Patents by Inventor Wu Chen

Wu 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: 20070251869
    Abstract: A novel chromatographic stationary phase for reversed-phase high performance liquid chromatography (HPLC) is provided. By using mono and dimethyl silanes as endcapping reagents as compared with the use of traditional trimethyl silanes, an improved blocking of unreacted surface silanols is achieved. The improved blocking of surface silanols results in at least better peak shape and more reproducible retention times in reversed-phase HPLC analyses.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Inventor: Wu Chen
  • Publication number: 20070090052
    Abstract: Provided is a composition of matter comprising a chromatographic stationary phase. The chromatographic stationary phase has bonded thereto, two different active silyl moieties. By combining two different active moieties on the same solid support, the activity of the chromatographic stationary phase can be tailored to a particular application. The active silyl moieties may be substituted or unsubstituted.
    Type: Application
    Filed: October 20, 2005
    Publication date: April 26, 2007
    Inventors: Alan Broske, Wu Chen, Brian Bildingmeyer
  • Publication number: 20070089604
    Abstract: A composition of matter is provided comprising a metal oxide or metalloid oxide substrate, ?, having a surface that is covalently bonded to a silyl moiety according to Formula: —Si(R1)n(X)m(Y)q wherein R1, X, m, n, Y and q are defined herein.
    Type: Application
    Filed: October 20, 2005
    Publication date: April 26, 2007
    Inventors: Wu Chen, William Barber
  • Publication number: 20070090034
    Abstract: A substrate for retaining a particulate packing medium within a chromatography column is disclosed. The substrate is formed from a polymer material and positionable to retain the packing medium within the column. The polymer has pores sized to retain the packing medium within the column but allow fluid, such as transport liquid or carrier gas to pass through. A method of forming the substrate within the column is also disclosed. The method includes placing a polymer precursor into the column and then polymerizing it to form the substrate.
    Type: Application
    Filed: October 20, 2005
    Publication date: April 26, 2007
    Applicant: Agilent Technologies, Inc.
    Inventors: Robert Ricker, John Harland, Alan Broske, Wu Chen, Bernard Permar
  • Patent number: 7203528
    Abstract: A mobile phone has a circuit board and a connector capable of assembling both a microphone and a coin battery. The connector includes an insulative body having a first engaging sink for positioning the microphone and a second engaging sink for positioning the coin battery. The connector has a first, second, and third conductive terminals for connecting the microphone and the circuit board, and a fourth and fifth conductive terminals for connecting the coin battery and the circuit board.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: April 10, 2007
    Assignee: BenQ Corporation
    Inventors: Hsiao-Wu Chen, Wei-Ting Liu
  • Patent number: 7158425
    Abstract: A memory device that has an internal memory array provides timing signals to control the output timing of one or more redundant memory blocks that substitute for defective memory blocks in the internal memory array. In one embodiment, the internal memory array includes a pipelined output stage, and the timing signals ensure that the data is output from the memory devices in the order memory access requests are issued, even when the latency of the redundant memory blocks is less than the latency of the main memory array by up to two clock periods. In one embodiment, a FIFO memory queues the output data of the redundant memory blocks waiting to be output.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: January 2, 2007
    Assignee: Mosaic Systems, Inc.
    Inventors: Chao-Wu Chen, Richard Roy, Wasim Khaled
  • Patent number: 7149559
    Abstract: A replaceable panel device has a panel (20), a locking subassembly (30) and a top cover (40). The panel is mounted on the top cover by the locking subassembly. The panel has a mounting hole (24) with a first arc groove (244). The locking subassembly is accommodated in the mounting hole of the panel and has a button (31) with a locking portion (314) and a spring (32). Two ends of the spring respectively contact with a particular portion of the mounting hole and the button. The top cover has a second arc groove (45) which corresponds with the first arc groove of the panel. The locking portion of the button passes through the first groove of the panel and the second groove of the top cover, and mates with the second arc groove by a return force of the spring to fix the panel and the top cover together.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: December 12, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Shui Yuan Qin, Chia-Hua Chen, XingHuang Luo, Jian Wu Chen
  • Patent number: 7095385
    Abstract: The present invention provides an antenna engaging mechanism in a wireless communication device, which has a circuit board. The antenna engaging mechanism comprises a housing that has a nut, an antenna, and an elastic metal piece. The antenna comprises an antenna metal tube and an antenna shell covering one end of the antenna metal tube, wherein the other end has an engaging protrusion column with a taper head and a taper bottom. The elastic metal piece comprises a fixing portion for fixing the elastic metal piece and an elastic arm for holding the engaging protrusion column. While the engaging protrusion column is rotated into the nut of the housing, the taper head holds open the elastic arm. After the taper head passes, the elastic arm springs back due to the elasticity and enables the engagement of the elastic metal piece and the engaging protrusion column at the taper bottom.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: August 22, 2006
    Assignee: BENQ Corporation
    Inventor: Hsiao-Wu Chen
  • Publication number: 20060145495
    Abstract: A finger device for grasping objects is disclosed, which comprises multiple base members and a driving belt. Each base member comprises a main body, a first axle defined in the main body, a second axle defined in the main body, an elastic member and a binding member. The binding member is used for connecting the neighboring main bodies for continuous motion. The elastic member also connects the neighboring main bodies for changing or recovering the relative positions of the main bodies. The first axle and the second axle of one base member are located along a different line from the first axle of another base member, and the driving belt is used for connecting to the first axle and the second axle of each base member. Therefore, as the driving belt is pulled, the relative positions of the main bodies change and the finger device bends.
