Patents by Inventor Yuan Yao

Yuan Yao 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).

  • Thermal interface material having a patterned carbon nanotube array and method for making the same
    Patent number: 8642121
    Abstract: A method for making a thermal interface material includes following steps. A substrate having a plurality of CNT arrays arranged thereon and a number of first interspaces defined between the CNT arrays is provided. A container is provided and the substrate with the CNT arrays is disposed into the container. A number of low melting point metallic nanoparticles is provided and filled in the first interspaces. The low melting point metallic nanoparticles in the container is heated into a liquid state, and the low melting point metal nanoparticles in liquid state is combined with the CNT arrays to form a composite material on the substrate. The composite material is peeled off from the substrate, and a thermal interface material is obtained.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: February 4, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Feng-Wei Dai, Yuan Yao, You-Sen Wang, Ji-Cun Wang, Hui-Ling Zhang
  • Process for manufacturing a perpendicular magnetic recording writer pole with nonmagnetic bevel
    Patent number: 8628672
    Abstract: A method for fabricating a magnetic recording transducer having a magnetic writer pole with a short effective throat height is provided. In an embodiment, a writer structure comprising a magnetic writer pole having a trailing bevel and a nonmagnetic stack on the top surface of the writer pole is provided. A dielectric write gap layer comprising alumina is deposited over the trailing bevel section and the nonmagnetic stack; and at least one etch stop layer is deposited over the dielectric write gap layer. A layer of nonmagnetic fill material is deposited over the etch stop layer and to form a nonmagnetic bevel by performing a dry etch process. The etch stop layer(s) are removed from the short throat section; and a trailing shield is deposited over the short throat section, nonmagnetic bevel, and nonmagnetic stack top surface.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: January 14, 2014
    Assignee: Western Digital (Fremont), LLC
    Inventors: Weimin Si, Ying Hong, Zhigang Bai, Yunhe Huang, Fenglin Liu, Hong Zhang, Jikou Zhou, Xiaoyu Yang, Yuan Yao, Iulica Zana, Feng Liu, Ling Wang
  • METHOD FOR MAKING CARBON NANOTUBE COMPOSITE PREFORM
    Publication number: 20130316093
    Abstract: A method for making a carbon nanotube composite preform includes following steps. A substrate is provided. Carbon nanotubes are formed on the substrate. The carbon nanotubes and the substrate are placed in a solvent for a predetermined time. The carbon nanotubes and the substrate are drawn from the solvent. The carbon nanotubes and the substrate are dried.
    Type: Application
    Filed: August 5, 2013
    Publication date: November 28, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: HAI-ZHOU GUO, FENG-WEI DAI, YUAN YAO, CHANG-SHEN CHANG, CHANG-HONG LIU, KAI-LI JIANG
  • POWER-EFFICIENT DRIVER ARCHITECTURE
    Publication number: 20130294294
    Abstract: Disclosed are various embodiments for providing a power-efficient driver architecture supporting rail-to-rail operation in full duplex mode. A driver is configured to drive a duplex signal over a transmission medium. A hybrid is configured to recover a received signal from the duplex signal. The received signal is generated by a remote transceiver. The driver is configured to drive the duplex signal based at least in part on the received signal recovered by the hybrid.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 7, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Hui Pan, Yuan Yao, Joseph Aziz, Derek Tam, Xin Wang, Chia-Jen Hsu
  • Methods for creating a stepped perpendicular magnetic pole via milling and/or metal liftoff
    Patent number: 8551347
    Abstract: A method in one embodiment includes forming a layer of a nonmagnetic material above an upper surface of a substrate; forming a resist structure above the layer of nonmagnetic material, wherein the resist structure has an undercut; removing a portion of the layer of nonmagnetic material not covered by the resist structure; depositing a layer of magnetic material above the substrate adjacent a remaining portion of the layer of nonmagnetic material such that at least portions of the layer of magnetic material and the remaining portion of the layer of nonmagnetic material lie in a common plane; removing the resist structure; and forming a write pole above the layer of magnetic material and the remaining portion of the layer of nonmagnetic material. Additional methods are also presented.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: October 8, 2013
    Assignee: HGST Netherlands B.V.
