Patents by Inventor Akihiro Kamiya
Akihiro Kamiya 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: 8025042Abstract: An intake flow control device includes valve units, a drive shaft, and an actuator. The valve unit includes a housing defining an intake passage therein. A valve shaft is supported between side walls of the housing. The drive shaft connects and drives the valve shafts. The actuator is directly connected to the drive shaft so as to drive a valve mounted to the valve shaft to open or close the intake passage. The valve has a width defined between side ends of the valve, which is larger than a width defined between side walls of the intake passage located at an upstream side of the valve.Type: GrantFiled: March 20, 2009Date of Patent: September 27, 2011Assignee: Denso CorporationInventor: Akihiro Kamiya
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Publication number: 20110024946Abstract: A resin gear comprises a rim in an outer peripheral part of a plate, teeth provided on an outer periphery of the rim, a boss provided in a central part of the plate, and a circular rib between the boss and the rim. The resin gear is manufacturable by injection molding that a molten material is injected into a cavity through a plurality of gates arranged at almost equally spaced intervals circumferentially on a forming portion for the circular rib in a direction perpendicular to a side of the plate. The resin gear includes a plurality of inner thin-wall portions on the plate between the circular rib and the boss and a plurality of outer thin-wall portions on the plate between the circular rib and the rim, each of the inner thin-wall portions and the outer thin-wall portions being symmetrically shaped with respect to the radial line passing through each gate corresponding point.Type: ApplicationFiled: October 8, 2010Publication date: February 3, 2011Applicants: AISAN KOGYO KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Naoto Miyauchi, Masashi Ozeki, Yoshiyasu Yasui, Akihiro Kamiya, Hiroki Shimada
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Publication number: 20100260184Abstract: An arithmetic operation portion including a swap arithmetic operation portion which performs an arithmetic operation of swap information concerned with a path route of a packet, and a label processing portion which sets adjustment of a first label based on a result of the arithmetic operation executed by the swap arithmetic operation portion is provided in a control apparatus to thereby attain compatibility between dispersion of packet transfer load and reduction of an error rate in each link.Type: ApplicationFiled: April 8, 2010Publication date: October 14, 2010Inventors: Akihiro KAMIYA, Yasumichi Nonaka, Kazuhiro Kusama, Kenji Kataoka
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Publication number: 20090235891Abstract: An intake flow control device includes valve units, a drive shaft, and an actuator. The valve unit includes a housing defining an intake passage therein. A valve shaft is supported between side walls of the housing. The drive shaft connects and drives the valve shafts. The actuator is directly connected to the drive shaft so as to drive a valve mounted to the valve shaft to open or close the intake passage. The valve has a width defined between side ends of the valve, which is larger than a width defined between side walls of the intake passage located at an upstream side of the valve.Type: ApplicationFiled: March 20, 2009Publication date: September 24, 2009Applicant: DENSO CORPORATIONInventor: Akihiro KAMIYA
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Publication number: 20090194078Abstract: In an embodiment, conductance of electricity to a heating element (4) for heating a throttle valve (2) of an automobile engine and a peripheral section thereof is performed only during a period wherein this heating can be performed effectively. Specifically, a controller (53) receives an output signal from an air flow sensor (54), and when a quantity of intake air is equal to or less than a predetermined “intake air quantity criterion for heating”, conduction of electricity to the heating element (4) is carried out. Conversely, when the quantity of intake air is greater than this “intake air quantity criterion for heating”, conduction of electricity to the heating element 4 is prohibited.Type: ApplicationFiled: June 14, 2007Publication date: August 6, 2009Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISAN KOGYO KABUSHIKI KAISHAInventors: Tsutomu Miyazaki, Akihiro Kamiya, Naoto Miyauchi
