Patents by Inventor Masahiro Seguchi
Masahiro Seguchi 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: 20090072777Abstract: A speed-variable field winding type of synchronous rotary electric machine is provided, where a rotor with plural-phase windings faces a rotor with a field winding. A field current is limited to flow through the field winding in one direction thereof. A fundamental component of armature current, which corresponds a synchronizing current for producing a rotating magnetic field rotating in sync with the rotation of the rotor, is supplied to the armature windings. The synchronizing current is adjusted in frequency to change a rotor rotation speed. A pulsed rotor exciting current is supplied to the armature windings. The exciting current causes the field winding to induce the field current only during a specified current-supply duration shorter than a one cycle of the synchronizing current. The number of current-supply times for the exciting current, per electrical angle 2? and per phase, has a positive correlation with the cycle of the synchronizing current.Type: ApplicationFiled: September 17, 2008Publication date: March 19, 2009Applicant: DENSO CORPORATIONInventor: Masahiro SEGUCHI
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Publication number: 20080251349Abstract: A paper note handling apparatus includes a pay-in and pay-out mouth through which a paper note is paid in or paid out, a conveyance for conveying the paper note, a discrimination part to discriminate authenticity and denomination of the conveyed paper note, a temporary hold part to temporarily hold the paper note, a storing part to store the paper note, and a shifter to shift a position of the paper note in a widthwise direction of conveyance. The shifter rotates in a direction inclined relative to a direction of conveyance of the paper note and comes into contact with the paper note to shift the position of the paper note in the widthwise direction of conveyance.Type: ApplicationFiled: June 17, 2008Publication date: October 16, 2008Inventors: Shunsuke Hayashi, Masahiro Seguchi, Masayasu Ueno, Hidetoshi Hata, Hisanori Takemura, Junji Nishiwaki
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Patent number: 7391138Abstract: The present invention relates an electric rotating machine comprising a plurality of phase coils each composed of a plurality of partial coils each made by connecting segments each composed of an inside-slot conductor portion to be accommodated in each of slots of each of phase slot groups made in a stator core and an outside-slot conductor portion protruding from the slot. Of the plurality of partial coils constituting each of the phase coils, in each of the partial coils to be connected to an input/output terminal, its inside-slot conductor portion is accommodated in the slot other than end portions of the phase slot group in a circumferential direction of the stator core. This reduces the electric potential difference between the outside-slot conductor portion continuing thereinto and the outside-slot conductor portion of an adjacent phase coil, thereby improving the insulating performance.Type: GrantFiled: September 13, 2005Date of Patent: June 24, 2008Assignee: Denso CorporationInventor: Masahiro Seguchi
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Patent number: 7358698Abstract: A field-winding type of synchronous machine comprises a stator with an armature winding wound phase by phase, a rotor having a rotor core with a field winding wound, and a circuit enabling an armature current to pass the armature winding, the armature current corresponding to a synchronous current producing a rotation field rotating at an electrical-angle rotation speed agreeing to a rotation speed of the rotor. The synchronous machine further comprises a current suppressor and a current supplier. The current suppressor is connected to the field winging and suppresses, into a unidirectional current, an induced alternating current induced through the field winding in response to the armature current passing the armature winding. The current supplier supplies, phase by phase, to the armature winding a rotor exciting current whose waveform is different from the synchronous current only during a predetermined period of time shorter than one cycle of the synchronous current.Type: GrantFiled: June 28, 2006Date of Patent: April 15, 2008Assignee: Denso CorporationInventors: Masahiro Seguchi, Yurio Nomura, Hiroya Tsuji
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Publication number: 20080079375Abstract: A rotary electric apparatus comprise a synchronous machine of field winding type, an inverter, a DC power supply, a current flow regulator, and a controller. The DC power supply outputs first voltage of a first voltage value and second voltage of a second voltage value higher than the first voltage value. The current flow regulator regulates directions of currents flowing through a field winding by rotor exciting currents into one way, the current flow regulator being electrically connected to the field winding. The controller controls the inverter such that the inverter produces armature currents consisting of synchronized currents producing rotating fields depending on a rotating position of a rotor and rotor exciting currents different in waveforms from the synchronized currents and superposed on the synchronized currents. At least the rotor exciting currents are powered on a second voltage from the DC power supply.Type: ApplicationFiled: September 27, 2007Publication date: April 3, 2008Applicant: DENSO CORPORATIONInventor: Masahiro Seguchi
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Patent number: 7268455Abstract: A phase winding of a stator winding comprises one or more pairs of interconnected partial coil, each partial coil formed of sequentially connected U-shaped segment pairs, each pair comprising a large segment and small segment. Two segment legs, of the large and small segment respectively of such a pair, constitute first and second conductor layers of a first stator slot and have their tip portions mutually connected. The remaining two segment legs respectively constitute fourth and third conductor layers of a second slot that is distant by one pole pitch, and have their respective tip portions mutually connected.Type: GrantFiled: May 24, 2005Date of Patent: September 11, 2007Assignee: Denso CorporationInventors: Shinji Kouda, Masahiro Seguchi
