Patents by Inventor Yoshiaki Ando
Yoshiaki Ando 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: 20180010653Abstract: A rotor cover is provided that includes different portions and is configured to meet requirements of each portion. The rotor cover includes a positioning portion that is positioned relative to a bicycle frame or a disc brake rotor and a cover portion that is coupled to the positioning portion to cover the disc brake rotor. The cover portion and the positioning portion include different materials with respect to one another.Type: ApplicationFiled: June 27, 2017Publication date: January 11, 2018Inventors: Etsuyoshi WATARAI, Takashi ADACHI, Yoshiaki ANDO, Takafumi NISHINO, Osamu KARIYAMA, Nobuyoshi FUJII, Masahiro NAKAKURA
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Publication number: 20170073038Abstract: A bicycle bottom bracket assembly having a rotational central axis includes a support member, a bearing unit and a radially inward force reducing structure. The support member includes a hanger mounting portion and a bearing mounting portion. The bearing mounting portion is configured to be at least partly positioned within a hanger part of a bicycle frame. The bearing unit includes an outer race, an inner race and at least one roller element disposed between the outer and inner races in a radial direction with respect to the rotational central axis. The outer race is fixed to the bearing mounting portion of the support member. The radially inward force reducing structure reduces a radially inward force being transmitted to the bearing unit.Type: ApplicationFiled: November 4, 2016Publication date: March 16, 2017Inventors: Shingo SHIRAISHI, Takashi FURUYA, Etsuyoshi WATARAI, Yoshiaki ANDO
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Publication number: 20160368562Abstract: A bicycle bottom bracket assembly having a rotational central axis includes a support member, a bearing unit and a radially inward force reducing structure. The support member includes a hanger mounting portion and a bearing mounting portion. The bearing mounting portion is configured to be at least partly positioned within a hanger part of a bicycle frame. The bearing unit includes an outer race, an inner race and at least one roller element disposed between the outer and inner races in a radial direction with respect to the rotational central axis. The outer race is fixed to the bearing mounting portion of the support member. The radially inward force reducing structure reduces a radially inward force being transmitted to the bearing unit.Type: ApplicationFiled: June 22, 2015Publication date: December 22, 2016Inventors: Shingo SHIRAISHI, Takashi FURUYA, Etsuyoshi WATARAI, Yoshiaki ANDO
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Patent number: 9517811Abstract: A bicycle bottom bracket assembly having a rotational central axis includes a support member, a bearing unit and a radially inward force reducing structure. The support member includes a hanger mounting portion and a bearing mounting portion. The bearing mounting portion is configured to be at least partly positioned within a hanger part of a bicycle frame. The bearing unit includes an outer race, an inner race and at least one roller element disposed between the outer and inner races in a radial direction with respect to the rotational central axis. The outer race is fixed to the bearing mounting portion of the support member. The radially inward force reducing structure reduces a radially inward force being transmitted to the bearing unit.Type: GrantFiled: June 22, 2015Date of Patent: December 13, 2016Assignee: Shimano Inc.Inventors: Shingo Shiraishi, Takashi Furuya, Etsuyoshi Watarai, Yoshiaki Ando
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Patent number: 9366305Abstract: In a hydrostatic fluid guide device, a damping mechanism is provided. A fluid is supplied to the damping mechanism by a hydrostatic pressure caused by natural fall, instead of being pressurized and supplied. Thus, it is possible to suppress a decrease in the pressure of the fluid in a hydrostatic fluid guide mechanism, and to position a movable body with high accuracy by setting rigidity for load support during linear movement of the movable body to a value substantially equal to a design value.Type: GrantFiled: November 29, 2013Date of Patent: June 14, 2016Assignee: JTEKT CORPORATIONInventors: Hiroki Yamato, Yoshiaki Ando, Masayuki Takeshima