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Patent number: 7509939Abstract: A throttle control apparatus comprises a throttle valve placed in an intake passage, a motor for driving the throttle valve, an electronic control unit (ECU) for controlling the motor, and a throttle sensor for detecting an actual opening degree of the throttle valve. The ECU determines that the throttle valve is frozen when the actual opening degree does not reach a target opening degree even after a driving time for driving the motor has exceeded a predetermined time, and then stores the actual opening degree at the time as an icing opening degree. The ECU supplies a driving duty to cause the motor to produce required driving torque for removal of icing and reverses the driving duty by open control, and controls the motor to bring an accumulated value of a deviation between the target opening degree and the icing opening degree to zero, thereby repeatedly swinging the throttle valve.Type: GrantFiled: February 13, 2007Date of Patent: March 31, 2009Assignees: Aisan Kogyo Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, Denso CorporationInventors: Hideki Asano, Katsumi Ishida, Tsutomu Miyazaki, Kazuhiro Minamitani, Shigeru Kamio, Akihiro Kamiya
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Publication number: 20080053401Abstract: A throttle device includes a resin throttle body having a bore and a throttle valve placed in the throttle body to open and close the bore. The throttle body is formed of a valve part that includes the throttle valve and a duct part that does not include the throttle valve. The valve part and the duct part are formed separately and coupled to each other. A heater and a metal collar are attached to the valve part and the duct part.Type: ApplicationFiled: August 29, 2007Publication date: March 6, 2008Applicants: AISAN KOGYO KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanobu Kondo, Akihiro Kamiya, Tsutomu Miyazaki
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Publication number: 20070186900Abstract: A throttle control apparatus comprises a throttle valve placed in an intake passage, a motor for driving the throttle valve, an electronic control unit (ECU) for controlling the motor, and a throttle sensor for detecting an actual opening degree of the throttle valve. The ECU determines that the throttle valve is frozen when the actual opening degree does not reach a target opening degree even after a driving time for driving the motor has exceeded a predetermined time, and then stores the actual opening degree at the time as an icing opening degree. The ECU supplies a driving duty to cause the motor to produce required driving torque for removal of icing and reverses the driving duty by open control, and controls the motor to bring an accumulated value of a deviation between the target opening degree and the icing opening degree to zero, thereby repeatedly swinging the throttle valve.Type: ApplicationFiled: February 13, 2007Publication date: August 16, 2007Applicants: AISAN KOGYO KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Hideki Asano, Katsumi Ishida, Tsutomu Miyazaki, Kazuhiro Minamitani, Shigeru Kamio, Akihiro Kamiya
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Publication number: 20070186710Abstract: A resin gear comprises a rim in an outer peripheral part of a plate, teeth provided on an outer periphery of the rim, a boss provided in a central part of the plate, and a circular rib between the boss and the rim. The resin gear is manufacturable by injection molding that a molten material is injected into a cavity through a plurality of gates arranged at almost equally spaced intervals circumferentially on a forming portion for the circular rib in a direction perpendicular to a side of the plate. The resin gear includes a plurality of inner thin-wall portions on the plate between the circular rib and the boss and a plurality of outer thin-wall portions on the plate between the circular rib and the rim, each of the inner thin-wall portions and the outer thin-wall portions being symmetrically shaped with respect to the radial line passing through each gate corresponding point.Type: ApplicationFiled: December 29, 2006Publication date: August 16, 2007Applicants: AISAN KOGYO KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Naoto Miyauchi, Masashi Ozeki, Yoshiyasu Yasui, Akihiro Kamiya, Hiroki Shimada
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Patent number: 7120107Abstract: An optical head is provided, which suppresses the offset in the tracking error signal.Type: GrantFiled: July 28, 2000Date of Patent: October 10, 2006Assignee: NEC CorporationInventors: Junichi Takahashi, Masahiko Satoh, Akihiro Kamiya
