Patents by Inventor Li-Sen Chen
Li-Sen Chen 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: 20060087492Abstract: The present invention is a fixture device for roller construction module, comprising a base plate and a frame. The frame comprises a containing hollow to contain the base plate; and protruding parts deposited on two opposite sides of the containing hollow. The base plate comprises fillisters deposited on two opposite sides of the base plate, which are corresponding to the two protruding parts of the frame; and a roller suspended by a support. Accordingly, the module can be easily positioned and assembled.Type: ApplicationFiled: September 1, 2004Publication date: April 27, 2006Inventors: Li-Sen Chen, Chien-Yu Hsu, Chang-Yi Li
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Publication number: 20060084288Abstract: An LGA connector is used to interconnect an LGA package and a printed circuit board. The LGA connector includes an elastomeric body with a plurality of through-holes. Metal films are formed on inner walls of through-holes and splay out around the mouths of their upper and lower openings. The metal films are formed by vacuum metallization, sputtering, chemical plating, electrical plating or PVD. The through-holes have a funnel-like shape to absorb external stresses and redirect the stress to shrink the through-hole diameters. Moreover, the metal films' elastic deformation is larger than conventional metal conductive fillers so as to improve reliability.Type: ApplicationFiled: October 19, 2004Publication date: April 20, 2006Inventors: Ping Chuang, Li-Sen Chen, Chien-Yu Hsu
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Publication number: 20060072285Abstract: The present invention provides a handset sliding structure for mobile devices comprising a cover, a base and a slider. Therein, a surface of the base comprises two opposing sliding tracks having a narrow section, the shortest distance between them. The cover is slid on the base along the sliding tracks with a slider in between. The slider comprises an elastic member and two ends abutting against the two opposing sliding tracks. Sliding the cover, it can be automatically moved to a predestined end position for opening or closing.Type: ApplicationFiled: October 4, 2004Publication date: April 6, 2006Inventors: Chia-Wei Liao, Cheng-Sung Li, Li-Sen Chen
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Patent number: 7021941Abstract: An LGA connector is used to interconnect an LGA package and a printed circuit board. The LGA connector includes an elastomeric body with a plurality of through-holes. Metal films are formed on inner walls of through-holes and splay out around the mouths of their upper and lower openings. The metal films are formed by vacuum metallization, sputtering, chemical plating, electrical plating or PVD. The through-holes have a funnel-like shape to absorb external stresses and redirect the stress to shrink the through-hole diameters. Moreover, the metal films' elastic deformation is larger than conventional metal conductive fillers so as to improve reliability.Type: GrantFiled: October 19, 2004Date of Patent: April 4, 2006Assignee: Speed Tech Corp.Inventors: Ping Chuang, Li-Sen Chen, Chien-Yu Hsu
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Publication number: 20060037847Abstract: The present invention is a mobile device having an improved roller feel, comprising a hollow metal cylinder, a support and a plurality of terminals disposed firmly on the support. The hollow metal cylinder comprises a plurality of interference areas at an end of the hollow metal cylinder. The support comprises two braces. The terminals comprises a plurality of spring contacts, where the terminals are in contact with the inner surface of the hollow metal cylinder and at least one of the spring contacts stretches into the hollow metal cylinder in a depth not exceeding the scope of the interference areas. When rolling the hollow metal cylinder, the present invention makes the spring contacts create explicit and regular stress variations to produce a sense of feel. The interactions between the hollow metal cylinder and the spring contacts are enhanced and the sense of feel is more obvious; and the effect of durability is improved.Type: ApplicationFiled: August 18, 2004Publication date: February 23, 2006Inventors: Chien-Yu Hsu, Chang Yili, Li-Sen Chen
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Patent number: 6967293Abstract: The present invention is a roller construction module having an error prevention structure, comprising a base; a roller disposed in said base; two terminals at two opposite ends of the base to be electrically connected with a metal ring in the roller; a first and a second plungers on the bottom surface of the base; a post between the first and the second plungers; a third plunger on the position at the opposite side to the post on the bottom surface; and a first and a second protecting rods at two opposite ends near the third plunger. Based on the above-said structure, the switch at the left or the right side of the roller construction module can be respectively activated, and another switch, at the middle area of the mobile device, can be prevented from being activated simultaneously so that error prevention is achieved.Type: GrantFiled: July 21, 2004Date of Patent: November 22, 2005Assignee: Speed Tech Corp.Inventors: Li-Sen Chen, Chien-Yu Hsu, Chang-Yi Li
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Patent number: 6948945Abstract: A matrix connector includes a first electrically insulative housing and a second electrically insulative housing arranged in a stack with the respective terminal slots respectively aligned, and terminals sets each formed of a movable terminal axially slidably mounted in the terminal slots of the first electrically insulative housing and a terminal holder mounted in the terminal slots of the second electrically insulative housing and clamped on the respective movable terminal for enabling the respective movable terminal to be moved axially relative to the respective terminal holder when maintained in contact with the respective terminal holder.Type: GrantFiled: March 12, 2004Date of Patent: September 27, 2005Assignee: Speed Tech Corp.Inventors: Li-Sen Chen, Chien-Yu Hsu, Yen-Jang Liao
