intervals.Type: GrantFiled: June 10, 1986Date of Patent: March 22, 1988Assignees: Takafumi Fujita, Kabushiki Kaisha Toshiba, Oiles Industry Co., Ltd.Inventors: Takafumi Fujita, Satoshi Fujita, Shigeru Fujimoto, Noboru Narikawa, Chiaki Tsuruya
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Patent number: 4720349Abstract: Disclosed herein is a high temperature-resistant and abrasion-resistant sliding member of graphite-metal borides showing a friction coefficient of 0.01 to 0.09 and a specific amount of abrasion of 1.0 to 4.0.times.10.sup.-8 mm.sup.2 /kg under the measuring conditions of a load of 20 kg/cm.sup.2 and a sliding velocity of 5 m/min at an atmosphere temperature of 300.degree. C., a bending strength of 230 to 900 kg.f/cm.sup.2 and a Shore hardness of 28 to 45, produced by sintering (a) 70 to 93% by weight of amorphous carbon powder, (b) 5 to 20% by weight of at least one boride of a metal of IVa group, Va group of VIa group of the periodic table and (c) 2 to 10% by weight of powdery natural graphite, powdery Kish graphite or a mixture thereof.Type: GrantFiled: November 4, 1985Date of Patent: January 19, 1988Assignees: The Agency of Industrial Science and Technology, Oiles Industry Co. Ltd.Inventors: Kazuo Kobayashi, Kenji Miyazaki, Tsuyoshi Hagio, Ichitaro Ogawa, Hisayoshi Yoshida, Kazutsugu Kashima, Takashi Tada, Youichirou Hayashi, Wataru Abe
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Patent number: 4660401Abstract: An useful method of producing a lot of bearings in the form of a press worked bush is initiated with production of blanks having four corner edges chamfered. In the notch forming and cutting die section comprising upper and lower die halves a strip of metallic material that is called hoop is pressed stepwise to form a plurality of V-shaped notches of which depth increases stepwise toward the outlet of the die section. On completion of forming of notches the hoop is cut off at the center of the last V-shaped notch with the aid of a pair of cutting tools. The die assembly usable for carrying out the method includes an U-bending die section and a circle bending die section which are located in series.Type: GrantFiled: April 7, 1986Date of Patent: April 28, 1987Assignee: Oiles Industry Co., Ltd.Inventors: Masayuki Kohama, Tatsuro Wakabayashi, Koichi Tsunoda
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Patent number: 4648224Abstract: A tendon for prestressed concrete wherein inorganic particles are coated on an outer surface of a rod made of fiber reinforced plastic through a plastic adhesive layer. The inorganic particles are formed with minute rugged surface portions on the outer surface of the tendon for prestressed concrete, the rugged surface portions being firmly adhered to concrete. The inorganic particles are coated on the whole outer surface of the tendon for prestressed concrete, on the fixed portions at both ends, or on the fixed portions at both ends and on a portion subjected to the maximum bending moment.Type: GrantFiled: March 15, 1985Date of Patent: March 10, 1987Assignees: Japanese National Railways, Oiles Industry Co., Ltd.Inventors: Toshiyuki Kitta, Hiroshi Tada, Keizo Ishikawa
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Patent number: 4638538Abstract: A bearing is manufactured by applying an axial pressing force to a cylindrical wound bush and thereby forming a notch-free flange at one end of the bush which is tapered previously. The flange is formed through a kind of plastic flow induced in the tapered end by the force.Type: GrantFiled: April 25, 1984Date of Patent: January 27, 1987Assignee: Oiles Industry Co., Ltd.Inventors: Masayuki Kohama, Tatsuro Wakabayashi, Kouichi Tsunoda
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Patent number: 4637884Abstract: Disclosed herein is a high temperature-resistant and abrasion-resistant sliding member of graphite-boron carbides showing the friction coefficient of 0.01 to 0.13 and the specific abrasion amount of 10.sup.-7 to 10.sup.-9 mm.sup.2 /kg under the measuring conditions of the load of 20 kg/cm.sup.2 and the sliding velocity of 5 m/min at a temperature of 300.degree. C., the bending strength of 300 to 1600 kg.f/cm.sup.2 and the Shore hardness of from 45 to 60, obtained by mixing and stirring from 65 to 95% by weight of powdery carbon of an average particle size of 10 to 150 .mu.m and from 5 to 35% by weight of powdery boron carbide of an average particle size of 0.5 to 2.5 .mu.m until the powdery boron carbide is uniformly dispersed in the powdery carbon, and sintering the thus formed mixture at a temperature of 2020.degree. C. or more and less than the transition point at which the structure of carbon and boron carbide in the thus formed mixture is remarkably changed, under a pressure of 100-250 kg/cm.sup.2.Type: GrantFiled: July 17, 1985Date of Patent: January 20, 1987Assignees: Agency of Industrial Science and Technology, Oiles Industry Co., LTDInventors: Kenji Miyazaki, Tsuyoshi Hagio, Ichitaro Ogawa, Hisayoshi Yoshida, Kazuo Kobayashi, Kazutsugu Kashima, Takashi Tada, Yoichiro Hayashi, Wataru Abe
