Patents by Inventor Ken Furuya
Ken Furuya 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: 7926795Abstract: A front fork comprises a telescopic tube (1, 32) in which a damper cylinder (3) generates a damping force. The damper cylinder (3) comprises a guide sleeve (4) and a free piston (6) having an inner circumference which slides on the outer circumference of the guide sleeve (4) and an outer circumference which slides on the inner circumference of the damper cylinder (3). A lateral through-hole (11) formed in the guide sleeve (4) connects an auxiliary reservoir (R3) formed outside the damper cylinder (3) and an oil reservoir (R2) via a flow path (12) formed in the guide sleeve (4) according to the displacement position of the free piston (6), thereby reducing the number of seal members required to be fitted on the outer circumference of the free piston (6) and enabling the free piston (6) to slide smoothly even when the telescopic tube (1, 32) suffers a bending force.Type: GrantFiled: February 25, 2008Date of Patent: April 19, 2011Assignee: Kayaba Industry Co., Ltd.Inventors: Ken Furuya, Kiyoshi Kubo
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Patent number: 7793766Abstract: The front fork (100) includes a fork main body (3) in which an inner tube (2) is inserted into an outer tube (1) to enable free expansion and contraction, a damper (10) generates a damping force when a rod (5) moves within a cylinder (4) as the fork main body (3) expands and contracts, an air chamber (15) delimited by a free piston (16), which compensates for variation in the internal volume of the cylinder (4) caused by invasion and retreat of the rod (5) into and from the cylinder (4), a pressurizing spring (19) housed in the air chamber (15), which biases the free piston (16) in a direction for enlarging the air chamber (15), and a sub-spring (30) which biases the free piston (16) in a direction for shrinking the air chamber (15) in opposition to the pressurizing spring (19).Type: GrantFiled: October 24, 2007Date of Patent: September 14, 2010Assignee: Kayaba Industry Co., Ltd.Inventor: Ken Furuya
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Patent number: 7793957Abstract: A steering shaft (2) penetrates a head tube (1) fixed to a vehicle body (A) of a motorcycle. The steering shaft (2) is coupled to a front wheel and handlebars of the motorcycle. A linear damper of a double-rod type is enclosed in the steering shaft (2). When the steering shaft (2) rotates with respect to the vehicle body (A), a feed screw (12) engaged with a screw portion (11) on the outer circumference of one of the piston rods (6a, 6b) causes the linear damper to operate. By enclosing the linear damper in the steering shaft (2), a space for disposing the steering damping device can be minimized. The feed screw (12) converts a rotational displacement of the steering shaft (2) into an axial displacement of the piston rods (6a, 6b) such that a bending load does not act on the piston rods (6a, 6b).Type: GrantFiled: June 16, 2008Date of Patent: September 14, 2010Assignee: Kayaba Industry Co., Ltd.Inventor: Ken Furuya
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Publication number: 20090068401Abstract: The present invention relates to an optical biaxially oriented polyester film comprising a polyester comprising a main component and at least one other component which is a third component in a total amount of 2.0 to 10.0 mol %, which polyester film has a film haze of 0 to 3.0%. The said optical biaxially oriented polyester film is excellent in optical properties such as transparency, law haze and optical uniformity, is capable of contributing to quality improvement of optical products and reducing energetic consumption, and does not have any irregularity and defect when using for elements of LCD, PDP, organic EL, projection displays, or the like, and is capable of realizing a high level brightness and providing high quality images.Type: ApplicationFiled: December 9, 2005Publication date: March 12, 2009Applicant: MITSUBISHI PLASTICS , INC.Inventors: Yoshinori Sato, Ken Furuya
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Publication number: 20090000890Abstract: A steering shaft (2) penetrates a head tube (1) fixed to a vehicle body (A) of a motorcycle. The steering shaft (2) is coupled to a front wheel and handlebars of the motorcycle. A linear damper of a double-rod type is enclosed in the steering shaft (2). When the steering shaft (2) rotates with respect to the vehicle body (A), a feed screw (12) engaged with a screw portion (11) on the outer circumference of one of the piston rods (6a, 6a) causes the linear damper to operate. By enclosing the linear damper in the steering shaft (2), a space for disposing the steering damping device can be minimized. The feed screw (12) converts a rotational displacement of the steering shaft (2) into an axial displacement of the piston rods (6a, 6b) such that a bending load does not act on the piston rods (6a, 6b).Type: ApplicationFiled: June 16, 2008Publication date: January 1, 2009Applicant: KAYABA INDUSTRY CO., LTD.Inventor: Ken Furuya
