Patents by Inventor Kazuhiro Fujii
Kazuhiro Fujii 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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Publication number: 20050145462Abstract: An electrical shift and brake control device is configured to combine an electrical shift operating device and a cable operated brake operating device. The control device basically has a brake lever bracket with a pivotally mounted brake lever moveably coupled to the brake lever bracket to move between a rest position and a braking position along a brake operating plane, and at least one an electrical shift control switch. The electrical shift control switch is either fixedly mounted to the brake lever or the brake lever bracket. When two electrical shift control switches are used, the electrical shift control switches are mounted to both the brake lever and the brake lever bracket. In some embodiments, the electrical shift control switch has a rotating operating member, while other embodiments have a sliding operating member.Type: ApplicationFiled: March 9, 2005Publication date: July 7, 2005Applicant: Shimano Inc.Inventors: Kouji Uno, Kazuhiro Fujii
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Publication number: 20050109577Abstract: An electrical shift and brake control device is configured to combine an electrical shift operating device and a cable operated brake operating device. The control device basically has a brake lever bracket with a pivotally mounted brake lever moveably coupled to the brake lever bracket to move between a rest position and a braking position along a brake operating plane, and at least one an electrical shift control switch. The electrical shift control switch is either fixedly mounted to the brake lever or the brake lever bracket. When two electrical shift control switches are used, the electrical shift control switches are mounted to both the brake lever and the brake lever bracket. In some embodiments, the electrical shift control switch has a rotating operating member, while other embodiments have a sliding operating member.Type: ApplicationFiled: November 26, 2003Publication date: May 26, 2005Applicant: Shimano Inc.Inventors: Kouji Uno, Kazuhiro Fujii
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Publication number: 20050075774Abstract: A bicycle shift control apparatus comprises a threshold value setting unit that sets a threshold value of a running condition for shifting a bicycle transmission, a decision unit that decides if a current running condition value passes the threshold value, and a tentative shift unit that sets a tentative shift of the bicycle transmission when the decision unit decides that the current running condition value passes the threshold value. A canceling unit cancels the tentative shift if the decision unit decides that the current running condition value varies from a previous running condition value by a predetermined value.Type: ApplicationFiled: September 24, 2004Publication date: April 7, 2005Applicant: SHIMANO, INC.Inventors: Ryuichiro Takamoto, Koji Uno, Kazuhiro Fujii
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Patent number: 6866279Abstract: An apparatus for controlling upshifting and downshifting of a bicycle transmission includes a running condition detecting mechanism that detects a running condition of the bicycle, a threshold value setting mechanism that sets at least one of an upshift threshold value and a downshift threshold value for the running condition, and a control mechanism. The control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding upshift threshold value and downshift threshold value for a first predetermined time interval. In another embodiment, the control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding one of the upshift threshold value and the downshift threshold value at both a first detection and a second detection, wherein the second detection occurs after the first detection.Type: GrantFiled: August 27, 2003Date of Patent: March 15, 2005Assignee: Shimano, Inc.Inventor: Kazuhiro Fujii
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Publication number: 20050029879Abstract: The hub generator for a bicycle basically comprises a hub shaft, a hub body, an electricity generating mechanism, a wiring unit, a wiring passage, and a wiring draw-out part. Both ends of the hub shaft are adapted to be mounted in a non-rotational manner to a frame of the bicycle using first and second nuts. The wiring unit is connected to the electricity generating mechanism and configured to be connected to an external device. The wiring passage is formed inside the hub shaft and extends from the electricity generating mechanism to the first shaft end of the hub shaft such that the wiring unit can be drawn out from the first shaft end. The wiring draw-out part is configured to be mounted to the first nut at the first shaft end and guide the wiring unit drawn out from the first shaft end to the outside.Type: ApplicationFiled: July 6, 2004Publication date: February 10, 2005Applicant: Shimano Inc.Inventors: Takahiro Endo, Kazuhiro Fujii
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Patent number: 6843741Abstract: A bell crank for a bicycle hub transmission includes a wire connecting bell crank member for connecting to a control wire, an actuator moving bell crank member for moving an actuating member, and an adjusting mechanism for adjusting a position of the wire connecting bell crank member relative to the actuator moving bell crank member.Type: GrantFiled: August 8, 2002Date of Patent: January 18, 2005Assignee: Shimano, Inc.Inventor: Kazuhiro Fujii
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Publication number: 20050009651Abstract: An assisting apparatus for using power from a moving member to assist the operation of a bicycle transmission comprises a power transfer mechanism, a drive coupling mechanism, and a position maintaining mechanism. The power transfer mechanism moves in one of a first direction and a second direction to upshift the bicycle transmission, and the power transfer mechanism moves in the other one of the first direction and the second direction to downshift the bicycle transmission. The drive coupling mechanism couples the power transfer mechanism to the moving member to move the power transfer mechanism in one of the first direction and the second direction, and the position maintaining mechanism prevents the power transfer mechanism from moving in the other one of the first direction and the second direction.Type: ApplicationFiled: July 8, 2003Publication date: January 13, 2005Inventors: Tadashi Ichida, Kazuhiro Fujii
