Patents by Inventor Toru Yagasaki
Toru Yagasaki 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: 20180311719Abstract: A method for manufacturing a metal element includes performing press processing and punching processing on a band plate-shaped metal element material having a constant cross section by a mold with a main punch in contact with a rear surface of the metal element and a counter punch in contact with the front surface thereof. The main punch or the counter punch has protrusion portions which are in contact with at least a part of the ear portion or the body portion to form a recessed portion, and a bulging portion bulging in the longitudinal direction from the radial direction inner edge of ear portions of the metal element or the radial direction outer edge of a body portion thereof, which is formed by the material extruded from the recessed portion by the protrusion portion.Type: ApplicationFiled: April 27, 2018Publication date: November 1, 2018Applicant: HONDA MOTOR CO., LTD.Inventor: Toru Yagasaki
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Patent number: 10094446Abstract: In a metal belt for a continuously variable transmission having a saddle face of a metal element and a rocking edge positioned at substantially the same position in the radial direction, a rocking edge is provided at a radially outer end of a front face of a body part, the rocking edge being a fulcrum for pitching of the metal element of the metal belt which is wound around a drive pulley and a driven pulley and transmits a driving force between the two pulleys, and a recess is provided extending from a front face of a neck part to a front face of the body part. Thus, it is possible to minimize a space created between the front and rear metal elements and reduce the bending stress applied to the metal elements, thereby minimizing degradation of the power transmission efficiency.Type: GrantFiled: March 31, 2014Date of Patent: October 9, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Toru Yagasaki, Soichiro Sumida
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Patent number: 10078238Abstract: According to one embodiment, there is provided a display device including a display module and a cover member, bonded together by a photosensitive resin layer. A portion of the photosensitive resin layer that is located behind a light-shielding portion (in other words, located in a shaded portion) with respect to the light for curing the photosensitive resin is cured.Type: GrantFiled: August 18, 2016Date of Patent: September 18, 2018Assignee: Japan Display Inc.Inventors: Katsuhiro Kato, Toru Yagasaki, Haruki Yamada
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Publication number: 20180163864Abstract: In a first process, a tangential friction coefficient of a non-slippage side pulley of a drive pulley and a driven pulley is estimated from a tangential friction coefficient and a winding diameter of a slippage side pulley. In a second process, torque transmitted by a metal belt is calculated from the tangential friction coefficient and the winding diameter. In a third process, a required axial thrust of the non-slippage side pulley is calculated from the torque and the winding diameter. In a fourth process, the gear ratio is changed by reducing a ratio holding axial thrust of the non-slippage side pulley toward the required axial thrust. Therefore, the gear shifting can be performed merely by reducing the axial thrust of the non-slippage side pulley, and thus it is possible to improve the durability of the pulleys or the metal belt and to reduce a load of a hydraulic pump.Type: ApplicationFiled: November 9, 2017Publication date: June 14, 2018Applicant: Honda Motor Co.,Ltd.Inventor: Toru YAGASAKI
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Publication number: 20180141101Abstract: An inclined surface corresponding portion (30?) of a metal element raw material (23?) and inclined surface forming portions (47b, 47c) of dies (47, 49) are parallel to each other and are in contact with each other without gap. Therefore, a press load required while forming a metal element (23) is suppressed to a minimum and durability of the dies (47, 49) is enhanced. In addition, recess portions (24a, 26a) are formed on both rear surfaces of an ear portion (26) and a body portion (24) of the metal element (23) through pressing by using the dies (47, 49). Therefore, the sizes of both the recess portions (24a, 26a) are adjusted to change radially inward/outward distributions of the press loads on the dies (47, 49), so that it is possible to prevent the dies from tilting and to reduce a difference in radially inward/outward plate thickness of the metal element (23).Type: ApplicationFiled: November 6, 2017Publication date: May 24, 2018Applicant: Honda Motor Co.,Ltd.Inventors: Soichiro SUMIDA, Toru YAGASAKI
