Patents by Inventor Roy Wu
Roy Wu 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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Publication number: 20220187417Abstract: A distributed radar system, apparatus, architecture, and method is provided for coherently combining physically distributed radars to jointly' produce target scene information in a coherent fashion without sharing a common local oscillator (LO) reference by configuring a first (slave) radar to apply fast and slow time processing steps to target returns generated from a second (master) radar, to compute an estimated frequency offset and an estimated phase offset between the first and second radars based on information derived from the fast and slow time processing steps, and to apply the estimated frequency offset and estimated phase offset to generate a bi-static virtual array aperture at the first radar that is coherent in frequency and phase with a mono-static virtual array aperture generated at the second radar, thereby achieving better sensitivity, finer angular resolution, and low false detection rate.Type: ApplicationFiled: January 27, 2022Publication date: June 16, 2022Inventors: Ryan Haoyun Wu, Arunesh Roy
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Patent number: 10563026Abstract: A heat-shrinkable polyester film is made from a polyester resin composition which includes an amorphous polyalkylene benzenedicarboxylate resin and a polyester elastomer resin. The polyester elastomer resin includes hard segments and soft segments, and is prepared by copolycondensation of an aromatic dicarboxylic acid and a diol component. The diol component includes a C2-C4 alkylene glycol for the hard segments and a polyethylene glycol with an average molecular weight not greater than 400 for the soft segments. The soft segments of the polyester elastomer resin are in an amount ranging from 1 part by weight to 2 parts by weight based on 100 parts by weight of the polyester resin composition.Type: GrantFiled: May 24, 2018Date of Patent: February 18, 2020Assignee: Far Eastern New Century CorporationInventors: Li-Ling Chang, Chun-Chia Hsu, Shu-Chuan Lee, Roy Wu
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Publication number: 20190161589Abstract: A heat-shrinkable polyester film is made from a polyester resin composition which includes an amorphous polyalkylene benzenedicarboxylate resin and a polyester elastomer resin. The polyester elastomer resin includes hard segments and soft segments, and is prepared by copolycondensation of an aromatic dicarboxylic acid and a diol component. The diol component includes a C2-C4 alkylene glycol for the hard segments and a polyethylene glycol with an average molecular weight not greater than 400 for the soft segments. The soft segments of the polyester elastomer resin are in an amount ranging from 1 part by weight to 2 parts by weight based on 100 parts by weight of the polyester resin composition.Type: ApplicationFiled: May 24, 2018Publication date: May 30, 2019Inventors: Li-Ling Chang, Chun-Chia Hsu, Shu-Chuan Lee, Roy Wu
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Publication number: 20170002175Abstract: A copolyester composition includes a copolyester, an inorganic additive, and an aliphatic organic additive. The copolyester includes a hard segment including polybutylene terephthalate, and a soft segment including polyethylene gylcol and having a weight average molecular weight ranging from 2500 to 10000. The aliphatic organic additive has a melting point between a crystallization temperature of the hard segment and a melting point of the soft segment, and has a molecular weight not larger than 1000. The inorganic additive is in an amount ranging from 0.02 to 1.00 part by weight and the aliphatic organic additive is in an amount ranging from 0.02 to 1.00 part by weight.Type: ApplicationFiled: June 10, 2016Publication date: January 5, 2017Applicant: Far Eastern New Century CorporationInventors: Chun-Chia HSU, Roy WU, Li-Ling CHANG, Shu-Chuan LEE, Wei-Ling TSAO
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Patent number: 9464168Abstract: A method for preparing a modified copolyester includes the steps of: i) subjecting a mono(2-hydroxylalkyl)dicarboxylate to an esterification reaction with an isosorbide to form an intermediate; and ii) subjecting the intermediate to a condensation polymerization in the presence of a condensation polymerization catalyst. The method may enhance the reactivity of isosorbide, reduce the amount of water by-product, and raise the glass transition temperature and the color stability of the copolyester thus obtained.Type: GrantFiled: August 21, 2015Date of Patent: October 11, 2016Assignee: Far Eastern New Century CorporationInventors: Roy Wu, Pang-Chin Liu, Yi-Hsuan Tang
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Publication number: 20160185900Abstract: A method for preparing a modified copolyester includes the steps of: i) subjecting a mono(2-hydroxylalkyl)dicarboxylate to an esterification reaction with an isosorbide to form an intermediate; and ii) subjecting the intermediate to a condensation polymerization in the presence of a condensation polymerization catalyst. The method may enhance the reactivity of isosorbide, reduce the amount of water by-product, and raise the glass transition temperature and the color stability of the copolyester thus obtained.Type: ApplicationFiled: August 21, 2015Publication date: June 30, 2016Inventors: Roy Wu, Pang-Chin Liu, Yi-Hsuan Tang
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Publication number: 20150283429Abstract: A golf club may include a control unit that detects a swing of the golf club and generates a signal based on at least one goal swing parameter during the swing of the golf club. The golf club may include a stimulation generation module, configured to generate a stimulation in response to the signal.Type: ApplicationFiled: April 8, 2015Publication date: October 8, 2015Applicant: William Marsh Rice UniversityInventors: Sid Mullick, Chelsea Rodrigues, Matthew Lopez, Yize Zhao, Roy Wu, Gary Woods, Laurence Ray Simar, JR.
