Patents by Inventor Chung-Kai Wang
Chung-Kai 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).
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Patent number: 8136810Abstract: A sheet alignment and ejection mechanism includes a sheet alignment device, a sheet ejection device, a power device and a transmission unit. The sheet alignment device includes a first one-way element. The sheet ejection device includes a second one-way element. The transmission unit includes plural gears. The transmission unit is connected with the power device, the first one-way element and the second one-way element for driving rotation of the first one-way element and the second one-way element. The first one-way element and the second one-way element are rotated in opposite directions. When the first one-way element is rotated in a first direction, the sheets aligned on a sheet placement tray are aligned by the sheet alignment device. When the second one-way element is rotated in the first direction, the stapled sheets are ejected out of the sheet placement tray by the sheet ejection device.Type: GrantFiled: June 14, 2011Date of Patent: March 20, 2012Assignee: Primax Electronics Ltd.Inventors: Ching-Tse Wang, Chung-Kai Wang, Ming-Han Chiu
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Publication number: 20120032328Abstract: A method for packaging semiconductor device is provided, which comprises: providing a carrier substrate having a top surface and a back surface, a circuit arrangement on the top surface of the carrier substrate, and a through hole is disposed near the center of the carrier substrate and is formed passed through the carrier substrate; providing a chip having an active surface and a back surface, a plurality of pads is disposed on the periphery of the active surface and a plurality of connecting elements is disposed thereon; the active surface of chip is flipped and bonded on the circuit arrangement on the top surface of the carrier substrate, and the plurality of connecting elements is not covering the through hole; filling the underfilling material to encapsulate between the plurality of connecting elements and the top surface of the carrier substrate and to fill with the through hole; and performing a suction process to remove the air within the underfilling material between the plurality of connecting elemeType: ApplicationFiled: September 23, 2010Publication date: February 9, 2012Applicant: Global Unichip CorporationInventors: Yu-Yu Lin, Chung-Kai Wang, Li-Hua Lin
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Publication number: 20120027484Abstract: An image forming apparatus with a stapling function is provided. The image forming apparatus includes a printing device and a stapling device. The printing device is used for printing images on plural papers. The printed papers are transmitted to the stapling device and stapled by the stapling device. The printing device has a printing device casing. The stapling device includes a minor casing and a main casing, which are respectively connected with a first surface and a second surface of the printing device casing. Since the stapling device is connected with two difference surfaces of the printing device casing, the overall height of the image forming apparatus is reduced.Type: ApplicationFiled: January 4, 2011Publication date: February 2, 2012Applicant: PRIMAX ELECTRONICS LTD.Inventors: Chung-Kai Wang, Ching-Tse Wang, Ming-Han Chiu
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Publication number: 20120018884Abstract: The present invention provides a semiconductor package structure, which includes a substrate having a top surface and a back surface, a plurality of first connecting points on the top surface and a plurality of second connecting points on the back surface; a chip having an active surface and back surface, a plurality of pads on the active surface, and the chip is attached on the top surface of the substrate; a plurality of wires is electrically connected the plurality of pads on the active surface of the chip with the plurality of first connecting points on the top surface of substrate; a first encapsulant is filled to cover portion of the plurality of wires, the chip, and the portion of top surface of the substrate; a second encapsulate is filled to cover the first encapsulant, the plurality of wires and is formed on portion of the top surface of the substrate, in which the Yang's module of the second encapsulant is different with that of the first encapsulant; and a plurality of connecting components is disType: ApplicationFiled: September 23, 2010Publication date: January 26, 2012Applicant: Global Unichip CorporationInventors: Yu-Yu Lin, Li-Hua Lin, Chung-Kai Wang
