Patents by Inventor Li Heng

Li Heng 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: 20120256710
    Abstract: The present invention provides a wideband frequency tunable ring resonator, wherein, comprises a closed ?g/2 transmission line and two variable capacitors with tunable capacitance, the ?g/2 transmission line is axisymmetric around a central line, first ends of the two variable capacitors are respectively connected to two intersection points of the ?g/2 transmission line and the central line, the second ends of the two variable capacitors are respectively grounded. By implementing the technical solution of present invention, following technical effects are obtained. The fundamental resonant frequency (ffund) can be shifted up and down by controlling the respective values of the two loading capacitors, resulting in a bi-directional tuning of ffund. As a result, the tuning range of this invention can be approximately doubled as compared with the conventional tunable ring resonator.
    Type: Application
    Filed: September 22, 2011
    Publication date: October 11, 2012
    Inventors: Jian Xin CHEN, Li Heng Zhou, Hui Tang, Zhi Hua Bao, Yong Jie Yang, Quan Xue
  • Publication number: 20120027853
    Abstract: This invention relates to a process for preparing a pharmaceutical composition comprising four antitubercular drugs: rifampin or a pharmaceutically acceptable salt thereof, isoniazid or a pharmaceutically acceptable salt thereof, pyrazinamide or a pharmaceutically acceptable salt thereof and ethambutol or a pharmaceutically acceptable salt thereof, wherein rifampin and isoniazid are in separate layers. The invention also provides a pharmaceutical composition prepared therefrom having advantageous stability and bioavailability.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 2, 2012
    Applicants: Taiwan Biotech Co., Ltd.
    Inventors: Li-Heng Pao, Nion-Heng Shiao, Kuo-Hua Yang, Jui-Ming Chou
  • Publication number: 20120017740
    Abstract: A cutting apparatus configured for aligned with a gate of an injection molding part, includes a bottom board, a main adjustable mechanism attached to the bottom board, and a cutting mechanism. The main adjustable mechanism includes a driving device, a mounting member attached to the driving device, and a rotatable member rotatably attached to the mounting member. The rotatable member can be rotatable relative to the mounting member between a first position, where an acute angle is formed between the rotatable member and the mounting member, and a second position, where the rotatable member parallel to and abuts the mounting member.
    Type: Application
    Filed: January 20, 2011
    Publication date: January 26, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: FANG JIANG, FA-YE LI, PENG TAN, YANG BI, LI-HENG CEN, YUAN-XU ZOU
  • Publication number: 20120017739
    Abstract: A cutting apparatus, configured for cutting a gate of an injection molding part, includes a bottom board, a cutting mechanism located on the bottom board. The cutting mechanism includes a driving member and a cutting member engaged with the driving member. The cutting member includes a first cutting section having a first handle, and a second cutting section having a second handle. The second cutting section is rotatably attached to the first cutting section, the first handle and the second handle abut an inner surface of the driving member, and the driving member is configured to move the first handle and the second handle.
    Type: Application
    Filed: January 18, 2011
    Publication date: January 26, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION LINDUSTRY (ShenZhen) CO., LTD.
    Inventors: FANG JIANG, FA-YE LI, PENG TAN, YANG BI, LI-HENG CEN, YUAN-XU ZOU
  • Publication number: 20120017738
    Abstract: A cutting apparatus for cutting a gate of an injection molding part, includes a bottom board, a pushing mechanism attached to the bottom board; and a cutting mechanism. The cutting mechanism includes a driving member and a cutting member that is engaged with the driving member. The pushing mechanism moves the cutting mechanism in a first direction parallel to the bottom board, for the cutting mechanism to align with the gate. The driving member rotates the cutting mechanism, so the cutting mechanism can cut the gate.
    Type: Application
    Filed: January 18, 2011
    Publication date: January 26, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (Shenzhen) CO., LTD.