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Publication number: 20080230335Abstract: A front fork comprises a telescopic tube (1, 32) in which a damper cylinder (3) generates a damping force. The damper cylinder (3) comprises a guide sleeve (4) and a free piston (6) having an inner circumference which slides on the outer circumference of the guide sleeve (4) and an outer circumference which slides on the inner circumference of the damper cylinder (3). A lateral through-hole (11) formed in the guide sleeve (4) connects an auxiliary reservoir (R3) formed outside the damper cylinder (3) and an oil reservoir (R2) via a flow path (12) formed in the guide sleeve (4) according to the displacement position of the free piston (6), thereby reducing the number of seal members required to be fitted on the outer circumference of the free piston (6) and enabling the free piston (6) to slide smoothly even when the telescopic tube (1, 32) suffers a bending force.Type: ApplicationFiled: February 25, 2008Publication date: September 25, 2008Applicant: KAYABA INDUSTRY CO., LTD.Inventors: Ken Furuya, Kiyoshi Kubo
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Patent number: 7413064Abstract: One of a pair of the hydraulic shock absorbers each mounted in the right and left sides of a front wheel for a two-wheel vehicle includes a contraction-side damping valve (5a) disposed in a flow passage (11) communicating a rod-side oil chamber (R1) with a piston-side oil chamber (R2), the contraction-side damping valve (5a) permitting an operating oil to flow from the piston-side oil chamber (R2) to the rod-side oil chamber (R1) only when a volume in the piston-side oil chamber (R2) is reduced, and a contraction-side check valve (6) disposed in a flow passage (10) communicating the piston-side oil chamber (R2) with the reservoir (R), the contraction-side check valve (6) permitting the operating oil to flow from the reservoir (R) to the piston-side oil chamber (R2) only when a volume in the piston-side oil chamber (R2) is increased.Type: GrantFiled: August 12, 2005Date of Patent: August 19, 2008Assignee: Kayaba Industry Co., Ltd.Inventor: Ken Furuya
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Publication number: 20080105505Abstract: The front fork (100) includes a fork main body (3) in which an inner tube (2) is inserted into an outer tube (1) to enable free expansion and contraction, a damper (10) generates a damping force when a rod (5) moves within a cylinder (4) as the fork main body (3) expands and contracts, an air chamber (15) delimited by a free piston (16), which compensates for variation in the internal volume of the cylinder (4) caused by invasion and retreat of the rod (5) into and from the cylinder (4), a pressurizing spring (19) housed in the air chamber (15), which biases the free piston (16) in a direction for enlarging the air chamber (15), and a sub-spring (30) which biases the free piston (16) in a direction for shrinking the air chamber (15) in opposition to the pressurizing spring (19).Type: ApplicationFiled: October 24, 2007Publication date: May 8, 2008Applicant: KAYABA INDUSTRY CO., LTD.Inventor: Ken Furuya
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Publication number: 20060054437Abstract: One of a pair of the hydraulic shock absorbers each mounted in the right and left sides of a front wheel for a two-wheel vehicle includes a contraction-side damping valve (5a) disposed in a flow passage (11) communicating a rod-side oil chamber (R1) with a piston-side oil chamber (R2), the contraction-side damping valve (5a) permitting an operating oil to flow from the piston-side oil chamber (R2) to the rod-side oil chamber (R1) only when a volume in the piston-side oil chamber (R2) is reduced, and a contraction-side check valve (6) disposed in a flow passage (10) communicating the piston-side oil chamber (R2) with the reservoir (R), the contraction-side check valve (6) permitting the operating oil to flow from the reservoir (R) to the piston-side oil chamber (R2) only when a volume in the piston-side oil chamber (R2) is increased.Type: ApplicationFiled: August 12, 2005Publication date: March 16, 2006Inventor: Ken Furuya
