Patents by Inventor Hann-Tsong Wang
Hann-Tsong Wang 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).
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Patent number: 7459045Abstract: A machine for sealing a cryotube with a thermoplastic film, which is heated and shrunk, is disclosed. The cryotube has a cap with threads, a tube body and a tubular thermoplastic film, wherein the cap is threadably connected to an open end of the tube body and the thermoplastic film is received by the cap and the tube body at the connection thereof. The machine includes a holder for holding the cryotube, a rotation mechanism for rotating the cryotube around a longitudinal axis of the cryotube, and a heating mechanism for heating the thermoplastic film of the cryotube hold in the holder, so that the thermoplastic film shrinks.Type: GrantFiled: June 6, 2005Date of Patent: December 2, 2008Assignee: Food Industry Research and Development InstituteInventors: Shiaw-Min Hwang, I-Ting Kao, Hsin-I Chen, Chen-Der Tsai, Hann-Tsong Wang
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Publication number: 20060137824Abstract: A machine for sealing a cryotube with a thermoplastic film, which is heated and shrunk, is disclosed. The cryotube has a cap with threads, a tube body and a tubular thermoplastic film, wherein the cap is threadably connected to an open end of the tube body and the thermoplastic film is received by the cap and the tube body at the connection thereof. The machine includes a holder for holding the cryotube, a rotation mechanism for rotating the cryotube around a longitudinal axis of the cryotube, and a heating mechanism for heating the thermoplastic film of the cryotube hold in the holder, so that the thermoplastic film shrinks.Type: ApplicationFiled: June 6, 2005Publication date: June 29, 2006Applicant: Food Industry Research and Development InstituteInventors: Shiaw-Min Hwang, I-Ting Kao, Hsin-I Chen, Chen-Der Tsai, Hann-Tsong Wang
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Patent number: 6946062Abstract: The present invention is an electropolishing/grinding device for an inner surface of a long tube, including at least one long tube, one electrode, at least two partitions, one fixed magnet mechanism, one driving apparatus and an axial driven mechanism. The fixed magnet mechanism and the driving apparatus form a magnetic levitation effect, which uses magnetic repulsiveness and magnetic attraction to keep the partitions away from the inner surface and avoid an eccentric situation. One of the two partitions has a plurality of springs, a plurality of protruding objects and a plurality of abrasive devices interconnected and firmly touching the inner surface of the tube for grinding.Type: GrantFiled: March 1, 2002Date of Patent: September 20, 2005Assignee: Industrial Technology Research InstituteInventors: Chun-Hung Lin, Chen-Der Tsai, Hann-Tsong Wang, Jiun-Hung Chen, De-Chang Lin
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Patent number: 6854713Abstract: The diaphragm valve uses a metal dish-type diaphragm set to control the inflow and outflow of fluid. The metal dish-type diaphragm set is above an air flow channel to control the stem above the metal dish-type diaphragm set, and the air will be blocked by pressing the metal dish-type diaphragm to make it fit the metal valve base in the air flow channel; this non-metal valve base is fixed in the air flow channel by a fixed shrunk ring with a taper cross section, and the in-between metal diaphragm in the metal dish-type diaphragm set is annular in the center to reduce the metallic friction between metal diaphragms, to increase application times and to lower the leakage rate of the diaphragm valve.Type: GrantFiled: March 24, 2003Date of Patent: February 15, 2005Assignee: Industrial Technology Research InstituteInventors: Chun-Hung Lin, Chen-Der Tsai, Chin-Ching Wu, Jung-Chen Ho, Hann-Tsong Wang
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Publication number: 20040108485Abstract: The diaphragm valve uses a metal dish-type diaphragm set to control the inflow and outflow of fluid. The metal dish-type diaphragm set is above an air flow channel to control the stem above the metal dish-type diaphragm set, and the air will be blocked by pressing the metal dish-type diaphragm to make it fit the metal valve base in the air flow channel; this non-metal valve base is fixed in the air flow channel by a fixed shrunk ring with a taper cross section, and the in-between metal diaphragm in the metal dish-type diaphragm set is annular in the center to reduce the metallic friction between metal diaphragms, to increase application times and to lower the leakage rate of the diaphragm valve.Type: ApplicationFiled: March 24, 2003Publication date: June 10, 2004Inventors: Chun-Hung Lin, Chen-Der Tsai, Chin-Ching Wu, Jung-Chen Ho, Hann-Tsong Wang
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Patent number: 6660138Abstract: The present invention is an electropolishing process and device for electropolishing an inner surface of a long tube, especially applied to a long tube of greater than two meters and a diameter range between 0.3 and 5 cm. Wherein, the present invention comprises at least one tube, and one complex electrode. An inner surface of the tube is for electropolishing process, and it is an anode as well. The electrode is a cathode and placed on a center of a partition. An end of electrode connects to a cable, the cable is driven by an axial mechanism to be moved the electrode toward the axial mechanism itself. Inside of the tube is full o electrolyte, which is an electrifying medium to connect both anode and cathode. Further, electrolyte cooperates with the electrode to perform the electropolishing process on the inner surface of tube.Type: GrantFiled: February 19, 2002Date of Patent: December 9, 2003Assignee: Industrial Technology Research InstituteInventors: Chun-Hung Lin, Chen-Der Tsai, Yun-Sheng Chung, Chin-Ching Wu, Yuh-Feng Chen, Hann-Tsong Wang
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Publication number: 20030111338Abstract: The present invention is an electropolishing/grinding means for an inner surface of a long tube, which comprises at least one long tube, one electrode, at least two partitions, one fixed magnet mechanism, one driving apparatus and an axial driven mechanism; wherein, cooperation of the partitions, the fixed magnet mechanism and the driving apparatus is to form a magnetic levitation effect, which means using magnetic repulsiveness and magnetic attraction to keep away from the partitions and inner surface and avoid the eccentric situation; further, one of the two partitions has plural springs, plural protruding objects and plural abrasives to cooperate each other for firmly the abrasives touching onto the inner surface.Type: ApplicationFiled: March 1, 2002Publication date: June 19, 2003Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chun-Hung Lin, Chen-Der Tsai, Hann-Tsong Wang, Jiun-Hung Chen, De-Chang Lin
