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).

  • Publication number: 20060087492
    Abstract: 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: Application
    Filed: September 1, 2004
    Publication date: April 27, 2006
    Inventors: Li-Sen Chen, Chien-Yu Hsu, Chang-Yi Li
  • Publication number: 20060084288
    Abstract: 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: Application
    Filed: October 19, 2004
    Publication date: April 20, 2006
    Inventors: Ping Chuang, Li-Sen Chen, Chien-Yu Hsu
  • Publication number: 20060072285
    Abstract: 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: Application
    Filed: October 4, 2004
    Publication date: April 6, 2006
    Inventors: Chia-Wei Liao, Cheng-Sung Li, Li-Sen Chen
  • Patent number: 7021941
    Abstract: 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: Grant
    Filed: October 19, 2004
    Date of Patent: April 4, 2006
    Assignee: Speed Tech Corp.
    Inventors: Ping Chuang, Li-Sen Chen, Chien-Yu Hsu
  • Publication number: 20060037847
    Abstract: 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: Application
    Filed: August 18, 2004
    Publication date: February 23, 2006
    Inventors: Chien-Yu Hsu, Chang Yili, Li-Sen Chen
  • Patent number: 6967293
    Abstract: 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: Grant
    Filed: July 21, 2004
    Date of Patent: November 22, 2005
    Assignee: Speed Tech Corp.
    Inventors: Li-Sen Chen, Chien-Yu Hsu, Chang-Yi Li
  • Patent number: 6948945
    Abstract: 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: Grant
    Filed: March 12, 2004
    Date of Patent: September 27, 2005
    Assignee: Speed Tech Corp.
    Inventors: Li-Sen Chen, Chien-Yu Hsu, Yen-Jang Liao
  • Patent number: 6947002
    Abstract: 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: Grant
    Filed: October 27, 2004
    Date of Patent: September 20, 2005
    Assignee: Speed Tech Corp.
    Inventors: Li-Sen Chen, Chieh-Lin Tseng, Lun-Ting Liu, Yen-Jang Liao, Wen-Tsung Hsiao
  • Patent number: 6875025
    Abstract: 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: Grant
    Filed: October 7, 2003
    Date of Patent: April 5, 2005
    Assignee: Speed Tech Corp.
    Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
  • Patent number: 6872082
    Abstract: 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: Grant
    Filed: August 14, 2003
    Date of Patent: March 29, 2005
    Assignee: Speed Tech Corp.
    Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
  • Publication number: 20050052853
    Abstract: 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: Application
    Filed: September 4, 2003
    Publication date: March 10, 2005
    Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
  • Patent number: 6859370
    Abstract: 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: Grant
    Filed: September 4, 2003
    Date of Patent: February 22, 2005
    Assignee: Speed Tech Corp.
    Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
  • Publication number: 20050037650
    Abstract: 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: Application
    Filed: October 7, 2003
    Publication date: February 17, 2005
    Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
  • Publication number: 20050037641
    Abstract: 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: Application
    Filed: March 12, 2004
    Publication date: February 17, 2005
    Applicant: SPEED TECH CORP.
    Inventors: Li-Sen Chen, Chien-Yu Hsu, Yen-Jang Liao
  • Publication number: 20050037635
    Abstract: 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: Application
    Filed: August 14, 2003
    Publication date: February 17, 2005
    Inventors: Chien-Yu Hsu, Yen-Jang Liao, Li-Sen Chen
  • Patent number: 6705897
    Abstract: 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: Grant
    Filed: June 24, 2003
    Date of Patent: March 16, 2004
    Assignee: Industrial Technology Research Institute
    Inventors: Li-Sen Chen, Ben-Hwa Jang, Chao-Tsu Chen
  • Publication number: 20030232539
    Abstract: 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: Application
    Filed: June 24, 2003
    Publication date: December 18, 2003
    Applicant: Industrial Technology Research Institute
    Inventors: Li-Sen Chen, Ben-Hwa Jang, Chao-Tsu Chen
  • Patent number: 6609934
    Abstract: 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: Grant
    Filed: December 3, 2001
    Date of Patent: August 26, 2003
    Assignee: Industrial Technology Research Institute
    Inventors: Li-Sen Chen, Ben-Hwa Jang, Chao-Tsu Chen
  • Publication number: 20030104727
    Abstract: 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: Application
    Filed: December 3, 2001
    Publication date: June 5, 2003
    Inventors: Li-Sen Chen, Ben-Hwa Jang, Chao-Tsu Chen
  • Patent number: 6276951
    Abstract: 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: Grant
    Filed: November 18, 1999
    Date of Patent: August 21, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Li-Sen Chen, Ching-Huei Lin, Chung-Hsin Huang, Hung-Kuang Yang, Chien-Yu Hsu