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Patent number: 8936743Abstract: A method of making a polylactic acid based article includes: (a) providing a sheet having a crystallinity ranging from 0% to 15% and including a polylactic acid polymer composition, the polylactic acid polymer composition having a polylactic acid polymer, a copolyester polymer, and a crystal nucleating agent; (b) heating the sheet to maintain a surface of the sheet at a temperature ranging from 95° C. to 105° C. while keeping the crystallinity of the sheet lower than 20%; and (c) thermoforming the sheet in a mold having a temperature ranging from 95° C. to 130° C. so as to form a polylactic acid based article having a crystallinity ranging from 35% to 45%.Type: GrantFiled: October 31, 2011Date of Patent: January 20, 2015Assignee: Far Eastern New Century CorporationInventors: Chi-Wei Ciou, Li-Ling Chang, Roy Wu
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Publication number: 20140018512Abstract: A reactant composition includes: a diol component; a diacid-derived component; and a modifier represented by the following formula (I): wherein R1, R2, and R3 independently represent H or a methyl group, and at least one of R1, R2, and R3 is a methyl group. A polyester made from the reactant composition is also disclosed.Type: ApplicationFiled: May 30, 2013Publication date: January 16, 2014Applicant: FAR EASTERN NEW CENTURY CORPORATIONInventors: Roy Wu, Yi-Hsuan Tang, Hsin-Yi Chou
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Patent number: 8575270Abstract: A copolyester composition includes: an aliphatic-aromatic copolyester; a coupling agent including a compound having an epoxy functional group; and a cocatalyst including a carboxylate of manganese and a carboxylate of zinc, wherein a weight ratio of the carboxylate of manganese to the carboxylate of zinc ranges from 1:3 to 3:1, and the cocatalyst is present in an amount ranging from 0.03-0.2 part by weight based on 100 parts by weight of the aliphatic-aromatic copolyester.Type: GrantFiled: August 30, 2011Date of Patent: November 5, 2013Assignee: Far Eastern New Century CorporationInventors: Chih-Ying Kuo, Chuan-Hao Hsu, Chi-Wei Ciou, Li-Ling Chang, Roy Wu
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Publication number: 20120116020Abstract: A copolyester composition includes: an aliphatic-aromatic copolyester; a coupling agent including a compound having an epoxy functional group; and a cocatalyst including a carboxylate of manganese and a carboxylate of zinc, wherein a weight ratio of the carboxylate of manganese to the carboxylate of zinc ranges from 1:3 to 3:1, and the cocatalyst is present in an amount ranging from 0.03-0.2 part by weight based on 100 parts by weight of the aliphatic-aromatic copolyester.Type: ApplicationFiled: August 30, 2011Publication date: May 10, 2012Inventors: Chih-Ying KUO, Chuan-Hao Hsu, Chi-Wei Ciou, Li-Ling Chang, Roy Wu
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Publication number: 20120104655Abstract: A method of making a polylactic acid based article includes: (a) providing a sheet having a crystallinity ranging from 0% to 15% and including a polylactic acid polymer composition, the polylactic acid polymer composition having a polylactic acid polymer, a copolyester polymer, and a crystal nucleating agent; (b) heating the sheet to maintain a surface of the sheet at a temperature ranging from 95° C. to 105° C. while keeping the crystallinity of the sheet lower than 20%; and (c) thermoforming the sheet in a mold having a temperature ranging from 95° C. to 130° C. so as to form a polylactic acid based article having a crystallinity ranging from 35% to 45%.Type: ApplicationFiled: October 31, 2011Publication date: May 3, 2012Inventors: Chi-Wei CIOU, Li-Ling Chang, Roy Wu