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Publication number: 20180128370Abstract: A rear surface of a metal element (23) includes first contact portions (C1) formed on both right and left end sides of an ear portion (26), a second contact portion (C2) formed in a neck portion (25), and a third contact portion (C3) formed in a central portion in a transverse direction in the vicinity of a locking edge (29) of a body portion (24). The first contact portions (C1), the second contact portion (C2), and the third contact portion (C3) can come into contact with a front surface of another adjacent metal element (23) on a rear side. A plate thickness of the metal element (23) in the second contact portion (C2) is smaller than the plate thickness of the metal element (23) in the first contact portions (C1) and is greater than the plate thickness of the metal element (23) in the third contact portion (C3).Type: ApplicationFiled: November 2, 2017Publication date: May 10, 2018Applicant: Honda Motor Co.,Ltd.Inventors: Toru YAGASAKI, Soichiro SUMIDA
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Patent number: 9938892Abstract: An internal combustion engine includes an exhaust manifold, a main exhaust passage, an auxiliary exhaust passage, a communicating passage, a first switching mechanism, and a second switching mechanism. The main exhaust passage is connected to the exhaust manifold. The auxiliary exhaust passage is connected to the main exhaust passage. The communicating passage connects with the main exhaust passage and the auxiliary exhaust passage. The first switching mechanism switches a communication state of the exhaust manifold among a first state, a second state, and a third state. The second switching mechanism switches a communication state of the communicating passage with the main exhaust passage among a fourth state, a fifth state, and a sixth state.Type: GrantFiled: November 1, 2016Date of Patent: April 10, 2018Assignee: HONDA MOTOR CO., LTD.Inventor: Toru Yagasaki
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Publication number: 20180003298Abstract: The present invention addresses problems of decrease in coefficient of friction and transmission efficiency, and increase in wear of a pulley and a metal element caused by a stopper regulating a moving end of a movable side pulley half of a belt type continuously variable transmission. In a belt type continuously variable transmission in which a metal belt is wound around a drive pulley and a driven pulley, in LOW change gear ratio, a movable side pulley half of the drive pulley is not confined in axial direction, and the movable side pulley half of the driven pulley abuts the closing stopper to regulate movement in closing direction, and in OD change gear ratio, the movable side pulley half of the drive pulley is not confined in the axial direction, and the movable side pulley half of the driven pulley abuts an opening stopper to regulate movement in opening direction.Type: ApplicationFiled: June 23, 2017Publication date: January 4, 2018Applicant: Honda Motor Co.,Ltd.Inventors: Toru YAGASAKI, Soichiro SUMIDA, Ryohta AOKI, Shigeru KANEHARA
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Publication number: 20170313302Abstract: A hybrid drive apparatus is provided to allow setting a variety of driving modes while achieving improvement in transmission efficiency. The hybrid drive apparatus includes an engine, first and second motor generators and a planetary gear mechanism. An output shaft of the first motor generator, an output shaft of an engine and an output shaft of the second motor generator, and an input shaft of the continuously variable transmission mechanism are coupled respectively to a sun gear, ring gear and carrier of the planetary gear mechanism. The hybrid drive apparatus includes first, second and third clutches which can switch engagement/disengagement respectively between the output shaft of the engine and the ring gear, between the carrier and the ring gear, and on the input shaft of the continuously variable transmission mechanism.Type: ApplicationFiled: August 27, 2015Publication date: November 2, 2017Applicant: HONDA MOTOR CO., LTD.Inventor: Toru Yagasaki
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Patent number: 9772005Abstract: A continuously variable transmission metal element includes a first ring slot, a second ring slot, a neck portion, an ear portion, and a body portion. The body portion includes an inclined surface. A plate thickness of the continuously variable transmission metal element in a longitudinal direction at an inner end of the inclined surface in a radial direction is larger than a distance between a first metal mold molding surface of a first metal mold and a second metal mold molding surface of a second metal mold in the longitudinal direction at a position corresponding to the inner end of the inclined surface. The first metal mold and the second metal mold constitute a metal mold to press a roughly formed metal element material between the first metal mold molding surface and the second metal mold molding surface so as to provide the continuously variable transmission metal element.Type: GrantFiled: January 21, 2016Date of Patent: September 26, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Toru Yagasaki, Soichiro Sumida
