Patents by Inventor Chih Yeh

Chih Yeh 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: 20050035429
    Abstract: An electrically programmable non-volatile memory cell comprises a first electrode, a second electrode and an inter-electrode layer, such as ultra-thin oxide, between the first and second electrodes which is characterized by progressive change in resistance in response to program stress of relatively low voltages. A programmable resistance representing stored data is established by stressing the inter-electrode layer between the electrodes. Embodiments of the memory cell are adapted to store multiple bits of data per cell and/or adapted for programming more than one time without an erase process.
    Type: Application
    Filed: August 15, 2003
    Publication date: February 17, 2005
    Inventors: Chih Yeh, Han Lai, Wen Tsai, Tao Lu, Chih Lu
  • Patent number: 6850014
    Abstract: A discharge lamp circuit for ignition time control and overvoltage protection. The discharge lamp circuit includes drive circuitry, a sensing circuit, a timing circuit and a start-up circuit. The drive circuitry produces a strike voltage for a discharge lamp and provides a lamp current through the discharge lamp. The sensing circuit is provided to detect the lamp current. During lamp start-up, the timing circuit will develop a threshold voltage at the end of a predetermined period if the discharge lamp has not been lit yet, thereby controlling an ignition time of the drive circuitry. The start-up circuit allows the drive circuitry to keep on applying the strike voltage for the ignition time in order to start the discharge lamp before the threshold voltage is developed. Once the sensing circuit detects the absence of the lamp current, the start-up circuit also causes the drive circuitry shutdown.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: February 1, 2005
    Assignee: Benq Corporation
    Inventors: Chia-Chih Yeh, Yung-Yi Hsu
  • Publication number: 20050009630
    Abstract: A golf club head for a metal wood includes a body and a faceplate. The body has a front face having a recess. The faceplate is mounted in the recess and includes on outside plate and an inside faceplate. The outside plate has a thickness that is 1.0 to 2.0 millimeters and is made of high strength material. The inside plate has a thickness that is 0.5 to 1.8 millimeters and is made of high strength material. The inside plate, which is hollow or meshed, is connected to the outside plate. Therefore, the COR of the faceplate will be more consistent, and the faceplate can be fabricated with a large area.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 13, 2005
    Inventors: Chih-Yeh Chao, Chon-Chen Lin
  • Publication number: 20050009629
    Abstract: A golf club head or metal wood includes a body and a faceplate. The body has a face adapted to hit a ball. The faceplate has a sweet spot and a softened region. The softened region is formed around the sweet spot in the faceplate by a heat treatment technique. The treatment technique applies a high-frequency current to induce eddy currents in the faceplate and locally heat the faceplate to form the softened region in the faceplate. This, the golf club head will have a higher coefficient of restitution (COR), and the strength of the faceplate is retained to hit the ball successfully and powerfully.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 13, 2005
    Inventors: Chih-Yeh Chao, Chon-Chen Lin
  • Publication number: 20050006007
    Abstract: A low density iron based alloy for golf club heads consists of essentially 25 to 31 wt % manganese, 7 to 10 wt % aluminum, 5 to 7 wt % chromium, 0.9 to 1.1 wt % carbon and selective addition of 0.8 to 1.5 wt % silicon or 2 to 5 wt % titanium or 0.5 to 1 wt %, molybdenum, wherein the balance being iron. Due to the addition of silicon and chromium, the alloy of the invention has an excellent resistance to corrosion. After the alloy has been forged or cast, and then treated under different operational conditions of thermal treatment over several periods. The alloy with low density, high ductility, excellent resistance to corrosion and good finished surface quality is obtained to satisfy requirements of mechanical properties of heads of golf clubs.
    Type: Application
    Filed: July 11, 2003
    Publication date: January 13, 2005
    Inventor: Chih-Yeh Chao
  • Publication number: 20040197473
    Abstract: An applying method for an adhesive according to an embodiment includes the following steps. First, gas is exhausted from a first exhaust pipe, so as to eliminate a part of the gas in a closed container. Next, the gas continues to be exhausted from the first exhaust pipe, so as to have the adhesive in the transmission pipeline become bubbled, and also to convey the bubbled adhesive to reach the supply vent. Later, gas is exhausted from the second exhaust pipe and continues to be exhausted from the first exhaust pipe, so as to greatly exhaust the gas in the closed container, and also to increase bubbling in the adhesive. Subsequently, the gas continues to be exhausted from the second exhaust pipe and ceases to be exhausted from the first exhaust pipe, so as to cause the adhesive to reach a gasified state. Also the gasified adhesive is supplied to the closed container from the supply vent, so that the gasified adhesive can adhere to and coat above the SiO2 layer.
    Type: Application
    Filed: September 22, 2003
    Publication date: October 7, 2004
    Applicant: MOSEL VITELIC,INC.
