Patents by Inventor Daisuke Mizuno
Daisuke Mizuno 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: 20170022583Abstract: A steel material for highly deformable line pipes that has superior strain aging resistance, superior HIC resistance, and a metallographic structure including ferrite, bainite, and martensite-austenite constituent. The area fraction of the martensite-austenite constituent is 0.5 to 5.0%, and the difference in hardness between the ferrite and the bainite is 60 or more in terms of Vickers hardness. Additionally, the steel material has a uniform elongation of 9% or more and a yield ratio of 90% or less both before a strain aging treatment at a temperature of 300° C. or lower and after the strain aging treatment.Type: ApplicationFiled: March 26, 2015Publication date: January 26, 2017Applicant: JFE STEEL CORPORATIONInventors: Kyono YASUDA, Daisuke MIZUNO, Haruo NAKAMICHI, Nobuyuki ISHIKAWA
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Publication number: 20170022590Abstract: A steel material for highly deformable line pipes that has superior strain aging resistance, superior HIC resistance, and a metallographic structure composed mainly of ferrite and bainite. The total area fraction of the ferrite and the bainite is 90% or more, and the difference in hardness between the ferrite and the bainite is 70 or more in terms of Vickers hardness. Additionally, the steel material has a uniform elongation of 9% or more and a yield ratio of 90% or less both before a strain aging treatment at a temperature of 300° C. or lower and after the strain aging treatment.Type: ApplicationFiled: March 26, 2015Publication date: January 26, 2017Applicant: JFE STEEL CORPORATIONInventors: Kyono YASUDA, Daisuke MIZUNO, Haruo NAKAMICHI, Nobuyuki ISHIKAWA
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Patent number: 9518550Abstract: Since a pinion gear unit which rotates according to the rotation of an output rotation shaft driven by the motor unit, a pushing mechanism which moves the pinion gear unit towards an engagement location of the pinion gear and an engine starting gear, and a bracket which includes a bracket main body unit which supports the motor unit and the pushing mechanism and a nose unit which extends from the bracket main body unit to a side opposite to the motor unit and rotatably bears a tip portion of the output rotation shaft on a side opposite to the motor unit, and which is attached to an engine side are included, a first stopper unit which restricts the movement of the rotation member to the direction of the engine starting gear is provided on the output rotation shaft, a second stopper unit which restricts the movement of the pinion gears to the direction of the engine starting gear by pushing and biasing of the elastic member is provided on the rotation member, and positioning the first stopper unit is positionedType: GrantFiled: March 31, 2011Date of Patent: December 13, 2016Assignee: Mitsubishi Electric CorporationInventors: Masami Abe, Koichiro Kamei, Kazuhiro Odahara, Naohito Kaneda, Daisuke Mizuno
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Patent number: 9512812Abstract: It is possible to obtain an engine starting device in which, at the time of initial engagement of a first pinion gear and an engine starting gear, in a case where the first pinion gear collides with the engine starting gear, the first pinion gear is inclined with respect to the second pinion gear, a void having a predetermined size for expanding the inclined state is formed between a surface of an end surface portion of the first pinion gear on the side of an end surface portion of the second pinion gear, and a surface of an end surface portion of the second pinion gear on the side of the end surface portion of the first pinion gear, even in a case where any one of the rotation speed of the engine starting gear and the rotation speed of the pinion gear is larger than the other, rotation synchronization of the engine starting gear and the pinion gear and phase focusing of the teeth between the engine starting gear and the pinion gear is further rapidly and further reliably performed at the time when the engineType: GrantFiled: March 31, 2011Date of Patent: December 6, 2016Assignee: Mitsubishi Electric CorporationInventors: Kazuhiro Odahara, Koichiro Kamei, Daisuke Mizuno, Masami Abe, Naohito Kaneda
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Publication number: 20160316177Abstract: In order to reduce a possibility that it is not straightforward to preview data of a photograph taken on a camera terminal and the data of a photograph taken be leaked due to loss of the camera terminal or the like, a terminal control means for transmitting data of a photograph with a prescribed identifier or a photograph display request signal with the prescribed identifier in recognizable state, and a display means for displaying photograph data are provided.Type: ApplicationFiled: December 12, 2014Publication date: October 27, 2016Applicant: NEC CorporationInventor: Daisuke MIZUNO
