Patents Assigned to Kinugawa Rubber Ind. Co., Ltd.
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Publication number: 20030013820Abstract: A sound insulating composite material contains (a) a crosslinked polymer containing 100 parts by weight of an ethylene-propylene rubber, 20-100 parts by weight of a polyethylene, and 100-200 parts by weight of a polypropylene; and (b) an inorganic filler in an amount of 200-500 parts by weight relative to 100 parts by weight of the ethylene-propylene rubber. The crosslinked polymer is prepared by a dynamic crosslinking of the ethylene-propylene rubber with the polyethylene and the polypropylene in the presence of an organic peroxide. The sound insulating composite material can be produced by (a) preparing a mixture containing the ethylene-propylene rubber, the polyethylene, the polypropylene, and the organic peroxide; and (b) kneading the mixture while the mixture is in a melted condition, thereby generating the dynamic crosslinking.Type: ApplicationFiled: March 27, 2002Publication date: January 16, 2003Applicant: KINUGAWA RUBBER IND. CO., LTD.Inventor: Hirotsugu Yamanaka
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Patent number: 6409244Abstract: An automotive window molding attached onto a circumference of a window glass and arranged at a pillar side of a vehicle body, includes an outside glass abutting portion being in contact with an outside surface of the window glass, an outside ornamental head portion arranged outside of the outside glass abutting portion and spaced apart from the outside glass abutting portion so that the outside ornamental head portion and the outside glass abutting portion are opposed to each other, and a connecting wall portion interconnecting the outside ornamental head portion and the outside glass abutting portion. A drip groove is defined by the outside glass abutting portion, the outside ornamental head portion, and the connecting wall portion, so that the drip groove is opened toward inside of the perimeter of the window glass.Type: GrantFiled: December 18, 2000Date of Patent: June 25, 2002Assignees: Kinugawa Rubber Ind., Co., Ltd., Fuji Jukogyo Kabushiki KaishaInventors: Yuuji Nagahashi, Akira Hoshikawa, Takeshi Arai, Yukio Furugori
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Patent number: 6349926Abstract: A liquid-sealed vibration insulator is comprised of a cylindrical elastic member integrally formed with an inner cylinder, first and second rings and an orifice ring located between the first and second rings. An outer cylinder is integrally connected to the elastic member through the first and second rings. A first liquid chamber is formed at a portion between the outer cylinder and the elastic member and between the first ring and the orifice ring, and a second liquid chamber is formed at a portion between the outer cylinder and the elastic member and between the orifice ring and the second ring. The first and second liquid chambers are fluidly communicated through an orifice passage defined by the orifice ring.Type: GrantFiled: December 15, 1999Date of Patent: February 26, 2002Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventor: Masaaki Itoh
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Patent number: 6231117Abstract: A window molding includes an external wall portion covering a peripheral portion of an external major surface of the window glass, an internal wall portion covering a peripheral portion of an internal major surface of the window glass, and a base wall portion covering an end surface of the window glass. The base wall portion connects the external and internal wall portions together, and has a surface that is opposed and inclined to a side wall portion of a panel of the motor vehicle. A lip seals a space defined between the surface of the base wall portion and the side wall portion of the panel. The lip extends from a first location on the base wall portion to the side wall portion of the panel along portions of the molding covering straight edges of the window glass, and from a second location along portions of the molding which covers corners of window glass.Type: GrantFiled: July 30, 1999Date of Patent: May 15, 2001Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventor: Yuuji Nagahashi
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Patent number: 6206557Abstract: A traffic sign for use in a paved road has a housing with an open upper end. A holder is vertically movably received in the housing. A light emitting unit is installed in the holder to move therewith. A transparent plate is mounted on the holder to move therewith. The transparent plate permits a light from the light emitting unit to transmit therethrough. A space is defined between a bottom of the housing and a lower end of the holder to permit the vertical movement of the holder in the housing. An elastic support ring has an inner wall fixed to an outer surface of the holder and an outer wall fixed to an inner surface of the housing. Projections are formed on the elastic support ring. Each projection projects upward beyond the transparent plate. Recesses are provided by the elastic support ring. Each recess is defined between the projections, so that the light from the light emitting unit is viewed through the transparent plate and each of the recesses.Type: GrantFiled: August 13, 1999Date of Patent: March 27, 2001Assignees: Kinugawa Rubber Ind. Co., Ltd., Nippon Liner Co., Ltd.Inventors: Noritoshi Sakuma, Kyohei Marukawa, Kaoru Ishida, Takao Suzuki
