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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Patent number: 8931365Abstract: A bicycle control device that includes a bracket configured to be mounted to a handlebar, a first lever pivotally mounted to the bracket and defining a first pivot axis, a second lever that includes a first user contact part pivotally mounted to the first lever that pivots about a second axis, and a first electrical switch mounted to one of the first lever and the second lever. The first electrical switch is operated in response to pivotal movement of the second lever about the second axis. The first pivot axis is positioned between the second pivot axis and the first user contact part.Type: GrantFiled: January 31, 2012Date of Patent: January 13, 2015Assignee: Shimano Inc.Inventors: Kazuhiro Fujii, Akinobu Uno, Takuro Jinbu
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Patent number: 8906528Abstract: A bicycle electric power source assembly comprises a tubular member, an electric power source member and a restricting member. The tubular member includes an inner peripheral surface, an outer peripheral surface and a through hole that passes through the tubular member between the inner peripheral surface and the outer peripheral surface. The electric power source member is disposed inside the tubular member. The electric power source member includes a restriction accepting part. The restricting member is disposed in the through hole. The restricting member includes a restricting part that engages with the restriction accepting part to restrict relative movement of the electric power source member with respect to the tubular member in an axial direction of the tabular member.Type: GrantFiled: January 16, 2013Date of Patent: December 9, 2014Assignee: Shimano Inc.Inventors: Kazuhiro Fujii, Takafumi Katsura
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Publication number: 20140220391Abstract: A power source apparatus provided with a battery stack having a plurality of rectangular shaped rechargeable battery cells stacked together, a circuit board carrying electronic circuitry electrically connected with the rechargeable battery cells, a circuit board holder disposed on the upper surface of the battery stack that establishes circuit board storage space to hold the circuit board, and a conducting shield plate installed on top of the circuit board holder that closes-off at least the upper surface of the circuit board storage space holding the circuit board inside.Type: ApplicationFiled: August 22, 2012Publication date: August 7, 2014Applicant: Sanyo Electric Co., Ltd.,Inventors: Kazuhiro Fujii, Takashi Seto
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Publication number: 20140014419Abstract: A power supply device includes a battery block that includes battery cells, and fasteners that securely hold the battery block. Each of the cells includes an exterior container, a wound electrode, a sealing plate, and a connector. The container has a rectangular exterior shape, and opens on one face. The electrode includes electrode and separator sheets that are wound so that the electrode and separator sheets are alternately superposed on each other. The sealing plate closes the opening of the container. The connector is fastened to the sealing plate and electrically connected to the electrode. The electrode has a thickness smaller than the opening width of the container. The electrode is suspended by connectors so that the electrode is spaced away from the bottom of the container. The fastener securely holds the battery block so that the electrodes are interposed between the interior surfaces of the containers.Type: ApplicationFiled: July 16, 2012Publication date: January 16, 2014Inventors: Kazuhiro FUJII, Takashi Seto, Mitsutoshi TAJIMA
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Publication number: 20130192407Abstract: A bicycle control device that includes a bracket configured to be mounted to a handlebar, a first lever pivotally mounted to the bracket and defining a first pivot axis, a second lever that includes a first user contact part pivotally mounted to the first lever that pivots about a second axis, and a first electrical switch mounted to one of the first lever and the second lever. The first electrical switch is operated in response to pivotal movement of the second lever about the second axis. The first pivot axis is positioned between the second pivot axis and the first user contact part.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Applicant: SHIMANO INC.Inventors: Kazuhiro FUJII, Akinobu UNO, Takuro JINBU
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Publication number: 20130147153Abstract: An electric power storage holder is inserted in a seat tube of a bicycle frame and holds an electric power storage member. The electric power storage holder includes a restricting section and a holding section. The restricting section contacts an end edge of an open end section of a seat tube to restrict axial movement of the holder in one of axial directions of the seat tube, the one of the axial directions being a direction in which the seat tithe extends. The holding section holds the electric power storage member.Type: ApplicationFiled: August 30, 2012Publication date: June 13, 2013Applicant: SHIMANO INC.Inventors: Kazuhiro FUJII, Takafumi KATSURA
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Patent number: 8408526Abstract: A carburetor with a starting fuel supply mechanism which additionally supplies a starting fuel at the start of an engine includes a choke valve in suction passages extending through a main body; and a starting fuel supply path disposed as a bypass of a main fuel passage to connect a float chamber to the suction passages, the starting fuel supply path being provided with an opening/closing valve opened by interlocking with the closing operation of the choke valve, and a valve body of the choke valve which performs the closing operation presses valve opening/closing device while abutting on one end of the valve opening/closing device, to open the opening/closing valve of the starting fuel supply path, so that the starting fuel can be prepared to be supplied.Type: GrantFiled: June 7, 2010Date of Patent: April 2, 2013Assignee: Nikki Co., Ltd.Inventor: Kazuhiro Fujii