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Patent number: 7051707Abstract: An electronically controlled throttle control apparatus prevents a throttle valve from malfunctioning due to deterioration in sliding resistance ascribable to abrasive dust at a sliding contact portion between a valve gear of a geared reduction device and a coil spring. The outer periphery of a spring inner periphery guide is provided with a plurality of groove portions as abrasive dust removing means for removing abrasive dust at least from a sliding contact portion between the outer periphery of the spring inner periphery guide and the inner periphery of a default spring, so that individual edge portions of the plurality of groove portions can rub the inner periphery of the default spring to scrape off abrasive dust from the inner periphery of the default spring and direct the abrasive dust into the plurality of groove portions.Type: GrantFiled: March 5, 2004Date of Patent: May 30, 2006Assignee: Denso CorporationInventors: Hiroshi Tanimura, Motoki Uehama, Akihiro Kamiya, Masato Arai
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Patent number: 6986336Abstract: An electronically controlled throttle control apparatus prevents a throttle valve from malfunctioning due to deterioration in sliding resistance ascribable to abrasive dust at a sliding contact portion between a valve gear of a geared reduction device and a coil spring. The outer periphery of a spring inner periphery guide is provided with a plurality of groove portions as abrasive dust removing means for removing abrasive dust at least from a sliding contact portion between the outer periphery of the spring inner periphery guide and the inner periphery of a default spring, so that individual edge portions of the plurality of groove portions can rub the inner periphery of the default spring to scrape off abrasive dust from the inner periphery of the default spring and direct the abrasive dust into the plurality of groove portions.Type: GrantFiled: March 15, 2005Date of Patent: January 17, 2006Assignee: DENSO CorporationInventors: Hiroshi Tanimura, Motoki Uehama, Akihiro Kamiya, Masato Arai
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Publication number: 20050155576Abstract: An electronically controlled throttle control apparatus prevents a throttle valve from malfunctioning due to deterioration in sliding resistance ascribable to abrasive dust at a sliding contact portion between a valve gear of a geared reduction device and a coil spring. The outer periphery of a spring inner periphery guide is provided with a plurality of groove portions as abrasive dust removing means for removing abrasive dust at least from a sliding contact portion between the outer periphery of the spring inner periphery guide and the inner periphery of a default spring, so that individual edge portions of the plurality of groove portions can rub the inner periphery of the default spring to scrape off abrasive dust from the inner periphery of the default spring and direct the abrasive dust into the plurality of groove portions.Type: ApplicationFiled: March 15, 2005Publication date: July 21, 2005Applicant: DENSO CORPORATIONInventors: Hiroshi Tanimura, Motoki Uehama, Akihiro Kamiya, Masato Arai
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Publication number: 20040173184Abstract: An electronically controlled throttle control apparatus prevents a throttle valve from malfunctioning due to deterioration in sliding resistance ascribable to abrasive dust at a sliding contact portion between a valve gear of a geared reduction device and a coil spring. The outer periphery of a spring inner periphery guide is provided with a plurality of groove portions as abrasive dust removing means for removing abrasive dust at least from a sliding contact portion between the outer periphery of the spring inner periphery guide and the inner periphery of a default spring, so that individual edge portions of the plurality of groove portions can rub the inner periphery of the default spring to scrape off abrasive dust from the inner periphery of the default spring and direct the abrasive dust into the plurality of groove portions.Type: ApplicationFiled: March 5, 2004Publication date: September 9, 2004Applicant: DENSO CORPORATIONInventors: Hiroshi Tanimura, Motoki Uehama, Akihiro Kamiya, Masato Arai
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Tracking servo operating method, tracking servo apparatus and optical disk device provided with same
Publication number: 20040170093Abstract: A tracking servo apparatus is provided which is capable of performing correct operations even when imbalance occurs in outputs from a multi-output photodetector while an optical disk is in an unrecorded state.Type: ApplicationFiled: February 25, 2004Publication date: September 2, 2004Applicant: NEC CORPORATIONInventor: Akihiro Kamiya -
