Patents by Inventor Michihiro Kodama
Michihiro Kodama 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: 9862454Abstract: A bicycle crank assembly has a rotational center axis and comprises a crank member, a sprocket member, a sliding mechanism, a first stopper member, a second stopper member and a damping member. The crank member rotatably is arranged around the rotational center axis. The sprocket member is integrally and rotatably attached to the crank member. The sliding mechanism movably coupling the sprocket member in an axial direction with respect to the crank member. The first stopper member is attached to the crank member. The second stopper member is attached to the sprocket member. The damping member is attached to at least one of the first stopper member and the second stopper member. The damping member is configured to contact the other of the first stopper member and the second stopper member while the sliding mechanism is in operation.Type: GrantFiled: June 30, 2017Date of Patent: January 9, 2018Assignee: Shimano Inc.Inventors: Nobukatsu Hara, Michihiro Kodama
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Publication number: 20170297649Abstract: A bicycle crank assembly has a rotational center axis and comprises a crank member, a sprocket member, a sliding mechanism, a first stopper member, a second stopper member and a damping member. The crank member rotatably is arranged around the rotational center axis. The sprocket member is integrally and rotatably attached to the crank member. The sliding mechanism movably coupling the sprocket member in an axial direction with respect to the crank member. The first stopper member is attached to the crank member. The second stopper member is attached to the sprocket member. The damping member is attached to at least one of the first stopper member and the second stopper member. The damping member is configured to contact the other of the first stopper member and the second stopper member while the sliding mechanism is in operation.Type: ApplicationFiled: June 30, 2017Publication date: October 19, 2017Inventors: Nobukatsu HARA, Michihiro KODAMA
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Patent number: 9725132Abstract: A bicycle crank assembly having a rotational center axis is basically provided with a crank member and a sprocket member. The crank member includes a support portion that extends in the axial direction and an arm portion that is integrally rotatable around the rotational center axis with the support portion. The sprocket member includes a sliding portion that extends in the axial direction that is integrally rotatable with respect to the support portion and that is displaceable in the axial direction. The bicycle crank assembly is constructed to achieve high strength and to suppress the decrease in the efficiency of the rotation transmission from the crank member to the sprocket member in a crank assembly in which the sprocket member is movable in the axial direction.Type: GrantFiled: July 22, 2014Date of Patent: August 8, 2017Assignee: Shimano Inc.Inventors: Nobukatsu Hara, Michihiro Kodama
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Patent number: 9580138Abstract: A bicycle crank assembly comprises a crank axle, a first crank arm, and a battery holding structure. The crank axle comprises a cavity and a first end portion. A battery unit is to be provided in the cavity. The first end portion has a first end opening which is in communication with the cavity. The first crank arm is configured to be mounted on the first end portion. The battery holding structure is configured to hold the battery unit in the cavity. The battery holding structure is configured so that the battery unit is replaceable through the first end opening in a state where the first crank arm is mounted on the first end portion of the crank axle.Type: GrantFiled: July 30, 2014Date of Patent: February 28, 2017Assignee: SHIMANO INC.Inventors: Toshio Tetsuka, Shintarou Mori, Fumiaki Yoshida, Michihiro Kodama
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Patent number: 9511809Abstract: A height adjustable seatpost assembly is provided with first and second tubes, a ratchet mechanism and a drive source. The first and second tubes are telescopically arranged. The ratchet mechanism includes a ratchet tooth structure and a pawl structure. The pawl structure is engaged with the ratchet tooth structure in a lock position. The pawl structure is movably coupled with respect to the ratchet tooth structure in a movable position such that the first and second tubes are movably arranged relative to each other in at least one axial direction of the first and second tubes. The drive source moves the pawl structure between the lock position and the movable position in response to operation of the drive source. The drive source further axially moves the first and second tubes relative to each other in response to operation of the drive source.Type: GrantFiled: February 23, 2010Date of Patent: December 6, 2016Assignee: Shimano Inc.Inventors: Michihiro Kodama, Nobukatsu Hara, Toshikuni Suzuki
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Patent number: 9326412Abstract: An electric control device for a bicycle that includes a base member mountable to a bicycle handlebar, a first electric user interface member operatively coupled to the base member, and a second electric user interface member operatively coupled to the base member. The first electric user interface member and the second electric user interface member are adjustable relative to one another.Type: GrantFiled: November 16, 2012Date of Patent: April 26, 2016Assignee: SHIMANO INC.Inventors: Kentaro Kosaka, Nobukatsu Hara, Michihiro Kodama