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Patent number: 6174477Abstract: A method for producing a window molding for an automotive vehicle having an upper molding including a leg portion, a glass limiting lip projecting from the leg portion, a head portion connected to the leg portion and the glass limiting lip and a side molding which includes the leg portion and the glass limiting lip, a strut portion connected to the leg portion, and a head portion connected to the strut portion; where a length of the strut portion and an angle between the head portion and the glass limiting lip are gradually increased from an end of said side molding connected to said upper molding to the other end is disclosed.Type: GrantFiled: February 22, 1999Date of Patent: January 16, 2001Assignees: Kinugawa Rubber Ind. Co., Ltd., Tokiwa Chemical Industry Co., Ltd.Inventors: Yuuji Nagahashi, Sumito Ichinohe, Hiroyoshi Imura, Takashi Hirokawa
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Patent number: 6106047Abstract: A window molding installed at a clearance between a front window and a window frame of an automotive vehicle has an upper molding and a side molding continuous in the longitudinal direction. The side molding has a strut portion which is formed between a head portion for covering the clearance and a leg portion inserted to the clearance so that a length of the strut portion and an angle between the head portion and a glass limiting lip connected to the leg portion are gradually increased from an end of the side molding connected to the upper molding to the other end. The window molding is produced by extrusion molding by means of an apparatus using a fixed die head and a movable die head.Type: GrantFiled: August 19, 1997Date of Patent: August 22, 2000Assignees: Kinugawa Rubber Ind. Co., Ltd., Tokiwa Chemical Industry Co., Ltd.Inventors: Yuuji Nagahashi, Sumito Ichinohe, Hiroyoshi Imura, Takashi Hirokawa
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Patent number: 6084034Abstract: A urethane-resin based coating for reducing friction includes a urethane paint and a first powder. The coating is to be applied to a shaped article which is to be subjected to a heat treatment at a certain temperature after the application of the coating to the shaped article. The first powder has a melting point lower than the certain temperature and a solubility parameter which is smaller than or larger than that of the urethane paint by at least 0.5. The coating optionally further includes a second powder which has a melting point higher than the certain temperature. The coating provides the shaped article with low friction, irrespective of the coating film's thickness.Type: GrantFiled: March 6, 1998Date of Patent: July 4, 2000Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventors: Masayoshi Miyama, Naoaki Hoshino
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Patent number: 6035899Abstract: The invention relates to a fiber-reinforced rubber hose having an inner tubular portion made of a first rubber; an outer tubular portion which is made of a second rubber and surrounds the inner tubular portion; and a reinforcing layer interposed between the inner and outer tubular portions. At least one of the first and second rubbers is a carboxyl-containing acrylic elastomer prepared by vulcanizing a carboxyl-containing acrylic copolymer. The reinforcing layer is prepared from polyester fibers containing terminal carboxyl groups which are in an amount of up to 20 equivalents per metric ton of the polyester fibers. The rubber hose can be produced with a relatively low cost due to the use of polyester fibers. Furthermore, the rubber hose is superior in metal contact resistance and calcium chloride resistance, in addition to satisfactory heat resistance, oil resistance, pressure resistance and sealing capability.Type: GrantFiled: January 23, 1998Date of Patent: March 14, 2000Assignees: Kinugawa Rubber Ind. Co., Ltd., Nissan Motor Co., Ltd.Inventors: Hiroshi Ohkoshi, Takashi Suzuki, Tatsumi Onishi, Hiroshi Okuyama, Shin Kusama
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Patent number: 5964062Abstract: A spacer for a sealing member, such as a weather-strip, of an opening/closing member of automotive vehicle to prevent collapse of a hollow lip portion of the sealing member at corner portions thereof. The spacer may be formed cylindrically, or so as to conform to a shape of an inner surface of the hollow lip. In addition, an out wall of the spacer is segmented and formed with a bellows, or accordion-like configuration such that when the spacer, or any portion thereof, is contracted due to bending, or the like, affected segments or portions thereof at the spacer wall contract and are aligned so as to provide a substantially rigid, contiguous surface at the contraction.Type: GrantFiled: May 9, 1997Date of Patent: October 12, 1999Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventors: Hiroshi Jinma, Toshimitsu Shimizu, Toshikatsu Haraikawa