    Inventors: Amanda Baer, Wen-Chien David Hsiao, John I. Kim, Vladimir Nikitin, Trevor W. Olson, John Bruce Piggott, Jr., Yuan Yao
  • Wireless communication network and routing method
    Patent number: 8537719
    Abstract: A wireless communication network, including a destination node, a first node transmitting a first routing message, wherein the first node has a first routing table including a first entry for the destination node, and the first entry includes a first list field for child node(s). The network further includes a second node generating and transmitting a second routing message according to the first routing message, wherein the second routing message includes a second parent node field, and the second parent node field is marked as the first node that transmitted the first routing message. The first node further receives the second routing message and stores a first mark in the first list field for child node(s) of the first entry after determining that the second parent node field of the second routing message is marked as the first node, and the first mark denotes the second node.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: September 17, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Shu-Hsin Chang, Pin-Chuan Liu, Chih-Yuan Yao, Wei-Lun Tsai
  • Carbon nanotube composite preform and method for making the same
    Patent number: 8530052
    Abstract: A carbon nanotube composite preform includes a substrate and a plurality of carbon nanotubes formed thereon. Each carbon nanotube includes a first end adjacent to the substrate and a second end away from the substrate. Gaps between the second ends of the carbon nanotubes are bigger than gaps between the first ends thereof. The method for making the carbon nanotube composite preform includes the following steps: (a) providing a substrate; (b) forming a plurality of carbon nanotubes (e.g., a carbon nanotube array) on the substrate; (c) placing the carbon nanotubes and the substrate in a solvent for some time; (d) removing the carbon nanotubes and the substrate from the solvent; (e) drying the carbon nanotubes and the substrate to form a carbon nanotube composite preform.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: September 10, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Hai-Zhou Guo, Feng-Wei Dai, Yuan Yao, Chang-Shen Chang, Chang-Hong Liu, Kai-Li Jiang
  • ELECTRONIC DEVICE AND AUDIO JACK THEREOF
    Publication number: 20130225000
    Abstract: An audio jack for receiving an audio plug includes a connection hole with a position detection portion and a first audio channel contact portion therein. When the audio plug is inserted into the connection hole to the linking position, a first audio channel connection portion of the audio plug contacts the position detection portion and the first audio channel contact portion. The position detection portion and the first audio channel contact portion respectively have a first distance and a second distance to an opening of the connection hole, wherein the second distance is smaller than the first distance.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 29, 2013
    Inventors: Chien-Hung CHEN, Chih-Wei TU, Yuan-Yao TU, Wei-Syuan LIN, Pei-Hao HUANG, Ping-Huang YANG
  • Laser-optical position detecting module
    Patent number: 8493571
    Abstract: A laser-optical position detecting module with a laser as a light source is disclosed, which includes a laser mode conversing assembly, having a laser source capable of emitting a time-modulated laser beam; a laser mode conversing unit, used to expand the time-modulated laser beam to a two-dimension sensing plane; a drive control unit, adopted for driving the laser source to emit the time-modulated laser beam; and a detector matrix. The laser mode conversing unit has a phase delay device and a passive optical device capable of reflecting the light; so that, through the laser mode conversing unit, the laser-optical position detecting module can expand the light emitted by the laser source to the two-dimension sensing plane without using any other mechanical scanning.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: July 23, 2013
    Assignee: National Tsing Hua University
    Inventors: Yen-Yin Lin, Yuan-Yao Lin, Shi-Wei Zhu, An-Chung Chiang, Mang-Shiang Lee, Ching-Huei Wu
  • Urchin-Like Copper Oxide Material Manufacturing Method
    Publication number: 20130183228
    Abstract: An urchin-like copper oxide material manufacturing method, comprising following steps: providing copper powder of length about 5 to 150 ?m; placing the copper powder on an aluminum oxide plate to be heated up; and heating up the aluminum oxide plate in a reaction temperature of 300° C. to 700° C., to obtain urchin-like copper oxide material on the aluminum oxide plate. By employing the manufacturing method, it only requires a simple thermal oxidation process to synthesize and obtain various types of urchin-like copper oxides having good stability and reproducibility, hereby achieving excellent performance in various opto-electronic applications.
    Type: Application
    Filed: April 5, 2012
    Publication date: July 18, 2013
    Inventors: Yuan-Yao LI, Tai-Hsun Chang
  • Composite material
    Patent number: 8466223
    Abstract: A composite material includes a body and a plurality of nano-scale probes. The body is made of a polymer. The plurality of nano-scale probes is embedded in the body. The nano-scale probes are substantially uniformly distributed in the polymer matrix. The nano-scale probes are nanowires, nano-particles or nanotubes.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: June 18, 2013
    Assignees: Tsingua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yuan Yao, Chang-Shen Chang
  • Thermal interface material and method of using the same and electronic assembly having the same
    Patent number: 8437136
    Abstract: An electronic assembly includes a heat source having a maximum operating temperature, a heat dissipating device, a thermal interface material sandwiched between the heat source and the heat dissipating device. The thermal interface material includes a base and a plurality of first thermally conductive particles dispersed in the base. The first thermally conductive particles have a size monotonically changing from a first size less than 100 nanometers and a first melting temperature below the maximum operating temperature, to a second size larger than 100 nanometers and a second melting temperature above the maximum operating temperature when the heat source operates at a temperature above the first melting temperature and at or below the maximum operating temperature.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: May 7, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: You-Sen Wang, Yuan Yao, Feng-Wei Dai, Ji-Cun Wang, Hui-Ling Zhang
  • PORTABLE DEVICE AND ORIENTATION DETECTION METHOD THEREFOR
    Publication number: 20130060515
    Abstract: An embodiment of the invention provides an orientation detection method for a portable device. The method comprises acquiring an accelerometer data, determining whether the portable device is in a flat status, determining whether the portable device is in a stable status, and when the portable device is determined in both the flat status and the stable status, stopping acquiring the accelerometer data until receiving an enable signal.