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Publication number: 20160031523Abstract: A bicycle crank assembly comprises a crank axle, a first crank arm, and a battery holding structure. The crank axle comprises a cavity and a first end portion. A battery unit is to be provided in the cavity. The first end portion has a first end opening which is in communication with the cavity. The first crank arm is configured to be mounted on the first end portion. The battery holding structure is configured to hold the battery unit in the cavity. The battery holding structure is configured so that the battery unit is replaceable through the first end opening in a state where the first crank arm is mounted on the first end portion of the crank axle.Type: ApplicationFiled: July 30, 2014Publication date: February 4, 2016Applicant: SHIMANO INC.Inventors: Toshio TETSUKA, Shintarou MORI, Fumiaki YOSHIDA, Michihiro KODAMA
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Publication number: 20150274253Abstract: A bicycle crank assembly having a rotational center axis is basically provided with a crank member and a sprocket member. The crank member includes a support portion that extends in the axial direction and an arm portion that is integrally rotatable around the rotational center axis with the support portion. The sprocket member includes a sliding portion that extends in the axial direction that is integrally rotatable with respect to the support portion and that is displaceable in the axial direction. The bicycle crank assembly is constructed to achieve high strength and to suppress the decrease in the efficiency of the rotation transmission from the crank member to the sprocket member in a crank assembly in which the sprocket member is movable in the axial direction.Type: ApplicationFiled: July 22, 2014Publication date: October 1, 2015Inventors: Nobukatsu HARA, Michihiro KODAMA
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Patent number: 8882130Abstract: A bicycle drive assembly includes a rear hub and a cover. The rear hub includes a rear hub axle, a hub shell, a first rear sprocket and a disc brake rotor. The hub shell is rotatably mounted on the rear hub axle. The first rear sprocket is rotatably mounted on a first side of the rear hub axle. The disc brake rotor is rotatably mounted on the first side of the rear hub axle. The cover is disposed around the rear hub axle and axially between the first rear sprocket and the disc brake rotor.Type: GrantFiled: October 11, 2012Date of Patent: November 11, 2014Assignee: Shimano Inc.Inventors: Nobukatsu Hara, Michihiro Kodama
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Patent number: 8825279Abstract: A bicycle power sensing apparatus is basically provided with a power sensing device, a calibration signal generating device and a controller. The controller is operatively arranged to receive a calibration signal from the calibration signal generating device. The controller calibrates the power sensing device upon receiving the calibration signal.Type: GrantFiled: September 11, 2012Date of Patent: September 2, 2014Assignee: Shimano Inc.Inventors: Satoshi Kitamura, Michihiro Kodama
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Publication number: 20140139977Abstract: An electric control device for a bicycle that includes a base member mountable to a bicycle handlebar, a first electric user interface member operatively coupled to the base member, and a second electric user interface member operatively coupled to the base member. The first electric user interface member and the second electric user interface member are adjustable relative to one another.Type: ApplicationFiled: November 16, 2012Publication date: May 22, 2014Applicant: SHIMANO INC.Inventors: Kentaro KOSAKA, Nobukatsu HARA, Michihiro KODAMA
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Publication number: 20140102822Abstract: A bicycle drive assembly includes a rear hub and a cover. The rear hub includes a rear hub axle, a hub shell, a first rear sprocket and a disc brake rotor. The hub shell is rotatably mounted on the rear hub axle. The first rear sprocket is rotatably mounted on a first side of the rear hub axle. The disc brake rotor is rotatably mounted on the first side of the rear hub axle. The cover is disposed around the rear hub axle and axially between the first rear sprocket and the disc brake rotor.Type: ApplicationFiled: October 11, 2012Publication date: April 17, 2014Applicant: SHIMANO INC.Inventors: Nobukatsu HARA, Michihiro KODAMA
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Publication number: 20140074348Abstract: A bicycle power sensing apparatus is basically provided with a power sensing device, a calibration signal generating device and a controller. The controller is operatively arranged to receive a calibration signal from the calibration signal generating device. The controller calibrates the power sensing device upon receiving the calibration signal.Type: ApplicationFiled: September 11, 2012Publication date: March 13, 2014Applicant: SHIMANO INC.Inventors: Satoshi KITAMURA, Michihiro KODAMA
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Patent number: 8650972Abstract: A bicycle hub apparatus comprises an axle, a hub member supported for rotation around the hub axle, an intermediate drive member supported for rotation around the hub axle and having a first portion and a second portion, a sensor shaft supported for rotation around the hub axle and having a first portion and a second portion, and a force sensor unit disposed on the sensor shaft. The first portion of the intermediate drive member is structured to receive an external rotational driving force, the first portion of the sensor shaft is coupled to the second portion of the intermediate drive member to receive the rotational driving force, and the second portion of the sensor shaft is coupled to the hub member for communicating the rotational driving force to the hub member. The intermediate drive member and the sensor shaft are coupled to each other within the hub member.Type: GrantFiled: June 2, 2011Date of Patent: February 18, 2014Assignee: Shimano, Inc.Inventors: Satoshi Kitamura, Michihiro Kodama
