Patents by Inventor Aihua (Steven) Chen

Aihua (Steven) Chen 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: 20140001617
    Abstract: A die attach method for a semiconductor chip with a back metal layer located at the back surface of the semiconductor chip comprises the steps of forming a bonding ball array including a plurality of bonding balls with a same height on a die attach area at a top surface of a die paddle; depositing a die attach material in the bonding ball array area with a thickness of the die attach material equal or slightly larger than the height of the bonding ball; attaching the semiconductor chip to the die attach area at the top surface of the die paddle by the die attach material, wherein the bonding ball array controls the bond line thickness of the die attach material between the back metal layer and the top surface of the die paddle and prevents the semiconductor chip from rotating on the die attach material when it is melted.
    Type: Application
    Filed: June 30, 2012
    Publication date: January 2, 2014
    Inventors: Lei Shi, Aihua Lu, Yan Xun Xue
  • Publication number: 20130331453
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR delta modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Applicant: Janssen Pharmaceutica NV
    Inventors: Gee-Hong Kuo, Rui Zhang, Aihua Wang, Alan R. DeAngelis
  • Publication number: 20130330260
    Abstract: Provided is an alumina-based sulfur recovery catalyst as well as its preparation method, characterized in that the catalyst has a specific surface area of at least about 350 m2/g, a pore volume of at least about 0.40 ml/g, and the pore volume of pores having a pore diameter of at least 75 nm comprises at least about 30% of the pore volume. The alumina-based catalyst according to present invention is made from flashed calcined alumina, pseudoboehmite and optionally, a binder. The present invention further relates to an use of the alumina-based sulfur recovery catalyst and a method for recovering sulfur by using this catalyst.
    Type: Application
    Filed: June 11, 2013
    Publication date: December 12, 2013
    Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Aihua LIU, Zhaoshun Sheng, Jianli Liu, Jianhua Wang, Dehua Zhu, Zengrang Liu, Yingjie Liang
  • Patent number: 8594724
    Abstract: A multi-mode convergence method, a multi-mode combination method, and devices thereof are provided. The multi-mode convergence method includes the following steps. Data from multi-mode base band units (BBUs) is received and separated into downlink service data and operation maintenance data. A channel configuration is generated according to the operation maintenance data. The downlink service data of a corresponding mode is selected according to the channel configuration, and the downlink service data and the operation maintenance data are consolidated, and the consolidated data is sent to corresponding remote radio unit (RRUs). The multi-mode convergence method, the multi-mode combination method, and devices thereof are adopted, so as to accomplish functions, such as multi-mode and pseudo noise (PN) multiplexing, to decrease complexity of a multi-mode system, and provide a function of multi-mode coexistent optical fiber.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: November 26, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Taoyuan Zhou, Jiangchun Gu, Aihua Hu, Yong Zhang
  • Publication number: 20130278016
    Abstract: A segmented tube formed of a magnesium-based alloy and wrapped or jacketed with a reinforcement to apply a restraining force on the external surface of the tube for resisting fragmentation of the tube by the compressive force applied to the end of the tube serves as a structural member for receiving a compressive stress applied to an end of the tube and acting along the axis of the tube toward the opposing end of the tube. The magnesium alloy tube is comparatively light, and the segmented and wrapped or jacketed tube has an increased capacity to absorb compressive forces. The tubes are useful as components of automotive vehicles.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 24, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Hamid G. Kia, Aihua A. Luo, John N. Owens, James F. Quinn
  • Patent number: 8518997
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR delta modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: August 27, 2013
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Gee-Hong Kuo, Rui Zhang, Aihua Wang, Alan R. DeAngelis
  • Publication number: 20130217085
    Abstract: The present invention discloses a method of improving the fermentation yield of polyunsaturated fatty acids, in which Schizochytrium limacinum is used as production strain to produce polyunsaturated fatty acids (PUFA), and glycine betaine or trehalose is added to the fermentation medium. In the present invention, after Schizochytrium limacinum fermentation system is treated with exogenous glycine betaine, the yield of PUFA produced by fermentation with Schizochytrium limacinum can be greatly improved. The present invention significantly improves the yield of PUFA produced by microorganism, reduces the cost without harming the environment, and saves manpower and material resources by simple and effective regulation of fermentation, and thus the method is simple, convenient and cost-effective.