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Patent number: 8096545Abstract: A sheet-feeding scanning apparatus having a business card feeding mechanism is provided. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, a transfer channel, a plurality of transfer rollers, an ejecting tray, an ejecting roller assembly, a business card input tray, and a business card pick-up roller assembly. The business card input tray includes a business card support plate, a spring, a separation slice and a position-limiting glide slot. The business card pick-up roller assembly includes a business card pick-up roller, a business card separation roller and a shaft rod. The shaft rod is sheathed by the business card separation roller. The sheet-feeding scanning apparatus is adapted for scanning images of multiple ordinary documents or multiple business cards.Type: GrantFiled: September 5, 2008Date of Patent: January 17, 2012Assignee: Primax Electronics Ltd.Inventors: Chung-Kai Wang, Wei-Hsun Hsu, Wen-An Huang, Chao-Min Yang
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Patent number: 8061703Abstract: A sheet-feeding type scanning apparatus and an automatic sheet feeding method are provided. The sheet-feeding type scanning apparatus includes a scanning module, a first sheet input tray, a first sheet pick-up roller assembly, a sheet ejecting tray, a sheet transfer channel, a plurality of transfer roller assemblies, a sheet ejecting roller assembly, a sheet-feeding sensor and a clutch module. Once a first sheet article of multiple sheet articles placed on the first sheet input tray are fed into the internal portion of the sheet-feeding type scanning apparatus to trigger the sheet-feeding sensor, the clutch module is disabled. At this moment, a second sheet article placed on the first sheet input tray fails to be fed by the first sheet pick-up roller assembly. Therefore, the double feeding problem is solved.Type: GrantFiled: November 16, 2009Date of Patent: November 22, 2011Assignee: Primax Electronics Ltd.Inventors: Chung-Kai Wang, Chao-Min Yang, Wei-Hsun Hsu, Wen-An Huang
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Patent number: 7971866Abstract: A sheet-feeding scanning apparatus having a business card feeding mechanism is provided. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, an ejecting tray, a transfer channel, a plurality of transfer rollers, a business card input tray, and a business card pick-up roller assembly. The business card input tray has a business card support plate. In a case that a jam event occurs, the business card support plate may be swung for facilitating removing the jammed business card.Type: GrantFiled: September 5, 2008Date of Patent: July 5, 2011Assignee: Primax Electronics Ltd.Inventors: Wen-An Huang, Chung-Kai Wang, Wei-Hsun Hsu, Chao-Min Yang
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Publication number: 20110157897Abstract: A light emitting diode module includes: a printed circuit board including an upper circuit layer, a lower metal layer, an insulating layer, and a plurality of through holes; a metallic heat sink formed with a plurality of chip-support portions and disposed below the printed circuit board; a thermal connection layer that has lower and upper surfaces respectively bonded to the heat sink and the lower metal layer of the printed circuit board; and a plurality of light emitting diode chips, each of which is placed in contact with and bonded to one of the chip-support portions and each of which is electrically connected to the upper circuit layer. A method for making the light emitting diode module is also disclosed.Type: ApplicationFiled: December 15, 2010Publication date: June 30, 2011Applicant: Bright LED Electronics Corp.Inventors: Tsung-Jen Liao, Chung-Kai Wang, Yuan-Hsin Liu, Yao-Tsung Hsu
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Publication number: 20110122331Abstract: A liquid crystal display device includes a liquid crystal display panel and a flexible printed circuit board electrically connected to the liquid crystal display panel. The liquid crystal display panel includes a first substrate and a controller disposed on the first substrate. The controller is accommodated in a space between the first substrate and the flexible printed circuit board, and is covered by the flexible printed circuit board.Type: ApplicationFiled: November 22, 2010Publication date: May 26, 2011Applicant: CHIMEI INNOLUX CORPORATIONInventor: CHUNG-KAI WANG