    Inventors: FANG JIANG, FA-YE LI, PENG TAN, YANG BI, LI-HENG CEN, YUAN-XU ZOU
  • Patent number: 8013400
    Abstract: A method for scaling channel length in a semiconductor device is provided. The method includes increasing a pitch to reduce a development inspection critical dimension (DICD) for a plurality of polysilicon lines. The polysilicon lines are trimmed to provide a reduced-size channel length, based on the reduced DICD, for each polysilicon line. For a particular embodiment, the semiconductor device is fabricated using a photolithography tool having a wavelength of 248 nm, the pitch is about 800 nm, and the reduced-size channel length is about 0.11 ?m.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: September 6, 2011
    Assignee: National Semiconductor Corporation
    Inventors: Li-Heng Chou, Jiankang Bu
  • Publication number: 20110160156
    Abstract: The present invention relates to a pharmaceutical composition and its preparation method for the eradication of Helicobacter pylorif in the forms of effervescent tablet, suspension or powder. The pharmaceutical composition comprises an effective dose of ?-lactam antibiotic, an effective dose of macrolide antibiotic, an effective dose of antacid such as proton pump inhibitor and H2 blocker, and a pharmaceutical acceptable carrier. An effective dose of alkaline substance such as carbonate or bicarbonate can be added to increase the pH of the stomach when the PPI antacid is used, which can protect the degradation of acid-labile antibiotics or PPI to further increase the bioavailability of the pharmaceutical composition for the purpose of Helicobacter pylori eradication.
    Type: Application
    Filed: June 16, 2010
    Publication date: June 30, 2011
    Applicants: SYNMOSA BIOPHARMA CORPORATION
    Inventors: Chih-Hui Lin, Jui-Ming Chou, Li-Heng Pao, Chia-Wen Chang, Chia-Yi Lin, An-Long Lee
  • Patent number: 7855146
    Abstract: A method for forming a transistor gate includes performing a first exposure of a photo-resist material on a semiconductor device. The first exposure defines a line pattern in the photo-resist material. The method also includes performing a second exposure of the photo-resist material, where the second exposure trims a resist profile of the line pattern. The method further includes etching a conductive material on the semiconductor device to form a transistor gate based on the line pattern. The first exposure could represent a best focus exposure of the photo-resist material, and the second exposure could represent a positive focus exposure of the photo-resist material. The trimming of the line pattern's resist profile may cause the transistor gate to have at least one of a rounded edge and a rounded corner. This may allow a thicker insulating material, such as tetraethylorthosilicate, to be deposited around portions of the transistor gate.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: December 21, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Li-Heng Chou, Jiankang Bu
  • Patent number: 7838203
    Abstract: A system and method are disclosed for increasing retention reliability of a floating gate of a CMOS compatible memory cell. A mask structure is formed with a plurality of apertures near the edges of the mask structure. The size of the apertures is less than a resolution limitation of a photo exposure system. The mask structure is placed over a resist material and the resist material is exposed to light through the apertures of the mask structure. Zero order diffraction light passes though the apertures and imparts energy to the exposed portions of the resist material. A develop process is then used to remove portions of the resist material to form a sloped edge resist pattern. A sloped edge floating gate that is formed from the pattern facilitates the deposition of a thicker oxide layer at the sloped edge of the floating gate and reduces backend leakage current.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: November 23, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Jiankang Bu, Kenneth M. Lewis, Li-Heng Chou
  • Patent number: 7790491
    Abstract: A method includes forming a release layer of a semiconductor device being fabricated, where the release layer has a trapezoidal shape. The method also includes forming a cantilever, which has a cantilever arm formed over the release layer. The method further includes removing at least part of the release layer from under the cantilever arm. The release layer could be formed using a photo-resist material. The photo-resist material can be patterned by exposing the photo-resist material using multiple exposures. A first exposure could expose a portion of the photo-resist material, where the exposed portion has substantially vertical sides. A second exposure could give the exposed portion of the photo-resist material slanted sides. A wet etch could be performed to remove the release layer from under the cantilever arm.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: September 7, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Li-Heng Chou, Jiankang Bu
  • Patent number: 7701400
    Abstract: An antenna assembly with a movable antenna, assembled on an electronic device, includes a fixed portion adapted for assembling to said electronic device, an active portion movably assembled to the fixed portion and receiving the antenna therein, a first guiding means is served by some guiding slots formed on one of the fixed portion and the active portion and some guiding tabs corresponding to the guiding slots and formed on one of the active portion and the fixed portion; wherein the movable antenna capable of moving between a close position and an open position, and said guiding tabs are capable of sliding along the guiding slots and being stopped by the guiding slots to achieve the open position and close position of the antenna.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: April 20, 2010
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Wen-Fong Su, Lung-Sheng Tai, Yao-Shien Huang, Yu-Lung Shih, Li-Heng Cheng
  • Patent number: 7585108
    Abstract: The present invention provides a probe cover for an ear thermometer and a manufacturing method thereof. The probe cover is for sheathing a measuring probe of the ear thermometer, and an engaging means is provided at a bottom of the measuring probe. The probe cover comprises a main body of a hollow structure, an abutting segment and a base. Therein, the main body has an open end and a closed end opposite to the open end. An assembling direction extending from the open end toward the closed end is where the measuring probe is assembled along. Further, the main body has a diameter gradually reducing along the assembling direction. The closed end allows infrared rays to be received by the measuring probe to pass therethrough. Therein, the abutting segment is provided at the open end of the main body, and the base is annularly provided around a periphery of the abutting segment.