    Type: Application
    Filed: January 13, 2011
    Publication date: August 22, 2013
    Applicant: NANJING UNIVERSITY OF TECHNOLOGY
    Inventors: He Huang, Qianqian Tong, Lujing Ren, Xiaojun Ji, Aihua Xiao, Ping Wei, Jiangying You, Liang Qu, Dongping Gong, Jiangyao Zhu
  • Publication number: 20130216462
    Abstract: The present invention relates to a method for processing a sulfur-containing gas and a hydrogenation catalyst used therefor. Said method comprises introducing the sulfur-containing gas into the tail gas hydrogenation unit of a sulfur recovery device, processing it with the hydrogenation catalyst of the present invention, absorbing the hydrogenated tail gas with a solvent and then regenerating, the regenerated hydrogen sulfide being recycled to the Claus unit to recover sulfur, the clean tail gas being incinerated in an incinerator to be discharged after reaching the standards. Said sulfur-containing gas comprises from 0 to 6 vol. % of sulfur dioxide and from 0 to 3 vol. % of oxygen, and has a temperature of from 100 to 200° C. The hydrogenation catalyst of the present invention comprises from 0.5 to 3 wt. % of an active component nickel oxide, from 1 to 4 wt. % of an active component cobalt oxide, from 8 to 20 wt. % of an active component molybdenum oxide or tungsten oxide, from 1 to 5 wt.
    Type: Application
    Filed: August 4, 2011
    Publication date: August 22, 2013
    Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Aihua Liu, Yiling Zhang, Xingzhong Xu, Jianli Liu, Weidong Tao, Jinshan Xu
  • Publication number: 20130199675
    Abstract: A manufacture method of high-efficiency non-oriented silicon steel with excellent magnetic property, which comprises the following steps: 1) smelting and casting; chemical compositions of non-oriented silicon steel, by weight percent, are: C?0.0040%, Si: 0.1˜0.8%, Al: 0.002˜1.0%, Mn: 0.10˜1.50%, P: ?0.2%, Sb: 0.04˜0.08%, S?0.0030%, N?0.0020%, Ti?0.0020%, and the rest is Fe and unavoidable inclusions; molten steel in accordance with the above compositions is smelted and then casted into billets; 2) hot-rolling and pickling; heating temperature for slab is 1100° C.˜1150° C. and finish-rolling temperature is 860° C.˜920° C.; after rolling, the hot-rolled product is air cooled, during which air cooling time t: (2+30×Sb %)s?t?7 s; thereafter reeling at a temperature ?720° C. ; 3) cold-rolling; rolling to form cold-rolled plate with target thickness at a reduction ratio of 70˜18%; 4) annealing; heating up the cold-rolled plate to 800˜1000° C. at heating rate of ?15° C./s, and holding time is 10 s˜25 s.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 8, 2013
    Inventors: Aihua Ma, Bo Wang, Shishu Xie, Zhanyuan Hu, Liang Zou, Zitao Wang, Yuhua Zhu, Jie Huang, Bingzhong Jin, Xiandong Liu
  • Publication number: 20130203655
    Abstract: The present invention provides methods to prevent or treat flavivirus infection, and assays for identifying agents which treat flavivirus infection. The present invention also provides compositions for preventing flavivirus infection and a kit for screening an agent that prevents or treats viral infection.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 8, 2013
    Inventors: Margaret Kielian, Aihua Zheng
  • Patent number: 8488233
    Abstract: The invention discloses an apparatus for enhancing the signal power to ASE power ratio in an optical amplifier including a 1×n input optical switching component, n band-pass filters, and an n×1 output optical switching component, wherein the signal power is allowed to pass through the band-pass filter switched by the 1×n input optical switching component and the n×1 output optical switching component.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: July 16, 2013
    Assignee: O-Net Communications (Shenzhen) Limited
    Inventors: Bichang Huang, Aihua Yu
  • Publication number: 20130174361
    Abstract: The present invention claims a three-truss continuous steel truss girder-pushing device and an arrangement method thereof. The device comprises three supporting structures of left, center and right, the three supporting structures are provided respectively with left and right side truss slideway girders and a middle truss slideway girder. The front ends of the slideway girder are provided with an operating platform where horizontal continuous pushing jacks are installed; the front ends of the left and right slideway girder and the center slideway girder are each provided with four vertical lifting jacks. The three-truss continuous steel truss girder-pushing device simultaneously pushes the two side trusses of the steel truss beam only, while the center truss slides passively, thereby improving construction efficiency and reducing construction costs.