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Publication number: 20030098245Abstract: The present invention is an electropolishing process means for an inner surface of a long tube, especially applied to a long tube of greater than two meters and a diameter range between 0.3 to 5 cm. Wherein, the present invention comprises at least one tube, one complex electrode; an inner surface of the tube is for electropolishing process, and it is an anode as well; the electrode is a cathode and placed on a center of a partition; an end of electrode connects to a cable, the cable is driven by an axial mechanism to be moved toward the axial mechanism itself; inside tube are full of electrolyte, which is an electrifying medium to connect both anode and cathode, further, electrolyte cooperates with electrode to move for electropolishing process the inner surface of tube.Type: ApplicationFiled: February 19, 2002Publication date: May 29, 2003Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chun-Hung Lin, Chen-Der Tsai, Yun-Sheng Chung, Chin-Ching Wu, Yuh-Feng Chen, Hann-Tsong Wang
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Patent number: 6439254Abstract: An MFC controlling device automation method and related system. The method mainly comprises the steps of automatically controlled algorithmic obtaining of MFC open loop system parameters by an identification technique; automatically controlled algorithmic determining of PI control parameters by a dominant pole-placement method; and automatically controlled calculating of a fuzzy logic rule table. The steps form an automatically controlled single closed loop. By performing said steps, multiple PI control parameter sets are obtainable fast and in an automatic way, and a calculation is done to form a refined fuzzy rule data table, so that a greatly enhanced MFC reaction function is attained.Type: GrantFiled: November 30, 2000Date of Patent: August 27, 2002Assignee: Industrial Technology Research InstituteInventors: Yung-Ju Huang, Yun-Sheng Chung, Hann-Tsong Wang, Mu-Huo Cheng, Wen Jiang Yang
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Publication number: 20020095225Abstract: An MFC controlling device automation method and related system. The method mainly comprises the steps of automatically controlled algorithmic obtaining of MFC open loop system parameters by an identification technique; automatically controlled algorithmic determining of PI control parameters by a dominant pole-placement method; and automatically controlled calculating of a fuzzy logic rule table. The steps form an automatically controlled single closed loop. By performing said steps, multiple PI control parameter sets are obtainable fast and in an automatic way, and a calculation is done to form a refined fuzzy rule data table, so that a greatly enhanced MFC reaction function is attained.Type: ApplicationFiled: November 30, 2000Publication date: July 18, 2002Inventors: Yung-Ju Huang, Yun-Sheng Chung, Hann-Tsong Wang, Mu-Huo Cheng, Wen Jiang Yang
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Patent number: 6420886Abstract: A membrane probe card is provided. The membrane probe card includes a pressure mechanism having an upper-housing and a support block. The support block has a spring system for providing a distance of travel to the support block. A printed circuit board is coupled to the pressure mechanism for providing electrical connection to a test apparatus. A membrane assembly is coupled to the pads on a wafer for providing electric connection to the printed circuit board. The membrane assembly is a replaceable and modularized component for application to integrated circuits with various layouts and dimensions.Type: GrantFiled: April 20, 2000Date of Patent: July 16, 2002Assignee: Urex Precision, Inc.Inventors: Han-Shin Ho, Wei-Hai Lai, Chien-Shuan Kuo, Deng-Tswen Shieh, Wen-Cheng Hsu, Wea-Fun Fan, Hann-Tsong Wang, Yuh-Feng Chen
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Patent number: 6341769Abstract: A non-contact pick-up device is disclosed. The non-contact pick-up device mainly includes a disk, and a plurality of air nozzles on the disk. Each nozzle has an air channel; and an upper end of the channel is tilt outwards. Therefore, as a disc-shaped article is placed on the disk; air jets out from the nozzles, due to Bernoulli principle, pressure difference is formed on the disc-shaped article. Thus, due to the action of atmosphere pressure, the disc-shaped article will be clamped. The pick-up device may be used in semiconductor manufacturing process for clamping a wafer.Type: GrantFiled: February 9, 2001Date of Patent: January 29, 2002Assignee: Industrial Technology Research InstituteInventors: Chun-Hung Lin, Tzer-Kun Lin, Yun-Chuan Tu, Hann-Tsong Wang, Chin-Ching Wu
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Patent number: 6176694Abstract: A power-saving, low-noise double screw rotor assembly, which includes a casing and a pair of screw rotors, wherein the casing has an inside wall defining a compression chamber, an inlet port and an outlet port communicating with the compression chamber. The screw rotors are mounted in the compression chamber and meshed together, each having a spiral thread around the periphery. The thread defines an equidistant pitch. The addendum of the thread defines an outside diameter and is abutted against the inside wall of the casing, the dedendum defines a root diameter. A thread height is defined between the addendum of thread and the dedendum of thread, the thread height gradually reduces in direction from the inlet port toward the outlet port. The dedendum of thread and side walls of the thread of each screw rotor define with the inside wall of the casing at least one transfer chamber having a volume gradually reducing in direction from the inlet port toward the outlet port.Type: GrantFiled: August 12, 1999Date of Patent: January 23, 2001Assignee: Industrial Technology Research InstituteInventors: Hong-Sheng Fang, Zhang-Hua Fong, Hann-Tsong Wang, Cheng-Chan Tsai, Jiun-Hung Chen, Ming-Fong Chen