    Type: Application
    Filed: December 22, 2005
    Publication date: July 6, 2006
    Applicant: Industrial Technology Research Institute
    Inventors: Chih-Hsing Fang, Wen-Nan Huang, Chien-Wu Chen, Chih-Hsin Chen
  • Publication number: 20060086308
    Abstract: A flagpole is disclosed to include a pole, a cap rotatably capped on the top end of the pole to secure the top end of the inner side edge of a flag, a barrel rotatably sleeved onto the pole and spaced below the cap to secure the bottom end of the inner side edge of the flag held by the cap, and a link connected between the cap and the barrel for enabling the cap and the barrel to be synchronously turned about the pole to prevent winding of the flag round the pole when the flag is flying in the air.
    Type: Application
    Filed: December 16, 2004
    Publication date: April 27, 2006
    Inventor: Wu Chen
  • Publication number: 20060076296
    Abstract: The invention provides novel materials for chromatography and chromatography columns. The invention provides a monofunctional silane or a mixture of two or three monofunctional silanes chemically bonded to a substrate, at least one monofunctional silane having at least one unsaturated hydrocarbon group, R?, covalently attached to the substrate, containing the silane structure is of form: Where R? is independently selected from the group consisting of alkenyl, alkynyl, and phenyl, R? is selected from the group consisting of alkyl, substitute alkyl, alkenyl, substitute alkenyl, alkynyl, and aryl, substitute aryl, R is selected from the group consisting of alkyl, substitute alkyl, alkenyl, substitute alkenyl, alkynyl, and aryl, substitute aryl, alkylamine, amide, ether, alcohol, carbamate, ester, an anion exchanger, and a cation exchange. Methods for manufacture and design of the columns are also provided and disclosed.
    Type: Application
    Filed: October 13, 2004
    Publication date: April 13, 2006
    Inventor: Wu Chen
  • Publication number: 20060046797
    Abstract: A slidable and automatic rotatable apparatus disposed in a portable electronic device and providing the portable electronic device, which includes a first housing and a second housing, with a first status and a second status is provided. The apparatus includes a third housing, a protruding part disposed on the second housing and opposite to the first track, and a rotary module passing through the second track. The third housing, which is fixed on the first housing and movably connected with the second housing, includes a first track, a second track, and a first rib disposed on a first side of the second track. A first end of the rotary module is fixed on the second housing, while a second end is disposed between the first housing and the third housing. The rotary module has at least one protruding point positioned at the second end for contacting the first rib.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 2, 2006
    Inventor: Hsiao-Wu Chen
  • Patent number: 6963517
    Abstract: A method is disclosed to carry out a data access operation in a data memory device that is subdivided into a plurality of memory arrays each array includes a plurality of memory cells accessible by an identifiable address. The method includes a step of asynchronously propagating in parallel a plurality of data access signals, each through a data access path over multiple propagation stages of signal lines interconnected between the memory arrays and each of the multiple propagation stages implementing an asynchronous local clock for receiving and sending said data access signals for carrying out said data access operation. The method further includes a step of adding a path delay in a selected set of the propagation stages to minimize a length of time difference in carrying out the data access operations through each of the different data access paths.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: November 8, 2005
    Inventor: Chao-wu Chen
  • Publication number: 20050242038
    Abstract: The invention provides novel materials for chromatography and chromatography columns. The invention provides a monofunctional silane chemically bonded to a substrate, the monofunctional silane has two groups, R, and R?, the monofunctional silane being of the form: where the R groups are independently selected from the group consisting of alkenyl, alkynyl, and phenyl, R? is selected form the group consisting of alkyl, substituted alkyl, alkenyl, substituted alkenyl, aryl, substituted aryl, alkylamine, amide, ether, alcohol, cabamate, ester, an anion exchanger, and a cation exchange. Methods for manufacture and design of the columns are also provided and disclosed.
