Patents by Inventor Kozo Kitagawa
Kozo Kitagawa 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: 10941696Abstract: An engine cover capable of appropriately covering the upper side of an engine is provided. An engine cover is provided with a plate member installed above an engine, and the plate member is provided with a reinforcement structure for increasing the torsional rigidity of the plate member.Type: GrantFiled: June 7, 2019Date of Patent: March 9, 2021Assignee: Kubota CorporationInventors: Seigi Aratake, Kozo Kitagawa, Takahiro Miyasaka, Koji Kashiwase
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Publication number: 20200003109Abstract: An engine cover capable of appropriately covering the upper side of an engine is provided. An engine cover is provided with a plate member installed above an engine, and the plate member is provided with a reinforcement structure for increasing the torsional rigidity of the plate member.Type: ApplicationFiled: June 7, 2019Publication date: January 2, 2020Inventors: Seigi Aratake, Kozo Kitagawa, Takahiro Miyasaka, Koji Kashiwase
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Patent number: 7351171Abstract: A rear hub has a hub shaft and a hub outer that is configured to be mounted in a freely rotatable manner to the hub shaft. The hub outer has an outer main body and an adapter. The outer main body is arranged on the radially inward side of a sprocket, and has a first rotation preventing section that engages with an engaging section 64 of the sprocket in such a manner that the outer main body cannot rotate relative to the sprocket. The adapter is mounted in a freely rotatable manner on an adapter mounting section of the outer main body. The adapter includes a second rotation preventing section that engages with the engaging section of the sprocket in such a manner that the adapter cannot rotate relative to the sprocket.Type: GrantFiled: June 2, 2004Date of Patent: April 1, 2008Assignee: Shimano Inc.Inventors: Takanori Kanehisa, Takuji Tatsumi, Kozo Kitagawa
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Publication number: 20070137423Abstract: A bicycle bottom bracket assembly has a crank axle and a pair of bearing units coupled thereto. The bearing units are configured to be mounted in a tubular hanger part or bottom bracket tube of a bicycle frame. The crank axle has a central portion, a first axial end portion disposed on a first side of the central portion and a second axial end portion disposed on a second side of the central portion. Each of the bearing units has an outer race, an inner race and a plurality of rolling members between the first outer and inner race. At least one of the bearing units has at least one drainage passage formed in the outer race.Type: ApplicationFiled: May 23, 2006Publication date: June 21, 2007Applicant: Shimano Inc.Inventor: Kozo Kitagawa
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Publication number: 20070137424Abstract: A bicycle bottom bracket assembly has a crank axle, a pair of bearing units and a pair of retaining clips. The bearing units are configured to be mounted in a tubular hanger part or bottom bracket tube of a bicycle frame. The crank axle has a central portion, a first axial end portion with a first recess disposed on a first side of the central portion and a second axial end portion with a second recess disposed on a second side of the central portion. One of bearing units is disposed on the first axial end portion of the crank axle at a location axially inward of the first recess, while the other bearing unit is disposed on the second axial end portion of the crank axle at a location axially inward of the second recess. One of retaining clips is disposed in the first recess and is configured to retain the one of the bearing units on the first axial end portion of the crank axle.Type: ApplicationFiled: May 23, 2006Publication date: June 21, 2007Applicant: Shimano Inc.Inventor: Kozo Kitagawa
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Publication number: 20050009654Abstract: A rear hub has a hub shaft and a hub outer that is configured to be mounted in a freely rotatable manner to the hub shaft. The hub outer has an outer main body and an adapter. The outer main body is arranged on the radially inward side of a sprocket, and has a first rotation preventing section that engages with an engaging section 64 of the sprocket in such a manner that the outer main body cannot rotate relative to the sprocket. The adapter is mounted in a freely rotatable manner on an adapter mounting section of the outer main body. The adapter includes a second rotation preventing section that engages with the engaging section of the sprocket in such a manner that the adapter cannot rotate relative to the sprocket.Type: ApplicationFiled: June 2, 2004Publication date: January 13, 2005Applicant: Shimano Inc.Inventors: Takanori Kanehisa, Takuji Tatsumi, Kozo Kitagawa
