Patents Represented by Attorney, Agent or Law Firm W. Wayne Liauh
  • Patent number: 6638849
    Abstract: A dual damascene process for forming semiconductor devices containing a copper interconnect and a low-K dielectric layer on a wafer which allows the copper interconnect to be formed subsequent to the formation of the low-K dielectric layer while preventing the low-K dielectric layer from being degraded by a subsequent plasma etching.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: October 28, 2003
    Assignee: Winbond Electronics Corp.
    Inventors: Shao-Yu Ting, Jack Liang, Kuo-Ju Liu
  • Patent number: 6634502
    Abstract: A storage device is used for keeping a plurality of turning parts of a hand tool and is formed of a base and a rotating seat mounted rotatably on the base. The base is provided with a plurality of urging blocks, each being pivoted at a bottom end in a locating slot and provided with two action inclined faces contiguous to and corresponding in inclination to each other. The urging blocks are further provided in the bottom end with two offset inclined faces contiguous to and corresponding in inclination to each other. The turning parts kept in the retaining slots of the rotating seat are urged by the urging blocks to ascend along the action inclined faces of the urging blocks at the time when the rotating seat is turned in relation to the base.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: October 21, 2003
    Inventor: Hong-Chow Yu
  • Patent number: 6626809
    Abstract: A machining center is provided with a cutter depot structure comprising a cutter socket, a cutter disk, and a round machine frame. The cutter socket is rotatably mounted on the periphery of the cutter disk by a retaining pin which is put through an L-shaped rod of the cutter socket. The L-shaped rod is provided with a roller. The cutter disk is provided with an annular stop surface. The round machine frame is provided with a wearproof annular pad having a cut. The cutter socket in motion is confined by the stop surface of the cutter disk and the annular pad of the machine frame such that the cutter socket is kept in the horizontal state. The cutter socket is turned on the retaining pin to facilitate the inverting of the cutter, thereby resulting in reduction in length of a cutter exchanging arm.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: September 30, 2003
    Inventor: Yaw-Der Hwang
  • Patent number: 6619979
    Abstract: A top-contacting insertion socket for flat cable includes a main body formed of a plurality of terminal cavities for each receiving a terminal therein, and a top cover pivotally connected to a top of the main body and upward turnable to expose the terminal cavities and enable easy insertion of a flat cable into the terminal cavities. A space is left between an inner top surface of the main body and internal connecting pins of the terminals for a tongue portion of the top cover to insert thereinto, such that the tongue portion is pressed at a lower side against the internal connecting pins for a lower side of which to electrically contact with a bare upper side of the flat cable located below the internal connecting pins.
    Type: Grant
    Filed: June 1, 2002
    Date of Patent: September 16, 2003
    Inventor: Yen Yu-Feng
  • Patent number: 6621778
    Abstract: This specification discloses an automatic calibration method for the output power of a pickup head for an optical information recording apparatus, which avoids laser diode thermal effects using duty cycle control and obtains the correct conversion function between the output current of a front monitor diode and the output power of the pickup head by curve fitting. This method only needs to measure one set of front monitor diode output current and output power conversion function of the pickup head. The same conversion function is applicable to all pickup heads of the same type. The optical information recording apparatus automatically detects the corresponding parameter for the pickup head. Each optical information recording apparatus can also automatically detect the specific power control parameters for each set of power control channel to obtain the optimal recording characteristics.
