Patents by Inventor Shinpei Okajima
Shinpei Okajima 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: 6582029Abstract: A bicycle rim includes side portions with an outer portion extending between the side portions to form a pair of outer corners, and a spoke attachment portion. The outer portion includes a pair of ridges spaced from the outer corners. The ridges preferably divide a pair of inclined surfaces. The side portions preferably include a pair of ground braking surfaces with a pair of sloping surfaces extending from the braking surfaces to a pair of outer side surfaces. A tubeless bicycle tire is mounted on the rim and includes a tread portion, a pair of sidewalls and a pair of beads. Each bead has an inner foot surface supported on one of the ridges. Preferably, each bead has a reinforcement member with a center axis. Each ridge is preferably located between one of the center axes and an inner edge of one of the inner foot surfaces.Type: GrantFiled: May 25, 2001Date of Patent: June 24, 2003Assignee: Shimano Inc.Inventor: Shinpei Okajima
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Publication number: 20030098608Abstract: A bicycle rim includes side portions with an outer portion extending between the side portions to form a pair of outer corners, and a spoke attachment portion. The outer portion includes a pair of ridges spaced from the outer corners. The ridges preferably divide a pair of inclined surfaces. The side portions preferably include a pair of ground braking surfaces with a pair of sloping surfaces extending from the braking surfaces to a pair of outer side surfaces.Type: ApplicationFiled: November 29, 2001Publication date: May 29, 2003Applicant: Shimano Inc.Inventor: Shinpei Okajima
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Patent number: 6568766Abstract: A hollow bicycle rim includes a pair of side portions, an outer portion and a spoke attachment portion with a plurality of spoke openings. The side portions have ribs to form opposing tire supporting surfaces. The outer portion extends between the side portions. The outer portion includes a pair of annular inclined surfaces extending radially inwardly from the side portions with a curved connecting surface extending therebetween. The spoke attachment portion is rigidly coupled with the side portions and the outer portion. The inclined surfaces are preferably angled between three degrees and seventeen degrees. The outer annular portion preferably has at least one aperture, but fewer than half of the number of spoke openings. The side portions preferably have a pair of inner bent sections. A pair of spoke attachment sections with the plurality of circumferentially arranged spoke openings preferably have radial lengths larger than the spoke openings.Type: GrantFiled: February 28, 2001Date of Patent: May 27, 2003Assignee: Shimano Inc.Inventors: Shinpei Okajima, Tsutomu Muraoka
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Publication number: 20030090142Abstract: A bicycle wheel basically has a hub, a plurality of spokes extending outwardly from the hub and an annular rim coupled to the outer ends of the spokes for supporting a tire. The annular rim has a spoke attachment portion with a plurality of spoke openings for receiving the outer ends of the spokes therein. The spoke openings of the annular rim have reinforcement members located between the spokes and annular rim. The outer ends of the spokes have bent sections located within the spoke holes of the reinforcement members or washers and head section that engage the inner surface of the reinforcement members. The rim is free of access apertures or holes in the outer annular portion adjacent a majority of the spoke holes. The reinforcement member has a transverse dimension allowing the outer end of the spoke and the reinforcement member to pass through the openings in a first orientation and be retained in the openings in a second orientation.Type: ApplicationFiled: December 27, 2002Publication date: May 15, 2003Applicant: Shimano Inc.Inventors: Shinpei Okajima, Tsutomu Muraoka
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Patent number: 6536849Abstract: A bicycle wheel basically has a hub, a plurality of spokes extending outwardly from the hub and an annular rim coupled to the outer ends of the spokes for supporting a tire. The annular rim has a spoke attachment portion with a plurality of spoke openings for receiving the outer ends of the spokes therein. The spoke openings of the annular rim have reinforcement members located between the spokes and annular rim. The outer ends of the spokes have bent sections located within the spoke holes of the reinforcement members or washers and head section that engage the inner surface of the reinforcement members. The rim is free of access apertures or holes in the outer annular portion adjacent a majority of the spoke holes. The reinforcement member has a transverse dimension allowing the outer end of the spoke and the reinforcement member to pass through the openings in a first orientation and be retained in the openings in a second orientation.Type: GrantFiled: November 20, 2000Date of Patent: March 25, 2003Assignee: Shimano Inc.Inventors: Shinpei Okajima, Tsutomu Muraoka