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Patent number: 9714690Abstract: A metal belt for a continuously variable transmission includes a metal element wound around a drive pulley and a driven pulley and transmits a driving force between the two pulleys, in which a rocking edge is provided at the radially outer end of a front face of a body part. The rocking edge being a fulcrum for pitching of the metal element, and a recess is formed in a rear face of a neck part, and therefore, when the metal element on the rear side is displaced toward the radially outer side with respect to the metal element on the front side, the rocking edge of the metal element on the rear side enters a ring slot and the recess of the metal element on the front side, and the metal element on the rear side moves so as to be closer to the metal element on the front side.Type: GrantFiled: February 25, 2014Date of Patent: July 25, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Toru Yagasaki, Soichiro Sumida
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Publication number: 20170159553Abstract: An internal combustion engine includes an exhaust manifold, a main exhaust passage, an auxiliary exhaust passage, a communicating passage, a first switching mechanism, and a second switching mechanism. The main exhaust passage is connected to the exhaust manifold. The auxiliary exhaust passage is connected to the main exhaust passage. The communicating passage connects with the main exhaust passage and the auxiliary exhaust passage. The first switching mechanism switches a communication state of the exhaust manifold among a first state, a second state, and a third state. The second switching mechanism switches a communication state of the communicating passage with the main exhaust passage among a fourth state, a fifth state, and a sixth state.Type: ApplicationFiled: November 1, 2016Publication date: June 8, 2017Applicant: HONDA MOTOR CO., LTD.Inventor: Toru YAGASAKI
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Publication number: 20170159752Abstract: First and second inclined faces of an inclined face extending radially inward and rearward from a rocking edge formed so as to coincide with a front edge of a saddle face of a body part of a metal element are molded by press forming a metal element material using a mold. An inclined face-corresponding part of the metal element material, which corresponds to the inclined face of the metal element, includes a first inclined face-corresponding portion inclined rearward at a first inclination angle from a rocking edge-corresponding part, and a second inclined face-corresponding portion inclined rearward at a second inclination angle, which is larger than the first inclination angle, from a radially inner end of the first inclined face-corresponding portion. The mold includes a first inclined face-molding portion inclined rearward at the first inclination angle from a rocking edge-molding portion abutting against the rocking edge-corresponding part.Type: ApplicationFiled: December 1, 2016Publication date: June 8, 2017Applicant: HONDA MOTOR CO., LTD.Inventors: Soichiro Sumida, Toru Yagasaki
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Publication number: 20170075161Abstract: According to one embodiment, there is provided a display device including a display module and a cover member, bonded together by a photosensitive resin layer. A portion of the photosensitive resin layer that is located behind a light-shielding portion (in other words, located in a shaded portion) with respect to the light for curing the photosensitive resin is cured.Type: ApplicationFiled: August 18, 2016Publication date: March 16, 2017Applicant: Japan Display Inc.Inventors: Katsuhiro KATO, Toru YAGASAKI, Haruki YAMADA
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Patent number: 9556931Abstract: An element 40 for a metallic belt in a belt-type continuously variable transmission has a structure in which: a belt radial outer portion 46b of a metallic belt 7 is linearly shaped to come into line contact with a pulley radial inner portion 11a which is a constant-angle inclined generatrix portion of a pulley 5 or 8; a projecting portion 48 located below a locking edge portion 44a and extending inward in the belt radial direction is provided at each of the lower ends of both side edges of the element 40; and when the element 40 and a pulley radial outer portion 11b which is a curved generatrix portion of the pulley 5 or 8 contact each other, the projecting portion 48 bends inward in the axial direction of the pulley 5 or 8.Type: GrantFiled: May 15, 2013Date of Patent: January 31, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Soichiro Sumida, Toru Yagasaki