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Patent number: 5941123Abstract: A noise insulation arrangement reduces transmission of noise through an opening of a partition having a margin with a perimeter defining the opening. A shift lever assembly extends through the opening. This arrangement uses a noise insulator including a first noise barrier portion disposed in the opening adjacent to the perimeter of the partition and a first resilient portion extending between the first noise barrier and the shift lever assembly. A insulator cover is connected between the shift lever of the shift lever assembly and the margin of the partition. The cover includes a second noise barrier portion disposed adjacent to the perimeter and a second flexible portion. The second resilient portion is in the form of a bellows extending over the first resilient portion of the noise insulator.Type: GrantFiled: March 13, 1998Date of Patent: August 24, 1999Assignee: Kinugawa Rubber Ind. Co., LtdInventor: Youichi Numakami
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Patent number: 5887844Abstract: A fluid-sealed vibration isolating device comprises primary and secondary damping-fluid chambers, a fluid-flow restrictive plate or diaphragm for dividing the primary damping-fluid chamber into first and second main chambers and being responsive to an amplitude of input vibration for restricting a flow of damping fluid between the first and second main chambers when the amplitude of input vibration is greater than a predetermined amplitude, the secondary damping-fluid chamber including first and second sub-chambers, and first, second and third orifice passageways for defining respective flow restrictive passages between the first main chamber and the first sub-chamber, between the second main chamber and the first sub-chamber, and between the second main chamber and the second sub-chamber.Type: GrantFiled: July 30, 1997Date of Patent: March 30, 1999Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventors: Yoshinari Fujiwara, Shingo Hatakeyama
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Patent number: 5844051Abstract: The invention relates to a coating composition intended to be applied to a surface of a high-molecular-weight elastic body. The coating composition includes 100 parts by weight of a mixture of a polyisocyanate and a compound containing therein at least two active hydrogen atoms which are capable of reacting with the polyisocyanate to prepare a polyurethane, and 0.5-100 parts by weight of a diorganopolysiloxane having an average degree of polymerization from 6,000 to 10,000. The coating composition provides a coating film which is superior in durability. Furthermore, this coating film does not generate an uncomfortable noise even when a glass plate wet with water slides on the coating film.Type: GrantFiled: April 25, 1996Date of Patent: December 1, 1998Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventors: Tetsuo Onzuka, Yoshihiro Itoh
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Patent number: 5814352Abstract: For extruding an automotive weather strip which includes an elongate major portion and an elongate lip portion which is integrally formed on the major portion, an extruding device is provided, which comprises a material extruder for feeding a first material for the major portion; an additional material extruder for feeding a second material for the lip portion; a fixed shaping die formed with a main extruding opening from which the first material from the material extruder is extruded for formation of the major portion; a movable shaping die formed with an auxiliary extruding opening from which the second material from the additional material extruder is extruded for formation of the lip portion. The movable shaping die is movable relative to the fixed shaping die. The movable shaping die is located in front of the fixed shaping die and spaced from the same by a given distance.Type: GrantFiled: April 22, 1997Date of Patent: September 29, 1998Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventors: Hiroyoshi Imura, Sumito Ichinohe
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Patent number: 5763011Abstract: A urethane-resin based coating for reducing friction includes a urethane paint and a first powder. The coating is to be applied to a shaped article which is to be subjected to a heat treatment at a certain temperature after the application of the coating to the shaped article. The first powder has a melting point lower than the certain temperature and a solubility parameter which is smaller than or larger than that of the urethane paint by at least 0.5. The coating optionally further includes a second powder which has a melting point higher than the certain temperature. The coating provides the shaped article with low friction, irrespective of the coating film's thickness.Type: GrantFiled: January 23, 1996Date of Patent: June 9, 1998Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventors: Masayoshi Miyama, Naoaki Hoshino
