Patents by Inventor George Chang

George Chang 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).

  • Patent number: 7538395
    Abstract: In one embodiment, the ESD device uses highly doped P and N regions deep within the ESD device to form a zener diode that has a controlled breakdown voltage.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: May 26, 2009
    Assignee: Semiconductor Components Industries, L.L.C.
    Inventors: Thomas Keena, Ki Chang, Francine Y. Robb, Mingjiao Liu, Ali Salih, John Michael Parsey, Jr., George Chang
  • Publication number: 20090079022
    Abstract: In one embodiment, the ESD device uses highly doped P and N regions deep within the ESD device to form a zener diode that has a controlled breakdown voltage.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 26, 2009
    Inventors: Thomas Keena, Ki Chang, Francine Y. Robb, Mingjiao Liu, Ali Salih, John Michael Parsey, JR., George Chang
  • Publication number: 20080258210
    Abstract: A semiconductor component resistant to the formation of a parasitic bipolar transistor and a method for manufacturing the semiconductor component using a reduced number of masking steps. A semiconductor material of N-type conductivity having a region of P-type conductivity is provided. A doped region of N-type conductivity is formed in the region of P-type conductivity. Trenches are formed in a semiconductor material and extend through the regions of N-type and P-type conductivities. A field oxide is formed from the semiconductor material such that portions of the trenches extend under the field oxide. The field oxide serves as an implant mask in the formation of source regions. Body contact regions are formed from the semiconductor material and an electrical conductor is formed in contact with the source and body regions. An electrical conductor is formed in contact with the backside of the semiconductor material.
    Type: Application
    Filed: April 20, 2007
    Publication date: October 23, 2008
    Inventors: Prasad Venkatraman, Gordon M. Grivna, Francine Y. Robb, George Chang, Carroll Casteel
  • Patent number: 7319772
    Abstract: A speaker device for improving mid/high-range frequencies includes a magnetic base, a frame annularly mounted to the magnetic base, a cone mounted to an inner side of the frame, a voice coil mounted to the cone and suspended in a gap of the magnetic base, and a deadening phase plug mounted on a central portion of the magnetic base. The magnetic base includes a T-iron, a magnet, and a pole plate. The deadening phase plug is made of a sound-absorbing material for absorbing and eliminating sound waves generated by the voice coil and the cone.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: January 15, 2008
    Inventor: George Chang
  • Publication number: 20070213314
    Abstract: Dibenzyl amine compounds and derivatives, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.
    Type: Application
    Filed: January 3, 2007
    Publication date: September 13, 2007
    Inventors: George Chang, Ravi S. Garigipati, Bruce Lefker, David A. Perry
  • Publication number: 20070213371
    Abstract: Dibenzyl amine compounds and derivatives, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.
    Type: Application
    Filed: January 3, 2007
    Publication date: September 13, 2007
    Inventors: George Chang, Ravi S. Garigipati, Bruce Lefker, David A. Perry, Dongxiang Zeng
  • Publication number: 20060153412
    Abstract: A speaker device for improving mid/high-range frequencies includes a magnetic base, a frame annularly mounted to the magnetic base, a cone mounted to an inner side of the frame, a voice coil mounted to the cone and suspended in a gap of the magnetic base, and a deadening phase plug mounted on a central portion of the magnetic base. The magnetic base includes a T-iron, a magnet, and a pole plate. The deadening phase plug is made of a sound-absorbing material for absorbing and eliminating sound waves generated by the voice coil and the cone.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 13, 2006
    Inventor: George Chang
  • Publication number: 20060122224
    Abstract: Quinoline and quinoxaline compounds, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 8, 2006
    Inventors: Bruce Bechle, George Chang, Mary Diduik, Jari Finneman, Ravi Garigipati, Rayn Kelley, David Perry, Michael Pollastri, Roger Ruggeri
  • Publication number: 20060039216
    Abstract: An integrated circuit memory device has an array of memory cells arranged in a plurality of rows and columns and a plurality of row lines and a plurality of column lines. Cells arranged in the same row are connected by a common row line, and cells arranged in the same column are connected by a common column line. Each cell in the array is addressed by an address signal which has a plurality of bits. A sense amplifier circuit is connectable to one or more of the plurality of column lines of the array. An address input terminal receives in series the plurality of bits of the address signal. Each of the column lines is connectable to a pre-charge voltage, in response to a read command.
    Type: Application
    Filed: July 19, 2004
    Publication date: February 23, 2006
    Inventors: Neal Berger, George Chang, Pearl Cheng, Anne Koh
  • Publication number: 20060039217
    Abstract: An integrated circuit memory device has a plurality of memory cells arranged in a plurality of arrays. Each array has a plurality of rows, and a plurality of column lines, and a plurality of row lines connecting to the memory cells in each array. The memory cell in an array is addressable by a column line and a row line. A column address decoder receives a column address signal and selects one or more column lines of each array in response. A row address decoder receives a row address signal and selects a row line of each array in response. The memory device also has a plurality (k) of sense amplifiers, with one sense amplifier associated with each array, connectable to one or more column lines of the array and receives a signal therefrom supplied from an addressed memory cell. The memory device further has a register; and a control circuit.
    Type: Application
    Filed: August 17, 2004
    Publication date: February 23, 2006
    Inventors: Neal Berger, George Chang, Pearl Cheng, Anne Koh
  • Patent number: 6987118
    Abstract: PPAR alpha activators, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases, in mammals, including humans.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: January 17, 2006
    Assignee: Pfizer Inc.
    Inventor: George Chang
  • Publication number: 20040248934
    Abstract: PPAR alpha activators, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases, in mammals, including humans.
    Type: Application
    Filed: May 5, 2004
    Publication date: December 9, 2004
    Applicant: Pfizer Inc.
