Patents by Inventor Masabumi Nishigaya
Masabumi Nishigaya 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: 8888650Abstract: A vehicle drive apparatus includes a motor generator, a speed reduction mechanism connected to a rotor shaft of the motor generator, an output shaft connected to the speed reduction mechanism, an intermediate wall separating the motor generator from the speed reduction mechanism, and a bearing that is fixed to the intermediate wall and supports the rotor shaft. The motor generator, intermediate wall, speed reduction mechanism, and output shaft are disposed in this order, and a ring gear of the speed reduction mechanism is fixed. The ring gear is fixed to the intermediate wall via a ring gear flange that is positioned relative and fixed to the intermediate wall by a centering mechanism and a locking mechanism. The centering mechanism is formed by fitting a boss of the ring gear flange and the intermediate wall. The locking mechanism is disposed on an outer peripheral side relative to the centering mechanism.Type: GrantFiled: March 22, 2011Date of Patent: November 18, 2014Assignees: Aisin Aw Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Atsushi Mori, Ryohei Kubo, Hiroki Shintani, Koji Takasu, Haruhisa Suzuki, Masabumi Nishigaya
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Patent number: 8714940Abstract: A liquid pressure generating apparatus including a pump; and two one-way clutches arranged coaxially with the pump's drive shaft. Inner races of the respective two one-way clutches are integrated with each other to form a common inner race. Outer races of the respective two one-way clutches are formed independently from each other and are driven respectively by pump driving members different from each other. The common inner race includes a coupling portion coupled to the pump drive shaft and extending in the radial direction and a cylindrical body portion extending from the coupling portion in a second axial direction opposite from the first axial direction on the radially outside the pump drive shaft. The body portion includes a depression indented radially outward on an inner peripheral surface thereof. A lubricant supply portion for the depression is provided radially inside the depression.Type: GrantFiled: September 13, 2011Date of Patent: May 6, 2014Assignees: Aisin Aw Co., Ltd., Toyota Jidosha Kabushiki Kaisha, NSK-Warner K. KInventors: Shinichi Nomura, Hiroshi Yoshikawa, Atsushi Mori, Hironari Toyoda, Ryo Watanabe, Masabumi Nishigaya, Akira Iwano
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Patent number: 8672800Abstract: A carrier is implemented which is capable of reducing the number of parts and the number of bonding steps. The carrier includes a pair of holding members that hold from both sides in an axial direction L a pinion shaft supporting a pinion gear. A first holding member as one of the pair of holding members includes a coupling portion extending in the axial direction L toward a second holding member as the other holding member. The second holding member is a disc-like member, and has an external outer peripheral gear integrally formed in its outer peripheral portion. The coupling portion is bonded to a coupling bonding portion provided on a radially inner side R1 of the outer peripheral gear in the second holding member.Type: GrantFiled: February 28, 2012Date of Patent: March 18, 2014Assignees: Aisin Aw Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Shinichi Nomura, Takaaki Kawashima, Hirotaka Shiratori, Masabumi Nishigaya
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Patent number: 8602935Abstract: A vehicle motive power transmission apparatus includes: a planetary gear device; an oil pump for sucking oil present in an apparatus case; a one-way clutch that transmits normal-direction rotation output of the planetary gear device to the oil pump, but does not transmit reverse-direction rotation output of the planetary gear device to the oil pump; an oil tank which is provided in the apparatus case, and which is provided with a first introduction portion that receives oil that is splashed upward as a gear in the apparatus case rotates in a normal direction, and a second introduction portion that receives oil that is splashed upward as the gear rotates in a reverse direction; and an oil passageway that supplies the planetary gear device with oil present in the oil tank or oil sucked by the oil pump.Type: GrantFiled: March 1, 2010Date of Patent: December 10, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shingo Katoh, Masabumi Nishigaya
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Publication number: 20130324352Abstract: A carrier is implemented which is capable of reducing the number of parts and the number of bonding steps. The carrier includes a pair of holding members that hold from both sides in an axial direction L a pinion shaft supporting a pinion gear. A first holding member as one of the pair of holding members includes a coupling portion extending in the axial direction L toward a second holding member as the other holding member. The second holding member is a disc-like member, and has an external outer peripheral gear integrally formed in its outer peripheral portion. The coupling portion is bonded to a coupling bonding portion provided on a radially inner side R1 of the outer peripheral gear in the second holding member.Type: ApplicationFiled: February 28, 2012Publication date: December 5, 2013Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Shinichi Nomura, Takaaki Kawashima, Hirotaka Shiratori, Masabumi Nishigaya
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Patent number: 8360793Abstract: A connector fitting structure enabling easy insertion is provided. The connector fitting structure includes a case provided with a plurality of holes, a male connector having connectors fitted into the plurality of holes, respectively, and sealing elements as sealing members interposed between the holes and the connectors, respectively. Connectors each have a tapered surface. The respective tapered surfaces are shifted in position such that a tapered surface comes into contact with a sealing element, and then another tapered surface comes into contact with a sealing element.Type: GrantFiled: March 31, 2009Date of Patent: January 29, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shuji Nagano, Masabumi Nishigaya
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Publication number: 20130008274Abstract: A vehicle drive apparatus includes a motor generator, a speed reduction mechanism connected to a rotor shaft of the motor generator, an output shaft connected to the speed reduction mechanism, an intermediate wall separating the motor generator from the speed reduction mechanism, and a bearing that is fixed to the intermediate wall and supports the rotor shaft. The motor generator, intermediate wall, speed reduction mechanism, and output shaft are disposed in this order, and a ring gear of the speed reduction mechanism is fixed. The ring gear is fixed to the intermediate wall via a ring gear flange that is positioned relative and fixed to the intermediate wall by a centering mechanism and a locking mechanism. The centering mechanism is formed by fitting a boss of the ring gear flange and the intermediate wall. The locking mechanism is disposed on an outer peripheral side relative to the centering mechanism.Type: ApplicationFiled: March 22, 2011Publication date: January 10, 2013Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Atsushi Mori, Ryohei Kubo, Hiroki Shintani, Koji Takasu, Haruhisa Suzuki, Masabumi Nishigaya