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Publication number: 20060290316Abstract: A field-winding type of synchronous machine comprises a stator with an armature winding wound phase by phase, a rotor having a rotor core with a field winding wound, and a circuit enabling an armature current to pass the armature winding, the armature current corresponding to a synchronous current producing a rotation field rotating at an electrical-angle rotation speed agreeing to a rotation speed of the rotor. The synchronous machine further comprises a current suppressor and a current supplier. The current suppressor is connected to the field winging and suppresses, into a unidirectional current, an induced alternating current induced through the field winding in response to the armature current passing the armature winding. The current supplier supplies, phase by phase, to the armature winding a rotor exciting current whose waveform is different from the synchronous current only during a predetermined period of time shorter than one cycle of the synchronous current.Type: ApplicationFiled: June 28, 2006Publication date: December 28, 2006Applicant: Denso CorporationInventors: Masahiro Seguchi, Yurio Nomura, Hiroya Tsuji
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Patent number: 7135793Abstract: A stator coil includes a coil portion wound around a stator core and a terminal board serving as a bus bar array board. The coil portion is arranged by sequentially connected segment conductors. The terminal board is a molded ring plate member disposed adjacently to a head coil end of the coil portion in the axial direction and elongated in the radial direction. The turn number of the stator coil is easily adjustable by selecting an optimum one of a plurality of terminal boards.Type: GrantFiled: May 11, 2005Date of Patent: November 14, 2006Assignee: Denso CorporationInventors: Masahiro Seguchi, Shinji Kouda
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Patent number: 7091645Abstract: A concentrated-winding type stator coil unit for a rotary electric machine is provided with a stator core having a core back and teeth protruding from the core back. Plural coils are wound around the teeth respectively. Each coil is composed of, for example, a first layered coil formed by winding a coil wire in a layer around each tooth to form plural turns arranged in parallel on each tooth and a second layered coil formed by winding the coil wire in a layer to from plural turns around the first layered coil wound around each tooth. The last turn of the first layered coil continues to the first turn of the second layered coil. Both ends of the coil wire are located at and on a base potion of each of the teeth as a winding-start end and a winding-finish end of each of the coils.Type: GrantFiled: January 27, 2004Date of Patent: August 15, 2006Assignee: Denso CorporationInventors: Shigenori Yoneda, Masahiro Seguchi, Noriyasu Inomata
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Publication number: 20060103255Abstract: In a stator coil of a rotary electric machine, a first crank portion radially shifts one side of a turn portion from the other side thereof by a first length. The one side extends to one of paired straight portions, and the other side extends to the other thereof. A second crank portion radially shifts one side of a turn portion from the other side thereof by a second length. The one side extends to one of the paired straight portions, and the other side extends to the other thereof. The first length is equivalent to a radial width of the turn portion of the first segment of each set. The second length allows the second crank portion of the second segment of each of the sets to substantially overlay the first crank portion of the first segment of each set.Type: ApplicationFiled: November 18, 2005Publication date: May 18, 2006Applicant: DENSO CORPORATIONInventors: Masahiro Seguchi, Shinji Kouda, Tetsuya Gorohata
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Publication number: 20060070840Abstract: A sheet handling apparatus is proposed to be able to stably shift a position of a sheet.Type: ApplicationFiled: September 12, 2005Publication date: April 6, 2006Inventors: Shunsuke Hayashi, Masahiro Seguchi, Masayasu Ueno, Hidetoshi Hata, Hisanori Takemura, Junji Nishiwaki
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Patent number: 6998757Abstract: A compact and reliable structure of a multi-rotor synchronous machine which may be employed as a generator/motor for automotive vehicles is provided. The machine includes an outer rotor having permanent magnets, an inner rotor having permanent magnets disposed to be rotatable relative to the outer rotor, a stator core having armature coils interlinking with field magnetic fluxes produced by the outer and inner rotors, and a rotor-to-rotor relative rotation controlling mechanism. A relative angle between the outer and inner rotors is controlled within a given angular range by controlling the phase and quantity of current flowing through the armature coils to rotate the inner rotor relative to the outer rotor through the rotor-to-rotor relative rotation controlling mechanism, thereby changing the magnetic fluxes interlinking with the armature coils as needed.Type: GrantFiled: May 20, 2004Date of Patent: February 14, 2006Assignee: Denso CorporationInventors: Masahiro Seguchi, Shigenori Yoneda
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Patent number: 6995492Abstract: Three partial coils are accommodated in inphase slots arranged successively in the circumferential direction and also accommodated in the same conductor accommodation position set. Each layer coil is constituted by serially connecting these partial coils. Respective layer coils are connected in parallel to each other to form a phase winding.Type: GrantFiled: July 8, 2003Date of Patent: February 7, 2006Assignee: Denso CorporationInventors: Shinji Kouda, Masahiro Seguchi