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Patent number: 6837505Abstract: An apparatus for controlling upshifting and downshifting of a bicycle transmission includes a running condition detecting mechanism that detects a running condition of the bicycle, a threshold value setting mechanism that sets at least one of an upshift threshold value and a downshift threshold value for the running condition, and a control mechanism. The control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding upshift threshold value and downshift threshold value for a first predetermined time interval. In another embodiment, the control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding one of the upshift threshold value and the downshift threshold value at both a first detection and a second detection, wherein the second detection occurs after the first detection.Type: GrantFiled: October 8, 2002Date of Patent: January 4, 2005Assignee: Shimano, Inc.Inventor: Kazuhiro Fujii
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Publication number: 20040189112Abstract: A front hub is configured and arranged to make minimize the trouble associated with lamp wiring from occurring in bicycle hubs having an electricity generating mechanism. The front hub has a hub shaft, a hub shell, a pair of bearings, a generator and first and second lamp units. The hub shaft is mounted in a non-rotatable manner to the front fork. The hub shell is arranged on the outside of the hub shaft so that it can rotate freely with respect to the hub shaft. The bearings are arranged between the hub shell and the hub shaft. The generator is arranged inside the hub shell and configured to generate electricity using the relative rotation of the hub shell with respect to the hub shaft. The first and second lamp units are arranged at both ends of the hub shell and illuminated using electric power from the generator.Type: ApplicationFiled: March 5, 2004Publication date: September 30, 2004Applicant: Shimano Inc.Inventors: Kazuhiro Fujii, Koji Uno
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Patent number: 6762386Abstract: A switchgear wherein a connecting portion to be connected to a transmission side branch bus container and a connecting portion to be connected to a receiving side branch bus container are provided on a circuit breaker container in an up and down relation so as to face the same direction. Any one of the transmission side branch bus container and the receiving side branch bus container is connected to the connecting portion positioned on the upper side, and the other is connected to the connecting portion positioned on the lower side, and a transmission side power cable terminal container or a receiving side power cable terminal container is arranged at a position deviated horizontally from the axis of the transmission side branch bus container or the receiving side branch bus container.Type: GrantFiled: September 6, 2002Date of Patent: July 13, 2004Assignee: Hitachi, Ltd.Inventors: Shunji Itou, Kazuhiro Fujii, Yoshiaki Inami, Katsuyuki Takada
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Publication number: 20040051273Abstract: An apparatus for controlling upshifting and downshifting of a bicycle transmission includes a running condition detecting mechanism that detects a running condition of the bicycle, a threshold value setting mechanism that sets at least one of an upshift threshold value and a downshift threshold value for the running condition, and a control mechanism. The control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding upshift threshold value and downshift threshold value for a first predetermined time interval. In another embodiment, the control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding one of the upshift threshold value and the downshift threshold value at both a first detection and a second detection, wherein the second detection occurs after the first detection.Type: ApplicationFiled: August 27, 2003Publication date: March 18, 2004Applicant: SHIMANO, INC., a JAPANESE CORPORATIONInventor: Kazuhiro Fujii
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Patent number: 6698273Abstract: An apparatus for inspecting the airtightness of a gas sensor includes an atmosphere-side jig located at a base end side of a sub assembly of the gas sensor, and a measurement gas-side jig located at a distal end side of the sub assembly. The measurement gas-side jig includes an air chamber, a socket receiving the sub assembly, and a high-pressure air source supplying a high-pressure air to the air chamber. The atmosphere-side jig includes a sealed chamber, a socket receiving the sub assembly, an airtight sealing portion, a low-pressure air source supplying the sealed chamber with a pressure lower than a pressure of the high-pressure air supplied to the air chamber, and a sensor portion leading to the sealed chamber.Type: GrantFiled: May 1, 2002Date of Patent: March 2, 2004Assignee: Denso CorporationInventor: Kazuhiro Fujii
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Publication number: 20040036585Abstract: A bicycle display apparatus comprises a display device adapted to be mounted to the bicycle, wherein the display device displays various types of information to a rider; a light sensor; and a display control element operatively coupled to the display device and to the light sensor for controlling the display device in accordance with signals from the light sensor. An apparatus provided for shifting a bicycle transmission having a plurality of gear positions comprises a running condition detector that detects a running condition of the bicycle; a light sensor; and a gearshift control element operatively coupled to the running condition detector and to the light sensor and providing a control signal for controlling the bicycle transmission in accordance with signals from the light sensor.Type: ApplicationFiled: July 7, 2003Publication date: February 26, 2004Applicant: Shimano, Inc.Inventors: Satoshi Kitamura, Kouji Uno, Kazuhiro Fujii