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Patent number: 9339879Abstract: For machining a concave-convex gear in which concave teeth of the concave-convex gear and convex teeth of a mating gear are formed in a circumferential direction, to allow torque transmission to or from the mating gear, in a trajectory extracting step a relative movement trajectory of each convex tooth of the mating gear with respect to the concave-convex gear at the time when torque is transmitted is first extracted as a machining target. Then, in a machining step, the concave teeth of the concave-convex gear are machined on a disc-shaped workpiece by moving at least one of the disc-shaped workpiece and a working tool such that a relative movement trajectory of the working tool with respect to the disc-shaped workpiece coincides with the relative movement trajectory of each convex tooth of the mating gear with respect to the concave-convex gear extracted in the trajectory extracting step.Type: GrantFiled: February 10, 2011Date of Patent: May 17, 2016Assignee: JTEKT CorporationInventors: Yoshiaki Ando, Masayuki Takeshima, Ikuko Hirota
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Patent number: 9166768Abstract: In order to reduce deterioration of reception performance even further in a case of simultaneously performing transmission and reception, a transmitting circuit (20), which forms a radio transceiver (1), outputs a transmission signal (110) to be wirelessly transmitted through an antenna (10). A duplexer (30) conducts the transmission signal (110) to the antenna (10), and outputs, as differential signals (102p and 102n), a reception signal wirelessly received through the antenna (10) to a receiving circuit (40). The receiving circuit (40) regulates phases of the differential signals (102p and 102n) based on a first characteristic of the reception signal under a condition that the transmission signal (110) is not output, and a second characteristic of the reception signal under a condition that the transmission signal (110) is output.Type: GrantFiled: September 7, 2011Date of Patent: October 20, 2015Assignee: NEC CORPORATIONInventor: Yoshiaki Ando
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Patent number: 8777696Abstract: A relative movement trajectory of each convex tooth pin of a mating gear with respect to a concave-convex gear at the time when torque is transmitted between the mating gear and the concave-convex gear (nutation gear) may be expressed by a first linear axis, a second linear axis, a third linear axis, a fourth rotation axis, a fifth rotation axis and a sixth indexing axis. Then, a relative movement trajectory of each convex tooth pin of the mating gear, expressed by the first linear axis, the second linear axis, the third linear axis, the fifth rotation axis and the sixth indexing axis in the case where the fourth rotation axis is brought into coincidence with the sixth indexing axis, is calculated, and at least one of a disc-shaped workpiece and a working tool is moved on the basis of the calculated relative movement trajectory.Type: GrantFiled: February 10, 2011Date of Patent: July 15, 2014Assignee: JTEKT CorporationInventors: Yoshiaki Ando, Masayuki Takeshima, Ikuko Hirota
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Publication number: 20140158855Abstract: In a hydrostatic fluid guide device, a damping mechanism is provided. A fluid is supplied to the damping mechanism by a hydrostatic pressure caused by natural fall, instead of being pressurized and supplied. Thus, it is possible to suppress a decrease in the pressure of the fluid in a hydrostatic fluid guide mechanism, and to position a movable body with high accuracy by setting rigidity for load support during linear movement of the movable body to a value substantially equal to a design value.Type: ApplicationFiled: November 29, 2013Publication date: June 12, 2014Applicant: JTEKT CorporationInventors: Hiroki YAMATO, Yoshiaki ANDO, Masayuki TAKESHIMA
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Publication number: 20130242811Abstract: In order to reduce deterioration of reception performance even further in a case of simultaneously performing transmission and reception, a transmitting circuit (20), which forms a radio transceiver (1), outputs a transmission signal (110) to be wirelessly transmitted through an antenna (10). A duplexer (30) conducts the transmission signal (110) to the antenna (10), and outputs, as differential signals (102p and 102n), a reception signal wirelessly received through the antenna (10) to a receiving circuit (40). The receiving circuit (40) regulates phases of the differential signals (102p and 102n) based on a first characteristic of the reception signal under a condition that the transmission signal (110) is not output, and a second characteristic of the reception signal under a condition that the transmission signal (110) is output.Type: ApplicationFiled: September 7, 2011Publication date: September 19, 2013Applicant: NEC CASIO MOBILE COMMUNICATIONS LTD.Inventor: Yoshiaki Ando