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Patent number: 4577443Abstract: In a prestressed concrete structure executed by posttensioning method, a metallic sheath having an inner peripheral surface thereof in sliding contact with a tendon coated with a solid lubricating coating including polytetrafluoroethylene (PTFE).By the use of this metallic sheath, the sliding frictional resistance produced between the metallic sheath and tendon when the tendon is subjected to tensioning operation is considerably decreased to increase the prestressing force introduced into the structure accordingly.The solid lubricating coating is excellent in flexibility and contact properties, and good characteristics of coating are imparted to the sheath.Type: GrantFiled: November 12, 1982Date of Patent: March 25, 1986Assignee: Oiles Industry Co., Ltd.Inventors: Toshiyuki Kitta, Wataru Abe, Tadaaki Takase
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Patent number: 4559249Abstract: A sliding member is provided which comprises a base body made of a firmly entangled and collapsed metal fine wire, with the voids formed between the metal fine wires constituting the metal mesh being filled compactly with a heat resistant material, the sliding surface of the base body being formed into a smooth surface with either a lubricant that fills a number of small holes formed in the heat resistant material as well as covering the surface thereof or the lubricant and the metal fine wires being exposed.Type: GrantFiled: October 20, 1983Date of Patent: December 17, 1985Assignees: Honda Giken Kogyo Kabushiki Kaisha, Oiles Industry Co., Ltd.Inventors: Hideto Arigaya, Yoshihiro Katsui, Kikuo Sumiyoshi, Eiji Sato, Kingo Miyasaka
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Patent number: 4559248Abstract: A sliding member is disclosed wherein a sheet-like heat resistant material comprising expanded graphite, mica, etc. singularly or in combination, and a reinforcing material comprising either a combination of a mesh made of metal fine wires with a mesh made by weaving or knitting metal fine wires and fluoroplastic yarns together, or a mesh made by weaving knitting metal fine wires and fluoroplastic yarns together are integrally shaped so that at least on the sliding surface the metal fine wires and the fluoroplastic yarns are exposed, both constituting the reinforcing material, and the heat resistant material held by the metal fine wires and filling the meshes of the mesh as well as the voids formed between the metal fine wires in a mutually intermingled state, exhibiting a smooth surface.Type: GrantFiled: October 26, 1983Date of Patent: December 17, 1985Assignee: Oiles Industry Co., Ltd.Inventors: Kikuo Sumiyoshi, Kingo Miyasaka
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Patent number: 4557087Abstract: A metallic sheath for a posttensioning method wherein an outer peripheral surface or outer and inner peripheral surfaces thereof is (or are) coated with phosphate layer (or layers) and plastic resin layer (or layers) thereupon and preferably further coated with a solid lubricating layer upon the inner peripheral surface of the sheath.The phosphate layer of the outer peripheral surface protect the metallic sheath from corrosion by negative ion within concrete, while, on the other hand, that of the inner peripheral surface prevents the electrochemical corrosion between the inner peripheral surface of the sheath and tendon.Moreover, if a solid lubricating, layer is provided at the inner peripheral surface of the sheath, the sliding friction between the metallic sheath and tendon can be decreased so that prestressed force can be increased as much.Type: GrantFiled: September 1, 1983Date of Patent: December 10, 1985Assignees: Japanese National Railways, Oiles Industry Co., Ltd.Inventors: Toshiyuki Kitta, Wataru Abe