    Type: Application
    Filed: September 2, 2011
    Publication date: July 11, 2013
    Inventors: Shunquan Qin, Juntang Li, Wainan Zhou, Jie Song, Manming Tu, Weiqi Mao, Fahai Yao, Ruixia Zhang, Aihua Zhang, Yong Tang
  • Publication number: 20130166268
    Abstract: The present invention includes a crystal comprising a complex of the pro form of a matrix metalloprotease (proMMP) and a small-molecule allosteric processing inhibitor that inhibits that activation of the proMMP, methods for identifying small-molecule allosteric processing inhibitors that inhibit the activation of a proMMP, and methods of treatment using small-molecule allosteric processing inhibitors that inhibit the activation of a proMMP. The present invention relates to the crystal structure of a complex of proMMP9 bound to a small-molecule allosteric processing inhibitor that inhibits activation of proMMP9. The invention further relates to the use of the methods and the crystal and related structural information for designing, selecting and/or optimizing small-molecule allosteric processing inhibitors that inhibit activation of proMMP9 and proMMP9 homologues.
    Type: Application
    Filed: June 26, 2012
    Publication date: June 27, 2013
    Inventors: Kristi A. Leonard, Richard Scott Alexander, Joseph Kent Barbay, Roger F. Bone, Ingrid Christa Deckman, Paul F. Jackson, Lawrence C. Kuo, Frank A. Lewandowski, Diane M. Maguire, Cynthia M. Milligan, Kenneth J. Rhodes, Robert H. Scannevin, Celine Schalk-Hihi, Barry Springer, John C. Spurlino, Matthew J. Todd, Brett Andrew Tongue, Aihua Wang
  • Patent number: 8449849
    Abstract: A method comprising providing a halogen stream; providing a first alkane stream; reacting at least a portion of the halogen stream with at least a portion of the first alkane stream to form a halogenated stream, wherein the halogenated stream comprises alkyl monohalides, alkyl polyhalides, and a hydrogen halide; providing a second alkane stream; and reacting at least a portion of the second alkane stream with at least a portion of the alkyl polyhalides to create at least some additional alkyl monohalides.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: May 28, 2013
    Assignee: GRT, Inc.
    Inventors: Sagar B. Gadewar, Michael D. Wyrsta, Philip Grosso, Aihua Zhang, Eric W. McFarland, Zachary J. A. Komon, Jeffrey H. Sherman
  • Patent number: 8451735
    Abstract: The present disclosure relates to systems and methods for dynamic load balancing in a wireless network, such as a wireless local area network (WLAN) and the like. Specifically, the present invention periodically provides dynamic load balancing of mobile devices associated with a plurality of wireless access devices. This may include determining an optimum load and instructing wireless access devices that are overloaded to disassociate some mobile devices based upon predefined criteria. This disassociation is performed in a manner to minimize disruption by disassociating mobile devices with low usage, with close proximity to underutilized wireless access devices, and mobile devices not currently operating critical applications, such as voice.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: May 28, 2013
    Assignee: Symbol Technologies, Inc.
    Inventor: Aihua Edward Li
  • Patent number: 8450371
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR delta modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: May 28, 2013
    Assignee: Janssen Pharmaceutica, N.V.