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Patent number: 6644135Abstract: A torque sensor for a bicycle bottom bracket assembly having a bottom bracket axle includes an axle supporting member for supporting the axle for rotation around a support axis. The axle supporting member has a first sensor mounting location, and a first pressure sensor is provided for placement at the first sensor mounting location. In a more specific embodiment, the axle supporting member includes a second sensor mounting location and a second pressure sensor is provided for placement at the second sensor mounting location. The second sensor mounting location may be spaced apart from the first sensor mounting location in the direction of the support axis. In this case the second sensor mounting location may face the first sensor mounting location in the direction of the support axis or may be disposed diagonally across from the first sensor mounting location in the direction of the support axis.Type: GrantFiled: August 31, 1999Date of Patent: November 11, 2003Assignee: Shimano, Inc.Inventors: Hitoshi Kishimoto, Kazuhiro Fujii
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Publication number: 20030171176Abstract: A derailleur includes a base member for attachment to a bicycle frame and a movable member supporting a chain guide such that the chain guide moves laterally to shift a chain among a plurality of gears. The base member has a laterally inner surface and a laterally outer surface, and it includes a projection extending laterally outwardly for engaging a corresponding recess in the frame.Type: ApplicationFiled: March 7, 2002Publication date: September 11, 2003Applicant: Shimano, Inc.Inventors: Satoshi Shahana, Shinya Oseto, Kazuhiro Fujii
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Publication number: 20030171175Abstract: A derailleur includes a base member for attachment to a bicycle frame and a movable member supporting a chain guide such that the chain guide moves laterally to shift a chain among a plurality of gears. The base member has a laterally inner surface and a laterally outer surface, and it includes a projection extending from one of the laterally inner surface and the laterally outer surface for engaging a corresponding recess in the frame.Type: ApplicationFiled: December 11, 2002Publication date: September 11, 2003Applicant: Shimano, Inc.Inventors: Satoshi Shahana, Shinya Oseto, Kazuhiro Fujii
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Patent number: 6598894Abstract: An apparatus for mounting a signal element to a bicycle wheel includes a base member for mounting to the wheel and a movable member coupled to the base member for movement relative to the base member, wherein the movable member includes a signal element mounting location.Type: GrantFiled: March 1, 2000Date of Patent: July 29, 2003Assignee: Shimano, Inc.Inventors: Kazuhiro Fujii, Kouji Uno
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Publication number: 20030128501Abstract: A switchgear is characterized in that a connecting portion to be connected to a transmission side branch bus container and a connecting portion to be connected to a receiving side branch bus container are provided on a circuit breaker container in an up and down relation so as to face the same direction, any one of the transmission side branch bus container and the receiving side branch bus container is connected to the connecting portion positioned on the upper side, and the other is connected to the connecting portion positioned on the lower side, and a transmission side power cable terminal container or a receiving side power cable terminal container is arranged at a position deviated horizontally from the axis of the transmission side branch bus container or the receiving side branch bus container.Type: ApplicationFiled: September 6, 2002Publication date: July 10, 2003Inventors: Shunji Itou, Kazuhiro Fujii, Yoshiaki Inami, Katsuyuki Takada
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Patent number: 6572131Abstract: A bicycle brake device is coupled to a bicycle frame section, which includes one or more bicycle brake mounting structures. The bicycle frame section can be either a portion of a front fork or rear fork of a bicycle. The brake device is preferably a caliper brake device such as a cantilever brake device, a side pull brake device, or a center pull brake device. The caliper brake device has a pair of brake arms, which are pivotally coupled to either the front fork or rear fork for selectively engaging the rim of the bicycle wheel. In certain embodiments, the bicycle brake mounting structures are U-shaped brackets, which are fixedly coupled to the frame member or members. In other embodiments, the bicycle brake mounting structures are formed by a pair of separate tubular frame members, which are fixedly coupled top the remainder of the bicycle frame section.Type: GrantFiled: September 28, 2001Date of Patent: June 3, 2003Assignee: Shimano Inc.Inventor: Kazuhiro Fujii
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Publication number: 20030071436Abstract: An apparatus for controlling upshifting and downshifting of a bicycle transmission includes a running condition detecting mechanism that detects a running condition of the bicycle, a threshold value setting mechanism that sets at least one of an upshift threshold value and a downshift threshold value for the running condition, and a control mechanism. The control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding upshift threshold value and downshift threshold value for a first predetermined time interval. In another embodiment, the control mechanism provides a signal that commands at least one of an upshift and a downshift when the running condition is beyond the corresponding one of the upshift threshold value and the downshift threshold value at both a first detection and a second detection, wherein the second detection occurs after the first detection.Type: ApplicationFiled: October 8, 2002Publication date: April 17, 2003Applicant: Shimano, Inc.Inventor: Kazuhiro Fujii