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Patent number: 6947002Abstract: An antenna includes an electrically insulative narrow elongated bracket, a coiled resonant conductor sleeved onto the bracket, a coaxial cable signal line extended out of one end of the bracket, a first metal conducting connecting member fastened to the bracket and connected to one end of the coiled resonant conductor, and a second metal conducting connecting member fastened to outer insulative layer and a tubular braided conducting layer of the signal line to secure the signal line to the bracket and to let the center conductor of the signal line be electrically connected to the first metal conducting connecting member and the resonant conductor.Type: GrantFiled: October 27, 2004Date of Patent: September 20, 2005Assignee: Speed Tech Corp.Inventors: Li-Sen Chen, Chieh-Lin Tseng, Lun-Ting Liu, Yen-Jang Liao, Wen-Tsung Hsiao
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Patent number: 6875025Abstract: A matrix socket includes a first insulating housing, a second insulating housing and a plurality of terminal assemblies. Each terminal assembly has a movable terminal and terminal seat. The first insulating housing and the second insulating housing are corresponding to each other, and have accommodating channels for placing the terminal assemblies therein, so as to enable the movable terminals and the terminal seats become electrically connected in a slidable manner.Type: GrantFiled: October 7, 2003Date of Patent: April 5, 2005Assignee: Speed Tech Corp.Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
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Patent number: 6872082Abstract: A land grid array includes a flat-plate connector plastic housing having a plurality of terminal grooves, and a plurality of terminals having a pair of contact points and disposed in the various terminal grooves, wherein the contact points serve as connecting structures between a circuit board and another circuit board, or between an integrated circuit and a circuit board. Each terminal is formed by bending an integral metal plate, and has a fixing portion, a flexible portion and a signal transmission portion. The terminal is capable of reducing overall stress, such that the signal transmission portion is easily deformed without leaving permanent deformation. Meanwhile, wiping motions by the contact points are performed between a circuit board and another circuit board, or between an integrated circuit and a circuit board for removing oxidized thin-films on contact surfaces involved.Type: GrantFiled: August 14, 2003Date of Patent: March 29, 2005Assignee: Speed Tech Corp.Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
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Publication number: 20050052853Abstract: A board to board array type connector comprising an array type connector, an upper supporting cover, a lower supporting cover, a screw with a bolt and a screw nut; during application, the upper supporting cover is on the top of the upper PCB, the upper pressing area/point presses down on the top of the upper PCB, the lower supporting cover is on the bottom of the lower PCB, the lower pressing area/point presses up on the bottom of the lower PCB; the screw with bolt passes through all the through holes and is fastened with the screw nut on the end to assemble the whole set, the stress is distributed equilibrium to the upper and lower pressing area/point, the pressure is evenly over all the connection pins of the array type connector for better electrical conductivity.Type: ApplicationFiled: September 4, 2003Publication date: March 10, 2005Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
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Patent number: 6859370Abstract: A board to board array type connector comprising an array type connector, an upper supporting cover, a lower supporting cover, a screw with a bolt and a screw nut; during application, the upper supporting cover is on the top of the upper PCB, the upper pressing area/point presses down on the top of the upper PCB, the lower supporting cover is on the bottom of the lower PCB, the lower pressing area/point presses up on the bottom of the lower PCB; the screw with bolt passes through all the through holes and is fastened with the screw nut on the end to assemble the whole set, the stress is distributed equilibrium to the upper and lower pressing area/point, the pressure is evenly over all the connection pins of the array type connector for better electrical conductivity.Type: GrantFiled: September 4, 2003Date of Patent: February 22, 2005Assignee: Speed Tech Corp.Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
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Publication number: 20050037650Abstract: A matrix socket includes a first insulating housing, a second insulating housing and a plurality of terminal assemblies. Each terminal assembly has a movable terminal and a terminal seat. The first insulating housing and the second insulating housing are corresponding to each other, and have accommodating channels for placing the terminal assemblies therein, so as to enable the movable terminals and the terminal seats become electrically connected in a slidable manner.Type: ApplicationFiled: October 7, 2003Publication date: February 17, 2005Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