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Publication number: 20110096378Abstract: A duplex scanning apparatus includes an automatic document feeder and a flatbed scanner. The automatic document feeder includes a first scanning module. The flatbed scanner includes a second scanning module and a first calibration plate. The first calibration plate is disposed on the second scanning module, and includes a calibration plate first end, a calibration plate second end and a calibration plate middle part. A first included angle is defined between the calibration plate first end and the calibration plate middle part, and a second included angle is defined between the calibration plate second end and the calibration plate middle part. As such, each of a distance between the calibration plate first end and the first scanning module and a distance between the calibration plate second end and the first scanning module is shorter than a distance between the calibration plate middle part and the first scanning module.Type: ApplicationFiled: December 8, 2009Publication date: April 28, 2011Applicant: PRIMAX ELECTRONICS LTD.Inventors: Chung-Kai Wang, Cai-Rong Liao, San-Xi Chu
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Patent number: 7896336Abstract: A solenoid valve and an automatic document feeder using the solenoid valve are provided. The solenoid valve includes a valve body, a valve spindle, a spring, a ring-shaped groove and muffling ring. The ring-shaped groove is sheathed around the valve spindle. The muffling ring is disposed within the ring-shaped groove. When the valve body is magnetized to magnetically attract the valve spindle, the valve spindle is moved within the valve body, and the muffling ring collides with the recess inner wall, thereby reducing collision noise.Type: GrantFiled: June 12, 2009Date of Patent: March 1, 2011Assignee: Primax Electronics Ltd.Inventors: Chung-Kai Wang, Wen-An Huang, Chao-Min Yang, Wei-Hsun Hsu
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Publication number: 20110042884Abstract: A sheet feeding apparatus includes a sheet releasing mechanism, a casing, a sheet feeding channel, a sheet pick-up module and a driving shaft. The sheet releasing mechanism includes a control lever and a base. The control lever includes a protruding part. The base includes a first restriction groove and a second restriction groove. When the protruding part is accommodated within the first restriction groove, the sheet releasing mechanism is in a sheet-holding status. When the protruding part is accommodated within the second restriction groove, the sheet releasing mechanism is in a sheet-releasing status.Type: ApplicationFiled: November 16, 2009Publication date: February 24, 2011Applicant: PRIMAX ELECTRONICS LTD.Inventors: Wei-Hsun Hsu, Wen-An Huang, Chao-Min Yang, Chung-Kai Wang
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Publication number: 20110042883Abstract: A sheet-feeding type scanning apparatus and an automatic sheet feeding method are provided. The sheet-feeding type scanning apparatus includes a scanning module, a first sheet input tray, a first sheet pick-up roller assembly, a sheet ejecting tray, a sheet transfer channel, a plurality of transfer roller assemblies, a sheet ejecting roller assembly, a sheet-feeding sensor and a clutch module. Once a first sheet article of multiple sheet articles placed on the first sheet input tray are fed into the internal portion of the sheet-feeding type scanning apparatus to trigger the sheet-feeding sensor, the clutch module is disabled. At this moment, a second sheet article placed on the first sheet input tray fails to be fed by the first sheet pick-up roller assembly. Therefore, the double feeding problem is solved.Type: ApplicationFiled: November 16, 2009Publication date: February 24, 2011Applicant: PRIMAX ELECTRONICS LTD.Inventors: Chung-Kai Wang, Chao-Min Yang, Wei-Hsun Hsu, Wen-An Huang
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Patent number: 7891656Abstract: A sheet feeding apparatus includes a sheet releasing mechanism, a casing, a sheet feeding channel, a sheet pick-up module and a driving shaft. The sheet releasing mechanism includes a control lever and a base. The control lever includes a protruding part. The base includes a first restriction groove and a second restriction groove. When the protruding part is accommodated within the first restriction groove, the sheet releasing mechanism is in a sheet-holding status. When the protruding part is accommodated within the second restriction groove, the sheet releasing mechanism is in a sheet-releasing status.Type: GrantFiled: November 16, 2009Date of Patent: February 22, 2011Assignee: Primax Electronics Ltd.Inventors: Wei-Hsun Hsu, Wen-An Huang, Chao-Min Yang, Chung-Kai Wang
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Patent number: 7864385Abstract: A planar light source for use in a scanning apparatus includes a light-emitting element, a first light-guiding portion and a second light-guiding portion. The light-emitting element is arranged at a side of the scanning platform opposite to the carriage module for providing a source light. The first light-guiding portion is disposed at a first side of the light-emitting element for diffusing the source light as a first planar light to be provided for a carriage module through a scanning platform of the scanning apparatus. The second light-guiding portion is disposed at a second side of the light-emitting element opposite to the first side for diffusing the source light as a second planar light to be provided for the carriage module through the scanning platform.Type: GrantFiled: April 28, 2005Date of Patent: January 4, 2011Inventors: Chung-Kai Wang, Chien-Kuo Kuan
