Patents by Inventor Takao Watanabe
Takao Watanabe 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: 20170355278Abstract: A fuel cell system includes a drive motor, a fuel cell, an auxiliary machine, a secondary battery, a temperature sensor, a current sensor, and a control section. The control section controls the secondary battery for discharging by driving the drive motor or the auxiliary machine and for charging through power generation by the fuel cell or regeneration by the drive motor when a temperature measured by the temperature sensor is lower than a specified value.Type: ApplicationFiled: May 23, 2017Publication date: December 14, 2017Inventors: Tatsuya FUKAMI, Shinji ASO, Takao WATANABE
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Publication number: 20170331138Abstract: A fuel cell system is equipped with a fuel cell and a secondary battery. This fuel cell system is equipped with a recordation unit that records a charge-discharge history of the secondary battery, a prediction unit that predicts restriction on an output of the secondary battery based on the charge-discharge history recorded by the recordation unit, and an output control unit that starts power generation by the fuel cell prior to a timing of restriction on the output of the secondary battery, when the prediction unit predicts restriction on the output of the secondary battery and the fuel cell is in an intermittent operation state.Type: ApplicationFiled: May 2, 2017Publication date: November 16, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiro KAMIYA, Kenji UMAYAHARA, Takao WATANABE, Tomoya OGAWA
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Publication number: 20170310142Abstract: On a start of a fuel cell system, (i) when the temperature of a high-voltage secondary battery obtained from a temperature sensor is higher than a predetermined reference value, a controller of the fuel cell system is configured to set an output voltage on a step-down side of a DC-DC converter to a higher voltage than a voltage of a low-voltage secondary battery and subsequently start an FC auxiliary machine using electric power from the high-voltage secondary battery. (ii) When the temperature of the high-voltage secondary battery obtained from the temperature sensor is equal to or lower than the predetermined reference value, on the other hand, the controller of the fuel cell system is configured to set the output voltage on the step-down side of the DC-DC converter to a lower voltage than the voltage of the low-voltage secondary battery and subsequently start the FC auxiliary machine using the electric power from the high-voltage secondary battery.Type: ApplicationFiled: April 17, 2017Publication date: October 26, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takao WATANABE, Akihiro KAMIYA, Kenji UMAYAHARA
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Patent number: 9793784Abstract: There is provided a cooling structure whose performance for cooling ring members and brushes is enhanced. In a cooling structure applied to a slip ring device including ring members provided to an input shaft and brushes contacting with these ring members, the input shaft includes a shaft member where an external spline portion is formed, and a cylindrical member that is installed over the external circumference of the shaft member so that an internal spline portion formed on the cylindrical member is meshed with the external spline portion, and that the ring members are fixed to the cylindrical member. The internal spline portion is formed upon a portion of the inner circumferential surface of the cylindrical member that lies on the radially inward side of the ring members.Type: GrantFiled: November 14, 2013Date of Patent: October 17, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi Tominaga, Takahiro Shiina, Akira Murakami, Hitoshi Takayama, Shu Asami, Takao Watanabe, Kiyoshi Uetsuji, Shuji Yumoto, Hirofumi Fujiwara
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Patent number: 9716412Abstract: This rotor for a rotating electric motor includes a hollow cylindrical rotor core with a plurality of laminated electromagnetic steel plates. The inner and outer circumferential surfaces of the rotor core each face a magnetic gap. The rotor core is interposed between a first rotating support member and a second rotating support member. A flange is formed on a first end of a tubular pin protruding from a first hole of the first rotating support member. A tubular expansion part of the tubular pin plastically deforms due to fluid pressure so as to come into close contact with a through hole of the rotor core, the first hole of the first rotating support member, and a second hole of the second rotating support member.Type: GrantFiled: January 21, 2014Date of Patent: July 25, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirohito Hayashi, Takahiro Shiina, Masahide Uemura, Akira Murakami, Tomoyuki Tohyama, Eiji Tsuchiya, Yasumitsu Osada, Wataru Hijikata, Takao Watanabe
