Patents by Inventor Wagner Yukio Hirao
Wagner Yukio Hirao 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: 11273700Abstract: An axle assembly that includes an axle housing, a differential carrier, and an electric motor module. The differential carrier that is mounted to the axle housing and rotatably supports a differential. The electric motor module is received inside the differential carrier and is operatively connected to and provides torque to the differential.Type: GrantFiled: August 18, 2017Date of Patent: March 15, 2022Assignee: ArvinMeritor Technology, LLCInventors: Pedro Garcia, Dhanapal Vittala Raya, Christopher Keeney, Wagner Yukio Hirao, David G. Gonska
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Patent number: 11034237Abstract: A torque transmission apparatus having a shift collar and a drive component. The shift collar may have a collar gear that may have a collar tooth that may have a concave collar tooth side surface that may be centered about a transverse collar tooth plane. The drive component may have a tooth that may have a convex lateral side surface centered about a transverse tooth plane. The concave collar tooth side surface may cooperate with the convex lateral side surface to align the transverse collar tooth plane with the transverse tooth plane.Type: GrantFiled: January 27, 2020Date of Patent: June 15, 2021Assignee: ArvinMeritor Technology, LLCInventors: Wagner Yukio Hirao, Chetankumar Ghatti
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Patent number: 10794430Abstract: A collar and a torque transmission apparatus having a collar. The collar may have a set of collar teeth. Each collar tooth may include a first end surface, a second end surface, a first collar side surface, and a second collar side surface. The first and second collar side surfaces may be concave from the first end surface to the second end surface.Type: GrantFiled: June 5, 2018Date of Patent: October 6, 2020Assignee: ArvinMeritor Technology, LLCInventors: Wagner Yukio Hirao, Dhanapal Vittala Raya
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Publication number: 20200247236Abstract: A torque transmission apparatus having a shift collar and a drive component. The shift collar may have a collar gear that may have a collar tooth that may have a concave collar tooth side surface that may be centered about a transverse collar tooth plane. The drive component may have a tooth that may have a convex lateral side surface centered about a transverse tooth plane. The concave collar tooth side surface may cooperate with the convex lateral side surface to align the transverse collar tooth plane with the transverse tooth plane.Type: ApplicationFiled: January 27, 2020Publication date: August 6, 2020Applicant: ArvinMeritor Technology, LLCInventors: Wagner Yukio Hirao, Chetankumar Ghatti
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Patent number: 10500940Abstract: An axle assembly having an axle housing, a differential carrier, an electric motor module, and a gear reduction module. The differential carrier may be mounted to the axle housing and may rotatably support a differential. The electric motor module may be disposed in the differential carrier. The gear reduction module may be disposed adjacent to a differential carrier cover and may transmit torque from the electric motor module to the differential via a drive pinion.Type: GrantFiled: August 18, 2017Date of Patent: December 10, 2019Assignee: ArvinMeritor Technology, LLCInventors: Pedro Garcia, Dhanapal Vittala Raya, Christopher Keeney, Wagner Yukio Hirao, David G. Gonska
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Patent number: 10500941Abstract: An axle assembly having an electric motor module, a gear reduction module, and a shift mechanism. The shift mechanism may have a shift collar that may transmit torque from the gear reduction module to a drive pinion. The shift collar may be movable between a first position in which a low range gear ratio is engaged, a second position in which a neutral gear ratio is selected, and a third position in which a high range gear ratio is engaged.Type: GrantFiled: August 18, 2017Date of Patent: December 10, 2019Assignee: ArvinMeritor Technology, LLCInventors: Pedro Garcia, Dhanapal Vittala Raya, Christopher Keeney, Wagner Yukio Hirao, David G. Gonska
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Publication number: 20190366838Abstract: A collar and a torque transmission apparatus having a collar. The collar may have a set of collar teeth. Each collar tooth may include a first end surface, a second end surface, a first collar side surface, and a second collar side surface. The first and second collar side surfaces may be concave from the first end surface to the second end surface.Type: ApplicationFiled: June 5, 2018Publication date: December 5, 2019Applicant: ArvinMeritor Technology, LLCInventors: Wagner Yukio Hirao, Dhanapal Vittala Raya
