Patents by Inventor Kazuhisa Shigeoka
Kazuhisa Shigeoka 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).
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Patent number: 9839962Abstract: An outer member and an inner member constituting a wheel bearing device are assembled and the brake rotor is fixed to the hub ring of the inner member. In this state, the pad slide surfaces of the brake rotor are lathed with the reference provided by a wheel pilot end surface. Alternatively, the wheel pilot end surface of the hub ring by chucking the knuckle pilot of the outer member with the wheel bearing device put in its assembled state, and the pad slide surfaces of the brake rotor are lathed with the reference provided by the wheel pilot end surface.Type: GrantFiled: November 17, 2014Date of Patent: December 12, 2017Assignee: NTN CORPORATIONInventors: Kiyotake Shibata, Kazunari Yamamoto, Kazuhisa Shigeoka, Taku Nishiki, Kazuo Komori, Takao Maeda
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Publication number: 20170144483Abstract: A wheel bearing apparatus has an outer member, an inner member and double row rolling elements contained between outer raceway surfaces and inner raceway surfaces, respectively, of the outer member and the inner member. A vibration damping mechanism is mounted on a portion of the outer member or the inner member except at portions engaging with mating components.Type: ApplicationFiled: February 4, 2017Publication date: May 25, 2017Inventors: Kazuhisa SHIGEOKA, Hiroto SUMA, Kentarou NISHIKAWA, Makoto SEKI
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Publication number: 20170144482Abstract: A wheel bearing apparatus has an outer member, an inner member and double row rolling elements contained between outer raceway surfaces and inner raceway surfaces, respectively, of the outer member and the inner member. A vibration damping mechanism is mounted on a portion of the outer member or the inner member except at portions engaging with mating components.Type: ApplicationFiled: February 4, 2017Publication date: May 25, 2017Inventors: Kazuhisa SHIGEOKA, Hiroto SUMA, Kentarou NISHIKAWA, Makoto SEKI
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Publication number: 20150068040Abstract: An outer member and an inner member constituting a wheel bearing device are assembled and the brake rotor is fixed to the hub ring of the inner member. In this state, the pad slide surfaces of the brake rotor are lathed with the reference provided by a wheel pilot end surface. Alternatively, the wheel pilot end surface of the hub ring by chucking the knuckle pilot of the outer member with the wheel bearing device put in its assembled state, and the pad slide surfaces of the brake rotor are lathed with the reference provided by the wheel pilot end surface.Type: ApplicationFiled: November 17, 2014Publication date: March 12, 2015Applicant: NTN CORPORATIONInventors: Kiyotake SHIBATA, Kazunari YAMAMOTO, Kazuhisa SHIGEOKA, Taku NISHIKI, Kazuo KOMORI, Takao MAEDA
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Patent number: 8914965Abstract: An outer member and an inner member constituting a wheel bearing device are assembled and the brake rotor is fixed to the hub ring of the inner member. In this state, the pad slide surfaces of the brake rotor are lathed with the reference provided by a wheel pilot end surface. Alternatively, the wheel pilot end surface of the hub ring by chucking the knuckle pilot of the outer member with the wheel bearing device put in its assembled state, and the pad slide surfaces of the brake rotor are lathed with the reference provided by the wheel pilot end surface.Type: GrantFiled: February 18, 2011Date of Patent: December 23, 2014Assignee: NTN CorporationInventors: Kiyotake Shibata, Kazunari Yamamoto, Kazuhisa Shigeoka, Taku Nishiki, Kazuo Komori, Takao Maeda
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Patent number: 8777492Abstract: A wheel bearing apparatus of a semi-floating type has a pilot portion 21 on an outer member 20. The pilot portion includes a cylindrical portion 21a and a tapered portion 21b. The tapered portion 21b gradually decreases in diameter from the cylindrical portion 21a to an end surface of the inboard side. A fitting portion 16 of an axle housing 14 corresponds to the shape of the pilot portion 21. An annular groove 22 is formed at the tapered portion 21b of the pilot portion 21. A seal ring 23 is mounted in the annular groove 22. An outer diameter d3 of the seal ring 23, after mounting, is set smaller than an inner diameter d4 of the cylindrical portion 16a of the axle housing 14. The seal ring elastically contacts the axle housing 14. A slight gap of a fitting portion between the outer member 20 and the axle housing 14 is blocked off.Type: GrantFiled: November 15, 2012Date of Patent: July 15, 2014Assignee: NTN CorporationInventors: Kazunari Yamamoto, Kazuhisa Shigeoka
