Patents by Inventor Hung-Chi Wang

Hung-Chi Wang 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).

  • Publication number: 20110072619
    Abstract: A hinge includes a second connector having a hollow pivotal device of which a peripheral outside protrudes outward to form a locking rib, and a first connector having a pivotal sleeve which is pivotally sleeved to the pivotal device to make the first connector rotatable relative to the second connector. The locking rib is able to slide along and abut against a peripheral inside of the pivotal sleeve to produce friction resistance force therebetween for positioning the first connector at any inclined angle relative to the second connector. A fastening pin is disposed in the pivotal device of the second connector and spaced from a peripheral inside of the pivotal device so that can make the pivotal device pressed inward to produce an outward elasticity to strengthen the friction resistance force between the locking rib and the peripheral inside of the pivotal sleeve.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Applicant: CHENG UEI PRECISION INDUSTRY CO., LTD.
    Inventors: Hung-Chi Wang, Chin-Te Chiu, Mei-Chuan Yang
  • Publication number: 20110072620
    Abstract: A hinge includes a second connector having a pintle of which a locating rib is protruded at a peripheral outside, and a first connector which includes a pivotal sleeve sleeved to the pintle and defining a slot to break off the pivotal sleeve for locking the locating rib therein, a coupling flap and a locating strip spaced from each other in a parallel relation and connected with two opposite edges of the slot respectively. The locating rib can further slide along and abut against a peripheral inside of the pivotal sleeve to produce friction resistance force therebetween for positioning the first connector at any inclined angle relative to the second connector. A fastening element holds the locating strip and the coupling flap together and can adjust a space between the locating strip and the coupling flap to further regulate the friction resistance force.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Applicant: CHENG UEI PRECISION INDUSTRY CO., LTD.
    Inventors: Hung-Chi Wang, Chin-Te Chiu, Mei-Chuan Yang
  • Patent number: 7769196
    Abstract: A microphone shell includes a top wall and a side wall extending downwardly from peripheral area of the top wall. A receiving room is formed between the top wall and the side wall for containing a microphone soldered with a printed circuit board, and a through hole arranged on center of the top wall. Voice is transmitted only through the through hole and gathered in the receiving room of the microphone shell, and then received by the microphone. In addition the microphone receives no external noise because the microphone shell covers the microphone and obstructs the external noise. Therefore, the microphone shell not only gathers voice but also obstructs noise.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: August 3, 2010
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventor: Hung-Chi Wang
  • Publication number: 20100014703
    Abstract: A loudspeaker according to the present invention includes a frame body, a leading wire board disposed underneath the frame body, a magnet mounted in the frame body, a pad ring glued on an edge of the frame body, a diaphragm whose exterior rim is glued on the pad ring and a voice coil assembled in the frame body and surrounding the magnet. A top of the voice coil is adhered to a bottom of the diaphragm and two free ends of the voice coil are soldered to the leading wire board. The pad ring is made of plastic material.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 21, 2010
    Applicant: CHENG UEI PRECISION INDUSTRY CO., LTD.
    Inventors: Hung-Chi Wang, Kun-Li Huang
  • Publication number: 20080298629
    Abstract: A loudspeaker includes a basket defining a center hole therethrough, a conduction wire board fixed to the bottom surface of the basket, a magnet placed on the basket, a diaphragm arranged on the basket and above the magnet, and a voice coil. The conduction wire board defines a core hole corresponding to the center hole, and two welding foils on the bottom surface. The magnet defines a through hole corresponding to the center hole. The voice coil is wrapped around the magnet and fixed to the bottom of the diaphragm. The voice coil has leading wires, which bend inward at the top and downward pass through the through hole of the magnet, the center hole of the basket and the core hole of the conduction wire board, and then extend toward two sides of the rivet for being welded on the corresponding welding foils.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Inventors: Kun-Li Huang, Hung-Chi Wang, Jiin-Tarng Huang
  • Patent number: 7436489
    Abstract: A device and a method for testing an exposure apparatus is disclosed. A testing device includes a substrate, and a plurality of block patterns, each of which has a top area varying with an area of a shot region of the exposure apparatus, having at least two different heights located on the substrate. Additionally, the method for testing an exposure apparatus includes using the exposure apparatus to perform an exposure process on the testing device or on the testing device having a photoresist layer thereon, and testing the performance of the exposure apparatus through comparing surface information of the testing device computed by the exposure apparatus with actual surface information of the testing device or through examining photoresist patterns formed on the testing device.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: October 14, 2008
    Assignee: Powerchip Semiconductor Corp.
    Inventors: Hung-Chi Wang, Wei-Feng Lin
  • Publication number: 20070201716
    Abstract: A microphone shell includes a top wall and a side wall extending downwardly from peripheral area of the top wall. A receiving room is formed between the top wall and the side wall for containing a microphone soldered with a printed circuit board, and a through hole arranged on center of the top wall. Voice is transmitted only through the through hole and gathered in the receiving room of the microphone shell, and then received by the microphone. In addition the microphone receives no external noise because the microphone shell covers the microphone and obstructs the external noise. Therefore, the microphone shell not only gathers voice but also obstructs noise.