    Inventors: Gee-Hong Kuo, Rui Zhang, Aihua Wang, Alan R. DeAngelis
  • Publication number: 20130121268
    Abstract: The present invention discloses a method for adaptively adjusting uplink and downlink bandwidth, which includes: a base station counting a usage status of the uplink and downlink bandwidth in a preset time, and obtaining a bandwidth amount ?BWDL required to be coordinated of downlink bandwidth and a bandwidth amount ?BWUL required to be coordinated of uplink bandwidth; the base station determining a direction, amount and location of the required change of the uplink and downlink bandwidth according to the obtained ?BWDL and ?BWUL ; the base station carrying the determined direction, amount and location of the required change of the uplink and downlink bandwidth through residual ten bits in a logical channel message corresponding to a Physical Broadcast Channel (PBCH) and informing a terminal of the direction, amount and location. The present invention also discloses a device for adaptively adjusting the uplink and downlink bandwidth.
    Type: Application
    Filed: November 4, 2010
    Publication date: May 16, 2013
    Applicant: ZTE CORPORATION
    Inventors: Yan Li, Aihua Peng, Nan Zhao, Feng Li
  • Patent number: 8420784
    Abstract: The invention relates to IL-1O Receptor alpha (IL-1OR?) antibodies and subsequences thereof, human and humanized IL-10 Receptor alpha (IL-IOR?) antibodies and subsequences thereof, isolated and purified IL-10 Receptor alpha (IL-1OR?) antibodies and subsequences thereof, compositions including IL-10 Receptor alpha (IL-1OR?) antibodies and subsequences thereof, and methods that employ IL-10 Receptor alpha (IL-1OR?) antibodies and subsequences thereof. The invention includes among other things, methods of treating a pathogen infection, pathogen reactivation, and methods of vaccinating or immunizing against a pathogen infection, which include, for example, administering an IL-10 Receptor alpha (IL-1OR?) antibody or subsequence, to treat a pathogen infection, pathogen reactivation or for vaccination or immunization.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: April 16, 2013
    Assignee: Kyowa Hakko Kirin Co., Ltd.
    Inventors: Shinichiro Kato, Rachel Soloff Nugent, Tomoyuki Tahara, Paul Rogers, Aihua Song
  • Patent number: 8415517
    Abstract: A method comprising: providing a first halogen stream; providing a first alkane stream; reacting at least a portion of the first halogen stream with at least a portion of the first alkane stream in a first reaction vessel to form a first halogenated stream; providing a second alkane stream comprising C2 and higher hydrocarbons; providing a second halogen stream; and reacting at least a portion of the second halogen stream with at least a portion of the second alkane stream in a second reaction vessel to form a second halogenated stream.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: April 9, 2013
    Assignee: GRT, Inc.
    Inventors: Sagar Gadewar, Michael Wyrsta, Philip Grosso, Aihua Zhang, Eric W. McFarland, Zachary J. A. Komon, Jeffrey H. Sherman, Peter Stoimenov, Hongfei Lin, Shawn Huff, Shouli Sun
  • Publication number: 20130053043
    Abstract: The disclosure discloses a handover method based on a cognitive technology. At least two working areas such as a Primary Working Area (PWA) and a Secondary Working Area (SWA), a RRM and a HOC are configured both in User Equipment (UE) and in a Base Station (BS); after receiving a handover request, according to the current radio environments, the PWA of the BS makes a handover negotiation with the neighboring BSs or with the neighboring BSs and the UE requesting handover, determines the communication parameters satisfying the handover request, and sends the determined communication parameters to the SWA of the BS and the SWA of the UE; the SWA of the BS and the SWA of the UE configure said communication parameters and notify the RRM of the BS after the configuration is finished; the RRM of the BS instructs the HOC of the BS and the HOC of the UE to activate the respective SWAs, and to perform the handover according to the communication parameters configured by the SWA.
    Type: Application
    Filed: October 22, 2010
    Publication date: February 28, 2013
    Applicant: ZTE Corporation
    Inventors: Min Wei, Feng Li, Nan Zhao, Kaibo Tian, Aihua Peng, Senbao Guo