    Type: Grant
    Filed: April 26, 2008
    Date of Patent: September 8, 2009
    Assignee: Actherm Inc.
    Inventors: Li-Heng Chuang, Liang-Yi Li
  • Publication number: 20090129437
    Abstract: The present invention provides a probe cover for an ear thermometer and a manufacturing method thereof. The probe cover is for sheathing a measuring probe of the ear thermometer, and an engaging means is provided at a bottom of the measuring probe. The probe cover comprises a main body of a hollow structure, an abutting segment and a base. Therein, the main body has an open end and a closed end opposite to the open end. An assembling direction extending from the open end toward the closed end is where the measuring probe is assembled along. Further, the main body has a diameter gradually reducing along the assembling direction. The closed end allows infrared rays to be received by the measuring probe to pass therethrough. Therein, the abutting segment is provided at the open end of the main body, and the base is annularly provided around a periphery of the abutting segment.
    Type: Application
    Filed: April 26, 2008
    Publication date: May 21, 2009
    Inventors: Li-Heng CHUANG, Liang-Yi LI
  • Patent number: 7518560
    Abstract: A method for tuning a resonant frequency of an antenna includes the steps of providing an antenna having a radiating element operating at a present resonant frequency, determining a target operating frequency of the antenna, mensurating the present resonant frequency of the antenna and calculating a frequency offset between the present resonant frequency and the target operating frequency, providing a dielectric film covered on the radiating element, tuning an thickness and an area of the dielectric film, and repeating the mensurating step and the tuning step till the frequency offset reaches zero.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: April 14, 2009
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Chen-Ta Hung, Hsin Kuo Dai, Li-Heng Chen, Hsiang-Hui Shen
  • Publication number: 20090074708
    Abstract: A UGT2B inhibitor capable of increasing the bio-availability of a drug, is a compound in a free base or a pharmaceutically acceptable salt form that is selected from the group consisting of: capillarisin, isorhamnetin, ?-naphthoflavone, ?-naphthoflavone, hesperetin, terpineol, (+)-limonene, ?-myrcene, swertiamarin, eriodictyol, cineole, apigenin, baicalin, ursolic acid, isovitexin, lauryl alcohol, puerarin, trans-cinnamaldehyde, 3-phenylpropyl acetate, isoliquritigenin, paeoniflorin, gallic acid, genistein, glycyrrhizin, protocatechuic acid, ethyl myristate, umbelliferone, PEG (Polyethylene glycol) 400, PEG 2000, PEG 4000, Tween 20, Tween 60, Tween 80, BRIJ® 58, BRIJ® 76, Pluronic® F68, Pluronic® F127, and a combination thereof.
    Type: Application
    Filed: November 28, 2008
    Publication date: March 19, 2009
    Inventors: Yoa-Pu Hu Oliver, Cheng-Huei Hsiong, Mei-Ting Wang, Li-Heng Pao
  • Publication number: 20080036684
    Abstract: An antenna assembly with a movable antenna, assembled on an electronic device, includes a fixed portion adapted for assembling to said electronic device, an active portion movably assembled to the fixed portion and receiving the antenna therein, a first guiding means is served by some guiding slots formed on one of the fixed portion and the active portion and some guiding tabs corresponding to the guiding slots and formed on one of the active portion and the fixed portion; wherein the movable antenna capable of moving between a close position and an open position, and said guiding tabs are capable of sliding along the guiding slots and being stopped by the guiding slots to achieve the open position and close position of the antenna.