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Patent number: 6568664Abstract: A flow restriction part (10) which provides a resistance to high speed oil is provided in a reservoir (R), and an air chamber (A2) which contracts according to an oil pressure is disposed underneath this flow restriction part (10). Providing such flow restriction part and air chamber in addition to an air chamber (A1), a repulsive force when the front fork contracts at high speed, such as during sudden braking, increases larger than during normal contraction while mechanical vibration caused by road unevenness during normal running is absorbed.Type: GrantFiled: October 10, 2001Date of Patent: May 27, 2003Assignee: Kayaba Kogyo Kabushiki KaishaInventor: Ken Furuya
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Publication number: 20020040833Abstract: A flow restriction part (10) which provides a resistance to high speed oil is provided in a reservoir (R), and an air chamber (A2) which contracts according to an oil pressure is disposed underneath this flow restriction part (10). Providing such flow restriction part and air chamber in addition to an air chamber (A1), a repulsive force when the front fork contracts at high speed, such as during sudden braking, increases larger than during normal contraction while mechanical vibration caused by road unevenness during normal running is absorbed.Type: ApplicationFiled: October 10, 2001Publication date: April 11, 2002Inventor: Ken Furuya
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Publication number: 20010036544Abstract: A film for a decorative sheet comprising: (A) a polypropylene resin having a melt flow rate of 0.1 to 50 g/10 min, a heat of crystal fusion of 30 to 140 J/g, and a flexural modulus of 1000 to 20,000 kgf/cm2; and (B) an ethylene copolymer resin obtained by copolymerization in the presence of a metallocene catalyst, the ethylene copolymer comprising ethylene and an &agr;-olefin having 3 to 12 carbon atoms and having a density of 0.86 to 0.92 g/cm3, a melt flow rate of 0.1 to 30, and a ratio of its weight-average molecular weight (Mw) to its number-average molecular weight ratio (Mn), Mw/Mn, of 1 to 5, the weight ratio of component (A) to component (B) being from 99/1 to 50/50. Also disclosed are a decorative sheet and a decorative material each comprising the film.Type: ApplicationFiled: March 14, 2001Publication date: November 1, 2001Applicant: Mitsubishi Chemical MKV CompanyInventors: Kazuya Hori, Ken Furuya
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Publication number: 20010024714Abstract: A film for a decorative sheet comprising: (A) a polypropylene resin having a melt flow rate of 0.1 to 50 g/10 min, a heat of crystal fusion of 30 to 140 J/g, and a flexural modulus of 1000 to 20,000 kg/cm2; and (B) an ethylene copolymer resin obtained by copolymerization in the presence of a metallocene catalyst, the ethylene copolymer comprising ethylene and an &agr;-olefin having 3 to 12 carbon atoms and having a density of 0.86 to 0.92 g/cm3, a melt flow rate of 0.1 to 30, and a ratio of its weight-average molecular weight (Mw) to its number-average molecular weight ratio (Mn), Mw/Mn, of 1 to 5, the weight ratio of component (A) to component (B) being from {fraction (99/1)} to {fraction (50/50)}. Also disclosed are a decorative sheet and a decorative material each comprising the film.Type: ApplicationFiled: December 14, 1998Publication date: September 27, 2001Inventors: KAZUYA HORI, KEN FURUYA
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Patent number: 6221465Abstract: A film for a decorative sheet comprising a polyolefin and a benzotriazole ultraviolet absorber, said bensotriazole ultraviolet absorber having a molecular weight of 380 to 1000 and/or a vapor pressure of not higher than 1×10−8 mmHg (absolute pressure) at 20° C. Also disclosed are a decorative sheet and a decorative material comprising the film. The film is free from blooming and hardly undergoes fading or deterioration by light.Type: GrantFiled: November 20, 1998Date of Patent: April 24, 2001Assignee: Mitsubishi Chemical MKV CompanyInventors: Kazuya Hori, Ken Furuya
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Patent number: 4933718Abstract: An electrostatographic printing apparatus has a main frame and a unit including an imaging member, the unit being removably mounted to the main frame at a predetermined position for cooperative association with the main frame in producing prints, the unit includes detectable element, and the main frame includes a detector for detecting the detectable element when the unit is in its predetermined position and provides an indication when the detector does not detect the detectable element.Type: GrantFiled: October 16, 1986Date of Patent: June 12, 1990Assignee: Xerox CorporationInventor: Ken Furuya