Patents by Inventor Tay-Yuan Chen
Tay-Yuan 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).
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Patent number: 7014781Abstract: A composition and the method for sustaining the biocidal activity of chlorinated polystyrene hydantoin beads. The method comprises supplying a continuous low level halogen concentration to the chlorinated polystyrene hydantoin beads in the water to be treated that flows in contact with the chlorinated polystyrene hydantoin beads, resulting in treated water suitable for drinking.Type: GrantFiled: July 12, 2005Date of Patent: March 21, 2006Assignee: Vanson Halosource, Inc.Inventors: Michael A. Bridges, Hiroyuki Kawai, Tay-Yuan Chen, Everett J. Nichols, Jeffrey F. Williams, Steven McClure, Jerry Wetherbee
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Publication number: 20050249694Abstract: A composition and the method for sustaining the biocidal activity of chlorinated polystyrene hydantoin beads. The method comprises supplying a continuous low level halogen concentration to the chlorinated polystyrene hydantoin beads in the water to be treated that flows in contact with the chlorinated polystyrene hydantoin beads, resulting in treated water suitable for drinking.Type: ApplicationFiled: July 12, 2005Publication date: November 10, 2005Applicant: Vanson Halosource, Inc.Inventors: Michael Bridges, Hiroyuki Kawai, Tay-Yuan Chen, Everett Nichols, Jeffrey Williams, Steven McClure, Jerry Wetherbee
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Publication number: 20050104034Abstract: A composition and the method for sustaining the biocidal activity of chlorinated polystyrene hydantoin beads. The method comprises supplying a continuous low level halogen concentration to the chlorinated polystyrene hydantoin beads in the water to be treated that flows in contact with the chlorinated polystyrene hydantoin beads, resulting in treated water suitable for drinking.Type: ApplicationFiled: September 27, 2004Publication date: May 19, 2005Applicant: Vanson Halosource, Inc.Inventors: Michael Bridges, Hiroyuki Kawai, Tay-Yuan Chen, Everett Nichols, Jeffrey Williams, Steven McClure, Jerry Wetherbee
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Patent number: 6294185Abstract: Cyclic amine monomers and polymers and N-halamine biocidal polymer compounds are provided. Methods of making and using the same wherein the functional groups unhalogenated or halogenated hydantoins, triazine diones, imidazolidinones, and pyrimidinones are substituted onto inexpensive polymer units such as polystyrene, polyethylene, and modified polymethacrylamide are provided. The cyclic amine monomers and polymers can be utilized to form the biocidal N-halamine polymers. These N-halamine polymers are stable, insoluble biocides which release only small amounts of free halogen and other impurities. They can be useful as disinfectants for potable water, swimming pools, hot tubs, industrial water systems, cooling towers, air-conditioning systems, gas streams, paints, oils, ointments, fabrics, rubber materials, sterile bandages, coatings, hard surfaces, liners of containers, and the like.Type: GrantFiled: September 22, 1994Date of Patent: September 25, 2001Assignee: Auburn UniversityInventors: Shelby D. Worley, Gang Sun, Wanying Sun, Tay-Yuan Chen
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Patent number: 6187613Abstract: The present invention provides a process for underfill encapsulating a flip chip which is driven by pressure. First, a metal foil is placed on a flip chip that has been connected to a substrate. Then, a downward pressure is applied to the metal foil so as to form a space among the metal foil, the flip chip, and the substrate. Then, an encapsulant is filled into the space under pressure. The chip on which the metal foil has been placed and that has been encapsulated is moved away. Then, another metal foil is placed on another flip chip that has been connected to the substrate to undergo the above-mentioned encapsulation process. Encapsulation of the next chip can begin without waiting the encapsulant packaging the prior chip to cure. Thus, the efficiency of the encapsulating machine can be greatly enhanced, and the conventional problems of encapsulant adhering to the mold can also be solved.Type: GrantFiled: November 4, 1999Date of Patent: February 13, 2001Assignee: Industrial Technology Research InstituteInventors: Chin-Yung Wu, Tay-Yuan Chen