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Publication number: 20030226420Abstract: A bicycle handlebar is provided that has a center portion, a first end portion and a second end portion. The first end portion is located on a first lateral side of the center portion. The second end portion is located on a second lateral side of the center portion. The center portion, the first end portion and the second end portion are formed together as a one-piece, unitary tubular member. At least one the center portion, the first end portion and the second end portion includes a tubular attachment portion having an exterior cross sectional surface with at least one flat alignment surface. The flat alignment surface facilitates in mounting components and/or accessories, such as hand grips, shifters, brake levers, mirrors, displays, etc., to the handlebar.Type: ApplicationFiled: June 10, 2002Publication date: December 11, 2003Applicant: SHIMANO INC.Inventors: Takeshi Oi, Kozo Kitagawa, Atsushi Komatsu
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Patent number: 6331771Abstract: A magnetic device mounts on a flat spoke of a wheel. This magnetic device can comprise a magnet and a housing. The housing is coupled to the magnet, and has a spoke-receiving recess with a non-circular cross section, and at least one detent. The detent extends from the housing into the spoke-receiving recess to secure a flat spoke within the spoke-receiving recess via a snap-fit. The magnetic device communicates with a sensing device, which is adapted to be coupled to a portion of the bicycle that is adjacent to a wheel of the bicycle. A display unit, adapted to be mounted on handlebars of the bicycle, displays the speed information obtained from the sensing device. In a second embodiment, the housing is made of a more elastic material, and the detents become optional. In a third embodiment, the spoke-receiving recess of the housing has a projection that engages a concavity form in the connecting portion of the spoke.Type: GrantFiled: February 23, 1999Date of Patent: December 18, 2001Assignee: Shimano, Inc.Inventors: Tsutomu Muraoka, Kazuo Wada, Kozo Kitagawa
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Patent number: 6188215Abstract: A magnetic assembly is provided for a bicycle monitoring device. The magnetic assembly includes a magnetic device that mounts on a special spoke of a wheel. This magnetic device has a housing with a magnet secured thereto. The housing has a spoke-receiving recess that receives the spoke. The housing can be secured to the spoke within the spoke-receiving recess via a snap-fit or an elastic fit. In one embodiment, the spoke-receiving recess of the housing has a projection that engages a concavity form in the connecting portion of the spoke. In another embodiment, the spoke-receiving recess of the housing has a concavity that engages a projection form on the connecting portion of the spoke. The magnetic device communicates with a sensing device, which is coupled to a portion of the bicycle that is adjacent to a wheel of the bicycle. A display unit that is mounted on handlebars of the bicycle displays the speed information obtained from the sensing device.Type: GrantFiled: February 23, 1999Date of Patent: February 13, 2001Assignee: Shimano Inc.Inventors: Tsutomu Muraoka, Kazuo Wada, Kozo Kitagawa
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Patent number: RE39781Abstract: A magnetic device mounts on a flat spoke of a wheel. This magnetic device can comprise a magnet and a housing. The housing is coupled to the magnet, and has a spoke-receiving recess with a non-circular cross section, and at least one detent. The detent extends from the housing into the spoke-receiving recess to secure a flat spoke within the spoke-receiving recess via a snap-fit. The magnetic device communicates with a sensing device, which is adapted to be coupled to a portion of the bicycle that is adjacent to a wheel of the bicycle. A display unit, adapted to be mounted on handlebars of the bicycle, displays the speed information obtained from the sensing device. In a second embodiment, the housing is made of a more elastic material, and the detents become optional. In a third embodiment, the spoke-receiving recess of the housing has a projection that engages a concavity form in the connecting portion of the spoke.Type: GrantFiled: November 15, 2004Date of Patent: August 21, 2007Assignee: Shimano Inc.Inventors: Tsutomu Muraoka, Kozo Kitagawa, Kazuo Wada