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Patent number: 9334845Abstract: The engine starting device includes a pinion unit which is spline-coupled to an output shaft side of a starter motor to slide in an axial direction, the pinion unit including a one-way clutch which spins for rotation in the same direction as that of rotation of the engine, and a pushing mechanism for moving the pinion unit to a position in which the pinion unit comes into meshing engagement with a ring gear. A pinion gear of the pinion unit is movable in the axial direction as a single body, and includes a chamfered portion having a curved surface along a tooth surface on a non-torque transmitting surface side and a large length in the axial direction, the chamfered portion being provided to a ring-gear side distal end portion of the tooth surface on the non-torque transmitting surface side.Type: GrantFiled: June 11, 2013Date of Patent: May 10, 2016Assignee: Mitsubishi Electric CorporationInventors: Daisuke Mizuno, Akihiko Imagi, Hiroaki Kitano, Koichiro Kamei, Kazuhiro Odahara, Masami Abe
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Patent number: 9267479Abstract: Provided is an engine starting device, including: starter control means for causing, when the restart condition is established during a period in which a meshing inhibition condition for a ring gear and a pinion gear is established, the pinion gear and the ring gear to mesh with each other after the meshing inhibition condition is released, thereby restarting the engine. The starter control means determines the meshing permission condition and the meshing inhibition condition based on at least an engine rotation speed, and determines the release of the meshing inhibition condition before the engine completely stops based on at least one of the engine rotation speed and an elapsed time after the establishment of the meshing inhibition condition.Type: GrantFiled: July 24, 2012Date of Patent: February 23, 2016Assignee: Mitsubishi Electric CorporationInventors: Hiroaki Kitano, Daisuke Mizuno, Yuhei Tsukahara, Osamu Ishikawa, Takeru Okabe, Koichiro Kamei
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Patent number: 9255561Abstract: The engine starting device includes a starter motor, a pinion portion, a pushing mechanism for pushing a pinion gear of the pinion portion to a position at which the pinion gear comes into meshing engagement with a ring gear, and an integrated switch for operating a motor-energization switch to pull a plunger after the pinion gear is pushed, by configuring a switch for actuating the pushing mechanism and turning ON/OFF an energization current to the starter motor by a single plunger coil. When a restart request is issued after an engine stop is requested and therefore the integrated switch is placed in an ON state, operation timing of the pushing mechanism and coil-operation timing of the plunger coil are set so that the starter motor avoids operating until the pinion gear comes into contact or meshing engagement with the ring gear.Type: GrantFiled: December 6, 2011Date of Patent: February 9, 2016Assignee: Mitsubishi Electric CorporationInventors: Daisuke Mizuno, Haruhiko Shimoji, Koichiro Kamei, Masami Abe, Kazuhiro Odahara, Hiroaki Kitano
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Patent number: 9249770Abstract: The engine starter includes: a starter motor; a pinion unit (30) for sliding in an axial direction on an output shaft of the starter motor; and a ring gear (100) which meshes with a pinion pushed out by a push-out mechanism (60) and receives a transmission of a rotational force of the starter motor to thereby start an engine, and the pinion portion (30) includes a pinion gear divided in the axial direction into two pinion gears which are a first pinion gear (35) having a protruded shape for synchronization, for first colliding with the ring gear upon start of meshing with the ring gear, and a second pinion gear (34) for serving to transmit the rotational force after the meshing.Type: GrantFiled: July 27, 2011Date of Patent: February 2, 2016Assignee: Mitsubishi Electric CorporationInventors: Daisuke Mizuno, Haruhiko Shimoji, Koichiro Kamei, Masami Abe, Kazuhiro Odahara, Masahiko Kurishige, Hiroaki Kitano, Yuhei Tsukahara, Masahiro Iezawa
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Patent number: 9175657Abstract: A pinion gear unit includes a rotation member rotating according to the rotation of a output shaft. A first pinion gear fit to the rotation member through a first serration unit rotates with, and also moves with the rotation member if the pinion gear unit moves towards an engagement location with an engine starting gear. A second pinion gear is fit to the rotation member adjacent to the first pinion gear through a second serration unit, rotates with and moves with the rotation member if the pinion gear unit further moves towards the engagement location, and engages with the starting gear later than the first pinion gear, where the first pinion gear engages with the engine starting gear. Fitting is performed by the first and second serration units so that phases of teeth of the first and second pinion gears in a circumferential direction correspond with each other.Type: GrantFiled: March 31, 2011Date of Patent: November 3, 2015Assignee: Mitsubishi Electric CorporationInventors: Naohito Kaneda, Daisuke Mizuno, Koichiro Kamei, Kazuhiro Odahara, Masami Abe
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Publication number: 20150260144Abstract: The engine starter includes a pinion-mobile component which is linked to an output shaft by a helical spline and can be slid in a shaft direction, in a state where the pinion-mobile component includes; an overrunning clutch which is idled when the pinion gear, which is engaged to the ring gear, is driven by the engine via the ring gear so as to be rotated at a rotational speed which is higher than a rotational speed of the output shaft; and a breaking mechanism in which the overrunning clutch breaks a transmission of a torque, which is generated in accordance with a rotation of the motor and is transmitted to the ring gear, when a value of the torque is a predetermined condition value with respect to a direction where the torque is transmitted to the ring gear.Type: ApplicationFiled: July 23, 2014Publication date: September 17, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshihiro SASAKI, Daisuke MIZUNO, Hiroaki KITANO, Koichiro KAMEI, Kazuhiro ODAHARA, Takenobu MATSUBARA