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Patent number: 8297143Abstract: An electrical bicycle shift control device is provided with a base member, a first shift operating member and a second shift operating member. The handlebar mounting portion is configured to be fixedly mounted to a free end of a bicycle handlebar. The base member includes a handlebar mounting portion that is configured to be fixedly mounted a handlebar. The first shift operating member is pivotally coupled the base member from a rest position to a shift position in a first shift operating direction. The second shift operating member is mounted on the first shift operating member to move with the first shift operating member with respect to the base member. The second shift operating member is independently movable relative the first shift operating member from a rest position to a shift position in a second shift operating direction that is different to the first shift operating direction.Type: GrantFiled: May 19, 2009Date of Patent: October 30, 2012Assignee: Shimano Inc.Inventors: Kazuhiro Fujii, Akinobu Uno
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Patent number: 8282519Abstract: An electric derailleur motor unit is provided for a motorized derailleur assembly. The electric derailleur motor unit has a derailleur motor support, a derailleur motor, a drive train and an output shaft. The derailleur motor is mounted to the derailleur motor support and has a driving shaft. The drive train has at least one intermediate gear operatively coupled to the driving shaft of the derailleur motor and a worm gear operatively coupled to the intermediate gear such that rotation of the driving shaft of the derailleur motor rotates the intermediate gear which in turn rotates the worm gear. The output shaft is operatively coupled to the derailleur motor and rotatably supported on the derailleur motor support. The output shaft has an output gear engaged with the worm gear of the drive train.Type: GrantFiled: January 17, 2008Date of Patent: October 9, 2012Assignee: Shimano Inc.Inventors: Tadashi Ichida, Kazuhiro Fujii
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Patent number: 8220679Abstract: A bicycle battery holder assembly includes a terminal support portion and a pair of seal members. The terminal support portion has a pair of electrical terminals extending therefrom. The pair of electrical terminals are configured to extend into corresponding terminal receiving portions of a battery. The seal members extend around respective ones of the electrical terminals.Type: GrantFiled: October 11, 2006Date of Patent: July 17, 2012Assignee: Shimano Inc.Inventors: Fumiaki Yoshida, Kazuhiro Fujii
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Patent number: 8212426Abstract: A bicycle electrical wiring unit is provided with a junction housing, a wiring junction and a cable winding structure. The wiring junction is mounted to the junction housing for connecting at least two electrical cables. The cable winding structure is disposed on the junction housing with the cable winding structure including at least one electrical cable holder for selectively retaining different lengths of an intermediate section of a first electrical cable of the electrical cables to the junction housing.Type: GrantFiled: April 21, 2008Date of Patent: July 3, 2012Assignee: Shimano Inc.Inventors: Kenji Nakayama, Kazuhiro Fujii
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Patent number: 7998610Abstract: An electric power source containing a plurality of batteries stacked in two or more tiers in a battery case, which is provided with an intermediary duct between a first sub holder case and a second sub holder case. A first outer duct is located outside the first sub holder case and a second outer duct is located outside the second sub holder case. The power source is so designed that cooling air is blown to the intermediary duct, the holder case and the outer duct, thus cooling the batteries in the holder case. Further, the power source has a partition disposed inside the intermediary duct, with a first intermediary sub duct being connected to the first sub holder case and a second intermediary duct being connected to the second sub holder case.Type: GrantFiled: July 30, 2007Date of Patent: August 16, 2011Assignee: Sanyo Electric Co., Ltd.Inventor: Kazuhiro Fujii
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Patent number: 7947914Abstract: A bicycle shift operating device is provided with a mounting part, a first operating member and a first signal generator. The first operating member is movable from a first operation start position such that the first operating member returns to the first operation start position upon completion of a shifting operation. The first signal generator generates a signal for changing a shift position of the bicycle shift operating device by one shift position in a first direction from a current shift position in response to the first operating member being moved from the first operation start position to a first position. The first signal generator generates a signal for changing the shift position by two shift positions from the current shift position in response to the first operating member being moved from the first operation start position to a second position located beyond the first position.Type: GrantFiled: July 11, 2007Date of Patent: May 24, 2011Assignee: Shimano Inc.Inventors: Haruyuki Takebayashi, Kazuhiro Fujii
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Patent number: 7942768Abstract: A derailleur includes a motor that drives a drive member, a driven member driven by the drive member, and a clutch having a first element that disengages from a second element when substantial resistance exists in a power transmission path between the drive member and the driven member. An apparatus for controlling the derailleur comprises a re-engage command receiving circuit and a re-engagement circuit, wherein the re-engage command receiving circuit receives a re-engage command signal to re-engage the first element with the second element when the first element is disengaged from the second element, and the re-engagement circuit re-engages the first element with the second element in response to the re-engage command signal.Type: GrantFiled: January 28, 2008Date of Patent: May 17, 2011Assignee: Shimano, Inc.Inventors: Ryuichirou Takamoto, Kazuhiro Fujii, Masahiko Fukuda