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Patent number: 4551393Abstract: A heat-resistant shift member is disclosed which comprises a fundamental body having substantially a desired configuration and formed of one or more of compressed heat-resistant materials such as expanded graphite with entangled wires being firmly embedded therein, and a shifting surface layer member integrally covering the shifting surface of the fundamental body which is formed of one or more of compressed other heat-resistant materials, such as asbestos as well as one or more of powdered solid lubricant compounds such as metallic sulphide with entangled other metal wires made of copper alloy being firmly embedded therein, whereby both of the metal wires are also partially entangled with each other. There is also disclosed a method for manufacturing the same.Type: GrantFiled: August 11, 1983Date of Patent: November 5, 1985Assignee: Oiles Industry Co., Ltd.Inventors: Kikuo Sumiyoshi, Eiji Sato, Kazuo Hirai, Kingo Miyasaka, Masayoshi Izumi
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Patent number: 4547434Abstract: A heat-resistant shift member is disclosed which comprises (i) a fundamental body having substantially a desired configuration and formed of one or more of compressed heat-resistant materials such as expanded graphite with entangled wires being firmly embedded therein, and (ii) a shifting surface layer member integrally covering the shifting surface of the fundamental body which is formed of other compressed sheet-like heat-resistant materials such as asbestos, a heat-resistant sheet material made of fibers of asbestos, etc.Type: GrantFiled: September 4, 1984Date of Patent: October 15, 1985Assignee: Oiles Industry Co., Ltd.Inventors: Kikuo Sumiyoshi, Eiji Sato, Masamitsu Kojima, Masayoshi Izumi, Kingo Miyasaka
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Patent number: 4534535Abstract: A fixed base is formed at its upper surface with a recess portion, and a bottom surface of said recess portion is normally formed into a plane. A movable plate is disposed in the recess portion of said fixed base with a moving region left therein. Spacers are projectingly embedded in the lower surface of said movable plate, and a gap is formed between the bottom surface of the recess portion of the fixed base and the lower surface of the movable plate, said gap being filled with a viscous material. A pipe is disposed on the movable plate through a support base. The vibration of the pipe is transmitted to the movable plate to produce a relative motion between two surfaces, one being the lower surface of the movable plate and the other being the bottom surface of the recess portion of the fixed base. The viscous shearing resistance of the viscous material resulting from said motion displays an excellent vibration-absorbing action.Type: GrantFiled: September 29, 1982Date of Patent: August 13, 1985Assignees: JGC Corporation, Oiles Industry Co., Ltd.Inventors: Katsutoshi Maeda, Ikuo Shimoda
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Patent number: 4505987Abstract: A sliding member highly improved with lubricating performance, wear resistant property and strength has a thin steel sheet or plate and sintered metal layer deposited on the steel sheet, wherein the sintered metal layer, comprises copper as a main component incorporated with a certain amount of tin, nickel, phosphorus, graphite and, optionally, with iron, and a sliding member exhibiting excellent lubricating performance, wear resistant property and strength even under impact and heavy loads includes a thick steel sheet or plate with which thin steel sheet of the above-mentioned sliding member is integrally joined.Type: GrantFiled: November 10, 1981Date of Patent: March 19, 1985Assignees: Oiles Industry Co., Ltd., Mitsuya Seiko Co. Ltd.Inventors: Shinji Yamada, Saburo Hanafusa
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Patent number: 4259759Abstract: A concrete bridge girder support structure for use in a cantilever erection method is disclosed. The support structure comprises an upper shoe for use as a fixture to the girder through a sole plate fixed to the girder at a predetermined position, a lower shoe fixed on a pier and abutment, a movable part(s) disposed between the upper and lower shoes, and a movable plate placed for bridge-axial movement relative to the upper shoe. A concrete bridge girder erection method using such a support structure is also disclosed. The girder having the sole plate fixed thereto at the predetermined position is carried on the movable plate and continuously advanced along the upper shoe up to a predetermined erection position with bridge-axial movement of the movable plate. At the erection position, the sole plate is integrally fixed to the upper shoe of the support structure.Type: GrantFiled: February 15, 1979Date of Patent: April 7, 1981Assignee: Oiles Industry Co. Ltd.Inventor: Hiroshi Tada