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Patent number: 8449197Abstract: A vehicle wheel bearing apparatus which reduces the weight, size and number of parts and also prevents ingress of rain water or dusts and leakage of differential gear oil has an axle housing supported under a body of a vehicle. A hollow drive shaft is inserted into the axle housing. A wheel bearing is arranged between the drive shaft and an opening of the axle housing and is structured as a unit including a wheel hub and a double row rolling bearing. The wheel bearing includes an inner member with a wheel hub integrally formed with a wheel mounting flange on one end and an axially extending cylindrical portion. At least one inner ring is press-fit onto the cylindrical portion of the wheel hub. The inner ring is formed with at least one of the inner raceway surfaces on its outer circumferential surface. An outer member is arranged around the inner member and formed with double row outer raceway surfaces on its inner circumferential surface opposite to the inner raceway surfaces.Type: GrantFiled: January 12, 2011Date of Patent: May 28, 2013Assignee: NTN CorporationInventors: Hiroshi Kawamura, Kazuhisa Shigeoka, Akira Fujimura, Koji Nishino, Hisashi Ohtuski
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Patent number: 8303190Abstract: A vehicle wheel bearing apparatus has an outer member, an inner member, double row rolling elements, and seals mounted within annular openings formed between the outer member and the inner member. A metal annulus, mounted on the base portion, is press-formed of steel plate. The metal annulus has a cylindrical fitting portion, a curved portion, a disk shaped portion, and an overhang portion. The outer side seal of the seals has a metal core and a sealing member with side lips and a grease lip. The side lips and the grease lip sliding contact the metal annulus. The metal annulus overhang portion opposes the outer member via a slight radial gap and is formed with a flared configuration that gradually expands toward its end at a predetermined slant angle.Type: GrantFiled: November 27, 2009Date of Patent: November 6, 2012Assignee: NTN CorporationInventor: Kazuhisa Shigeoka
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Patent number: 8132967Abstract: A wheel bearing apparatus with an incorporated wheel speed detecting apparatus has an outer member with double row outer raceway surfaces formed on its inner circumferential surface. An inner member includes a wheel hub with an integrally formed wheel mounting flange at one end. A cylindrical portion axially extends from the wheel mounting flange. An inner ring is fit onto the cylindrical portion of the wheel hub. Double row inner raceway surfaces, opposite to the double row outer raceway surfaces, are formed on the outer circumferential surfaces of the wheel hub and inner ring, respectively. Double row rolling elements are arranged between the outer and inner raceway surfaces. An encoder is mounted on the outer circumferential surface of the inner ring. An annular sensor holder is arranged on the end of the outer member opposite to the encoder. A wheel rotation speed detecting sensor is integrally molded with the sensor holder and arranged opposite to the encoder, via a predetermined radial gap.Type: GrantFiled: September 9, 2005Date of Patent: March 13, 2012Assignee: NTN CorporationInventors: Kazuhisa Shigeoka, Syougo Suzuki, Yujiro Ono, Kazuo Komori, Kikuo Fukada
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Patent number: 8047722Abstract: A vehicle wheel bearing apparatus has a substantially cylindrical outer ring formed with double row outer raceway surfaces on its inner circumference and with press fitting surfaces on its outer circumferences of its cylindrical portions. A pair of inner rings is formed with inner raceway surfaces on their outer circumferences. The inner rings cylindrical portions have fitting surfaces on their inner circumferences. The fitting surfaces fit onto a cylindrical portion of a wheel hub. The inner rings are adapted to be arranged so that end faces of the cylindrical portions abut each other. Double row rolling elements are freely rollably arranged between outer and inner raceway surfaces. At least the outer ring of the outer and inner is formed by pressing or rolling from a plate member or a pipe member. The outer ring and the inner rings have cylindrical portions axially extending, respectively, from the outer raceway surfaces and the inner raceway surfaces.Type: GrantFiled: May 6, 2009Date of Patent: November 1, 2011Assignee: NTN CorporationInventors: Kazuhisa Shigeoka, Kazunari Yamamoto, Akira Torii