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Patent number: 10302145Abstract: An assembly having a clutch collar, a clutch collar, and a method of manufacturing a clutch collar. The clutch collar may have clutch collar teeth that are continuously curved in a direction that extends away from an axis. A dovetail profile may be provided with the clutch collar teeth.Type: GrantFiled: March 28, 2017Date of Patent: May 28, 2019Assignee: ArvinMeritor Technology, LLCInventor: Wagner Yukio Hirao
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Publication number: 20190054818Abstract: An axle assembly having an electric motor module, a gear reduction module, and a shift mechanism. The shift mechanism may have a shift collar that may transmit torque from the gear reduction module to a drive pinion. The shift collar may be movable between a first position in which a low range gear ratio is engaged, a second position in which a neutral gear ratio is selected, and a third position in which a high range gear ratio is engaged.Type: ApplicationFiled: August 18, 2017Publication date: February 21, 2019Applicant: ArvinMeritor Technology, LLCInventors: Pedro Garcia, Dhanapal Vittala Raya, Christopher Keeney, Wagner Yukio Hirao, David G. Gonska
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Publication number: 20190054817Abstract: An axle assembly having an axle housing, a differential carrier, an electric motor module, and a gear reduction module. The differential carrier may be mounted to the axle housing and may rotatably support a differential. The electric motor module may be disposed in the differential carrier. The gear reduction module may be disposed adjacent to a differential carrier cover and may transmit torque from the electric motor module to the differential via a drive pinion.Type: ApplicationFiled: August 18, 2017Publication date: February 21, 2019Applicant: ArvinMeritor Technology, LLCInventors: Pedro Garcia, Dhanapal Vittala Raya, Christopher Keeney, Wagner Yukio Hirao, David G. Gonska
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Publication number: 20190054816Abstract: An axle assembly that includes an axle housing, a differential carrier, and an electric motor module. The differential carrier that is mounted to the axle housing and rotatably supports a differential. The electric motor module is received inside the differential carrier and is operatively connected to and provides torque to the differential.Type: ApplicationFiled: August 18, 2017Publication date: February 21, 2019Applicant: ArvinMeritor Technology, LLCInventors: Pedro Garcia, Dhanapal Vittala Raya, Christopher Keeney, Wagner Yukio Hirao, David G. Gonska
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Publication number: 20180283465Abstract: An assembly having a clutch collar, a clutch collar, and a method of manufacturing a clutch collar. The clutch collar may have clutch collar teeth that are continuously curved in a direction that extends away from an axis. A dovetail profile may be provided with the clutch collar teeth.Type: ApplicationFiled: March 28, 2017Publication date: October 4, 2018Inventor: Wagner Yukio Hirao
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Patent number: 9518642Abstract: A hub reduction gear of a drive axle and a method of providing a hub reduction gear. The hub reduction gear may include a plurality of bevel planet gears in mesh with a bevel sun gear, a planet carrier adapted to drive a vehicle wheel; and an internal bevel gear annulus in mesh with the bevel planet gears and adapted for connection to an axle side shaft casing.Type: GrantFiled: May 22, 2015Date of Patent: December 13, 2016Assignee: Meritor Heavy Vehicle Systems Cameri SpAInventor: Wagner Yukio Hirao
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Publication number: 20160341292Abstract: A hub reduction gear of a drive axle and a method of providing a hub reduction gear. The hub reduction gear may include a plurality of bevel planet gears in mesh with a bevel sun gear, a planet carrier adapted to drive a vehicle wheel; and an internal bevel gear annulus in mesh with the bevel planet gears and adapted for connection to an axle side shaft casing.Type: ApplicationFiled: May 22, 2015Publication date: November 24, 2016Inventor: Wagner Yukio Hirao