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Patent number: 6536795Abstract: A snowboard binding system has a boot and a binding configured to be releasably coupled together. The boot has an upper portion, a sole portion, a front catch located, and a rear catch. The binding includes a base member, a rear binding arrangement, and a front binding member. The front binding member includes a front claw pivotally coupled to the base member to move between a release position and a latched position. The front claw has a generally V-shaped free end surface. A catch engaging surface is located between the mounting portion of the front catch and the apex of the V-shaped free end surface. A guide surface is located between the apex and a free edge of the V-shaped free end surface. The catch engaging surface faces generally towards the base member and the guide surface faces generally away the base member.Type: GrantFiled: November 30, 2001Date of Patent: March 25, 2003Assignee: Shimano Inc.Inventors: Shinpei Okajima, Hiroshi Morita, Kimitake Takahama
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Patent number: 6530590Abstract: A snowboard binding system includes a boot and a binding configured to be releasable coupled together. The boot has a mid sole constructed of a first material and an outer sole constructed of a second material. The first material has a lower coefficient of friction than the second material. First and second rear catches are formed on first and second lateral sides of the mid sole to engage a rear binding arrangement of the binding. A front catch of the boot selectively engages a front binding member of the binding. The outer sole partially covers the mid sole such that the mid sole is exposed in an area adjacent at least one of the first and second lateral sides. The binding includes a base member with a rear guide member and has an upper boot support surface arranged to contact the exposed area of the mid sole.Type: GrantFiled: November 30, 2001Date of Patent: March 11, 2003Assignee: Shimano Inc.Inventors: Shinpei Okajima, Hiroshi Morita, Kimitaka Takahama
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Publication number: 20020175560Abstract: A bicycle rim includes side portions with an outer portion extending between the side portions to form a pair of outer corners, and a spoke attachment portion. The outer portion includes a pair of ridges spaced from the outer corners. The ridges preferably divide a pair of inclined surfaces. The side portions preferably include a pair of ground braking surfaces with a pair of sloping surfaces extending from the braking surfaces to a pair of outer side surfaces. A tubeless bicycle tire is mounted on the rim and includes a tread portion, a pair of sidewalls and a pair of beads. Each bead has an inner foot surface supported on one of the ridges. Preferably, each bead has a reinforcement member with a center axis. Each ridge is preferably located between one of the center axes and an inner edge of one of the inner foot surfaces.Type: ApplicationFiled: May 25, 2001Publication date: November 28, 2002Inventor: Shinpei Okajima
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Publication number: 20020153698Abstract: A snowboard binding system is provided that is relatively easy to step-in and step-out of. The snowboard binding has a base member, a front binding member movably coupled the base member between a release position and a latched position, and a pair of rear binding members coupled to lateral sides of the base member. The rear binding members have latch members movable relative to the base member to selectively hold the rear catch portions of a snowboard boot. The latch members are arranged to move laterally apart relative to each other upon application of a force direction substantially towards the base member. The first and second latch members are arranged to selectively hold the catch members in a plurality of engagement positions having different heights above the base member.Type: ApplicationFiled: April 18, 2001Publication date: October 24, 2002Inventor: Shinpei Okajima
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Publication number: 20020153700Abstract: A snowboard boot has a sole portion and an upper portion. The sole portion includes a mid sole having a base portion with a front catch coupled to a toe section of the base portion. The first and second rear catches are located at first and second lateral sides of a heel section of the base portion, and first and second strap attachment members extending from the heel section of the base portion. The upper portion includes a foot section fixedly coupled to the sole portion and a leg section extending upwardly from the foot section. The first and second strap attachment members are integrally formed with the base portion of said mid sole as a one-piece, unitary member.Type: ApplicationFiled: August 3, 2001Publication date: October 24, 2002Applicant: Shimano Inc.Inventor: Shinpei Okajima
