Patents by Inventor Yun Shan

Yun Shan 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: 7886092
    Abstract: A keyboard includes a keyboard control circuit, a card reader unit, at least one universal serial bus (USB) interface, a switch, and a BLUETOOTH unit. The USB interface is capable of coupling to the card reader unit. The BLUETOOTH unit is selectively connected to the keyboard control circuit or the card reader unit via the switch.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: February 8, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Shu Xie, Yun-Shan Xiao
  • Patent number: 7872156
    Abstract: Novel fluorophosphite compounds having the structure of general formula (I): where Ar1 and Ar2 are aryl groups containing 4 to 30 carbon atoms; R1 to R6 are H or alkyl or aryl hydrocarbon radicals containing 1 to 40 carbon atoms; and X is a connecting group or a simple chemical bond, were developed and found to be very active for hydroformylation processes for ethylenically unsaturated substrates. Catalyst solutions prepared from these compounds with a Rh metal show an unusual “ligand acceleration effect” for simple alkenes, i.e., the hydroformylation activity increases as the concentration of ligand increases, and are capable of producing linear or branched aldehydes under typical hydroformylation conditions.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: January 18, 2011
    Assignee: Eastman Chemical Company
    Inventors: Yun-Shan Liu, Jody Lee Rodgers
  • Patent number: 7872157
    Abstract: Novel trivalent organophosphonite ligands having the structure of general formula (I): wherein R is an alkyl or aryl group containing 1 to 30 carbon atoms; Ar1 and Ar2 are aryl groups containing 4 to 30 carbon atoms; R1 to R6 are H or alkyl or aryl hydrocarbon radicals containing 1 to 40 carbon atoms; and X is a connecting group or a simple chemical bond, were developed and found to be very active for hydroformylation processes for ethylenically unsaturated substrates. Catalyst solutions prepared from these ligands with a Rh metal show an unusual “ligand acceleration effect” for simple alkenes, i.e., the hydroformylation activity increases as the concentration of ligand increases, and are capable of producing linear or branched aldehydes under typical hydroformylation conditions.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: January 18, 2011
    Assignee: Eastman Chemical Company
    Inventors: Yun-Shan Liu, Jody Lee Rodgers
  • Publication number: 20100331312
    Abstract: Amide derivatives of Formula (Ia) and pharmaceutical compositions thereof that modulate the activity of the histamine H3 receptor. Compounds of the present invention and pharmaceutical compositions thereof are directed to methods useful in the treatment of histamine H3-associated disorders, such as cognitive disorders, epilepsy, brain trauma, depression, obesity, disorders of sleep and wakefulness such as excessive daytime sleepiness, narcolepsy, shift-work sleep disorder, drowsiness as a side effect from a medication, maintenance of vigilance to aid in the completion of tasks and the like, cataplexy, hypersomnia, somnolence syndrome, jet lag, sleep apnea and the like, attention deficit hyperactivity disorder (ADHD), schizophrenia, allergies, allergic responses in the upper airway, allergic rhinitis, nasal congestion, dementia, Alzheimer's disease, pain and the like.
    Type: Application
    Filed: February 18, 2009
    Publication date: December 30, 2010
    Applicant: ARENA PHARMACEUTICALS, INC.
    Inventors: Vincent J. Santora, Brian J. Hofilena, Michelle Pulley, Graeme Semple, Yun Shan, Brian M. Smith
  • Publication number: 20100090951
    Abstract: A mouse includes an input circuit including a power terminal and a ground terminal, and a heating circuit. The heating circuit includes a switch chip, an electric heater, a thermo-sensitive element, and a resistor. The switch chip includes two input voltage terminals connected to the power terminal, a power-switch output terminal connected to a first terminal of the electrical heater, and an enable input terminal. A second terminal of the electric heater is connected to the ground terminal. The resistor is connected to the thermo-sensitive element in series between the input voltage terminal and the ground terminal, with a cathode of the thermo-sensitive connected to the input voltage terminals, an anode of the thermo-sensitive connected to the resistive element, to support a dividing voltage for the enable input terminal of the switch chip.