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Patent number: 7922612Abstract: A power supply structure for a bicycle basically includes a battery configured to be supported on a frame of the bicycle, a junction attachable to the frame of the bicycle and first, second, third and fourth cable portions. The first cable portion extends between the junction and the battery providing an electrical connection therebetween. The second cable portion extends between the junction and a bicycle shifter mechanism connecting end providing an electrical connection therebetween. The third cable portion extends between the junction and a bicycle front derailleur connecting end providing an electrical connection therebetween. The fourth cable portion extends between the junction and a bicycle rear derailleur connecting end providing an electrical connection therebetween.Type: GrantFiled: January 30, 2009Date of Patent: April 12, 2011Assignee: Shimano Inc.Inventors: Fumiaki Yoshida, Kazuhiro Fujii
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Patent number: 7908940Abstract: A bar end electric shifter is provided with a handlebar mounting portion, an electrical switch housing portion, a first electrical shift operating member and a second electrical shift operating member. The handlebar mounting portion is configured to be fixedly mounted to a free end of a bicycle handlebar. The electrical switch housing portion extends longitudinally from the handlebar mounting portion. The electrical switch housing portion has first and second lateral sides with a center axis of the free end of the handlebar extends longitudinally through the electrical switch housing portion when the handlebar mounting portion is mounted to the free end of the bicycle handlebar. The first electrical shift operating member is located on one of the lateral sides of the electrical switch housing portion. The second electrical shift operating member is located on one of the lateral sides of the electrical switch housing portion.Type: GrantFiled: March 24, 2008Date of Patent: March 22, 2011Assignee: Shimano Inc.Inventors: Kazuyuki Naka, Kazuhiro Fujii, Toshio Tetsuka
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Patent number: 7874567Abstract: A bicycle shifting control apparatus controls an electrical power supplied from a power supply to first and second gear shifting devices that are operated by first and second gear shift operating devices, respectively. The bicycle shifting control apparatus includes a first power supply sensor and a controller. The first power supply sensor detects a power level of the power supply. The controller receives a power level signal from the first power supply sensor. The controller performs a stopping operation of the first gear shifting device in response to the first power supply sensor detecting the power level of the power supply being below a first prescribed power level, but the controller transmits a second gear shift signal from the second gear shift operating device to the second gear shifting device to perform a second shifting operation of the second gear shifting device.Type: GrantFiled: March 2, 2009Date of Patent: January 25, 2011Assignee: Shimano Inc.Inventors: Tadashi Ichida, Takumi Onogi, Kazuhiro Fujii, Masahiko Fukuda, Haruyuki Takebayashi, Ryuichiro Takamoto
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Publication number: 20110011197Abstract: A bar end electric shifter is provided for bicycle. The bar end electric shifter has a base member, a brake lever and a shift operating member. The base member includes a handlebar mounting portion and a brake lever mounting portion. The handlebar mounting portion is configured to be fixedly mounted to a free end of a handlebar. The brake lever is pivotally disposed on the brake lever mounting portion about a brake pivot axis. The brake lever includes an elongated brake operating portion extending from the brake pivot axis and a proximal portion adjacent to the brake pivot axis. The shift operating member is disposed on the proximal portion of the brake lever to move therewith.Type: ApplicationFiled: July 16, 2009Publication date: January 20, 2011Applicant: SHIMANO INC.Inventors: Kiwame OKU, Kazuhiro FUJII
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Publication number: 20100320625Abstract: A carburetor 1 with a starting fuel supply mechanism 6 which additionally supplies a starting fuel at the start of an engine includes a choke valve in suction passages 4 and 4 extending through a main body 2; and a starting fuel supply path disposed as a bypass of a main fuel passage to connect a float chamber 3a to the suction passages 4 and 4, the starting fuel supply path being provided with an opening/closing valve opened by interlocking with the closing operation of the choke valve, and a valve body 5 of the choke valve which performs the closing operation presses valve opening/closing means 61 while abutting on one end of the valve opening/closing means 61, to open the opening/closing valve of the starting fuel supply path, so that the starting fuel can be prepared to be supplied.Type: ApplicationFiled: June 7, 2010Publication date: December 23, 2010Applicant: NIKKI CO., LTD.Inventor: Kazuhiro Fujii
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Patent number: 7841255Abstract: An electrical bicycle shift control device is provided that includes a handlebar mounting portion and an electrical shift control switch portion. The handlebar mounting portion is configured to be fixedly mounted in a free end of a handlebar. The electrical shift control switch portion is fixedly mounted to the handlebar mounting portion. The electrical shift control switch portion includes an operating member arranged and configured to be selectively moved relative to the handlebar mounting portion between a neutral position and a first actuating position.Type: GrantFiled: January 15, 2008Date of Patent: November 30, 2010Assignee: Shimano Inc.Inventor: Kazuhiro Fujii