    Type: Application
    Filed: May 25, 2006
    Publication date: August 30, 2007
    Inventor: Hung-Chi Wang
  • Patent number: 7145644
    Abstract: A device and a method for testing an exposure apparatus is disclosed. A testing device includes a substrate, and a plurality of block patterns, each of which has a top area varying with an area of a shot region of the exposure apparatus, having at least two different heights located on the substrate. Additionally, the method for testing an exposure apparatus includes using the exposure apparatus to perform an exposure process on the testing device or on the testing device having a photoresist layer thereon, and testing the performance of the exposure apparatus through comparing surface information of the testing device computed by the exposure apparatus with actual surface information of the testing device or through examining photoresist patterns formed on the testing device.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: December 5, 2006
    Assignee: Powerchip Semiconductor Corp.
    Inventors: Hung-Chi Wang, Wei-Feng Lin
  • Publication number: 20060263915
    Abstract: A device and a method for testing an exposure apparatus is disclosed. A testing device includes a substrate, and a plurality of block patterns, each of which has a top area varying with an area of a shot region of the exposure apparatus, having at least two different heights located on the substrate. Additionally, the method for testing an exposure apparatus includes using the exposure apparatus to perform an exposure process on the testing device or on the testing device having a photoresist layer thereon, and testing the performance of the exposure apparatus through comparing surface information of the testing device computed by the exposure apparatus with actual surface information of the testing device or through examining photoresist patterns formed on the testing device.
    Type: Application
    Filed: July 28, 2006
    Publication date: November 23, 2006
    Inventors: Hung-Chi Wang, Wei-Feng Lin
  • Publication number: 20060048333
    Abstract: The present invention discloses a tool for cleaning particles from a wafer stage, comprising: a main body, a driving device, a power supply, and a cleaning module composed of a rotary base, a turntable, and an elastic member, wherein the main body is designed to be extendable, having a accommodating space disposed at the front thereof, and the driving device is arranged in the accommodating space for driving the cleaning module, and the power supply is coupled to the driving device for providing power to the same. Moreover, the rotary base is connected to the turntable by way of the elastic member, so that the driving device can drive the turntable to rotate for cleaning the wafer stage. A plurality turntables of different characteristic can be selected to be used in the cleaning module of the invention with respect to different cleaning requirement and environment.
    Type: Application
    Filed: November 17, 2004
    Publication date: March 9, 2006
    Inventors: Hung-Chi Wang, Chung-Ming Kuo, Wei-Feng Lin
  • Publication number: 20050190348
    Abstract: A device and a method for testing an exposure apparatus is disclosed. A testing device includes a substrate, and a plurality of block patterns, each of which has a top area varying with an area of a shot region of the exposure apparatus, having at least two different heights located on the substrate. Additionally, the method for testing an exposure apparatus includes using the exposure apparatus to perform an exposure process on the testing device or on the testing device having a photoresist layer thereon, and testing the performance of the exposure apparatus through comparing surface information of the testing device computed by the exposure apparatus with actual surface information of the testing device or through examining photoresist patterns formed on the testing device.
    Type: Application
    Filed: June 29, 2004
    Publication date: September 1, 2005
    Inventors: Hung-Chi Wang, Wei-Feng Lin
  • Publication number: 20050151952
    Abstract: A photolithography system applied to the semiconductor process includes a light source, a shutter set, and a lens set. The shutter set has a variable opening area. The shutter set can include a plurality of triple-blade shutters and utilizes step motors to adjust the relative positions of the triple-blade shutters. The opening area is adjusted in accordance with the intensity of the light source or the required dose.
    Type: Application
    Filed: July 4, 2004
    Publication date: July 14, 2005
    Inventors: Hung-Chi Wang, Chung-Ming Kuo
  • Patent number: 6914732
    Abstract: The present invention provides a support stand. The support stand includes at least one H-beam set between a light source of an exposure machine and an operating machine of that to support an optical axis of the exposure machine, at least one supporting element set on a first part of the H-beam, a signal emitter set on a second part of the H-beam, and a signal receiver, receiving a signal sent from the signal emitter, set on a third part of the H-beam. The signal emitter and the signal receiver are used for detecting an optical axis shift.
    Type: Grant
    Filed: August 8, 2004
    Date of Patent: July 5, 2005
    Assignee: Powerchip Semiconductor Corp.
    Inventors: Hung-Chi Wang, Mou-Sirn Chen, Chung-Ming Kuo
  • Patent number: D539790
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: April 3, 2007
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventor: Hung-Chi Wang
  • Patent number: D616366
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: May 25, 2010
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Hung-Chi Wang, Chin-Te Chiu, Ning-Lang Cheng, Mei-Chuan Yang