    Type: Application
    Filed: November 19, 2008
    Publication date: April 15, 2010
    Applicants: HONG FU JIN PRECISION INDUSTRY(ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: YUN-SHAN XIAO
  • Publication number: 20100033434
    Abstract: A keyboard includes a main keypad, a numerical keypad, a switch, a keyboard control circuit, a calculator circuit, a display driver circuit, and a liquid crystal display screen. The keyboard control circuit is connected to the main keypad. The numerical keypad is connected to the keyboard control circuit and the calculator circuit selectively via the switch. The calculator circuit is further connected to the liquid crystal display screen via the display driver circuit. When the numerical keypad is connected to the calculator circuit via the switch, the numerical keypad is capable of processing a numerical calculation.
    Type: Application
    Filed: September 17, 2008
    Publication date: February 11, 2010
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Shu Xie, Yun-Shan Xiao
  • Publication number: 20100032422
    Abstract: A data input device includes a heating circuit and a temperature control circuit. The heating circuit includes a heating apparatus, and a relay. When a temperature of the data input device is lower than a determined temperature, a first switch of the data input device is turned off, and a relay of the data input device is turned on, and the heating apparatus heats at least one surface of the data input device.
    Type: Application
    Filed: September 17, 2008
    Publication date: February 11, 2010
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen)CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: YUN-SHAN XIAO
  • Publication number: 20100023659
    Abstract: A keyboard includes a keyboard control circuit, a card reader unit, at least one universal serial bus (USB) interface, a switch, and a BLUETOOTH unit. The USB interface is capable of coupling to the card reader unit. The BLUETOOTH unit is selectively connected to the keyboard control circuit or the card reader unit via the switch.
    Type: Application
    Filed: August 25, 2008
    Publication date: January 28, 2010
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Shu Xie, Yun-Shan Xiao
  • Publication number: 20100013936
    Abstract: A monitor includes a display circuit used for controlling display of the monitor. A camera is disposed on a frame of the monitor, and includes a plurality of signal pins. A power circuit is used for providing power to the display circuit and the camera. A monitor video interface mates with a video interface of a motherboard of a host computer. The monitor video interface includes a plurality of video pins connected to the display circuit, and a plurality of idle pins connected to the plurality of signal pins of the camera. A power pin and a ground pin of the camera are correspondingly connected to a power pin and a ground pin of the power circuit.
    Type: Application
    Filed: September 24, 2008
    Publication date: January 21, 2010
    Applicants: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: YI-HONG LIU, YUN-SHAN XIAO
  • Publication number: 20090300252
    Abstract: A monitor for a host computer includes a display circuit, a peripheral equipment interface, a power circuit, and a monitor video interface. The display circuit is capable of controlling display of the monitor. The peripheral equipment interface is disposed on a frame of the monitor. The peripheral equipment interface includes a plurality of signal pins. The power circuit is capable of providing power to the display circuit and the peripheral equipment interface. The monitor video interface mates with a video interface of a motherboard of the host computer. The monitor video interface includes a plurality of video pins and idle pins. The video pins are connected to the display circuit. The idle pins are connected to the idle pins of the motherboard video interface. The idle pins of the motherboard video interface are connected to a chip of the motherboard.
    Type: Application
    Filed: August 14, 2008
    Publication date: December 3, 2009
    Applicants: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: YI-HONG LIU, YUN-SHAN XIAO
  • Publication number: 20090223100
    Abstract: A figure exhibiting method is disclosed in this invention. The figure exhibiting method includes providing a figure and at least one light source. A number of color areas are included in the figure, inga first color area. The light source projects a variety of color lights onto the figure according to a program. The lights include a first light, which is the complementary color of the first color area in order to create a dark visual effect. Alternatively, a color light that is able to create a reflection of color from the first color area can be projected onto the figure, making the color of the area appear differently than it would under sunlight. A figure exhibiting device is also disclosed in this invention. The figure exhibiting device includes a light guiding plate, a transparent plate, a figure and at least one light source. The figure is clipped between the light guiding plate and the transparent plate. The figure includes a number of color areas, particularly, a first color area.