    Inventors: Mifong Wu, Chung-Chih Yeh
  • Patent number: 6723007
    Abstract: A face of a golf club head includes a recess defined in the face and a striking pad mounted in the recess. The striking pad is a combination of a high-strength alloy, such as titanium alloy, Fe-Al-Mn alloy steel, marging stainless steel or precipitated stainless steel, and a ceramic or carbides filler, such as the Al2O3, SiO2, TiC, WC. etc., so the striking pad has an excellent reactive force when striking a golf ball and good control of the direction of the golf ball.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: April 20, 2004
    Assignee: O-Ta Precision Casting Co., Ltd.
    Inventor: Chih-Yeh Chao
  • Publication number: 20040032224
    Abstract: A discharge lamp circuit for ignition time control and overvoltage protection. The discharge lamp circuit includes drive circuitry, a sensing circuit, a timing circuit and a start-up circuit. The drive circuitry produces a strike voltage for a discharge lamp and provides a lamp current through the discharge lamp. The sensing circuit is provided to detect the lamp current. During lamp start-up, the timing circuit will develop a threshold voltage at the end of a predetermined period if the discharge lamp has not been lit yet, thereby controlling an ignition time of the drive circuitry. The start-up circuit allows the drive circuitry to keep on applying the strike voltage for the ignition time in order to start the discharge lamp before the threshold voltage is developed. Once the sensing circuit detects the absence of the lamp current, the start-up circuit also causes the drive circuitry shutdown.
    Type: Application
    Filed: July 7, 2003
    Publication date: February 19, 2004
    Applicant: BENQ CORPORATION
    Inventors: Chia-Chih Yeh, Yung-Yi Hsu
  • Publication number: 20040013902
    Abstract: This invention features a compound having the formula: 1
    Type: Application
    Filed: July 9, 2002
    Publication date: January 22, 2004
    Inventors: Chin-Ti Chen, Hsiu-Chih Yeh, Wei-Ching Wu, Li-Hsin Chan
  • Patent number: 6617050
    Abstract: An alloy for golf club head include by weight 25 to 31 wt % manganese, 6.3 to 7.8 wt % aluminum, 0.65 to 0.85 wt % carbon and 5.5 to 9.0 wt % chromium, and the balance being iron. Additions of 0.8 to 1.5 wt % silicon, 2.0 to 5.0 wt % titanium, or 0.5 to 1.0 wt % molybdenum are optionally included in the alloy. Due to the chromium, titanium and molybdenum, the alloy has a good resistance to corrosion, a good finished surface quality after being forged at a temperature from 800° C. to 1050° C. A combination of high ductility and high tensile strength is achieved after the alloy has been treated at a temperature from 980° C. to 1080° C. for 1 to 24 hours.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: September 9, 2003
    Assignee: O-Ta Precision Casting Co., Ltd.
    Inventor: Chih-Yeh Chao
  • Patent number: 6567604
    Abstract: A device capable of receiving an optical fiber through an orifice in the housing of the device. The housing having a gold surface over a substrate material. An indium layer is located on the gold surface. A solder joint is formed with the indium layer covering the gold surface to have indium silver solder surrounding the fiber and maintaining the fiber in a desired position with the housing. The indium layer can be formed of pure indium and the solder joint is formed of indium silver solder having about 97% indium and about 3% silver. The fiber or fibers may be metallized with a pure indium coating. The indium silver solder joint can provide an improved hermetic seal at fiber entrances and exits of the device.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: May 20, 2003
    Assignee: OMM, Inc.
    Inventors: Hsin-chih Yeh, Susant Patra
  • Publication number: 20030082067
    Abstract: A low density iron based alloy for making heads of golf clubs, the alloy consisting of essentially 28.0 to 31.5 wt % manganese, 7.8 to 10.0 wt % aluminum, 0.90 to 1.10 wt % carbon and 0.35 to 2.5 wt % titanium, and the balance being iron. Additions of 0.8 to 1.5 wt % silicon and 5.0 to 7.0 wt % chromium are optionally included in the alloy of the invention. Due to the additions of silicon and chromium, the alloy of the invention has an excellent resistance to corrosion. After the alloy has been forged or plastic worked, and then treated under a temperature from 950 degrees Celsius to 1270 degrees Celsius for 1 to 24 hours, an austenitic phase with (Ti, Fe)Cx precipitated in different content rate, the alloy obtains a low density below 6.6 g/cm3 and distributed within a range of 6.1 to 6.6 g/cm3, therefore the alloy with a low density, a high ductility, excellent resistance to corrosion and good finished surface quality is obtained to satisfy requirements of mechanical properties of heads of golf clubs.
