Patents by Inventor Masaya MURAO
Masaya MURAO 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: 11180019Abstract: An electric bicycle includes a motor that includes a stator and a rotor and that is driven by a battery, a reduction gear, an output shaft configured to output power of the motor, a sprocket fixed to the output shaft, a housing, and a water jacket configured to cool the motor. The water jacket includes a flange section protruding outward in a radial direction of the stator, the flange section being formed in the water jacket at a side opposite to the reduction gear in a vehicle width direction.Type: GrantFiled: October 28, 2019Date of Patent: November 23, 2021Assignees: HONDA MOTOR CO., LTD., M-TEC Co., Ltd.Inventors: Satoshi Matsushima, Toshitaka Akita, Takafumi Irie, Kinya Mizuno, Makoto Mitsukawa, Kunio Yoshimi, Masaya Murao, Yoshiki Kasaya, Shinichiro Nakazawa, Kazuma Deguchi
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Publication number: 20200130498Abstract: An electric bicycle includes a motor that includes a stator and a rotor and that is driven by a battery, a reduction gear, an output shaft configured to output power of the motor, a sprocket fixed to the output shaft, a housing, and a water jacket configured to cool the motor. The water jacket includes a flange section protruding outward in a radial direction of the stator, the flange section being formed in the water jacket at a side opposite to the reduction gear in a vehicle width direction.Type: ApplicationFiled: October 28, 2019Publication date: April 30, 2020Inventors: Satoshi Matsushima, Toshitaka Akita, Takafumi Irie, Kinya Mizuno, Makoto Mitsukawa, Kunio Yoshimi, Masaya Murao, Yoshiki Kasaya, Shinichiro Nakazawa, Kazuma Deguchi
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Patent number: 9695883Abstract: The clutch device includes, a right pressure flange that brings clutch discs provided on a clutch outer and clutch plates provided on a clutch inner into pressure contact with one another. A pressure ring that moves the right pressure flange with an external force and a clutch spring transmits the force toward a clutch connected position, from the pressure ring to the right pressure flange. Further, a return spring between the clutch inner and the right pressure flange urges the right pressure flange toward a clutch disconnected position. The clutch spring and the return spring are disposed parallel to a clutch axial direction, their respective positions overlapping each other in the clutch axial direction.Type: GrantFiled: July 3, 2012Date of Patent: July 4, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Kinya Mizuno, Takeshi Sugano, Masaya Murao, Kazuhiko Nakamura, Junya Ono
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Patent number: 9228637Abstract: A power unit includes a cam damper mechanism having a cam member reciprocally and unrotatably provided on one of a pair of bevel gears, and rotatably provided on an extended shaft; a lifter member slidably and unrotatably provided on the extended shaft in an axial direction; a damper spring configured such that one end portion thereof is supported on a first flange portion of the extended shaft, and the other end portion thereof biases the lifter member toward the cam member in an axial direction by abutting on the lifter member, and the biasing force is supported by the one bevel gear. The extended shaft has the one of the bevel gears and the cam damper mechanism between the first flange portion and a first bearing, and is accommodated in the bevel gear case so as to be fixed to a bevel gear holder along with the first bearing.Type: GrantFiled: March 15, 2013Date of Patent: January 5, 2016Assignee: Honda Motor Co., Ltd.Inventors: Masaya Murao, Koji Terada, Junya Watanabe
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Publication number: 20150239745Abstract: It is an object of the present invention to provide magnesium oxide particles which have a high aspect ratio and are loosely aggregated. The present invention is the magnesium oxide particles have an aspect ratio measured by a scanning probe microscope of 3 to 10.Type: ApplicationFiled: September 13, 2013Publication date: August 27, 2015Applicant: KYOWA CHEMICAL INDUSTRY CO., LTD.Inventors: Kenichi Kobashi, Hideaki Baba, Masaya Murao
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Patent number: 8950560Abstract: A power unit includes, electric motors for generating driving forces for respectively engaging clutches, and a clutch cover covering outer sides of the clutches in a direction along a power shaft. The electric motors are disposed in such a manner that drive axes arranged in a longitudinal direction thereof are perpendicular to the direction along the power shaft; further, the electric motors are disposed on the periphery of the clutch cover within a width W in the direction along the power shaft.Type: GrantFiled: July 3, 2012Date of Patent: February 10, 2015Assignee: Honda Motor Co., LtdInventors: Kinya Mizuno, Yasushi Fujimoto, Masaya Murao, Kazuhiko Nakamura