    Inventor: George Chang
  • Publication number: 20040132745
    Abstract: The present invention provides inhibitors of microsomal triglyceride transfer protein (MTP) and/or apolipoprotein B (Apo B) secretion having Formula (I) which are useful for the treatment of obesity and related diseases, as well as prevention and treatment of atherosclerosis and its clinical sequelae, for lowering serum lipids, and in the prevention and treatment of related diseases. The invention further relates to pharmaceutical compositions comprising the compounds of the present invention and to methods of treating obesity, atherosclerosis, and related diseases and/or conditions with the compounds of the present invention, either alone or in combination with other medicaments, including lipid-lowering agents.
    Type: Application
    Filed: December 19, 2003
    Publication date: July 8, 2004
    Applicant: Pfizer Inc
    Inventors: Peter Bertinato, Brian S. Bronk, Henry Cheng, George Chang, Bridget M. Cole, Jin Li, Roger B. Ruggeri
  • Patent number: 6735323
    Abstract: A speaker includes a T-shape iron, a ring magnet, a pole plate, a frame, a diaphragm, a coil core portion, a voice coil, a first annular corrugated plate, and at least one second annular corrugated plate. The second annular corrugated plate has is bonded to an inner side or an outer side of an outer section of the first annular corrugated plate and spaced from the coil core portion, thereby increasing a thickness and strength of an outer section of the first annular corrugated plate for bearing higher power such that the speaker generates clear sound and that an inner section of the first annular corrugated plate generates sufficient sound pressure when a power outputted by the speaker is low.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: May 11, 2004
    Assignee: Sun Technique Electric Co., Ltd.
    Inventor: George Chang
  • Patent number: 6486182
    Abstract: This invention relates to mutual prodrugs of amlodipine and atorvastatin and to pharmaceutical compositions thereof. This invention also relates to methods of treating angina pectoris, atherosclerosis, and hypertension and hyperlipidemia in a mammal using those prodrugs and compositions. This invention also relates to methods of managing cardiac risk in a mammal, including humans, presenting with symptoms of cardiac risk by administering those prodrugs and compositions.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: November 26, 2002
    Assignee: Pfizer Inc
    Inventors: George Chang, Ernest S. Hamanaka, John L. LaMattina
  • Patent number: 6262092
    Abstract: This invention relates to a mutual salt of amlodipine and atorvastatin, pharmaceutical compositions thereof and methods of treating angina pectoris, atherosclerosis and combined hypertension and hyperlipidemia in mammals with such a mutual salt and compositions. This invention also relates to methods of managing cardiac risk in a mammal presenting with symptoms of cardiac risk, including humans by administering such a mutual salt and compositions.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: July 17, 2001
    Assignee: Pfizer Inc.
    Inventors: George Chang, Ernest S. Hamanaka
  • Patent number: 6227896
    Abstract: A terminal connection mechanism used in an electroluminescent display structure primarily comprises a display panel housed in a decorative case and a terminal portion provided on the lower end of the display panel to receive a connector affixed by electrical conductive wires. The connector is provided on one side wall face thereof with a resilient locating plate that enables the connector to be detachably secured in position in the case. Thus the terminal connection mechanism according to the invention can provide an electroluminescent display the convenience in connection and separation between a display panel and its electrical conductive wires. It has practical value in industry.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: May 8, 2001
    Inventor: George Chang
  • Patent number: 6146840
    Abstract: The general method involves contacting a bacterial colony with a .beta.-D-galactosidase substrate and a carbon source metabolizable by a plurality of coliform species but not metabolizable by E. coli, and detecting reaction product signals of the substrate and carbon source. Typically, the carbon source is a carbohydrate, preferably adonitol, esculin, salicin, amygdalin, or cellobiose. The absence of both reaction product signals indicates the presence of non-coliform bacteria; the presence of both reaction product signals indicates the presence of non-E. coli coliform bacteria; and, the presence of the .beta.-D-galactosidase substrate reaction product signal and absence of the carbon source reaction product signal indicates the presence of E. coli.A signal may identify a reaction product itself (e.g. a colored product derived from a chromogenic form of the substrate or from a chromogenic reagent which interacts with the product, etc.), or an effect of a reaction product on or at the colony (e.g.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: November 14, 2000
    Assignee: The Regents of the University of California
    Inventors: George Chang, Rosalind Lum
  • Patent number: 6121283
    Abstract: This invention is directed to compounds of formula (I) or the stereoisomers, pharmaceutically acceptable salts and hydrates thereof. The compounds are Apo B/MTP inhibitors and are useful in the treatment of various disorders and conditions such as atherosclerosis, pancreatitis, obesity, hypercholesteremia, hypertriglyceridemia, hyperlipidemia, and diabetes. The compounds of this invention are also useful in combination with other pharmaceutical agents including cholesterol biosynthesis inhibitors and cholesterol absorption inhibitors,especially HMG-CoA reductase inhibitors and HMG-CoA synthase inhibitors; HMG-CoA reductase gene expression inhibitors; CETP inhibitors; bile acid sequestrants; fibrates; cholesterol absorption inhibitors; ACAT inhibitors, squalene synthetase inhibitors, ion-exchange resins, anti-oxidants and niacin.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: September 19, 2000
    Assignee: Pfizer Inc
    Inventors: George Chang, George Joseph Quallich
  • Patent number: 5968950
    Abstract: A hydrochloride salt of an Apo B secretion/MTP inhibitor, methods of making the salt, methods of using the salt and pharmaceutical compositions containing the salt are disclosed.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: October 19, 1999
    Assignee: Pfizer Inc
    Inventors: George J. Quallich, George Chang, Lewin T. Wint