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Publication number: 20130097865Abstract: A trajectory extracting step of extracting a relative movement trajectory of each convex tooth pin of a mating gear with respect to a concave-convex gear at the time when torque is transmitted between the mating gear (fixed shaft) and the concave-convex gear (nutation gear) and a machining step of, when the concave-convex gear is machined on a concave tooth forming face of a disc-shaped workpiece on which the concave teeth have not been machined, moving at least one of the disc-shaped workpiece and a working tool such that a relative movement trajectory of the working tool with respect to the disc-shaped workpiece coincides with the relative movement trajectory of each convex tooth pin with respect to the concave-convex gear, extracted in the trajectory extracting step, are included.Type: ApplicationFiled: February 10, 2011Publication date: April 25, 2013Applicant: JTEKT CORPORATIONInventors: Yoshiaki Ando, Masayuki Takeshima, Ikuko Hirota
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Patent number: 8405263Abstract: A generator hub is basically provided with a hub shaft, a generator mechanism, a connector and a positioning device. The generator mechanism is provided on the hub shaft. The connector is disposed on the hub shaft and electrically connected to the generator mechanism. The positioning device is disposed on the hub shaft, the positioning device being configured and arranged to position the connector with respect to a frame of a bicycle in a rotational direction about the hub shaft.Type: GrantFiled: October 26, 2009Date of Patent: March 26, 2013Assignee: Shimano Inc.Inventors: Yoshiaki Ando, Takeshi Takachi, Lim Puat Thiam
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Publication number: 20120309272Abstract: A relative movement trajectory of each convex tooth pin of a mating gear with respect to a concave-convex gear at the time when torque is transmitted between the mating gear and the concave-convex gear (nutation gear) may be expressed by a first linear axis, a second linear axis, a third linear axis, a fourth rotation axis, a fifth rotation axis and a sixth indexing axis. Then, a relative movement trajectory of each convex tooth pin of the mating gear, expressed by the first linear axis, the second linear axis, the third linear axis, the fifth rotation axis and the sixth indexing axis in the case where the fourth rotation axis is brought into coincidence with the sixth indexing axis, is calculated, and at least one of a disc-shaped workpiece and a working tool is moved on the basis of the calculated relative movement trajectory.Type: ApplicationFiled: February 10, 2011Publication date: December 6, 2012Applicant: JTEKT CorporationInventors: Yoshiaki Ando, Masayuki Takeshima, Ikuko Hirota
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Patent number: 8238858Abstract: In a direct-conversion type orthogonal demodulator used in a multi-band receiver, influence to signal-receiving characteristics of the receiver, caused by DC offset drift produced when a band is switched to another, is reduced. In a multi-band receiver including a plurality of orthogonal demodulators each carrying out orthogonal demodulation for each of a plurality of band inputs, a switch which selects one of outputs transmitted from the orthogonal demodulators in accordance with a band-switching control signal, and a high pass filter receiving an output transmitted from the switch, a cut-off frequency of the high pass filter is raised when a band is switched to another, to thereby shorten a convergent time of DC offset drift included in an output signal.Type: GrantFiled: January 11, 2006Date of Patent: August 7, 2012Assignee: NEC CorporationInventor: Yoshiaki Ando
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Publication number: 20100301711Abstract: A generator hub is basically provided with a hub shaft, a generator mechanism, a connector and a positioning device. The generator mechanism is provided on the hub shaft. The connector is disposed on the hub shaft and electrically connected to the generator mechanism. The positioning device is disposed on the hub shaft, the positioning device being configured and arranged to position the connector with respect to a frame of a bicycle in a rotational direction about the hub shaft.Type: ApplicationFiled: October 26, 2009Publication date: December 2, 2010Applicants: Shimano Inc., Shimano (Singapore) Pte., Ltd.Inventors: Yoshiaki ANDO, Takeshi TAKACHI, Lim Puat Thiam