Patent number: 5436889Abstract: A multiplexed communication system for automatically setting up a multiplexed call circuit between exchanges upon occurrence of a call only when the multiplexed call circuit is required while otherwise releasing the multiplexed call circuit. The multiplexed communication system includes a plurality of exchanges, each of which includes multiplexing/demultiplexing apparatus for compressing and multiplexing data inputted from first input/output to thereby output the compressed and multiplexed data to second input/output ports and for demultiplexing and expanding data inputted from the second input/output to thereby output the demultiplexed and expanded data to the first input/output port, control information messaging apparatus for messaging control information, first detection apparatus for detecting occurrence of a compressible call, and second detection apparatus for detecting that all the calls connected to the first input/output ports have been released.Type: GrantFiled: January 15, 1993Date of Patent: July 25, 1995Assignees: Hitachi Ltd., Hitachi Software Engineering Co., Ltd.Inventors: Teruyuki Matsumoto, Kansuke Kuroyanagi, Morihiko Kurata, Akihiro Kamiya
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Patent number: 4827176Abstract: A metal vapor discharge lamp. The metal vapor discharge lamp includes an enclosed discharge tube having a pair of main electrodes mounted at spaced apart locations therein, the discharge tube including a fill of at least a metal vapor and a starting gas, a radiation source including radioactively impregnated ceramic material having a vitrified radioactive outer protection portion and an outer bulb for enclosing the discharge tube and a circuit for electrically generating an arc between the main electrodes.Type: GrantFiled: December 18, 1987Date of Patent: May 2, 1989Assignee: Kabushiki Kaisha ToshibaInventors: Shinji Inukai, Kazuo Honda, Akihiro Kamiya
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Patent number: 4800321Abstract: A high pressure sodium lamp includes an arc tube having an inner diameter greater than 12 mm. An amalgam including a prescribed quantity of sodium and mercury is sealed in the arc tube. To achieve the maximum lamp efficiency in different values of the inner diameter of the arc tube, the lamp should satisfy the following relationships:(10.sup.0.848 .phi..sup.(-0.171) log X+(0.105.phi.-10.22)<log Y<(10.sup.0.848 .phi..sup.(-0.171) log X-10.sup.1.43 .phi..sup.(-0.574)), and(-7.97 log.phi.+14.8)<log .DELTA.V<(84.7 log.phi.-84.5)where .phi. (mm) is the inner diameter of the arc tube, X (wt %) is the ratio of the quantity of sodium to the quantity of amalgam sealed in the arc tube, Y (mg/cc) is the quantity of sodium sealed in the arc tube, and .DELTA.V (v/cm) is the electric field strength when the lamp is operated.Type: GrantFiled: August 5, 1987Date of Patent: January 24, 1989Assignee: Kabushiki Kaisha ToshibaInventors: Yujiro Ike, Akihiro Yonezawa, Shinichi Ooshima, Akihiro Kamiya, Yoshio Hirose
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Patent number: 4777399Abstract: A high pressure metal vapor discharge lamp comprising a discharge tube with a pair of spaced main electrodes; a filling sealed in the discharge tube comprising a light emitting metal and a starting gas; a radioactive source comprising a radioactive substance entirely covered with an envelope of non-radioactive, heat- and corrosion-resistant material sealed inside the discharge tube, an outer tube enclosing the discharge tube, and circuit means for starting the discharge tube.Type: GrantFiled: February 10, 1982Date of Patent: October 11, 1988Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Kouichi Miyazaki, Akihiro Kamiya, Akihiro Inoue
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Patent number: 4742277Abstract: A pulse generating apparatus includes a base current supply section for generating a constant DC current having a first prescribed current level for turning on a xenon lamp, and a pulse current section for adding a pulse current having a second current level greater than the first current level and a prescribed pulse duration within a prescribed repetition period to the constant DC current. The base current supply section and pulse current section should satisfy the following equations:1.4.ltoreq.Imax/Imini.ltoreq.60.2.ltoreq.t/T.ltoreq.0.7T.ltoreq.1/40Where Imax is the sum of the first and the second prescribed current levels, Imini is the first prescribed current level, T is the prescribed repetition period, and t is the prescribed pulse duration.When the pulse current added to the DC current is supplied to a xenon lamp, the xenon lamp outputs a strong light during the pulse duration of the pulse current, and a feeble light during the absence of the pulse current.Type: GrantFiled: July 29, 1987Date of Patent: May 3, 1988Assignee: Kabushiki Kaisha ToshibaInventors: Masakazu Shibuya, Yasuki Mori, Yoshiyuki Tokuda, Yoichiro Mitsuyuki, Akihiro Kamiya