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Patent number: 9673689Abstract: Provided is a compound motor (14) comprising a magnet rotor (19) supported by bearings (B3, B4) in a rotatable manner, a winding rotor (20) supported by bearings (B5, B6) in a rotatable manner relative to the magnet rotor (19) at the inner side of the magnet rotor (19) and having rotor winding units (20b), and slip ring mechanisms (25). A space is formed in the inner circumference of the winding rotor (20). At least a part of the slip ring mechanisms (25) is arranged in the space of the inner circumference of the winding rotor (20). The bearings (B3 to B6) include bearings (B3, B6), the internal diameter of each is larger than the size of slip ring mechanisms (25) with respect to the radial direction. The bearings (B3, B6) are arranged outside the slip ring mechanisms (25) with respect to the radial direction.Type: GrantFiled: August 6, 2012Date of Patent: June 6, 2017Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Chuo Kenkyusho, Aisin Seiki Kabushiki KaishaInventors: Takahiro Shiina, Akira Murakami, Tadashi Fujiyoshi, Yasumitsu Osada, Takao Watanabe, Shu Asami, Eiji Tsuchiya, Tomoyuki Tohyama
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Patent number: 9653108Abstract: When recording is performed by focusing a short pulse laser on an inside of a transparent medium such as quartz glass, and forming a minute deformed region in which the refractive index is different from that of surroundings thereof, it is difficult to ensure a recording quality. Therefore, a recorded dot length in a depth direction is monitored 111 and a power of the laser light is adjusted based on the monitored recorded dot length, or a difference between a focus position where a region of the recorded dots appears brighter than the surroundings and a focus position where the region of the recorded dots appears darker than the surroundings is measured and the power of the laser light is adjusted based on the difference.Type: GrantFiled: September 14, 2012Date of Patent: May 16, 2017Assignee: Hitachi, Ltd.Inventors: Manabu Shiozawa, Koichi Watanabe, Takao Watanabe
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Publication number: 20170126161Abstract: A current command value calculating unit (174) calculates current command values for a rotor winding (30) and current command values for a stator winding (20) with respect to a torque command value between a first rotor (28) and a second rotor (18) and a torque command value between a stator (16) and the second rotor (18) based on an evaluation function representing a total copper loss of the rotor winding (30) and the stator winding (20) and using first and second magnetic interference models. The first magnetic interference model represents a relationship of a linkage magnetic flux ?in of the rotor winding (30) with respect to a current Iin in the rotor winding (30) and a current Iout in the stator winding (20). The second magnetic interference model represents a relationship of a linkage magnetic flux ?out of the stator winding (20) with respect to the current Iin, Iout.Type: ApplicationFiled: March 18, 2015Publication date: May 4, 2017Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHAInventors: Wataru HIJIKATA, Takao WATANABE, Eiji TSUCHIYA, Shohei MATSUMOTO, Masahide UEMURA, Akira MURAKAMI, Tomoyuki TOHYAMA
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Patent number: 9542969Abstract: When a simple magnification optical system is used in reproduction of a recording medium in which a large number of minute modified regions are three-dimensionally formed inside solid matter, contrast is insufficient and interlayer crosstalk is increased, and therefore, it is impossible to take a sufficient S/N ratio. Provided is a recording medium in which at least one layer is configured by a set of two adjacent sub-layers, and dots on a sub-layer correspond to a recording data ‘1’ and dots on the other sub-layer correspond to ‘0’. These data are played back.Type: GrantFiled: May 28, 2012Date of Patent: January 10, 2017Assignee: Hitachi, Ltd.Inventors: Takao Watanabe, Manabu Shiozawa, Koichi Watanabe, Shigeharu Kimura
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Patent number: 9499158Abstract: When a drive shaft (37) is driven while the operation of an engine (36) is stopped, the rotation of an input-side rotor (28) is restricted by the engagement of a brake. Further, on the basis of the temperature Temp_SR of a brush (96) acquired by a temperature sensor (97), the distribution of torque Tcoup acting between the input-side rotor (28) and the first output-side rotor (18) and torque Tmg acting between the stator (16) and the second output-side rotor (19) is controlled. Consequently, drive performance when the drive shaft (37) is driven while the operation of the engine (36) is stopped is improved while local overheating of a slip ring (95) is prevented.Type: GrantFiled: November 8, 2013Date of Patent: November 22, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takao Watanabe, Eiji Tsuchiya, Tatsuya Miyano, Akira Murakami, Takahiro Shiina, Tadashi Fujiyoshi