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Publication number: 20090022246Abstract: In a direct-conversion type orthogonal demodulator used in a multi-band receiver, influence to signal-receiving characteristics of the receiver, caused by DC offset drift produced when a band is switched to another, is reduced. In a multi-band receiver including a plurality of orthogonal demodulators each carrying out orthogonal demodulation for each of a plurality of band inputs, a switch which selects one of outputs transmitted from the orthogonal demodulators in accordance with a band-switching control signal and a high pass filter receiving an output transmitted from the switch, a cut-off frequency of the high pass filter is raised when a band is switched to another, to thereby shorten a convergent time of DC offset drift included in an output signal.Type: ApplicationFiled: January 11, 2006Publication date: January 22, 2009Applicant: NEC CORPORATIONInventor: Yoshiaki Ando
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Patent number: 7363012Abstract: A transmission power control device which amplifies in a driver amplifier 2, and in a power amplifier 4 to which the output from the driver amplifier is inputted, so that the power of a signal to be transmitted may become predetermined target transmission power, detects an electric-current which flows to the power amplifier 4 from a power supply, and adjusts the gain of the driver amplifier 2 based on this detected electric-current.Type: GrantFiled: January 21, 2005Date of Patent: April 22, 2008Assignee: NEC CorporationInventor: Yoshiaki Ando
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Publication number: 20080004143Abstract: A bicycle sprocket assembly includes first, second and third sprockets. A first mounting portion of the first sprocket is directly connected to a second mounting portion of the second sprocket by first fasteners at circumferentially spaced apart locations. The first sprocket is supported on the second sprocket by the first fasteners and axially spaced from the second sprocket by the first fasteners. A second mounting portion of the second sprocket is directly connected to a third mounting portion of the third sprocket by second fasteners. The second sprocket is supported on the third sprocket by the second fasteners and axially spaced from the third sprocket by the second fasteners. First and second radially innermost ends of the first and second sprockets are radially spaced from and free from contact with a freewheel when the bicycle sprocket assembly is mounted to the freewheel.Type: ApplicationFiled: June 16, 2006Publication date: January 3, 2008Applicant: Shimano Inc.Inventors: Takanori Kanehisa, Yoshiaki Ando, Kenji Kamada
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Patent number: 6949040Abstract: A bicycle rear derailleur is basically provided with a base member, a link mechanism, outer and inner plate members, a guide pulley and a tension pulley. At least one of the outer and inner plate members includes a bent portion integrally formed with the at least one of the outer and inner plate members to prevent a chain from disengaging from at least one of the tension pulley and the guide pulley. The bent portion is formed by bending an inner section of the at least one of outer and inner plate members in a direction towards the other of the at least one of the outer and inner plate members. The inner section is spaced inwardly from an external peripheral edge of the at least one of the outer and inner plate members.Type: GrantFiled: February 24, 2003Date of Patent: September 27, 2005Assignee: Shimano Inc.Inventor: Yoshiaki Ando
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Patent number: RE38975Abstract: A bicycle disc brake is provided in which a support member movably couples the brake caliper to the frame of the bicycle. The bicycle disc brake caliper has a caliper housing with a single piston unit. The piston unit is movably coupled to the housing between a release position, in which the piston unit is spaced from a disc brake mounted to a wheel of a bicycle, and a braking position, in which the piston unit engages the disc brake of the bicycle wheel. The piston unit has a first friction member movably coupled between a release position and a braking position and a second friction member arranged substantially parallel to the first friction member to form a disc brake receiving space between the first and second friction members. In one embodiment, the caliper housing is movably coupled to the support member by a pivot pin. In another embodiment, the caliper housing is movably coupled to the support member by a linkage assembly.Type: GrantFiled: December 6, 2002Date of Patent: February 14, 2006Assignee: Shimano Inc.Inventors: Kanji Kirimoto, Yoshiaki Ando, Kenji Ose, Tadashi Ichida, Toshio Tetsuka, Tatsuya Matsushita