    Type: Application
    Filed: February 9, 2012
    Publication date: March 7, 2013
    Inventors: Chih-Chun WEI, Pei-Hao Huang, Hui-Jan Ko, Yu-Hsien Yang, Yuan-Yao Tu
  • APPARATUS FOR MANUFACTURING CARBON NANOTUBE HEAT SINK
    Publication number: 20130026339
    Abstract: An apparatus for manufacturing a carbon nanotube heat sink includes a board, and a number of first and second carbon nanotubes formed on the board. The first carbon nanotubes and the second nanotubes are grown along a substantially same direction from the board. A height difference exists between a common free end of the first carbon nanotubes and a common free end of the second carbon nanotubes.
    Type: Application
    Filed: October 9, 2012
    Publication date: January 31, 2013
    Inventors: YUAN YAO, FENG-WEI DAI, KAI-LI JIANG, CHANG-HONG LIU, LIANG LIU
  • DENDRITIC EMULSIFIERS AND METHODS FOR THEIR USE AND PREPARATION
    Publication number: 20130017308
    Abstract: A dendritic emulsifier for forming an oil-in-water emulsion includes an anhydride-modified phytoglycogen or glycogen-type material. A method of preparing an oil-in-water emulsion includes: (a) combining oil, water, and a dendritic emulsifier; and (b) mixing a combination of the oil, water, and dendritic emulsifier. A method of preparing a dendritic emulsifier includes reacting an anhydride with a phytoglycogen or glycogen-type material in solution, thereby forming an anhydride-modified phytoglycogen or glycogen-type material.
    Type: Application
    Filed: November 17, 2010
    Publication date: January 17, 2013
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventor: Yuan Yao
  • TRIODE-TYPE FIELD EMISSION DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20130015778
    Abstract: A triode-type field emission device and method of manufacturing the same, suitable for use in screen print process of curved or planar substrate, comprising the following steps: firstly, form a cathode and a gate on a cathode substrate at the same time by means of screen printing, and a gap is located between gate and cathode, to avoid short circuit or interference; next, form a hedgehog-shape field emission layer on at least said cathode; then, form a transparent conductive layer and a light emitting layer sequentially on an anode substrate; and finally, dispose cathode substrate and anode substrate in parallel and spaced apart, and package them into a triode-type field emission device. Bias of cathode and gate can be controlled to achieve local adjustment of light. Also, gate may serve as an emitter, to increase field emission efficiency and its service life.
    Type: Application
    Filed: March 14, 2012
    Publication date: January 17, 2013
    Inventors: Yuan-Yao LI, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Yen-Ming Juan, Wang-Hua Lin
  • FILTER FOR KVP SWITCHING SPECTRAL X-RAY SYSTEM
    Publication number: 20120314834
    Abstract: An apparatus for x-ray imaging of an object is provided. An x-ray source for providing alternating x-ray spectrums is placed on a first side of the object. A spectrum separation fixed filter is placed between the x-ray source and the object. An x-ray detector is placed on a second side of the object opposite the x-ray source. A controller controls the x-ray source and the x-ray detector.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 13, 2012
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yuan YAO, Norbert J. PELC
  • Method for making the carbon nanotube heat sink
    Patent number: 8309051
    Abstract: The present disclosure provides an apparatus for manufacturing a carbon nanotube heat sink. The apparatus includes a board, and a plurality of first and second carbon nanotubes formed on the board. The first carbon nanotubes and the second nanotubes are grown along a substantially same direction from the board. A height difference exists between a common free end of the first carbon nanotubes and a common free end of the second carbon nanotubes. A method for manufacturing multiple carbon nanotube heat sinks is also provided.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: November 13, 2012
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yuan Yao, Feng-Wei Dai, Kai-Li Jiang, Chang-Hong Liu, Liang Liu
  • COMPOSITE MATERIAL
    Publication number: 20120282650
    Abstract: A composite material includes a body and a plurality of nano-scale probes. The body is made of a polymer. The plurality of nano-scale probes is embedded in the body. The nano-scale probes are substantially uniformly distributed in the polymer matrix.
    Type: Application
    Filed: July 17, 2012
    Publication date: November 8, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., Tsinghua University
    Inventors: Yuan YAO, Chang-Shen CHANG
  • Double-sided light emitting field emission device and method of manufacturing the same
    Patent number: 8299699
    Abstract: A double-sided light-emitting field emission device and method of manufacturing same, said device comprising at least two transparent conductive layers, mixed field emission layers, and transparent package device. Wherein, the mixed field emission layer of field emission source and phosphor are utilized directly to serve as anode and cathode alternatively, such that on applying an AC power supply, roles of anode and cathode are changed alternatively along with frequency, hereby forming double-sided light-emitting structure. Therefore, the applications of said double-sided light-emitting field emission device are pretty wide, and having advantages of protecting field emission source, activating field emission source, reducing field emission arcing effect, having conductive phosphor, and raising illumination.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: October 30, 2012
    Assignee: National Chung Cheng University
    Inventors: Yuan-Yao Li, Meng-Jey Youh, Chun-Lung Tseng, Hung-Chih Wu, Wang-Hua Lin, Yen-Ming Juan, Sheng-Cheng Chiu