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Publication number: 20120304783Abstract: A bicycle hub apparatus comprises an axle, a hub member supported for rotation around the hub axle, an intermediate drive member supported for rotation around the hub axle and having a first portion and a second portion, a sensor shaft supported for rotation around the hub axle and having a first portion and a second portion, and a force sensor unit disposed on the sensor shaft. The first portion of the intermediate drive member is structured to receive an external rotational driving force, the first portion of the sensor shaft is coupled to the second portion of the intermediate drive member to receive the rotational driving force, and the second portion of the sensor shaft is coupled to the hub member for communicating the rotational driving force to the hub member. The intermediate drive member and the sensor shaft are coupled to each other within the hub member.Type: ApplicationFiled: June 2, 2011Publication date: December 6, 2012Applicant: SHIMANO, INC.Inventors: Satoshi Kitamura, Michihiro Kodama
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Patent number: 8246065Abstract: A height adjustable seatpost assembly is provided with first and second tubes that are telescopically arranged to change an overall length of the height adjustable seatpost assembly using first and second ratchet arrangements. The first ratchet arrangement includes a set of first ratchet teeth having a first pitch and a first stop pawl member being movably coupled with respect to the first ratchet teeth between a first lock position and a first free position. The second ratchet arrangement includes a set of second ratchet teeth having a second pitch that is smaller than the first pitch and a second stop pawl member being movably coupled with respect to the second ratchet teeth between a second lock position and a second free position. The stop pawl members engage the ratchet teeth in the lock positions to prevent expansion of the first and second tubes.Type: GrantFiled: July 5, 2011Date of Patent: August 21, 2012Assignee: Shimano Inc.Inventors: Michihiro Kodama, Nobukatsu Hara
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Patent number: 8057332Abstract: A bicycle derailler is basically provided with a base member, a movable member, a coupling member and a cable actuation ratio control mechanism. The movable member supports a chain guide. The coupling member movably couples the movable member to the base member. The cable actuation ratio control mechanism includes first and second link members. The first link member has a pivoting portion, a cable connection portion and a second link coupling portion. The pivoting portion is pivotally mounted to one of the coupling member and the base member. The cable connection portion is located on one side of the pivoting portion, while the second link coupling portion is located on the other side of the pivoting portion. The second link member is coupled to the first link member at the second link coupling portion and pivotally mounted to one of the movable member and the coupling member.Type: GrantFiled: January 22, 2009Date of Patent: November 15, 2011Assignee: Shimano Inc.Inventors: Takeshi Takachi, Michihiro Kodama
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Publication number: 20110204201Abstract: A height adjustable seatpost assembly is provided with first and second tubes, a ratchet mechanism and a drive source. The first and second tubes are telescopically arranged. The ratchet mechanism includes a ratchet tooth structure and a pawl structure. The pawl structure is engaged with the ratchet tooth structure in a lock position. The pawl structure is movably coupled with respect to the ratchet tooth structure in a movable position such that the first and second tubes are movably arranged relative to each other in at least one axial direction of the first and second tubes. The drive source moves the pawl structure between the lock position and the movable position in response to operation of the drive source. The drive source further axially moves the first and second tubes relative to each other in response to operation of the drive source.Type: ApplicationFiled: February 23, 2010Publication date: August 25, 2011Applicant: SHIMANO INC.Inventors: Michihiro KODAMA, Nobukatsu HARA, Toshikuni SUZUKI
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Publication number: 20100184545Abstract: A bicycle derailleur is basically provided with a base member, a movable member, a coupling member and a cable actuation ratio control mechanism. The movable member supports a chain guide. The coupling member movably couples the movable member to the base member. The cable actuation ratio control mechanism includes first and second link members. The first link member has a pivoting portion, a cable connection portion and a second link coupling portion. The pivoting portion is pivotally mounted to one of the coupling member and the base member. The cable connection portion is located on one side of the pivoting portion, while the second link coupling portion is located on the other side of the pivoting portion. The second link member is coupled to the first link member at the second link coupling portion and pivotally mounted to one of the movable member and the coupling member.Type: ApplicationFiled: January 22, 2009Publication date: July 22, 2010Applicant: SHIMANO INC.Inventors: Takeshi TAKACHI, Michihiro KODAMA