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Publication number: 20020153702Abstract: A snowboard binding system has a boot and a binding configured to be releasably coupled together. The boot has an upper potion, a sole portion, a front catch and at least one rear catch. The binding includes a base member, a rear binding arrangement and a front binding member. The base member has a front portion and a rear portion. The rear binding arrangement is coupled to the rear portion to selectively engage the rear catch. The front binding member includes a front claw and a release lever. The front claw is movably coupled to the front portion of the base member. The release lever is coupled to the front claw to move therewith between a release position and a latched position. An indexing mechanism is arranged to selectively retain the front claw and the release lever in the release position and the latched position.Type: ApplicationFiled: November 30, 2001Publication date: October 24, 2002Applicant: Shimano Inc.Inventors: Shinpei Okajima, Hiroshi Morita, Kimitake Takahama
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Publication number: 20020153701Abstract: A snowboard binding system has a boot and a binding configured to be releasably coupled together. The boot has an upper portion, a sole portion, a front catch located, and a rear catch. The binding includes a base member, a rear binding arrangement, and a front binding member. The front binding member includes a front claw pivotally coupled to the base member to move between a release position and a latched position. The front claw has a generally V-shaped free end surface. A catch engaging surface is located between the mounting portion of the front catch and the apex of the V-shaped free end surface. A guide surface is located between the apex and a free edge of the V-shaped free end surface. The catch engaging surface faces generally towards the base member and the guide surface faces generally away the base member.Type: ApplicationFiled: November 30, 2001Publication date: October 24, 2002Applicant: Shimano Inc.Inventors: Shinpei Okajima, Hiroshi Morita, Kimitaka Takahama
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Publication number: 20020153703Abstract: A snowboard binding system includes a boot and a binding configured to be releasably coupled together. The snowboard binding includes a base member, a rear binding arrangement, and a front binding arrangement. The snowboard boot includes an upper portion, a sole portion, at least one rear catch and a front catch. The sole portion has a forward to rearward longitudinal axis extending between a toe section and a heel section. The rear catch is located at the heel section of the sole portion. The front catch is coupled to the toe section. The front catch has a pair of leg portions extending downwardly from the toe section and a tongue portion extending laterally between the leg portions. The tongue portion has a forward to rearward dimension that is larger than forward to rearward dimensions of the leg portions to longitudinally secure the boot relative to the binding.Type: ApplicationFiled: November 30, 2001Publication date: October 24, 2002Applicant: Shimano Inc.Inventors: Shinpei Okajima, Hiroshi Morita, Kimitaka Takahama
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Publication number: 20020153699Abstract: A snowboard binding system has a snowboard boot configured to be releasable coupled to a snowboard binding. The snowboard boot has a sole portion with a front catch and a pair of rear catches located at the lateral sides of the sole portion. The snowboard binding includes a base member, a pair of rear binding members and a front binding member. The front binding member includes a front pawl movably coupled to the front portion of the base member between a release position and a latched position and a front stop member fixedly coupled to the front portion of the base member adjacent the front pawl. The front stop member has a stop surface spaced from a latching surface of the front pawl to form a front cleat receiving area therebetween.Type: ApplicationFiled: August 3, 2001Publication date: October 24, 2002Applicant: Shimano Inc.Inventor: Shinpei Okajima
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Publication number: 20020153704Abstract: A snowboard binding system has a boot and a binding configured to be releasably coupled together. The boot has an upper potion, a sole portion, a front catch and at least one rear catch. The binding includes a base member, a rear binding arrangement and a front binding arrangement. The rear binding arrangement selectively engages at least one rear catch of the heel of the boot. The front binding arrangement selectively engages the front catch that extends downwardly from of the sole portion of the boot. The front binding arrangement and the front catch are arranged to limit forward and rearward movement of the boot relative to the binding and prevent premature release of the front catch from the front binding arrangement.Type: ApplicationFiled: March 28, 2002Publication date: October 24, 2002Applicant: SHIMANO INC.Inventors: Shinpei Okajima, Kimitaka Takahama