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Patent number: 9534685Abstract: A control device includes: a clamping force determination unit that determines a clamping force Fs so that a transmission gear ratio R of a stepless transmission is a target transmission gear ratio; a correction unit that corrects the clamping force Fs determined by the clamping force determination unit, based on an oil temperature TO of a lubricant interposed between each of pulleys and a belt and the transmission gear ratio R; and a clamping force control unit that controls clamping of the pulleys and to be performed with the clamping force Fs corrected by the correction unit.Type: GrantFiled: November 22, 2013Date of Patent: January 3, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Toru Yagasaki, Ryohta Aoki, Ryo Katayama, Ukyo Ogata, Hideaki Aoyama, Yuichiro Takemori
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Publication number: 20160281819Abstract: A continuously variable transmission metal element includes a first ring slot, a second ring slot, a neck portion, an ear portion, and a body portion. The body portion includes an inclined surface. A plate thickness of the continuously variable transmission metal element in a longitudinal direction at an inner end of the inclined surface in a radial direction is larger than a distance between a first metal mold molding surface of a first metal mold and a second metal mold molding surface of a second metal mold in the longitudinal direction at a position corresponding to the inner end of the inclined surface. The first metal mold and the second metal mold constitute a metal mold to press a roughly formed metal element material between the first metal mold molding surface and the second metal mold molding surface so as to provide the continuously variable transmission metal element.Type: ApplicationFiled: January 21, 2016Publication date: September 29, 2016Applicant: HONDA MOTOR CO., LTD.Inventors: Toru YAGASAKI, Soichiro SUMIDA
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Publication number: 20160153524Abstract: The present invention achieves both reducing a friction coefficient of a metal ring and improving a durability of the same provided to a metal belt of a continuously variable transmission. A continuously variable transmission belt supports a plurality of metal elements to a metal ring assembly obtained by laminating a plurality of metal rings, and is provided with an uneven surface having a plurality of projecting portions and a plurality of valley portions formed between the plurality of projecting portions on an inner peripheral surface of the metal ring of an innermost periphery. A low-friction coefficient layer having a lower friction coefficient on a surface thereof than a friction coefficient on a surface of the projecting portion is formed on the valley portion on the uneven surface. The low-friction coefficient layer can be a layer having a fluoridated layer or a DLC layer.Type: ApplicationFiled: July 10, 2014Publication date: June 2, 2016Applicant: HONDA MOTOR CO., LTD.Inventors: Taiki Ando, Toru Yagasaki
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Patent number: 9334923Abstract: A metal belt is wound around a drive pulley and a driven pulley of a continuously variable transmission. Since intervals between multiple adjuster metal element groups are set so as to avoid that the number of the adjuster metal element groups simultaneously existing on a driving-side chord portion of the metal belt between the drive pulley and the driven pulley is 2 or more, it is possible to prevent large vibration which would occur if two or more adjuster metal element groups would exist on the driving-side chord portion of the metal belt. Furthermore, since the multiple adjuster metal elements are distributionally disposed in the multiple adjuster metal element groups, it is possible to decrease imbalance among the adjuster metal element groups, compared with a case where all the adjuster metal elements are disposed in a single adjuster metal element group. Thereby, the vibration can be reduced more.Type: GrantFiled: March 24, 2015Date of Patent: May 10, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Toru Yagasaki, Soichiro Sumida
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Publication number: 20160102732Abstract: In a metal belt for a continuously variable transmission having a saddle face of a metal element and a rocking edge positioned at substantially the same position in the radial direction, a rocking edge is provided at a radially outer end of a front face of a body part, the rocking edge being a fulcrum for pitching of the metal element of the metal belt which is wound around a drive pulley and a driven pulley and transmits a driving force between the two pulleys, and a recess is provided extending from a front face of a neck part to a front face of the body part. Thus, it is possible to minimize a space created between the front and rear metal elements and reduce the bending stress applied to the metal elements, thereby minimizing degradation of the power transmission efficiency.Type: ApplicationFiled: March 31, 2014Publication date: April 14, 2016Applicant: HONDA MOTOR CO., LTD.Inventors: Toru Yagasaki, Soichiro Sumida