    Type: Application
    Filed: August 8, 2007
    Publication date: February 14, 2008
    Inventors: Wen-Fong Su, Lung-Sheng Tai, Yao-Shien Huang, Yu-Lung Shih, Li-Heng Cheng
  • Patent number: 7218400
    Abstract: A semiconductor wafer is disclosed that includes a plurality of fields, including a plurality of alignment fields. Each alignment field includes a plurality of intra-field small scribe lane primary mark (SSPM) overlay mark pairs there around. The SSPM mark pairs allow for in-situ, non-passive intra-field alignment correction. In one embodiment, there may be between two and four alignment fields, and between two and four SSPM mark pairs around each alignment field. The SSPM marks of each mark pair may be extra scribe-lane marks.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: May 15, 2007
    Assignee: Taiwan Semiconductor Manufacturing Company Ltd.
    Inventors: Grace H. Ho, Ming-Che Wu, Li-Heng Chou, Hung-Chang Hsieh, Jung Ting Chen, Yao-Ching Ku
  • Patent number: 7169763
    Abstract: The present invention provides cytochrome P450 3A (CYP3A) inhibitors and enhancers. Examples of the CYP3A inhibitors include free bases or pharmacologically acceptable salts of at least one of the following compounds: ?-naphthoflavone, ?-naphthoflavone, apigenin, baicalein, ?-myrcene, catechin, 3-phenylpropyl acetate, formononetin, gallic acid, hesperetin, hesperidin, isoquercitrin, lauryl alcohol, luteolin, luteolin-7-glycoside, narigin, nordihydroguaiaretic acid, quercitrin, swertiamarin, terpineol, and trans-cinnamaldehyde. Examples of the CYP3A enhancers include free bases or pharmacologically acceptable salts of at least one of the following compounds: apigenin, formononetin, and luteolin-7-glycoside. The CYP3A inhibitors can be used, alone or co-administered with a drug, to improve the drug bioavailability.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: January 30, 2007
    Inventors: Oliver Yoa-Pu Hu, Cheng-Huei Hsiong, Benjamin Pei-Chung Kuo, Li-Heng Pao
  • Patent number: 7089440
    Abstract: A data processing system includes first, second, and third agents connected to a shared bus. The third agent is able to receive information via the shared bus from the first agent or from the second agent. The third agent includes a skew compensation circuit to determine signal skew in signal received via the shared bus and to compensate for the skew by adding delay into selected signals of the bus. The skew compensation circuit determines whether the first agent or the second agent is the sender of information received by the third agent via the shared bus. The skew compensation circuit alters the skew compensation based on the identity of the sender such that the delay into the bus signals is specific to the corresponding sender.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: August 8, 2006
    Assignee: International Business Machines Corporation
    Inventor: Leon Li-Heng Wu
  • Publication number: 20060069042
    Abstract: This invention is to provide multiple specific inhibitors of cytochrome P450 isozyme CYP2C9. These inhibitors can be derived from any combinations with the following compounds including: Tamarixetin, Formononetin, isoliquritigenin, Phloretin, luteolin, Quercitrin, quercetin, myricetin, Wongonin, Puerarin, Genistein, Nordihydroguaiaretic acid, Narigenin, Capillarisin, Chrysin, Fisefin, eriodictyol, 6-Gingerol, Isorhamneti, isoquercitrin, Morin, (+)-Taxifolin, isovitexin, 3-Phenylpropyl Acetate, Oleanolic acid, ursolic acid, ?-Myrcene, cinnamic acid, Luteolin-7-Glucoside, Liquiritin, (+)Limonene, Homoorientin, Swertiamarin, Embelin, Daidzein, Poncirin, (?)-Epicatechin, ergosterol. These natural products can be used to enhance the bioavailability of therapeutic agents (drugs).
    Type: Application
    Filed: September 24, 2004
    Publication date: March 30, 2006
    Inventors: Oliver Hu, Hong-Jaan Wang, Cheng-Huei Hsiong, Li-Heng Pao