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Patent number: 5749261Abstract: A noise insulation arrangement reduces transmission of noise through an opening of a partition having a margin with a perimeter defining the opening. A shift lever assembly extends through the opening. This arrangement uses a noise insulator including a first noise barrier portion disposed in the opening adjacent to the perimeter of the partition and a first resilient portion extending between the first noise barrier and the shift lever assembly. A insulator cover is connected between the shift lever of the shift lever assembly and the margin of the partition. The cover includes a second noise barrier portion disposed adjacent to the perimeter and a second flexible portion. The second resilient portion is in the form of a bellows extending over the first resilient portion of the noise insulator.Type: GrantFiled: January 31, 1996Date of Patent: May 12, 1998Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventor: Youichi Numakami
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Patent number: 5732998Abstract: The present invention provides a drain clip for use in combination with a weather strip for an automobile to drain water leaked into the weather strip attached to the flange of the body of the automobile, capable of being securely attached to a weather strip at a predetermined position on the weather strip so that the drain clip may not fall off the weather strip or may not be dislocated, and of improving the efficiency of the work for attaching the weather strip to the body of an automobile. The drain clip has a base part having an L-shaped cross section and provided in its outer surface with a drain groove formed so as to extend from one to the other end thereof. One of the legs of the drain clip is inserted between the flange of the body of the automobile and the weather strip put on the flange to form a drain passage connecting the internal space of the weather strip and the external environment.Type: GrantFiled: October 25, 1995Date of Patent: March 31, 1998Assignees: Kinugawa Rubber Ind. Co., Ltd., NIFCO, Inc.Inventors: Hiroyuki Otsuka, Yasuo Yamamoto
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Patent number: 5718084Abstract: A glass run installed to a vehicle door is comprised of a horizontal portion, a vertical portion and a corner portion integrally connecting the horizontal and vertical portions. The horizontal portion has an outer lip at which an upper end portion of a door glass is received. The corner portion has a groove which is formed along an extension line of a lower periphery of the outer lip and is defined by a thin wall. Therefore, the corner portion is deformed in the vicinity of the groove so as to absorb tensile force applied to the corner portion when the door glass pushes the lip portion.Type: GrantFiled: September 13, 1996Date of Patent: February 17, 1998Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventor: Takeomi Takamiya
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Patent number: 5692340Abstract: A spacer for a sealing member, such as a weather-strip, of an opening/closing member of automotive vehicle is provided to prevent collapse of a hollow lip portion of the sealing member at corner portions thereof. The spacer may be formed cylindrically, or so as to conform to a shape of an inner surface of the hollow lip. In addition, an out wall of the spacer is segmented and formed with a bellows, or accordion-like configuration such that when the spacer, or any portion thereof, is contracted due to bending, or the like, affected segments or portions thereof at the spacer wall contract and are aligned so as to provide a substantially rigid, contiguous surface at the contraction.Type: GrantFiled: August 29, 1995Date of Patent: December 2, 1997Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventors: Hiroshi Jinma, Toshimitsu Shimizu, Toshikatsu Haraikawa
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Patent number: 5575869Abstract: For producing a vibration insulator for use in a motor vehicle or the like, a unique method is described which comprises (a) producing an inner unit which includes an inner cylindrical member of metal and a compounded rubber block disposed about the inner cylindrical member; (b) applying an adhesive to an inner surface of an outer cylindrical member of FRP, the adhesive being of a type which is cured and hardened when heated; (c) press-fitting the inner unit in the outer cylindrical member; (d) putting an electrode plate around the outer cylindrical member near the inner unit; and (e) applying a high frequency current to the electrode plate to induce a high frequency dielectric heating by which the adhesive and the compounded rubber block are heated, the high frequency current having a frequency lower than 100 MHz.Type: GrantFiled: March 28, 1994Date of Patent: November 19, 1996Assignee: Kinugawa Rubber Ind. Co., Ltd.Inventors: Takashi Fujiwara, Yosuke Iino