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Patent number: 6020491Abstract: Cyclic amine monomers and polymers and N-halamine biocidal polymer compounds are provided. Representative monomers have the structure: ##STR1## wherein R.sup.1 is selected from the group consisting of hydrogen and from C.sub.1 to C.sub.4 alkyl; R.sup.10 is a bond or parasubstituted phenyl; and R.sup.11 is cyclic amine unit of a 5- to 6-membered heterocyclic ring selected from the group consisting of: (a) 1,3,5-triazine-2,4-dione; (b) 3,4,5,6-tetrahydro(1H)pyrimidin-2-one; and (c) 2-oxazolidinone; R.sup.10 is attached to a linkage carbon of R.sup.11, wherein said linkage carbon of R.sup.11 is a carbon located on the ring of R.sup.11 and is substituted with a substituent selected from the group consisting of C.sub.1 -C.sub.4 alkyl, benzyl, and alkyl-substituted benzyl; from 0 to 2 non-linkage carbon members are a carbonyl group; and from 0 to 1 non-linkage carbon member is substituted with a moiety selected from the group consisting of C.sub.1 -C.sub.Type: GrantFiled: July 7, 1998Date of Patent: February 1, 2000Assignee: Auburn UniversityInventors: Shelby D. Wonley, Gang Sun, Wanying Sun, Tay-Yuan Chen
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Patent number: 5889130Abstract: Cyclic amine monomers and polymers and N-halamine biocidal polymer compounds are provided. Methods of making and using the same wherein the functional groups unhalogenated or halogenated hydantoins, triazine diones, imidazolidinones, and pyrimidinones are substituted onto inexpensive polymer units such as polystyrene, polyethylene, and modified polymethacrylamide are provided. The cyclic amine monomers and polymers can be utilized to form the biocidal N-halamine polymers. These N-halamine polymers are stable, insoluble biocides which release only small amounts of free halogen and other impurities. They can be useful as disinfectants for potable water, swimming pools, hot tubs, industrial water systems, cooling towers, air-conditioning systems, gas streams, paints, oils, ointments, fabrics, rubber materials, sterile bandages, coatings, hard surfaces, liners of containers, and the like.Type: GrantFiled: July 31, 1997Date of Patent: March 30, 1999Assignee: Auburn UniversityInventors: Shelby D. Worley, Gang Sun, Wanying Sun, Tay-Yuan Chen
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Patent number: 5808089Abstract: Substituted 5- to 6-membered heterocyclic amine monomers are provided. Methods of making the same, wherein a polymer is heated under vacuum to crack it into monomeric units and the aceto moiety is converted to a selected moiety, are provided. Monomers including unhalogenated or halogenated hydantoins, triazine diones, imidazolidinones, or pyrimidinones are provided. The heterocyclic amine monomers can be utilized to form biocidal N-halamine polymers which are stable, insoluble biocides which release only small amounts of free halogen and other impurities.Type: GrantFiled: June 7, 1995Date of Patent: September 15, 1998Assignee: Auburn UniversityInventors: Shelby D. Worley, Gang Sun, Wanying Sun, Tay-Yuan Chen
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Patent number: 5670646Abstract: Cyclic amine monomers and polymers and N-halamine biocidal polymer compounds are provided. Methods of making and using the same wherein the functional groups unhalogenated or halogenated hydantoins, triazine diones, imidazolidinones, and pyrimidinones are substituted onto inexpensive polymer units such as polystyrene, polyethylene, and modified polymethacrylamide are provided. The cyclic amine monomers and polymers can be utilized to form the biocidal N-halamine polymers. These N-halamine polymers are stable, insoluble biocides which release only small amounts of free halogen and other impurities. They can be useful as disinfectants for potable water, swimming pools, hot tubs, industrial water systems, cooling towers, air-conditioning systems, gas streams, paints, oils, ointments, fabrics, rubber materials, sterile bandages, coatings, hard surfaces, liners of containers, and the like.Type: GrantFiled: June 7, 1995Date of Patent: September 23, 1997Assignee: Auburn UniversityInventors: Shelby D. Worley, Gang Sun, Wanying Sun, Tay-Yuan Chen
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Patent number: 5490983Abstract: Cyclic N-halamine biocidal polymer compounds and methods of using the same wherein the functional groups halogenated hydantoins, triazine diones, imidazolidinones, and pyrimidinones are substituted onto inexpensive polymer units such as polystyrene, polyethylene, and modified polymethacrylamide are provided. These N-halamine polymers are stable, insoluble biocides which release only small amounts of free halogen and other impurities. They will be useful as disinfectants for potable water, swimming pools, hot tubs, industrial water systems, cooling towers, air-conditioning systems, gas streams, paints, oils, ointments, fabrics, sterile bandages, coatings, hard surfaces, liners of containers, and the like.Type: GrantFiled: July 28, 1994Date of Patent: February 13, 1996Assignee: Auburn UniversityInventors: Shelby D. Worley, Gang Sun, Wanying Sun, Tay-Yuan Chen