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Publication number: 20150211604Abstract: A hypoid gear set for a vehicle drivetrain includes a pinion gear in meshing engagement with a ring gear. The hypoid gear set has a negative pinion offset. The hypoid pinion and ring gears provide a predetermined gear ratio that can be varied up to a fifty percent faster ratio within a single carrier packaging envelope defined by a maximum ring gear diameter.Type: ApplicationFiled: April 7, 2015Publication date: July 30, 2015Inventors: Wagner Yukio Hirao, I-Chao Chung, Tomaz Dopico Varela, Silvio M. Yamada
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Patent number: 9022893Abstract: A hypoid gear set for a vehicle drivetrain includes a pinion gear in meshing engagement with a ring gear. The hypoid gear set has a negative pinion offset. The hypoid pinion and ring gears provide a predetermined gear ratio that can be varied up to a fifty percent faster ratio within a single carrier packaging envelope defined by a maximum ring gear diameter.Type: GrantFiled: November 15, 2012Date of Patent: May 5, 2015Assignee: ArvinMeritor Technology, LLCInventors: Wagner Yukio Hirao, I-Chao Chung, Tomaz Dopico Varela, Silvio M. Yamada
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Publication number: 20120021863Abstract: A hypoid gear set for a vehicle drivetrain includes a pinion gear in meshing engagement with a ring gear. The hypoid gear set has a negative pinion offset. The hypoid pinion and ring gears provide a predetermined gear ratio that can be varied up to a fifty percent faster ratio within a single carrier packaging envelope defined by a maximum ring gear diameter.Type: ApplicationFiled: July 22, 2010Publication date: January 26, 2012Inventors: Wagner Yukio Hirao, I-Chao Chung, Tomaz Dopico Varela, Silvio M. Yamada
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Patent number: 7845445Abstract: An electric drive unit for a vehicle wheel includes an electric motor that powers a planetary drive having a first stage gear set and a second stage gear set. Each of the first and second stage gear sets includes a sun gear that is driven by a motor output shaft. Each of the first and second stage gear sets also includes a plurality of planet gears that are in meshing engagement with a respective one of the sun gears. The first and second stage gear sets share a common ring gear. A planet carrier of the second stage gear set provides driving output to a wheel shaft that drives the vehicle wheel.Type: GrantFiled: March 29, 2007Date of Patent: December 7, 2010Assignee: ArvinMeritor Technology, LLCInventors: Lon Cooper, Wagner Yukio Hirao, Mark C. Smith, Adam Ritchie
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Publication number: 20080236908Abstract: An electric drive unit for a vehicle wheel includes an electric motor that powers a planetary drive having a first stage gear set and a second stage gear set. Each of the first and second stage gear sets includes a sun gear that is driven by a motor output shaft. Each of the first and second stage gear sets also includes a plurality of planet gears that are in meshing engagement with a respective one of the sun gears. The first and second stage gear sets share a common ring gear. A planet carrier of the second stage gear set provides driving output to a wheel shaft that drives the vehicle wheel.Type: ApplicationFiled: March 29, 2007Publication date: October 2, 2008Inventors: Lon Cooper, Wagner Yukio Hirao, Mark C. Smith, Adam Ritchie
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Patent number: 6569053Abstract: A drive axle assembly is provided that includes an axle housing having a cavity. A differential case is disposed within the cavity. The ring gear is supported on the differential case such as by fastening the ring gear to a flange extending from the differential case. A pinion cage eccentrically supports the driveshaft and pinion, which are rotatable about a first axis. The pinion cage may be used for different axle assemblies having different gear ratios. Moreover, the same differential case may be used for the different axle assemblies. The pinion cage is rotatable relative to the carrier housing between first and second positions in which the first axis is spaced from the ring gear first and second distances, respectively. In this manner, the pinion offset and gear mounting distance may be varied. The pinion cage is secured to the housing, preferably by fasteners, in one of the positions to accommodate a particular gearset.Type: GrantFiled: September 5, 2001Date of Patent: May 27, 2003Assignee: Meritor Heavy Vehicle Technology, LLCInventors: Wagner Yukio Hirao, I-Chao Chung