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Publication number: 20110188792Abstract: A vehicle wheel bearing apparatus which reduces the weight, size and number of parts and also prevents ingress of rain water or dusts and leakage of differential gear oil has an axle housing supported under a body of a vehicle. A hollow drive shaft is inserted into the axle housing. A wheel bearing is arranged between the drive shaft and an opening of the axle housing and is structured as a unit including a wheel hub and a double row rolling bearing. The wheel bearing includes an inner member with a wheel hub integrally formed with a wheel mounting flange on one end and an axially extending cylindrical portion. At least one inner ring is press-fit onto the cylindrical portion of the wheel hub. The inner ring is formed with at least one of the inner raceway surfaces on its outer circumferential surface. An outer member is arranged around the inner member and formed with double row outer raceway surfaces on its inner circumferential surface opposite to the inner raceway surfaces.Type: ApplicationFiled: January 12, 2011Publication date: August 4, 2011Applicant: NTN CorporationInventors: Hiroshi Kawamura, Kazuhisa Shigeoka, Akira Fujimura, Koji Nishino, Hisashi Ohtsuki
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Publication number: 20110146465Abstract: An outer member and an inner member constituting a wheel bearing device are assembled and the brake rotor is fixed to the hub ring of the inner member. In this state, the pad slide surfaces of the brake rotor are lathed with the reference provided by a wheel pilot end surface. Alternatively, the wheel pilot end surface of the hub ring by chucking the knuckle pilot of the outer member with the wheel bearing device put in its assembled state, and the pad slide surfaces of the brake rotor are lathed with the reference provided by the wheel pilot end surface.Type: ApplicationFiled: February 18, 2011Publication date: June 23, 2011Inventors: Kiyotake SHIBATA, Kazunari Yamamoto, Kazuhisa Shigeoka, Taku Nishiki, Kazuo Komori, Takao Maeda
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Patent number: 7913374Abstract: An outer member and an inner member constituting a wheel bearing device are assembled and the brake rotor is fixed to the hub ring of the inner member. In this state, the pad slide surfaces of the brake rotor are lathed with the reference provided by a wheel pilot end surface. Alternatively, the wheel pilot end surface of the hub ring by chucking the knuckle pilot of the outer member with the wheel bearing device put in its assembled state, and the pad slide surfaces of the brake rotor are lathed with the reference provided by the wheel pilot end surface.Type: GrantFiled: July 28, 2006Date of Patent: March 29, 2011Assignee: NTN CorporationInventors: Kiyotake Shibata, Kazunari Yamamoto, Kazuhisa Shigeoka, Taku Nishiki, Kazuo Komori, Takao Maeda
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Publication number: 20100129018Abstract: A vehicle wheel bearing apparatus has an outer member, an inner member, double row rolling elements, and seals mounted within annular openings formed between the outer member and the inner member. A metal annulus, mounted on the base portion, is press-formed of steel plate. The metal annulus has a cylindrical fitting portion, a curved portion, a disk shaped portion, and an overhang portion. The outer side seal of the seals has a metal core and a sealing member with side lips and a grease lip. The side lips and the grease lip sliding contact the metal annulus. The metal annulus overhang portion opposes the outer member via a slight radial gap and is formed with a flared configuration that gradually expands toward its end at a predetermined slant angle.Type: ApplicationFiled: November 27, 2009Publication date: May 27, 2010Applicant: NTN CorporationInventor: Kazuhisa Shigeoka
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Patent number: 7677808Abstract: A bearing apparatus for a driving wheel of a vehicle has an outer member (2), inner member (5, 6), rolling elements (4), outer joint member (61) and a cover (11, 67). The outer member (2) is formed with double row outer raceway surfaces (2a) on its inner peripheral surface The inner member (5, 6) include a wheel hub (2) with an integrally formed wheel mounting flange (7) at one end and an axially extending cylindrical portion (5b, 13b) of a smaller diameter. At least one inner ring (6) is press fit onto the cylindrical portion (5b, 13b). The inner member (5, 6) is formed with double row inner raceway surfaces (5a, 6a) arranged opposite to the double row outer raceway surfaces (2a). The double row rolling elements (4) are freely rollably contained between the outer and inner raceway surfaces (2a and 5a, 6a).Type: GrantFiled: April 21, 2006Date of Patent: March 16, 2010Assignee: NTN CorporationInventors: Kazuhisa Shigeoka, Hiroshi Kawamura