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Publication number: 20060006757Abstract: The present invention relates an electric rotating machine comprising a plurality of phase coils each composed of a plurality of partial coils each made by connecting segments each composed of an inside-slot conductor portion to be accommodated in each of slots of each of phase slot groups made in a stator core and an outside-slot conductor portion protruding from the slot. Of the plurality of partial coils constituting each of the phase coils, in each of the partial coils to be connected to an input/output terminal, its inside-slot conductor portion is accommodated in the slot other than end portions of the phase slot group in a circumferential direction of the stator core. This reduces the electric potential difference between the outside-slot conductor portion continuing thereinto and the outside-slot conductor portion of an adjacent phase coil, thereby improving the insulating performance.Type: ApplicationFiled: September 13, 2005Publication date: January 12, 2006Applicant: Denso CorporationInventor: Masahiro Seguchi
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Patent number: 6969938Abstract: The present invention relates an electric rotating machine comprising a plurality of phase coils each composed of a plurality of partial coils each made by connecting segments each composed of an inside-slot conductor portion to be accommodated in each of slots of each of phase slot groups made in a stator core and an outside-slot conductor portion protruding from the slot. Of the plurality of partial coils constituting each of the phase coils, in each of the partial coils to be connected to an input/output terminal, its inside-slot conductor portion is accommodated in the slot other than end portions of the phase slot group in a circumferential direction of the stator core. This reduces the electric potential difference between the outside-slot conductor portion continuing thereinto and the outside-slot conductor portion of an adjacent phase coil, thereby improving the insulating performance.Type: GrantFiled: September 17, 2003Date of Patent: November 29, 2005Assignee: Denso CorporationInventor: Masahiro Seguchi
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Publication number: 20050258703Abstract: A phase winding of a stator winding comprises one or more pairs of interconnected partial coil, each partial coil formed of sequentially connected U-shaped segment pairs, each pair comprising a large segment and small segment. Two segment legs, of the large and small segment respectively of such a pair, constitute first and second conductor layers of a first stator slot and have their tip portions mutually connected. The remaining two segment legs respectively constitute fourth and third conductor layers of a second slot that is distant by one pole pitch, and have their respective tip portions mutually connected.Type: ApplicationFiled: May 24, 2005Publication date: November 24, 2005Applicant: Denso CorporationInventors: Shinji Kouda, Masahiro Seguchi
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Publication number: 20050253466Abstract: A stator coil includes a coil portion wound around a stator core and a terminal board serving as a bus bar array board. The coil portion is arranged by sequentially connected segment conductors. The terminal board is a molded ring plate member disposed adjacently to a head coil end of the coil portion in the axial direction and elongated in the radial direction. The turn number of the stator coil is easily adjustable by selecting an optimum one of a plurality of terminal boards.Type: ApplicationFiled: May 11, 2005Publication date: November 17, 2005Applicant: DENSO CORPORATION.Inventors: Masahiro Seguchi, Shinji Kouda
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Patent number: 6960861Abstract: A yoke includes a plurality of recessed portions. A teeth block includes a plurality of protruding portions being coupled or fitted into the recessed portions of the yoke. The recessed portions and the protruding portions are disposed as a plurality of pairs in the lamination direction. The protruding portions and the yoke are fixed with a teeth fixing pin.Type: GrantFiled: November 26, 2003Date of Patent: November 1, 2005Assignee: Denso CorporationInventors: Shigenori Yoneda, Masahiro Seguchi, Noriyasu Inomata
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Publication number: 20040256941Abstract: A concentrated-winding type stator coil unit for a rotary electric machine is provided with a stator core having a core back and teeth protruding from the core back. Plural coils are wound around the teeth respectively. Each coil is composed of, for example, a first layered coil formed by winding a coil wire in a layer around each tooth to form plural turns arranged in parallel on each tooth and a second layered coil formed by winding the coil wire in a layer to from plural turns around the first layered coil wound around each tooth. The last turn of the first layered coil continues to the first turn of the second layered coil. Both ends of the coil wire are located at and on a base potion of each of the teeth as a winding-start end and a winding-finish end of each of the coils.Type: ApplicationFiled: January 27, 2004Publication date: December 23, 2004Applicant: DENSO CORPORATIONInventors: Shigenori Yoneda, Masahiro Seguchi, Noriyasu Inomata
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Patent number: 6833648Abstract: A sequentially joined-segment coil for a rotary electric machine such an electric motor is provided. The coil has an end portion which is made up of heads of conductor segments and projects from an end of a core. The heads of conductor segments have turns or bulges. The bulges are lapped over one another in various forms or shifted in location in an axis direction of the core, thereby permitting the core to be decreased in diameter, which provides for decreases in size and weight of the rotary electrical machine.Type: GrantFiled: June 24, 2003Date of Patent: December 21, 2004Assignee: Denso CorporationInventors: Tetsuya Gorohata, Shinji Kouda, Masahiro Seguchi, Kanehisa Urano, Hitoshi Hirano, Youichi Kamakura