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Publication number: 20150159617Abstract: Since a pinion gear unit which rotates according to the rotation of an output rotation shaft driven by the motor unit, a pushing mechanism which moves the pinion gear unit towards an engagement location of the pinion gear and an engine starting gear, and a bracket which includes a bracket main body unit which supports the motor unit and the pushing mechanism and a nose unit which extends from the bracket main body unit to a side opposite to the motor unit and rotatably bears a tip portion of the output rotation shaft on a side opposite to the motor unit, and which is attached to an engine side are included, a first stopper unit which restricts the movement of the rotation member to the direction of the engine starting gear is provided on the output rotation shaft, a second stopper unit which restricts the movement of the pinion gears to the direction of the engine starting gear by pushing and biasing of the elastic member is provided on the rotation member, and positioning the first stopper unit is positionedType: ApplicationFiled: January 13, 2015Publication date: June 11, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masami ABE, Koichiro KAMEI, Kazuhiro ODAHARA, Naohito KANEDA, Daisuke MIZUNO
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Publication number: 20150096535Abstract: The engine starting device for stopping, when an engine automatic stop condition is satisfied, fuel injection to the engine to automatically stop the engine, and for thereafter restarting the engine when an engine restart condition is satisfied, includes: a ring gear coupled to a crankshaft of the engine; a starter motor rotated by a current supply; a pinion gear for transmitting the rotation of the starter motor to the ring gear; a pinion gear moving part for moving the pinion gear toward the ring gear by a current supply, thereby meshing the pinion gear with the ring gear; and a fuel injection control part for restarting the fuel injection so that combustion is generated in a predetermined compression cylinder after the engine restart condition is satisfied and after the pinion gear moving part starts the movement of the pinion gear.Type: ApplicationFiled: March 19, 2013Publication date: April 9, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroaki Kitano, Daisuke Mizuno, Osamu Ishikawa, Takeru Okabe, Koichiro Kamei
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Patent number: 8757120Abstract: An engine starting device for an automatic idling stop system includes: a crank angle sensor for detecting a crank angle of an engine; a ring gear connected to a crankshaft of the engine, for transmitting rotation of the engine; ring gear rpm detecting section; a starter motor for starting the engine; a pinion gear for transmitting rotation of the starter motor to the ring gear; pinion-gear push-out section for pushing out the pinion gear into meshing engagement with the ring gear; and pinion gear push-out control section for driving the pinion-gear push-out section to bring the pinion gear and the ring gear into meshing engagement when the ring gear rpm detected by the ring gear rotational speed detection section becomes smaller than a threshold value which is determined by at least one of the crank angle, a gear range, and a restart condition.Type: GrantFiled: April 15, 2010Date of Patent: June 24, 2014Assignee: Mitsubishi Electric CorporationInventors: Hiroaki Kitano, Masahiko Kurishige, Daisuke Mizuno, Koichiro Kamei, Shiro Yonezawa, Kazuhiro Odahara, Naohito Kaneda
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Publication number: 20140060247Abstract: The engine starting device includes a pinion unit which is spline-coupled to an output shaft side of a starter motor to slide in an axial direction, the pinion unit including a one-way clutch which spins for rotation in the same direction as that of rotation of the engine, and a pushing mechanism for moving the pinion unit to a position in which the pinion unit comes into meshing engagement with a ring gear. A pinion gear of the pinion unit is movable in the axial direction as a single body, and includes a chamfered portion having a curved surface along a tooth surface on a non-torque transmitting surface side and a large length in the axial direction, the chamfered portion being provided to a ring-gear side distal end portion of the tooth surface on the non-torque transmitting surface side.Type: ApplicationFiled: June 11, 2013Publication date: March 6, 2014Inventors: Daisuke MIZUNO, Akihiko IMAGI, Hiroaki KITANO, Koichiro KAMEI, Kazuhiro ODAHARA, Masami ABE
