Patents by Inventor Wen-Nan Chou
Wen-Nan Chou 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: 20240329083Abstract: A position-adjustable probing device comprises a stationary probe comprising a first coaxial structure having a first needle core, a first dielectric layer, and a first exterior conductive layer, and a first and a second movable probes. The first movable probe arranged at a first side of the stationary probe comprises a ground needle core, and a first extending structure comprising a first planar structure electrically contacted with the stationary probe through a first movement, a first top surface and a first bottom surface. The second movable probe arranged at a second side of the stationary needle comprises a second coaxial structure comprising a second needle core, a second dielectric layer, and a second exterior conductive layer, and a second extending structure comprising a second planar structure electrically contacted with the stationary probe through a second movement, a second top surface, and a second bottom surface.Type: ApplicationFiled: March 1, 2024Publication date: October 3, 2024Inventors: CHIA-NAN CHOU, Chung-Yen Huang, Wen-Chin Yang, Wen-Hung LO, Wei-Lwen Yeh, Chih-Hao Ho
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Publication number: 20240248129Abstract: A circuit board detection device includes a base, a stage assembly, a first gantry support, and a first probe assembly. The stage assembly is arranged on the base and includes a linear drive module, a rotary motor, and a platform. The platform is configured to carry a circuit board and can be driven by the linear drive module to move along a first axial direction. The platform can also be driven by the rotary motor to rotate relative to a first rotation axis. The first gantry support is fixed on the base and includes a first beam. The first beam extends along a second axial direction perpendicular to the first axial direction to span over the linear drive module, and includes a first probe guide rail. The first probe assembly is arranged on the first probe guide rail to be movable along the second axial direction.Type: ApplicationFiled: January 8, 2024Publication date: July 25, 2024Applicant: MPI CorporationInventors: Wen-Wei Lin, Wen-Chung Lin, Chia-Nan Chou, Huang-Huang Yang, Yu-Tse Wang, Wei-Heng Hung, Ya-Hung Lo, Shou-Jen Tsai, Fuh-Chyun Tang
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Patent number: 10910908Abstract: A motor includes a base, a stator, a dynamic pressure bearing unit and a rotor. The base includes a shaft tube. The shaft tube includes a closed end and an open end. The stator is mounted around the shaft tube. The dynamic pressure bearing unit includes a bearing, a dynamic pressure assembly and a thrust plate. The bearing is received in the shaft tube. The dynamic pressure assembly and the thrust plate are disposed in a position relatively adjacent to the open end of the shaft tube and relatively distant from the closed end of the shaft tube. The dynamic pressure assembly is located between the bearing and the thrust plate. A lubricating fluid layer is disposed between the dynamic pressure assembly and the thrust plate. The rotor is connected to the thrust plate and is rotatably coupled with the bearing.Type: GrantFiled: September 18, 2018Date of Patent: February 2, 2021Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Wen-Nan Chou
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Publication number: 20190207466Abstract: A motor including a base, a stator, a dynamic pressure bearing unit and a rotor are disclosed. The base includes a shaft tube. The shaft tube includes a closed end and an open end. The stator is mounted around the shaft tube. The dynamic pressure bearing unit includes a bearing, a dynamic pressure assembly and a thrust plate. The bearing is received in the shaft tube. The dynamic pressure assembly and the thrust plate are disposed in a position relatively adjacent to the open end of the shaft tube and relatively distant from the closed end of the shaft tube. The dynamic pressure assembly is located between the bearing and the thrust plate. A lubricating fluid layer is disposed between the dynamic pressure assembly and the thrust plate. The rotor is connected to the thrust plate and is rotatably coupled with the bearing.Type: ApplicationFiled: September 18, 2018Publication date: July 4, 2019Inventors: Alex Horng, Wen-Nan Chou
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Patent number: 8714786Abstract: A lamp includes a base, a cooling fan and a circuit board. The base has a coupling portion, with a LED member mounted on the base. The cooling fan has a frame coupled with the coupling portion of the base, wherein the frame receives a driving unit and a fan wheel coupling with the driving unit in a rotatable way and has a first fixing portion. The circuit board has a second fixing portion coupling with the first fixing portion of the frame, with the circuit board electrically connecting with the driving unit of the cooling fan.Type: GrantFiled: October 18, 2012Date of Patent: May 6, 2014Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Kuo-Hao Huang, Wen-Nan Chou
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Publication number: 20120207596Abstract: An advection-type fan includes a frame, an impeller and a cover plate. The frame has a bottom plate mounted with a shaft seat. The bottom plate has a lateral wall on a periphery thereof that surrounds the shaft seat. The lateral wall has an air-guiding portion, a partitioning portion and an air-separating portion. An air inlet is formed between the air-guiding portion and the partitioning portion, and an air outlet is formed between the air-guiding portion and the air-separating portion. The partitioning portion comprises a first end defining the air inlet and a second end extending towards the air outlet. The air-separating portion is arranged on the second end of the partitioning portion. The impeller is rotatably mounted on the shaft seat. The cover plate is disposed on a top of the lateral wall of the frame.Type: ApplicationFiled: July 5, 2011Publication date: August 16, 2012Inventors: Wen Nan Chou, Yu Lun Shih
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Patent number: 7604459Abstract: The present invention relates to a fan frame structure, which is composed of a plastic seat and a metal circular casing. At least two opposing guard fences disposed in a radial manner and extended upwards from a top edge of said seat. A fitting rim for inserting the metal circular casing is provided between an inner surface of the guard fence and a top surface of the seat. A side column is extended from a top side of the guard fence to cover and support the metal circular casing. Accordingly, the use of costly metal material can be reduced to lower the production cost, and the decrease of strength and deformation of the fan frame structure due to high temperature can be prevented. Meanwhile, the frame wall thickness can be reduced to enlarge the fan blade, thereby increasing air flow, fan speed and heat dissipation performance of a cooling fan.Type: GrantFiled: November 30, 2006Date of Patent: October 20, 2009Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Wen-Nan Chou
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Publication number: 20080085818Abstract: The present invention relates to a fan frame structure, which is composed of a plastic seat and a metal circular casing. At least two opposing guard fences disposed in a radial manner and extended upwards from a top edge of said seat. A fitting rim for inserting the metal circular casing is provided between an inner surface of the guard fence and a top surface of the seat. A side column is extended from a top side of the guard fence to cover and support the metal circular casing. Accordingly, the use of costly metal material can be reduced to lower the production cost, and the decrease of strength and deformation of the fan frame structure due to high temperature can be prevented. Meanwhile, the frame wall thickness can be reduced to enlarge the fan blade, thereby increasing air flow, fan speed and heat dissipation performance of a cooling fan.Type: ApplicationFiled: November 30, 2006Publication date: April 10, 2008Applicant: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Wen-Nan Chou