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Publication number: 20020153705Abstract: A snowboard binding system has a boot and a binding configured to be releasably coupled together. The boot has an upper potion, a sole portion, a front catch and at least one rear catch. The binding includes a base member, a rear binding arrangement and a front binding member. The base member has a front portion and a rear portion. The rear binding arrangement is coupled to the rear portion to selectively engage at least one rear catch. The rear catch has a concave abutment surface. The rear binding arrangement has a movable tooth portion with a convexly shaped latching surface designed to selectively engage the abutment surface to couple the boot to the binding. The abutment surface and the latching surface are configured to reduce flexing of the binding when the boot is deflected relative to the binding.Type: ApplicationFiled: February 14, 2002Publication date: October 24, 2002Applicant: SHIMANO INC.Inventors: Shinpei Okajima, Hiroshi Morita, Kimitaka Takahama
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Patent number: 6467193Abstract: A boot liner basically includes a sole portion, an upper portion and a tightening device. A tongue is preferably mounted in a slit formed in the upper portion. The tightening device is coupled to the upper portion for drawing opposite lateral sides of the upper portion towards one another. The tightening device includes a plurality of primary lacing portions formed on the upper portion, a power strap with a secondary lacing portion coupled to the upper portion and lacing extending in a crossing pattern across the slit and between the primary lacing portions and the secondary lacing portion of the power strap. The power strap has a first end fixed on a first side of the opposite lateral sides and a second end with the secondary lacing portion slideably coupled on a second side of the opposite lateral sides.Type: GrantFiled: August 3, 2001Date of Patent: October 22, 2002Assignee: Shimano Inc.Inventor: Shinpei Okajima
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Publication number: 20020100343Abstract: The bicycle pedal includes a pedal shaft,. a pedal body and an abrasive sheet coupled to a shoe engagement surface to enhance engagement of the pedal with a shoe. The pedal body is rotatably coupled to the second end of the pedal shaft. The shoe engagement surface preferably includes a recess with first and second curvatures. The first curvature has a first radius and the second curvature has a second radius larger than the first radius. The abrasive sheet is preferably coupled within the recess. Frictional characteristics are improved by a method including the steps of forming a pedal body with a recess and coupling an abrasive sheet in the recess of the pedal body. The abrasive sheet is positioned to resist peeling of the abrasive sheet from the pedal body. The pedal body can be formed of one or more pieces.Type: ApplicationFiled: January 30, 2001Publication date: August 1, 2002Inventors: Shinpei Okajima, Masao Kojima
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Patent number: 6398246Abstract: An active high back system is provided for automatically adjusting the snowboard boot between a walking position and a riding position. The snowboard boot is provided with an active highback support that is adjustably mounted to a snowboard boot. During walking, the active highback support does not constrain the flexibility of the snowboard boot making it possible for the snowboard rider to walk easily. When the rider steps into the bindings of the snowboard, the active highback support engages a part of the snowboard or binding that causes the snowboard boot to lean forward. In other words, the highback support is positioned to engage the back leg portion of a snowboard boot to provide a rigid surface that holds the boot in a forward leaning position. The active highback support is provided with an adjustment mechanism that allows the rider to adjust the amount of forward lean when the snowboard boot is engaged within the bindings of the snow board.Type: GrantFiled: February 13, 2001Date of Patent: June 4, 2002Assignee: Shimano Inc.Inventor: Shinpei Okajima
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Patent number: 6382381Abstract: A bicycle wheel basically has a central hub assembly, a plurality of spokes extending outwardly from the central hub assembly and an annular rim coupled to the outer ends of the spokes for supporting a tire. The central hub assembly has a hub axle, a hub unit, a freewheel and a sprocket assembly with a plurality of sprockets. The hub axle has a center axis extending between a first frame mounting end and a second frame mounting end. The hub unit has a hub body, a first spoke mounting portion, a second spoke mounting portion and an interior passageway. The first spoke mounting portion is located adjacent a first end of the hub body. The second spoke mounting portion is located adjacent a second end of the hub body. The interior passageway extends through the hub body with the hub axle being rotatably supported therein. The freewheel is operatively coupled between the first end of the hub axle and the first end of the hub body.Type: GrantFiled: September 6, 2000Date of Patent: May 7, 2002Assignee: Shimano Inc.Inventors: Shinpei Okajima, Tsutomu Muraoka