    Type: Application
    Filed: October 25, 2001
    Publication date: May 1, 2003
    Inventor: Chih-Yeh Chao
  • Publication number: 20030077479
    Abstract: An alloy for golf club head include by weight 25 to 31 wt % manganese, 6.3 to 7.8 wt % aluminum, 0.65 to 0.85 wt % carbon and 5.5 to 9.0 wt % chromium, and the balance being iron. Additions of 0.8 to 1.5 wt % silicon, 2.0 to 5.0 wt % titanium, or 0.5 to 1.0 wt % molybdenum are optionally included in the alloy. Due to the chromium, titanium and molybdenum, the alloy has a good resistance to corrosion, a good finished surface quality after being forged at a temperature from 800° C. to 1050° C. A combination of high ductility and high tensile strength is achieved after the alloy has been treated at a temperature from 980° C. to 1080° C. for 1 to 24 hours.
    Type: Application
    Filed: October 19, 2001
    Publication date: April 24, 2003
    Inventor: Chih-Yeh Chao
  • Publication number: 20020102433
    Abstract: A compound of the following formula is described.
    Type: Application
    Filed: November 28, 2001
    Publication date: August 1, 2002
    Inventors: Rong-Ho Lee, Chin-Ti Chen, Hsiu-Chih Yeh, Li-Hsin Chan
  • Patent number: 6342426
    Abstract: A method for protecting stepper alignment marks suitable for a substrate with an alignment mark on a scribe line and a metal layer that will be etched includes the following steps. First, a photoresist layer is formed over the metal layer. Next, a photo mask which has a predefined photo mask pattern for transfer to the metal layer is provided, and a pattern protecting the alignment marks is added to the photo mask pattern. Then, a photolithographic process is performed with the photo mask pattern on the photoresist layer to form the desired transferring photoresist mask to the metal layer and the protective photoresist mask for protecting the alignment marks.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: January 29, 2002
    Assignee: Mosel Vitelic Inc.
    Inventors: Kam-Tung Li, Chung-Chih Yeh
  • Patent number: 5989900
    Abstract: A process for preparing optically active allylic alcohol derivatives comprises reacting a racemic mixture of the following formula I ##STR1## wherein R is alkyl, alkenyl, or substituted or unsubstituted aryl or arylalkyl;with acetate or anhydride under the catalysis of Pseudomonase AK, PS or K-10 lipase in the presence of an organic solvent.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: November 23, 1999
    Assignee: Development Center of Biotechnology
    Inventors: Adam Shih-Yuan Lee, Hsiu-Chih Yeh, Ohm-Guo Pan, Shyh-Fong Chen, Hao Ku
  • Patent number: 5764090
    Abstract: A write-control circuit including a pulse processor and a waveform shifter is disclosed. The pulse processor is provided for processing a first waveform. When the first waveform has a bandwidth wider than a first delay, the waveform goes through the pulse processor without change. Otherwise, a second delay is added to trailing edge of the first waveform. The waveform shifter is provided for shifting the output waveform of the pulse processor as a second waveform. The pulse processor consists of a pulse generator, a trailing edge delay circuit, a NOR gate and an inverter. The pulse generator, which generates a finite-length pulse by the first waveform, includes a delay chain and a NAND gate. The delay chain may consist of an odd number of delay units. The trailing edge delay circuit includes an even number of delay units and a NAND gate for adding the second time delay to the trailing edge of the finite-length pulses.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: June 9, 1998
    Assignee: United Microelectronics Corporation
    Inventors: Wen-Chih Yeh, Hsiao-Yueh Chang
  • Patent number: 5691953
    Abstract: An address buffer for high speed static random-access-memory (SRAM) devices is disclosed. The address buffer includes a buffer stage, an out-phase variable buffer circuit and an in-phase variable buffer circuit. The buffer stage includes a number of series-connected buffer units for transmitting an input address signal. The out-phase variable buffer circuit is connected to the buffer stage for providing a first buffer condition in a write period and for providing a second buffer condition in a read period. The in-phase variable buffer circuit is also connected to the buffer stage for providing a third buffer condition in the write period and for providing a fourth buffer condition in the read period. An external address signal can be delayed by the various buffer conditions of the address buffer during the write period to optimize the operation of the SRAM devices, and the various buffer conditions will not affect the read period.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: November 25, 1997
    Assignee: United Microelectronics Corporation
    Inventors: Wen Chih Yeh, Hsiao-Yueh Chang
  • Patent number: 5178123
    Abstract: A direction-control device for a tennis-ball shooter having a mount plate on which two motors are mounted for driving two wheels which together control a speed and a spinning extent of a tennis ball to be served. The direction-control device includes a first bar extending along a Z-axis and drivable by a first motor to allow a pivotal movement of the mount plate on a Y-Z plane about an X-axis upon a restricted rotational movement of the first motor, thereby controlling the served tennis ball to fall in front of or behind the practicer. The device-control device further includes a second bar having a first end attached to the mount plate and a second end drivably attached to a second motor to allow a pivotal movement of the mount plate on a Z-X plane about a Y-axis upon a restricted rotational movement of the second motor, thereby controlling the spinning axis of the tennis ball to be served.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: January 12, 1993
    Inventor: I-Chih Yeh