    Type: Grant
    Filed: November 24, 2000
    Date of Patent: September 16, 2003
    Assignee: Industrial Technology Research Institute
    Inventors: Shu-Tai Lu, Kuang-Yang Chuang, Jyh-Shong Ju, Feng-Hsiang Lo, Kuo-Ding Shin, Yong-Long Lee, Ching-Ping Kuei
  • Patent number: 6619735
    Abstract: A power-actuated chair-type elevating apparatus for moving a user to a desired position includes a slidable base having an upright lower tube-extended from a top thereof, a table having a downward extended upper tube axially movably covering the lower tube, an elevating mechanism mounted in the upper and lower tubes to elevate or lower the table relative to the base, and a seat pivotally supported on two bent tubes and three links. The bent tubes are fixedly connected at another end to the upper tube. The three links are coaxially and pivotally connected at a first end to one another, and pivotally connected at a second end to the seat, the base, and the upper tube, respectively. When the table is elevated, the seat is also elevated and forward inclined for the user sit thereon to lean against the table without the risk of falling off the seat.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: September 16, 2003
    Assignee: Dynamic Healthtech Inc
    Inventor: Shou Ming-Hwa
  • Patent number: 6602567
    Abstract: A carbon tube containing a carbonized tube wall. The tube wall is consisted of carbonized coating material and trace of fiber residue, and the carbonized coating material is prepared according to a process including the steps of: (a) coating a fiber structure with a carbon-containing coating material to form a coating layer over the fiber structure; (b) removing the fiber structure; and (c) carbonizing the coating layer to form the carbonized tube wall. The fiber structure can be either a two-dimensional or three-dimensional object, and a two-dimensional or three-dimensional device can be prepared accordingly.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: August 5, 2003
    Inventor: Chien-Chung Han
  • Patent number: 6598246
    Abstract: A toilet seat lifting mechanism includes an upstanding base frame, a movable frame pivotally connected at a front end to a top front of the base frame, a toilet seat support pivotally connected at a rear edge to a rear end of the movable frame, and a toilet seat pivotally connected at a rear end to the rear edge of the toilet seat support to flatly position on a top of the toilet seat support. A lifter is mounted to one side of the base frame to gradually lift the rear end of the movable frame, so that the toilet seat support and the toilet seat are forward inclined to gradually move a user sitting on the toilet seat into an upstanding position.
    Type: Grant
    Filed: May 18, 2002
    Date of Patent: July 29, 2003
    Assignee: Dynamic Healthtech Inc.
    Inventor: Eric Shou
  • Patent number: 6580557
    Abstract: The present invention discloses a single lens instantaneous 3D image taking device for the application in digital image taking. The digital image taking device contains a lens, an aperture disk and a single sensor installed and aligned in a straight line. The aperture disk has three off-optical-axis apertures with different angular coordinates that are installed with red, blue, and green filters, respectively, for light to pass through. When light passes through the lens and the three apertures on the aperture disk, it will be projected onto the sensor, giving image and color information from three different perspectives. Finally, through color separation and image correlation, a precise 3D range image and color information can be obtained.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: June 17, 2003
    Assignee: Industrial Technology Research Institute
    Inventor: Ching-Long Huang
  • Patent number: 6577376
    Abstract: The present invention relates to an optical device with a variable numerical aperture (NA), which utilizes special optical properties of a liquid crystal medium. Through the design of external electrodes and a circuit control unit, the refraction index of the liquid crystal medium can be modulated by the external voltage so that the beam passing through the LCD produces diffraction. An optical device with a variable focal point is thus formed by combining this LC diffractive device and an objective lens. So the present invention provides an optical device with focal points of different numerical apertures by varying the external voltage, whereby the device can read optical disks of all specifications.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: June 10, 2003
    Assignee: Industrial Technology Research Institute
    Inventor: Hsi-Fu Shih
  • Patent number: 6556526
    Abstract: The present invention relates to an apparatus and method for analyzing the read-out signal of an optical storage media and is especially suitable for the HF signal read from the digital video disk (DVD), wherein the HF signal comprises many different signals whose periods are integer times of the system period. The present apparatus can be used to record the maximum or minimum values of specific period of signals for further statistical analyses. Furthermore, the AC and DC components of the HF signal can be processed independently and the results will be combined together for further processes. Therefore, it only takes moderate memory capacity and acquisition time to obtain accurate maximum or minimum values of the specific period of signals.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: April 29, 2003
    Assignee: Industrial Technology Research Institute
    Inventors: Shuh-Tai Lu, King Yin Wang, Kuang-Yang Chuang, Ching-Ping Kuei
  • Patent number: 6551916
    Abstract: A bond pad structure for use in wire bonding application during the packaging operation of semiconductor devices which contains a bond frame structure for holding the bond pad in place to prevent bond pad peel-off problem. The bond pad structure is a laminated structure containing a metal bond pad layer, a middle dielectric layer, and an underlying layer formed above a wafer surface. A guard band structure is formed in a spaced apart relationship from the metal bond pad layer which is connected to the underlying layer by a hole-fill. The underlying layer can be a metal layer, a semiconductor layer such as a polysilicon layer, or any material layer which has good adhesion with the hole fill material. The guard band structure exerts a downward force against the middle dielectric layer to help keeping the middle dielectric layer in place.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: April 22, 2003
    Assignee: Winbond Electronics Corp.