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Publication number: 20050037641Abstract: A matrix connector includes a first electrically insulative housing and a second electrically insulative housing arranged in a stack with the respective terminal slots respectively aligned, and terminals sets each formed of a movable terminal axially slidably mounted in the terminal slots of the first electrically insulative housing and a terminal holder mounted in the terminal slots of the second electrically insulative housing and clamped on the respective movable terminal for enabling the respective movable terminal to be moved axially relative to the respective terminal holder when maintained in contact with the respective terminal holder.Type: ApplicationFiled: March 12, 2004Publication date: February 17, 2005Applicant: SPEED TECH CORP.Inventors: Li-Sen Chen, Chien-Yu Hsu, Yen-Jang Liao
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Publication number: 20050037635Abstract: A land grid array includes a flat-plate connector plastic housing having a plurality of terminal grooves, and a plurality of terminals having a pair of contact points and disposed in the various terminal grooves, wherein the contact points serve as connecting structures between a circuit board and another circuit board, or between an integrated circuit and a circuit board. Each terminal is formed by bending an integral metal plate, and has a fixing portion, a flexible portion and a signal transmission portion. The terminal is capable of reducing overall stress, such that the signal transmission portion is easily deformed without leaving permanent deformation. Meanwhile, wiping motions by the contact points are performed between a circuit board and another circuit board, or between an integrated circuit and a circuit board for removing oxidized thin-films on contact surfaces involved.Type: ApplicationFiled: August 14, 2003Publication date: February 17, 2005Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
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Patent number: 6705897Abstract: The invention is an electromagnetic shielding component for increasing the effect of electromagnetic shielding at the rear end of an electronic connector. The metal shield shell can be closely connected to the metal shield sheet of a cable through the design of many adjacent strip-like tentacles at the rear end of an electronic connector. Therefore, the assembly precision for the shield shell and the cable can be increased to produce a rear end electromagnetic shielding component with the advantages of easy assembly and prevention of electromagnetic wave leakage.Type: GrantFiled: June 24, 2003Date of Patent: March 16, 2004Assignee: Industrial Technology Research InstituteInventors: Li-Sen Chen, Ben-Hwa Jang, Chao-Tsu Chen
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Publication number: 20030232539Abstract: The invention is an electromagnetic shielding component for increasing the effect of electromagnetic shielding at the rear end of an electronic connector. The metal shield shell can be closely connected to the metal shield sheet of a cable through the design of many adjacent strip-like tentacles at the rear end of an electronic connector. Therefore, the assembly precision for the shield shell and the cable can be increased to produce a rear end electromagnetic shielding component with the advantages of easy assembly and prevention of electromagnetic wave leakage.Type: ApplicationFiled: June 24, 2003Publication date: December 18, 2003Applicant: Industrial Technology Research InstituteInventors: Li-Sen Chen, Ben-Hwa Jang, Chao-Tsu Chen
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Patent number: 6609934Abstract: The invention is an electromagnetic shielding component for increasing the effect of electromagnetic shielding at the rear end of an electronic connector. The metal shield shell can be closely connected to the metal shield sheet of a cable through the design of many adjacent strip-like tentacles at the rear end of an electronic connector. Therefore, the assembly precision for the shield shell and the cable can be increased to produce a rear end electromagnetic shielding component with the advantages of easy assembly and prevention of electromagnetic wave leakage.Type: GrantFiled: December 3, 2001Date of Patent: August 26, 2003Assignee: Industrial Technology Research InstituteInventors: Li-Sen Chen, Ben-Hwa Jang, Chao-Tsu Chen
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Publication number: 20030104727Abstract: The invention is an electromagnetic shielding component for increasing the effect of electromagnetic shielding at the rear end of an electronic connector. The metal shield shell can be closely connected to the metal shield sheet of a cable through the design of many adjacent strip-like tentacles at the rear end of an electronic connector. Therefore, the assembly precision for the shield shell and the cable can be increased to produce a rear end electromagnetic shielding component with the advantages of easy assembly and prevention of electromagnetic wave leakage.Type: ApplicationFiled: December 3, 2001Publication date: June 5, 2003Inventors: Li-Sen Chen, Ben-Hwa Jang, Chao-Tsu Chen
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Patent number: 6276951Abstract: A latching device used in a card edge connector for the installation of an auxiliary card such as a memory module card is disclosed. The card edge connector comprises a receptacle body and two latching devices located at two sides of the receptacle body. The latching device comprises: a movable part including an elongated flat plate having a fixed end and a free end, and a latching member located near to the flexible free end for detachably latching the auxiliary card to be inserted and rotated to its installation position; a fixed part comprising an elongated flat plate, an inserting portion extending from the flat plate for inserting into a mounting hole of the receptacle body, and an inserting/rotating stop extending from the flat plate for limiting depth with respect to the auxiliary card being inserted and angle with respect to the auxiliary card being rotated.Type: GrantFiled: November 18, 1999Date of Patent: August 21, 2001Assignee: Industrial Technology Research InstituteInventors: Li-Sen Chen, Ching-Huei Lin, Chung-Hsin Huang, Hung-Kuang Yang, Chien-Yu Hsu