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Patent number: 9490687Abstract: A rotational difference is generated between a first and a second rotor and a third rotor, which causes an induced current to flow in a first rotor winding. This causes a torque to act between the first rotor and the third rotor. The rotary magnetic field generated by the induced current flowing through a second rotor winding interacts with a second stator, which in turn generates an induced electromotive force in a second stator winding. The induced electromotive force is applied via a phase adjustment circuit to a first stator winding, which generates a rotary magnetic field and causes a torque to act between the first stator and the third rotor. The rotary magnetic field generated by the second rotor winding and the induced current flowing in the second stator winding causes a torque to act between the second stator and the second rotor.Type: GrantFiled: April 29, 2014Date of Patent: November 8, 2016Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takao Watanabe, Eiji Tsuchiya, Hiroyuki Nishizawa, Takeshi Kitahata
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Patent number: 9457670Abstract: In a power generation control apparatus applied to a hybrid vehicle including a compound motor in which a wound rotor is connected to an internal combustion engine and a magnet rotor is connected to a transmission, when regenerative power generation is underway and the internal combustion engine is operative, a first motor/generator constituted by the wound rotor and the magnet rotor and the internal combustion engine are controlled such that torque output from the internal combustion engine is increased by torque applied to the internal combustion engine from the first motor/generator, and a power generation amount of a second motor/generator constituted by the magnet rotor and a stator is increased such that torque transmitted to an output shaft from the internal combustion engine is not applied to a drive wheel.Type: GrantFiled: June 4, 2012Date of Patent: October 4, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tadashi Fujiyoshi, Takahiro Shiina, Akira Murakami, Tatsuya Miyano, Takao Watanabe, Ryoichi Hibino
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Publication number: 20160196259Abstract: A search condition related to image and text stored in a first database is associated with the image and the text, and an information providing unit selects the image and the text associated with a received search condition from among images related to a facility associated with a facility information extracted by a search processing unit and the text describing the service provided at the facility, generates search result guide data in which the extracted facility information and the selected image and the selected text are included, and provides the search result guide data to a user terminal.Type: ApplicationFiled: November 30, 2015Publication date: July 7, 2016Inventors: Daisuke KOMURO, Ryota KIMURA, Kazumu SUGAWARA, Takao WATANABE
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Patent number: 9384380Abstract: A motion picture is captured while a focal position is changed in a predetermined reproduction layer of a recording medium, the resolutions of a plurality of still images acquired by the capturing of the motion picture are checked using check patterns, which are recorded at a predetermined frequency, of the medium, it is determined whether the still images are usable for the reproduction of data, and a plurality of the still images determined to be usable are composed.Type: GrantFiled: February 27, 2014Date of Patent: July 5, 2016Assignee: HITACHI-LG DATA STORAGE, INC.Inventors: Takao Watanabe, Daisuke Tomita, Koichi Watanabe, Ryo Imai
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Patent number: 9359167Abstract: A sheet processing device comprising: a pressing unit that presses a fold line part of a folded sheet bundle; and a moving unit that moves a pressing position of the pressing unit in a fold direction of the folded sheet bundle, wherein the pressing unit includes a pair of pressing rollers that holds the folded sheet bundle therebetween, and the pair of pressing rollers changes an angle ? between a thickness direction of the folded sheet bundle and a line connecting the rotational centers of the pressing rollers in the middle of movement.Type: GrantFiled: August 26, 2014Date of Patent: June 7, 2016Assignee: RICOH COMPANY, LTD.Inventors: Akihiro Musha, Keisuke Sugiyama, Kiyoshi Hata, Takeshi Akai, Ikuhisa Okamoto, Jun Yamada, Takao Watanabe