    Type: Application
    Filed: April 30, 2004
    Publication date: November 3, 2005
    Inventor: Wu Chen
  • Patent number: 6937055
    Abstract: A programmable input/output buffer has a first plurality of pull-down transistors connected between a supply voltage and an electrical system conductor on the integrated circuit and a second plurality of pull-down transistors connected between the electrical conductor and the system reference voltage. Reference circuits generate signals to turn on a first number of said first plurality of pull-up transistors and/or a second number of said second plurality of pull-down transistors to provide an input/output buffer impedance matching the impedance of the external transmission line either sending a signal to the programmable input/output buffer or receiving a signal from the programmable input/output buffer.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: August 30, 2005
    Assignee: Mosaic Systems, Inc.
    Inventors: Richard Stephen Roy, Ali Massoumi, Chao-Wu Chen
  • Patent number: 6929878
    Abstract: A battery cover assembly includes a battery cover (3) defining a pair of guide rails (326) in an inner surface of the battery cover, a connecting member (2), a housing (1) defining a receiving slot (164) and a battery-receiving compartment (194), a plurality of springs (5, 7), a plurality of sleeves (6), a number of locking pins (7), and an antenna rod (4). The connecting member is loosely received in the guide rails along a lateral direction. Each sleeve includes a first through hole and a second through hole. The connecting member is engaged with each sleeve by using each locking pin inserting into a folded arm of the connecting member and the first through hole, and the antenna rod inserts through the through hole of the sleeve and the receiving slot, such that the battery cover is pivotably connected with the housing.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: August 16, 2005
    Assignee: Fih Co., Ltd.
    Inventors: Jian Wu Chen, Ying Liang Tu, Chia-Hua Chen
  • Patent number: 6896241
    Abstract: A faucet includes a valve tube journalled within a faucet body, and a discharge spout connected fixedly to an open end of the tube. A discharge end of the spout can be pushed upwardly to turn the spout from a discharging position, where an opening in the tube comes into alignment with a water inlet in the faucet body so that a maximum amount of water can flow downwardly from the discharge end, to a non-discharging position, where the opening is not fluidly communicated with the water inlet so as to stop flow of water from the discharge end. Because there is still water flowing from the discharge end when the spout is rotated from the discharging position to the non-discharging position, contamination of the user's hands due to contact with the discharge end after washing can be prevented.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: May 24, 2005
    Assignee: Hui-Lin Chen
    Inventors: Hui-Lin Chen, Sung-Wu Chen
  • Patent number: 6871568
    Abstract: A hand-held framing tool includes a handle, a cover shell, and a guide member. The handle includes a coupling portion at an end thereof and a bar member protruded outwards from the coupling portion and fitted with a spring. The cover shell includes a chamber inside at a front end thereof and a guide hole positioned at a bottom side of the chamber. The guide member includes a stopping portion at an end thereof and a plurality of guide ditches extended longitudinally along an inner periphery of a hollow space thereof. The guide member is fitted in the guide hole of the cover shell. The bar member of the handle runs through the hollow space of the guide member. The spring contacts against the stopping portion of the guide member at an end thereof and contacts against the coupling portion of the handle at the other end thereof.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: March 29, 2005
    Inventor: Chung-Wu Chen
  • Publication number: 20050062675
    Abstract: The present invention provides an antenna engaging mechanism in a wireless communication device, which has a circuit board. The antenna engaging mechanism comprises a housing that has a nut, an antenna, and an elastic metal piece. The antenna comprises an antenna metal tube and an antenna shell covering one end of the antenna metal tube, wherein the other end has an engaging protrusion column with a taper head and a taper bottom. The elastic metal piece comprises a fixing portion for fixing the elastic metal piece and an elastic arm for holding the engaging protrusion column. While the engaging protrusion column is rotated into the nut of the housing, the taper head holds open the elastic arm. After the taper head passes, the elastic arm springs back due to the elasticity and enables the engagement of the elastic metal piece and the engaging protrusion column at the taper bottom.
    Type: Application
    Filed: September 23, 2004
    Publication date: March 24, 2005
    Inventor: Hsiao-Wu Chen
  • Patent number: 6865778
    Abstract: A hinge mechanism for pivotally connecting a flip onto a housing includes a bush, a spring, and a camshaft. The bush is connected to the flip and has a sidewall, a receiving space defined by the sidewall, and a protrusion. The protrusion is protruded from the sidewall. The camshaft has a first end, a second end, and a shaped notch. The shaped notch includes a first concave portion and a second concave portion, and the protrusion is slidably received within the shaped notch. The first end of the camshaft is slidably coupled to the bush, and the second end of the camshaft is restrictedly coupled to the housing. When the flip is pivoted on the housing, the bush simultaneously rotates around the pivoting axis of the hinge mechanism so that the protrusion slides within the shaped notch from the first concave portion to the second concave portion.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: March 15, 2005
    Assignee: BenQ Corporation
    Inventors: Long-Jyh Pan, Hsiao-Wu Chen