    Inventors: Shi-Tron Lin, Chin-Jong Chan
  • Patent number: 6537024
    Abstract: A method of fabricating a pump casing that includes an inlet, an outlet and a pump casing body. The pump casing body has a neck portion that defines a groove. The inlet is formed by stamping a sheet of metal to form a basin-shaped body, wherein the stamping the center portion of the basin-shaped body forms the inlet. Centering the basin-shaped body about a first axis and using one set of roller dies to roll form the basin-shaped body into a pump casing body. The pump casing body includes, starting from the inlet, an inlet end plate, a passage side plate, a motor end plate and a neck portion. Stamping the passage side plate forms the outlet. A set of roller dies include an internal roller die and a mating external roller die, wherein both are rotatably mounted along a second and third axes, respectively, wherein the first, second and third axes are parallel to but spaced from each other.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: March 25, 2003
    Assignee: Industrial Technology Research Institute
    Inventors: Huan-Jan Chien, Kou-Yu Tang, Char-Lie Pen
  • Patent number: 6538585
    Abstract: The present invention pertains to a distance-enhancing coding method that can be applied to digital recording and digital communications. It improves the time-varying maximum transition run method used in a conventional distance-enhancing coding to avoid main error events ±(1,−1) from happening. Under the premise of maintaining a code gain of 1.8 dB, the code rate can be increased from ¾ to ⅘. The invention also provides a method of using an enumeration algorithm and an exhaustive method to search for block codes for distance-enhancing coding, which can find required codes by following specific steps.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: March 25, 2003
    Assignee: Industrial Technology Research Institute
    Inventor: Pi-Hai Liu
  • Patent number: 6535111
    Abstract: A wave-discriminating inductive electronic device includes a special integrated circuit that is inducible by a proximity feeble electromagnetic signal generated by a general mobile phone during receiving and transmitting signals, so that the induced integrated circuit is able to control and drive another integrated circuit that includes voice and motor driving circuits. Voices and vibrations produced by the integrated circuit enable the wave-discriminating inductive electronic device to provide a highly interesting entertaining effect.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: March 18, 2003
    Inventor: Ching-Tien Tsai
  • Patent number: 6527473
    Abstract: A connector is configured to securely hold two twin-column supporting posts of an upper and a lower side supporter of a sectional rack to a linearly connected position. With the connector, the side supporters having twin-column supporting posts of the rack could be assembled from two or more shortened units. The shortened units of side supporters allow the disassembled rack to be packed into a largely reduced volume to facilitate convenient and economical transport and storage of the rack.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: March 4, 2003
    Assignee: Protrend Co., Ltd.
    Inventor: Henry Chen
  • Patent number: D472937
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: April 8, 2003
    Inventor: Chih Chao Chang
  • Patent number: D475684
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: June 10, 2003
    Assignee: Aten International Co., LTD
    Inventor: Kevin Chen
  • Patent number: D476208
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: June 24, 2003
    Inventor: Yung-Jen Lee
  • Patent number: D481922
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: November 11, 2003
    Inventors: Kun-Hsung Yu, Yunn-Pay Chen