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Patent number: 8573085Abstract: A power unit for a vehicle includes first and second clutches, that transmit/interrupt rotary power from a primary reduction gear mechanism to first and second main shafts, arranged at respective ends of the first and second main shafts with selectively established multispeed gears provided among a countershaft, and the first and second main shafts. The primary reduction gear mechanism includes: a single driving gear provided on a crankshaft; a first driven gear supported by a first main shaft for relative rotation therewith at a position adjacent to the first clutch and meshes with the driving gear; an intermediate driving gear rotating with the first driven gear; an idle gear that meshes with the intermediate driving gear, and supported by the countershaft for relative rotation therewith; and a second driven gear, that meshes with the idle gear, and supported by the second main shaft for relative rotation therewith.Type: GrantFiled: September 15, 2011Date of Patent: November 5, 2013Assignee: Honda Motor Co., Ltd.Inventors: Kinya Mizuno, Yoshiaki Tsukada, Masaya Murao, Yasushi Fujimoto
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Publication number: 20130255417Abstract: A power unit includes a cam damper mechanism having a cam member reciprocally and unrotatably provided on one of a pair of bevel gears, and rotatably provided on an extended shaft; a lifter member slidably and unrotatably provided on the extended shaft in an axial direction; a damper spring configured such that one end portion thereof is supported on a first flange portion of the extended shaft, and the other end portion thereof biases the lifter member toward the cam member in an axial direction by abutting on the lifter member, and the biasing force is supported by the one bevel gear. The extended shaft has the one of the bevel gears and the cam damper mechanism between the first flange portion and a first bearing, and is accommodated in the bevel gear case so as to be fixed to a bevel gear holder along with the first bearing.Type: ApplicationFiled: March 15, 2013Publication date: October 3, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Masaya MURAO, Koji TERADA, Junya WATANABE
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Publication number: 20130008757Abstract: The clutch device includes, a right pressure flange that brings clutch discs provided on a clutch outer and clutch plates provided on a clutch inner into pressure contact with one another. A pressure ring that moves the right pressure flange with an external force and a clutch spring transmits the force toward a clutch connected position, from the pressure ring to the right pressure flange. Further, a return spring between the clutch inner and the right pressure flange urges the right pressure flange toward a clutch disconnected position. The clutch spring and the return spring are disposed parallel to a clutch axial direction, their respective positions overlapping each other in the clutch axial direction.Type: ApplicationFiled: July 3, 2012Publication date: January 10, 2013Applicant: HONDA MOTOR CO., LTDInventors: Kinya Mizuno, Takeshi Sugano, Masaya Murao, Kazuhiko Nakamura, Junya Ono
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Publication number: 20130008760Abstract: A power unit includes, electric motors for generating driving forces for respectively engaging clutches, and a clutch cover covering outer sides of the clutches in a direction along a power shaft. The electric motors are disposed in such a manner that drive axes arranged in a longitudinal direction thereof are perpendicular to the direction along the power shaft; further, the electric motors are disposed on the periphery of the clutch cover within a width W in the direction along the power shaft.Type: ApplicationFiled: July 3, 2012Publication date: January 10, 2013Applicant: HONDA MOTOR CO., LTDInventors: Kinya Mizuno, Yasushi Fujimoto, Masaya Murao, Kazuhiko Nakamura
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Publication number: 20120067146Abstract: A power unit for a vehicle includes first and second clutches, that transmit/interrupt rotary power from a primary reduction gear mechanism to first and second main shafts, arranged at respective ends of the first and second main shafts with selectively established multispeed gears provided among a countershaft, and the first and second main shafts. The primary reduction gear mechanism includes: a single driving gear provided on a crankshaft; a first driven gear supported by a first main shaft for relative rotation therewith at a position adjacent to the first clutch and meshes with the driving gear; an intermediate driving gear rotating with the first driven gear; an idle gear that meshes with the intermediate driving gear, and supported by the countershaft for relative rotation therewith; and a second driven gear, that meshes with the idle gear, and supported by the second main shaft for relative rotation therewith.Type: ApplicationFiled: September 15, 2011Publication date: March 22, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Kinya MIZUNO, Yoshiaki TSUKADA, Masaya MURAO, Yasushi FUJIMOTO