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Patent number: 7618194Abstract: A wheel bearing apparatus incorporating a wheel speed detecting apparatus has an outer member (4) with an integrally formed body mounting flange (4b) and double row outer raceway surfaces (4a) formed on the inner circumferential surface of the outer member (4). An inner member (3) includes a wheel hub (1) with an integrally formed wheel mounting flange (7) at one end. A cylindrical portion (1b) axially extends from the wheel mounting flange (7). An inner ring (6) is fitted on the cylindrical portion (1b) of the wheel hub (1). Double row inner raceway surfaces (1a, 6a) are formed on the outer circumferential surfaces of the wheel hub (1) and inner ring (6), respectively opposite to the double row outer raceway surfaces (4a). Double row rolling elements (5) are rotatably arranged between the outer and inner raceway surfaces (4a; 1a, 6a). An encoder (19) is mounted on the outer circumferential surface of the inner ring (6).Type: GrantFiled: April 7, 2005Date of Patent: November 17, 2009Assignee: NTN CorporationInventors: Hisashi Ohtsuki, Kazuhisa Shigeoka, Tomomi Ishikawa
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Publication number: 20090274405Abstract: A vehicle wheel bearing apparatus has a substantially cylindrical outer ring formed with double row outer raceway surfaces on its inner circumference and with press fitting surfaces on its outer circumferences of its cylindrical portions. A pair of inner rings is formed with inner raceway surfaces on their outer circumferences. The inner rings cylindrical portions have fitting surfaces on their inner circumferences. The fitting surfaces fit onto a cylindrical portion of a wheel hub. The inner rings are adapted to be arranged so that end faces of the cylindrical portions abut each other. Double row rolling elements are freely rollably arranged between outer and inner raceway surfaces. At least the outer ring of the outer and inner is formed by pressing or rolling from a plate member or a pipe member. The outer ring and the inner rings have cylindrical portions axially extending, respectively, from the outer raceway surfaces and the inner raceway surfaces.Type: ApplicationFiled: May 6, 2009Publication date: November 5, 2009Applicant: NTN CorporationInventors: Kazuhisa Shigeoka, Kazunari Yamamoto, Akira Torii
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Patent number: 7497631Abstract: A vehicle wheel bearing apparatus has an outer member with an integrally formed mounting body mounting flange and double row outer raceway surfaces formed on its inner circumferential surface. An inner member includes a wheel hub with an integrally formed wheel mounting flange at one end. One inner raceway surface is formed on the outer circumferential surface of the wheel hub. An inner ring is fit onto a cylindrical portion of the wheel hub. One end of the inner ring abuts a shoulder on the wheel hub. The inner ring is formed with the other inner raceway surface on its outer circumferential surface. Double row rolling elements are freely rollably contained, via a cage, between the inner and outer raceway surfaces, respectively, of the inner and outer members. A corner, between the shoulders of the wheel hub and the cylindrical portion, is defined by a compound curve.Type: GrantFiled: May 10, 2006Date of Patent: March 3, 2009Assignee: NTN CorporationInventor: Kazuhisa Shigeoka
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Patent number: 7445388Abstract: A bearing assembly is proposed which includes a rotational speed detector including a sensor and a sensor holder made of steel. The sensor is adapted to be snap-fitted in the sensor holder. The sensor holder is subjected to cationic electrocoating to improve its corrosion resistance, thereby preventing the sensor from separating from the sensor holder after long use of the bearing assembly. This improves the reliability of the entire bearing assembly.Type: GrantFiled: January 4, 2006Date of Patent: November 4, 2008Assignee: NTN CorporationInventors: Kazuhisa Shigeoka, Katsumi Furukawa
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Patent number: 7374344Abstract: To provide a wheel support bearing assembly designed to avoid an ingress of foreign matter from an area, where a sensor is fitted, into the inside of the bearing assembly. The wheel support bearing assembly includes an outer member (1) adapted to be secured to a vehicle body structure, an inner member (2) adapted to support a vehicle wheel, and circular rows of rolling elements (3) interposed between the outer and inner members (1,2). A sensor cap (13) is provided for closing an inboard end of the outer member (1) and has an insert nut (15) embedded therein. The sensor cap (13) is also provided with a reduced diameter hole (23), in which an elastic sealing member (25) is interposed under interference fit between it and a deep end face of the insert nut (15).Type: GrantFiled: January 9, 2006Date of Patent: May 20, 2008Assignee: NTN CorporationInventors: Kazuhisa Shigeoka, Katsumi Furukawa