    Type: Application
    Filed: April 8, 2008
    Publication date: September 10, 2009
    Inventors: Bin-Juine Huang, Po-Chien Hsu, Min-Sheng Wu, Kuo-Yang Chen, Yun-Shan Huang, Yi-Tin Yen
  • Patent number: 7586010
    Abstract: Disclosed are catalyst solutions for preparing aldehydes with variable normal- to iso-aldehyde ratios comprising one or more phosphonite ligands, rhodium, and a hydroformylation solvent. Also disclosed is a process for preparing aldehydes with variable normal- to iso-aldehyde ratios comprising contacting an olefin, hydrogen, and carbon monoxide with one or more phosphonite ligands, rhodium, and a hydroformylation solvent. The phosphonite-based catalyst solutions provide the ability to manipulate the normal- to iso-aldehyde ratio by varying one or more process variables including carbon monoxide partial pressure, temperature, and gram moles ligand to gram atoms rhodium.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: September 8, 2009
    Assignee: Eastman Chemical Company
    Inventors: Yun-Shan Liu, Thomas Allen Puckette
  • Publication number: 20090171121
    Abstract: Novel fluorophosphite compounds having the structure of general formula (I): where Ar1 and Ar2 are aryl groups containing 4 to 30 carbon atoms; R1 to R6 are H or alkyl or aryl hydrocarbon radicals containing 1 to 40 carbon atoms; and X is a connecting group or a simple chemical bond, were developed and found to be very active for hydroformylation processes for ethylenically unsaturated substrates. Catalyst solutions prepared from these compounds with a Rh metal show an unusual “ligand acceleration effect” for simple alkenes, i.e., the hydroformylation activity increases as the concentration of ligand increases, and are capable of producing linear or branched aldehydes under typical hydroformylation conditions.
    Type: Application
    Filed: December 8, 2008
    Publication date: July 2, 2009
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Yun-Shan Liu, Jody Lee Rodgers
  • Publication number: 20090171122
    Abstract: Novel trivalent organophosphonite ligands having the structure of general formula (I): wherein R is an alkyl or aryl group containing 1 to 30 carbon atoms; Ar1 and Ar2 are aryl groups containing 4 to 30 carbon atoms; R1 to R6 are H or alkyl or aryl hydrocarbon radicals containing 1 to 40 carbon atoms; and X is a connecting group or a simple chemical bond, were developed and found to be very active for hydroformylation processes for ethylenically unsaturated substrates. Catalyst solutions prepared from these ligands with a Rh metal show an unusual “ligand acceleration effect” for simple alkenes, i.e., the hydroformylation activity increases as the concentration of ligand increases, and are capable of producing linear or branched aldehydes under typical hydroformylation conditions.
    Type: Application
    Filed: December 8, 2008
    Publication date: July 2, 2009
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Yun-Shan Liu, Jody Lee Rodgers
  • Publication number: 20090053306
    Abstract: The present invention relates to certain pharmaceutical compositions of a 5-HT2A serotonin receptor modulator and methods for preparing pharmaceutical composition related thereto. The pharmaceutical compositions are useful in the treatment of platelet aggregation, coronary artery disease, myocardial infarction, transient ischemic attack, angina, stroke, atrial fibrillation, reducing the risk of blood clot formation, asthma or symptoms thereof, agitation or a symptom, behavioral disorders, drug induced psychosis, excitative psychosis, Gilles de la Tourette's syndrome, manic disorder, organic or NOS psychosis, psychotic disorder, psychosis, acute schizophrenia, chronic schizophrenia, NOS schizophrenia and related disorders, sleep disorders, diabetic-related disorders, progressive multifocal leukoencephalopathy and the like.
    Type: Application
    Filed: September 28, 2006
    Publication date: February 26, 2009
    Inventors: Rajesh K. Agarwal, Rampurna Prasad Gullapalli, Michael Martin, Michael Morgan, Dennis Chapman, Joseph Belier Speer, Yun Shan
  • Patent number: 7437131
    Abstract: An active mixer with self-adaptive bias feedback is described and resolves a poor linearity, inconvenient design of a bias circuit, and other defects of a conventional mixer. The dual self-feedback bias structure according to this invention is used. The active mixer with self-adaptive bias feedback has a power supply, an RF input match/drive unit, a local oscillator input match/drive unit, a mixer core unit, a self-adaptive twin bias circuit and an IF output match/buffer unit. This invention improves the linearity of a conventional mixer and does not affect other characteristics. There are fewer components in this invention; an area of the mixer is thus smaller. Further, this invention may improve temperature response, increase yield factor, and lower unit cost. The dual self-feedback bias structure is designed for further application to other semiconductor manufacturing processes, components, and microwave products.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: October 14, 2008
    Assignee: Richwave Technology Corp.