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Patent number: 9334942Abstract: When a first drive shaft and a second drive shaft rotate at equal rotational speeds, a first rotor and a second rotor rotate at equal rotational speeds. On the other hand, a rotational difference is generated between the first drive shaft and the second shaft by generating a torque between the first rotor and the second rotor and consequently, a rotational difference between the first rotor and the second rotor, so that a torque distribution between the first drive shaft and the second drive shaft is adjusted according to the torque generated between the first rotor and the second rotor. With this process, the torque distribution between the first drive shaft and the second drive shaft is adjusted without complicating the structure, and a loss when the first drive shaft and the second drive shaft rotate at equal rotational speeds is reduced.Type: GrantFiled: April 9, 2014Date of Patent: May 10, 2016Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventor: Takao Watanabe
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Publication number: 20160114999Abstract: A sheet processing device includes: a conveying module that conveys a folded sheet; and a pressing module that presses a folded part of the folded sheet by rotating about a direction orthogonal to a sheet conveying direction of the conveying module as a rotation axis. The pressing module includes a projecting part arranged in a certain range in a direction of the rotation axis along a circumferential surface about the rotation axis. The projecting part is formed to be symmetric with respect to a middle part of the rotation axis in the direction of the rotation axis, and the projecting part arranged on one side from the middle part along the direction of the rotation axis are formed such that a position of the projecting part in a rotational direction of the circumferential surface varies along the direction of the rotation axis.Type: ApplicationFiled: October 14, 2015Publication date: April 28, 2016Inventors: Michitaka SUZUKI, Tomohiro FURUHASHI, Tomomichi HOSHINO, Akira KUNIEDA, Takahiro WATANABE, Yuji SUZUKI, Satoshi SAITO, Koki SAKANO, Takao WATANABE
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Publication number: 20160079817Abstract: This rotor for a rotating electric motor includes a hollow cylindrical rotor core with a plurality of laminated electromagnetic steel plates. The inner and outer circumferential surfaces of the rotor core each face a magnetic gap. The rotor core is interposed between a first rotating support member and a second rotating support member. A flange is formed on a first end of a tubular pin protruding from a first hole of the first rotating support member. A tubular expansion part of the tubular pin plastically deforms due to fluid pressure so as to come into close contact with a through hole of the rotor core, the first hole of the first rotating support member, and a second hole of the second rotating support member.Type: ApplicationFiled: January 21, 2014Publication date: March 17, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirohito HAYASHI, Takahiro SHINA, Masahide UEMURA, Akira MURAKAMI, Tomoyuki TOHYAMA, Eiji TSUCHIYA, Yasumitsu OSADA, Wataru HIJIKATA, Takao WATANABE
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Publication number: 20160068359Abstract: A sheet processing device includes a conveying unit, a presser, an end detector, and a setting unit. The conveying unit conveys a sheet having a crease formed therein. The presser presses the crease in the sheet. The end detector detects an end in a conveying direction of the sheet at a position upstream of the presser in the conveying direction. The setting unit sets a crease position where the crease is to be formed. Upon detection of the end in the conveying direction, the conveying unit conveys the sheet to a position where the crease faces the presser, on the basis of the crease position set by the setting unit. The presser presses the crease in the conveyed sheet.Type: ApplicationFiled: September 1, 2015Publication date: March 10, 2016Applicant: RICOH COMPANY, LIMITEDInventors: Michitaka SUZUKI, Tomohiro FURUHASHI, Tomomichi HOSHINO, Satoshi SAITO, Takahiro WATANABE, Takao WATANABE, Yuji SUZUKI
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Publication number: 20160060072Abstract: A sheet processing apparatus includes: a second conveying roller pair that receives and conveys a sheet conveyed by a first conveying roller pair; a first folding roller pair that forms a first fold on the sheet; and a first rotation unit capable of rotating the second conveying roller pair and the first folding roller pair. One roller of the second conveying roller pair and one roller of the first folding roller pair are a common roller shared therebetween. The second conveying roller pair causes the sheet to be deflected and guided to the first folding roller pair, and the first folding roller pair forms the first fold on the deflected sheet by rotating the first rotation unit in a certain direction in a state in which the sheet is held by the first conveying roller pair and the second conveying roller pair.Type: ApplicationFiled: August 28, 2015Publication date: March 3, 2016Applicant: Ricoh Company, LimitedInventors: Takahiro WATANABE, Tomohiro FURUHASHI, Michitaka SUZUKI, Tomomichi HOSHINO, Yuji SUZUKI, Satoshi SAITO, Takao WATANABE