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Publication number: 20120076675Abstract: A liquid pressure generating apparatus including a pump; and two one-way clutches arranged coaxially with the pump's drive shaft. Inner races of the respective two one-way clutches are integrated with each other to form a common inner race. Outer races of the respective two one-way clutches are formed independently from each other and are driven respectively by pump driving members different from each other. The common inner race includes a coupling portion coupled to the pump drive shaft and extending in the radial direction and a cylindrical body portion extending from the coupling portion in a second axial direction opposite from the first axial direction on the radially outside the pump drive shaft. The body portion includes a depression indented radially outward on an inner peripheral surface thereof. A lubricant supply portion for the depression is provided radially inside the depression.Type: ApplicationFiled: September 13, 2011Publication date: March 29, 2012Applicants: AISIN AW CO., LTD., NSK-WARNER K. K, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinichi NOMURA, Hiroshi YOSHIKAWA, Atsushi MORI, Hironari TOYODA, Ryo WATANABE, Masabumi NISHIGAYA, Akira IWANO
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Publication number: 20110319215Abstract: A vehicle motive power transmission apparatus includes: a planetary gear device; an oil pump for sucking oil present in an apparatus case; a one-way clutch that transmits normal-direction rotation output of the planetary gear device to the oil pump, but does not transmit reverse-direction rotation output of the planetary gear device to the oil pump; an oil tank which is provided in the apparatus case, and which is provided with a first introduction portion that receives oil that is splashed upward as a gear in the apparatus case rotates in a normal direction, and a second introduction portion that receives oil that is splashed upward as the gear rotates in a reverse direction; and an oil passageway that supplies the planetary gear device with oil present in the oil tank or oil sucked by the oil pump.Type: ApplicationFiled: March 1, 2010Publication date: December 29, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shingo Katoh, Masabumi Nishigaya
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Publication number: 20110275231Abstract: A connector fitting structure enabling easy insertion is provided. The connector fitting structure includes a case provided with a plurality of holes, a male connector having connectors fitted into the plurality of holes, respectively, and sealing elements as sealing members interposed between the holes and the connectors, respectively. Connectors each have a tapered surface. The respective tapered surfaces are shifted in position such that a tapered surface comes into contact with a sealing element, and then another tapered surface comes into contact with a sealing element.Type: ApplicationFiled: March 31, 2009Publication date: November 10, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shuji Nagano, Masabumi Nishigaya
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Publication number: 20100235063Abstract: A hybrid vehicle (1) includes a rotation speed sensor (7) for detecting speed of rotation (Nm) of a motor generator (MG2). Fluctuation of the rotation speed (Nm) of the motor generator (MG2) reflects fluctuation of a first torque generated in a power transmitting member including a drive shaft (8). Hybrid vehicle (1) further includes a controller (30) for controlling a second torque transmitted from motor generator (MG2) through a rotation shaft of motor generator (MG2) to the power transmitting member, based on the speed of rotation (Nm) detected by rotation speed sensor (7). If the first torque is a vibration torque that fluctuates to cause the rotation shaft of motor generator (MG2) to rotate in positive and negative directions, controller (30) controls the second torque such that difference between absolute values of maximum value and minimum value of the vibration torque becomes smaller.Type: ApplicationFiled: January 13, 2009Publication date: September 16, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Kawamoto, Masabumi Nishigaya
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Patent number: 6565465Abstract: The continuously variable belt transmission is provided with a fixed sheave and a movable sheave provided on a secondary shaft, a first hydraulic chamber that presses the movable sheave in an axial direction, a second hydraulic chamber that gives the movable sheave a pressing force acting in a direction opposite the pressing force given by the first hydraulic chamber, an oil passage connected to the second hydraulic chamber, and an oil receiver disposed along a path from the oil passage to the second hydraulic chamber. The oil receiver is attached to the secondary shaft, a bearing and a bulkhead are disposed on both sides of the oil receiver, an oil passage is provided in the secondary shaft, and a grooved portion provided in the oil receiver connects the second hydraulic chamber and the oil passage.Type: GrantFiled: May 17, 2001Date of Patent: May 20, 2003Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masabumi Nishigaya, Shinya Kuwabara, Masami Sugaya, Shinji Kasuga, Shoichi Sayo, Hiroshi Morioka
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Publication number: 20010044350Abstract: The continuously variable belt transmission is provided with a fixed sheave and a movable sheave provided on a secondary shaft, a first hydraulic chamber that presses the movable sheave in an axial direction, a second hydraulic chamber that gives the movable sheave a pressing force acting in a direction opposite the pressing force given by the first hydraulic chamber, an oil passage connected to the second hydraulic chamber, and an oil receiver disposed along a path from the oil passage to the second hydraulic chamber. The oil receiver is attached to the secondary shaft, a bearing and a bulkhead are disposed on both sides of the oil receiver, an oil passage is provided in the secondary shaft, and a grooved portion provided in the oil receiver connects the second hydraulic chamber and the oil passage.Type: ApplicationFiled: May 17, 2001Publication date: November 22, 2001Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masabumi Nishigaya, Shinya Kuwabara, Masami Sugaya, Shinji Kasuga, Syoichi Sayo, Hiroshi Morioka