    Inventors: Ching-Kuo Wu, Chih-Wei Chen, Yun-Shan Chang, Shyh-Chyi Wong
  • Publication number: 20080154067
    Abstract: Disclosed are catalyst solutions for preparing aldehydes with variable normal- to iso-aldehyde ratios comprising one or more phosphonite ligands, rhodium, and a hydroformylation solvent. Also disclosed is a process for preparing aldehydes with variable normal- to iso-aldehyde ratios comprising contacting an olefin, hydrogen, and carbon monoxide with one or more phosphonite ligands, rhodium, and a hydroformylation solvent. The phosphonite-based catalyst solutions provide the ability to manipulate the normal- to iso-aldehyde ratio by varying one or more process variables including carbon monoxide partial pressure, temperature, and gram moles ligand to gram atoms rhodium.
    Type: Application
    Filed: November 16, 2007
    Publication date: June 26, 2008
    Applicant: Eastman Chemical Company
    Inventors: Yun-Shan Liu, Thomas Allen Puckette
  • Patent number: 7358817
    Abstract: A linearized bias circuit with adaptation resolves the problem happening to the power amplifier with conventional bias circuit that the DC and AC characteristics of the power amplifier shift or even deteriorate due to a temperature variation. The linearized bias circuit with adaptation has a reference voltage source, a first voltage source, a first resistor, a second resistor, a first NPN transistor, a second NPN transistor, and a third NPN transistor. The present invention has the characteristics of bias current temperature compensation, gain and phase compensations to achieve high linearity for the conventional power amplifier and reducing the DC consumption power. At the same time, the quantity of the required elements and layout area in the present invention are small so that the design complexity can be reduced for improving yield, reducing IC layout area, and reducing cost.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: April 15, 2008
    Assignee: RichWave Technology Corp.
    Inventors: Chi-Hung Kao, Chih-Wei Chen, Cheng-Min Lin, Yun-Shan Chang, Shyh-Chyi Wong
  • Publication number: 20060226911
    Abstract: A linearized bias circuit with adaptation resolves the problem happening to the power amplifier with conventional bias circuit that the DC and AC characteristics of the power amplifier shift or even deteriorate due to a temperature variation. The linearized bias circuit with adaptation has a reference voltage source, a first voltage source, a first resistor, a second resistor, a first NPN transistor, a second NPN transistor, and a third NPN transistor. The present invention has the characteristics of bias current temperature compensation, gain and phase compensations to achieve high linearity for the conventional power amplifier and reducing the DC consumption power. At the same time, the quantity of the required elements and layout area in the present invention are small so that the design complexity can be reduced for improving yield, reducing IC layout area, and reducing cost.
    Type: Application
    Filed: April 5, 2006
    Publication date: October 12, 2006
    Inventors: Chi-Hung Kao, Chih-Wei Chen, Cheng-Min Lin, Yun-Shan Chang, Shyh-Chyi Wong
  • Publication number: 20060135106
    Abstract: An active mixer with self-adaptive bias feedback is described and resolves a poor linearity, inconvenient design of a bias circuit, and other defects of a conventional mixer. The dual self-feedback bias structure according to this invention is used. The active mixer with self-adaptive bias feedback has a power supply, an RF input match/drive unit, a local oscillator input match/drive unit, a mixer core unit, a self-adaptive twin bias circuit and an IF output match/buffer unit. This invention improves the linearity of a conventional mixer and does not affect other characteristics. There are fewer components in this invention; an area of the mixer is thus smaller. Further, this invention may improve temperature response, increase yield factor, and lower unit cost. The dual self-feedback bias structure is designed for further application to other semiconductor manufacturing processes, components, and microwave products.
    Type: Application
    Filed: November 7, 2005
    Publication date: June 22, 2006
    Inventors: Ching-Kuo Wu, Chih-Wei Chen, Yun-Shan Chang, Shyh-Chyi Wong