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Publication number: 20100276865Abstract: A solenoid valve and an automatic document feeder using the solenoid valve are provided. The solenoid valve includes a valve body, a valve spindle, a spring, a ring-shaped groove and muffling ring. The ring-shaped groove is sheathed around the valve spindle. The muffling ring is disposed within the ring-shaped groove. When the valve body is magnetized to magnetically attract the valve spindle, the valve spindle is moved within the valve body, and the muffling ring collides with the recess inner wall, thereby reducing collision noise.Type: ApplicationFiled: June 12, 2009Publication date: November 4, 2010Applicant: PRIMAX ELECTRONICS LTD.Inventors: Chung-Kai Wang, Wen-An Huang, Chao-Min Yang, Wei-Hsun Hsu
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Patent number: 7806397Abstract: The present invention relates to a sheet-feeding scanning apparatus having a business card feeding mechanism. The sheet-feeding scanning apparatus is adapted for scanning an image of an ordinary document or a business card. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, an ejecting tray, a first channel, a second channel, a transfer roller assembly, a business card input tray and a business card pick-up roller assembly. The business card feeding mechanism can provide a relatively flat feeding and scanning channel for the business card such that the bending degree of the business card during transportation is reduced.Type: GrantFiled: August 25, 2008Date of Patent: October 5, 2010Assignee: Primax Electronics Ltd.Inventors: Chung-Kai Wang, Chao-Min Yang, Wen-An Huang, Wei-Hsun Hsu
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Publication number: 20100014128Abstract: A sheet-feeding scanning apparatus having a business card feeding mechanism is provided. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, an ejecting tray, a transfer channel, a plurality of transfer rollers, a business card input tray, and a business card pick-up roller assembly. The business card input tray has a business card support plate. In a case that a jam event occurs, the business card support plate may be swung for facilitating removing the jammed business card.Type: ApplicationFiled: September 5, 2008Publication date: January 21, 2010Applicant: PRIMAX ELECTRONICS LTD.Inventors: Wen-An Huang, Chung-Kai Wang, Wei-Hsun Hsu, Chao-Min Yang
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Publication number: 20100007931Abstract: A sheet-feeding scanning apparatus having a business card feeding mechanism is provided. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, a transfer channel, a plurality of transfer rollers, an ejecting tray, an ejecting roller assembly, a business card input tray, and a business card pick-up roller assembly. The business card input tray includes a business card support plate, a spring, a separation slice and a position-limiting glide slot. The business card pick-up roller assembly includes a business card pick-up roller, a business card separation roller and a shaft rod. The shaft rod is sheathed by the business card separation roller. The sheet-feeding scanning apparatus is adapted for scanning images of multiple ordinary documents or multiple business cards.Type: ApplicationFiled: September 5, 2008Publication date: January 14, 2010Applicant: PRIMAX ELECTRONICS LTD.Inventors: Chung-Kai Wang, Wei-Hsun Hsu, Wen-An Huang, Chao-Min Yang
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Publication number: 20090315247Abstract: The present invention relates to a sheet-feeding scanning apparatus having a business card feeding mechanism. The sheet-feeding scanning apparatus is adapted for scanning an image of an ordinary document or a business card. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, an ejecting tray, a first channel, a second channel, a transfer roller assembly, a business card input tray and a business card pick-up roller assembly. The business card feeding mechanism can provide a relatively flat feeding and scanning channel for the business card such that the bending degree of the business card during transportation is reduced.Type: ApplicationFiled: August 25, 2008Publication date: December 24, 2009Applicant: PRIMAX ELECTRONICS LTD.Inventors: Chung-Kai Wang, Chao-Min Yang, Wen-An Huang, Wei-Hsun Hsu