Patents by Inventor Yan-Jun Jia
Yan-Jun Jia 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: 7268458Abstract: A stator adapted for driving rotation of a rotor includes a stator body having a surrounding wall surface that surrounds a stator axis. A plurality of magnetic pole protrusions protrude radially from the surrounding wall surface relative to the stator axis, and a plurality of stator coils are respectively wound around the magnetic pole protrusions. A signal transmission unit is electrically coupled to the stator coils. Each of the magnetic pole protrusions has an outer periphery, and a recess formed inwardly from the outer periphery. Each of the stator coils has an inner conducting end that is accessible from the corresponding recess, thereby facilitating coupling of the inner conducting end to the signal transmission unit, and an outer conducting end electrically coupled to the signal transmission unit.Type: GrantFiled: June 30, 2005Date of Patent: September 11, 2007Assignee: Asia Optical Co., Inc.Inventors: Ming Lee, Yan-Jun Jia
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Patent number: 7180691Abstract: A color wheel assembly includes a carrier, a color filter assembly mounted coaxially on the carrier and formed by a plurality of annularly arranged filter segments, and a connecting unit including a plurality of annularly arranged limiting pieces connected respectively to the filter segments, and a limiting groove for receiving the limiting pieces. Each limiting piece has opposite first and second radial end faces, an inner face interconnecting the radial end faces, an outer face interconnecting the radial end faces and extending outwardly of the inner face, and a passage extending between the inner and outer faces and extending through the radial end faces. A press cover is connected to the carrier to press the filter segments against the carrier.Type: GrantFiled: February 6, 2006Date of Patent: February 20, 2007Assignee: Asia Optical Co., Inc.Inventors: Yan-Jun Jia, Shou-Chy Jia
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Publication number: 20060237357Abstract: A color wheel assembly includes a carrier, a color filter assembly mounted coaxially on the carrier and formed by a plurality of annularly arranged filter segments, and a connecting unit including a plurality of annularly arranged limiting pieces connected respectively to the filter segments, and a limiting groove for receiving the limiting pieces. Each limiting piece has opposite first and second radial end faces, an inner face interconnecting the radial end faces, an outer face interconnecting the radial end faces and extending outwardly of the inner face, and a passage extending between the inner and outer faces and extending through the radial end faces. A press cover is connected to the carrier to press the filter segments against the carrier.Type: ApplicationFiled: February 6, 2006Publication date: October 26, 2006Applicant: ASIA OPTICAL CO., INC.Inventors: Yan-Jun Jia, Shou-Chy Jia
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Publication number: 20060126199Abstract: A color wheel, for use in a Digital Light Processing (DLP), capable of preventing a color filter from escaping away is disclosed. The color wheel includes a motor having a spindle to which a rotating disc is mounted, and a filter element mounted to the rotating disc. The filter element includes a filter ring comprising a plurality of sectors having radially extending edges jointed to each other and forming a joint line between jointed edges, and a positioning ring coaxially mounted to the filter ring to hold the sectors together, the positioning ring being positioned on and fixed to the rotating disc and interposed between the filter ring and the rotating disc to fix the filter ring to the rotating disc.Type: ApplicationFiled: August 17, 2005Publication date: June 15, 2006Inventor: Yan-Jun Jia
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Publication number: 20060055272Abstract: A stator adapted for driving rotation of a rotor includes a stator body having a surrounding wall surface that surrounds a stator axis. A plurality of magnetic pole protrusions protrude radially from the surrounding wall surface relative to the stator axis, and a plurality of stator coils are respectively wound around the magnetic pole protrusions. A signal transmission unit is electrically coupled to the stator coils. Each of the magnetic pole protrusions has an outer periphery, and a recess formed inwardly from the outer periphery. Each of the stator coils has an inner conducting end that is accessible from the corresponding recess, thereby facilitating coupling of the inner conducting end to the signal transmission unit, and an outer conducting end electrically coupled to the signal transmission unit.Type: ApplicationFiled: June 30, 2005Publication date: March 16, 2006Applicant: ASIA OPTICAL CO., INC.Inventors: Ming Lee, Yan-Jun Jia
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Patent number: 6999252Abstract: A color wheel includes a carrier, a color filter assembly mounted coaxially on the central boss and formed by a plurality of annularly arranged filter segments, a press cover connected to the carrier to press the filter segments against the carrier, and a limiting element. The color filter assembly defines inner and outer peripheries, upper and lower surfaces extending between the inner and outer peripheries, and an engaging element projecting axially from one of the upper and lower surfaces. The limiting element projects axially toward the engaging element from one of the carrier and the press cover to engage the engaging element so as to prevent the color filter assembly from displacing radially from an axis of the carrier due to a centrifugal force.Type: GrantFiled: July 8, 2004Date of Patent: February 14, 2006Assignee: Asia Optical Co., Inc.Inventors: Ming Lee, Yan-Jun Jia
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Publication number: 20050168857Abstract: A color wheel includes a carrier, a color filter assembly mounted coaxially on the central boss and formed by a plurality of annularly arranged filter segments, a press cover connected to the carrier to press the filter segments against the carrier, and a limiting element. The color filter assembly defines inner and outer peripheries, upper and lower surfaces extending between the inner and outer peripheries, and an engaging element projecting axially from one of the upper and lower surfaces. The limiting element projects axially toward the engaging element from one of the carrier and the press cover to engage the engaging element so as to prevent the color filter assembly from displacing radially from an axis of the carrier due to a centrifugal force.Type: ApplicationFiled: July 8, 2004Publication date: August 4, 2005Applicant: ASIA OPTICAL CO., INC.Inventors: Ming Lee, Yan-Jun Jia
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Publication number: 20050169564Abstract: A rotating assembly includes an annular housing having a flange extending radially and inwardly therefrom, a rotating shaft disposed within the housing, an annular locking member sleeved fixedly on the rotating shaft, and a bearing disposed between the housing and the rotating shaft along a radial direction of the rotating shaft and between the locking member and the flange along an axial direction of the rotating shaft. The bearing includes an outer race connected to the housing, and an inner race connected to the rotating shaft and rotatable relative to the outer race. A resilient ring is clamped between one of the inner and outer races and one of the flange of the housing and the locking member so as to permit the inner and outer races of the bearing to deflect from each other along the radial direction of the rotating shaft.Type: ApplicationFiled: June 10, 2004Publication date: August 4, 2005Applicant: Asia Optical Co., Inc.Inventor: Yan-Jun Jia