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Publication number: 20130291680Abstract: It is possible to obtain an engine starting device in which, at the time of initial engagement of a first pinion gear and an engine starting gear, in a case where the first pinion gear collides with the engine starting gear, the first pinion gear is inclined with respect to the second pinion gear, a void having a predetermined size for expanding the inclined state is formed between a surface of an end surface portion of the first pinion gear on the side of an end surface portion of the second pinion gear, and a surface of an end surface portion of the second pinion gear on the side of the end surface portion of the first pinion gear, even in a case where any one of the rotation speed of the engine starting gear and the rotation speed of the pinion gear is larger than the other, rotation synchronization of the engine starting gear and the pinion gear and phase focusing of the teeth between the engine starting gear and the pinion gear is further rapidly and further reliably performed at the time when the engineType: ApplicationFiled: March 31, 2011Publication date: November 7, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuhiro Odahara, Koichiro Kamei, Daisuke Mizuno, Masami Abe, Naohito Kaneda
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Publication number: 20130291681Abstract: A pinion gear unit includes a rotation member which rotates according to the rotation of a output rotation shaft, a first pinion gear which is fit to the rotation member through a first serration unit, rotates with the rotation member according to the rotation of the output rotation shaft, and moves with the rotation member if the pinion gear unit moves towards an engagement location by a pushing mechanism, to be initially engaged with an engine starting gear, and a second pinion gear which is fit to the rotation member to be adjacent to the first pinion gear through a second serration unit, rotates with the rotation member according to the rotation of the output rotation shaft, and moves with the rotation member if the pinion gear unit further moves towards the engagement location, to be engaged with the engine starting gear later than the first pinion gear, in a state where the first pinion gear is engaged with the engine starting gear, and the fitting is performed by the first and second serration units soType: ApplicationFiled: March 31, 2011Publication date: November 7, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Naohito Kaneda, Daisuke Mizuno, Koichiro Kamei, Kazuhiro Odahara, Masami Abe
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Publication number: 20130289855Abstract: Provided is an engine starting device, including: starter control means for causing, when the restart condition is established during a period in which a meshing inhibition condition for a ring gear and a pinion gear is established, the pinion gear and the ring gear to mesh with each other after the meshing inhibition condition is released, thereby restarting the engine. The starter control means determines the meshing permission condition and the meshing inhibition condition based on at least an engine rotation speed, and determines the release of the meshing inhibition condition before the engine completely stops based on at least one of the engine rotation speed and an elapsed time after the establishment of the meshing inhibition condition.Type: ApplicationFiled: July 24, 2012Publication date: October 31, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroaki Kitano, Daisuke Mizuno, Yuhei Tsukahara, Osamu Ishikawa, Takeru Okabe, Koichiro Kamei
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Publication number: 20130276578Abstract: The engine starting device includes a starter motor, a pinion portion, a pushing mechanism for pushing a pinion gear of the pinion portion to a position at which the pinion gear comes into meshing engagement with a ring gear, and an integrated switch for operating a motor-energization switch to pull a plunger after the pinion gear is pushed, by configuring a switch for actuating the pushing mechanism and turning ON/OFF an energization current to the starter motor by a single plunger coil. When a restart request is issued after an engine stop is requested and therefore the integrated switch is placed in an ON state, operation timing of the pushing mechanism and coil-operation timing of the plunger coil are set so that the starter motor avoids operating until the pinion gear comes into contact or meshing engagement with the ring gear.Type: ApplicationFiled: December 6, 2011Publication date: October 24, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Daisuke Mizuno, Haruhiko Shimoji, Koichiro Kamei, Masami Abe, Kazuhiro Odahara, Hiroaki Kitano
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Publication number: 20130276579Abstract: Since a pinion gear unit which rotates according to the rotation of an output rotation shaft driven by the motor unit, a pushing mechanism which moves the pinion gear unit towards an engagement location of the pinion gear and an engine starting gear, and a bracket which includes a bracket main body unit which supports the motor unit and the pushing mechanism and a nose unit which extends from the bracket main body unit to a side opposite to the motor unit and rotatably bears a tip portion of the output rotation shaft on a side opposite to the motor unit, and which is attached to an engine side are included, a first stopper unit which restricts the movement of the rotation member to the direction of the engine starting gear is provided on the output rotation shaft, a second stopper unit which restricts the movement of the pinion gears to the direction of the engine starting gear by pushing and biasing of the elastic member is provided on the rotation member, and positioning the first stopper unit is positionedType: ApplicationFiled: March 31, 2011Publication date: October 24, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masami Abe, Koichiro Kamei, Kazuhiro Odahara, Naohito Kaneda, Daisuke Mizuno