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Patent number: 7906563Abstract: A polysiloxane-based prepolymer of a three-dimensional network structure produced by hydrolysis-condensation of a first mixture having a tetra-alkoxysilane compound, an ethylenically unsaturated organosiloxane monomer, and a hydrophilic silicon-containing polyfunctional monomer. A hydrogel is prepared by polymerizing a second mixture having the aforesaid polysiloxane-based prepolymer, an acrylated silicon-containing monomer, and an ethylenically unsaturated hydrophilic monomer.Type: GrantFiled: December 1, 2008Date of Patent: March 15, 2011Assignee: Far Eastern New Century CorporationInventors: Ching-Ping Huang, Roy Wu, Ken-Yuan Chang
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Publication number: 20100168344Abstract: A polyester based blend includes: a polyester to be formed into a polymer matrix for a packaging article when the polyester based blend is melted and extruded; an oxidative catalyst to be dispersed in the polymer matrix; and an additive of an aldehyde that is to be dispersed in the polymer matrix, that is catalytically reactive with oxygen at room temperature in the presence of the oxidative catalyst, and that has a melting point greater than room temperature. A packaging article made from the melt-extruded polyester based blend is also disclosed.Type: ApplicationFiled: December 29, 2009Publication date: July 1, 2010Applicant: Far Eastern New Century CorporationInventors: Roy Wu, Pang-Chin Liu, Shu-Chen Lee, Hsiang-Chin Tsai
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Publication number: 20090170976Abstract: A polysiloxane-based prepolymer of a three-dimensional network structure produced by hydrolysis-condensation of a first mixture having a tetra-alkoxysilane compound, an ethylenically unsaturated organosiloxane monomer, and a hydrophilic silicon-containing polyfunctional monomer. A hydrogel is prepared by polymerizing a second mixture having the aforesaid polysiloxane-based prepolymer, an acrylated silicon-containing monomer, and an ethylenically unsaturated hydrophilic monomer.Type: ApplicationFiled: December 1, 2008Publication date: July 2, 2009Inventors: Ching-Ping Huang, Roy Wu, Ken-Yuan Chang
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Publication number: 20080177007Abstract: An acetaldehyde scavenger includes: a polymerization product of at least one of an aromatic dicarboxylic acid having a carbon number from 8 to 16 and an ester derivative of the aromatic dicarboxylic acid, and a diol compound having a carbon number from 3 to 15.Type: ApplicationFiled: January 17, 2008Publication date: July 24, 2008Inventors: Roy Wu, Johnson J. G. Wang
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Publication number: 20080057237Abstract: A heat-shrinkable PET film comprises a thermally stretched film body exhibiting shape-memory characteristics and made from a PET material of a modified PET composition that includes terephthalic acid, ethylene glycol, and a modifier selected from 1,3-dihydroxy-2-methylpropane, 1,3-dihydroxy-2-methylpropane alkoxylate, 2,5-dimethyl-2,5-hexanediol, and combinations thereof.Type: ApplicationFiled: August 29, 2007Publication date: March 6, 2008Applicant: FAR EASTERN TEXTILE LTD.Inventors: Pang-Chin LIU, Chih-Heng WU, Chih-Wei CHU, Roy WU
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Publication number: 20080058488Abstract: A PET material of a modified PET composition includes: terephthalic acid; ethylene glycol; a modifier; and a chain branching agent selected from one of a non-cyclic compound and a cyclic compound. The non-cyclic compound has at least three functional groups, and the cyclic compound, after ring opening, has at least three functional groups. Each of the functional groups of each of the non-cyclic compound and the cyclic compound is selected from hydroxyl group, carboxyl group, amine group, epoxy group, NCO, and COOR, in which R represents a C1-C18 alkyl group.Type: ApplicationFiled: August 29, 2007Publication date: March 6, 2008Applicant: FAR EASTERN TEXTILE LTD.Inventors: Pang-Chin LIU, Chih-Heng WU, Cheng-Hsiang CHUNG, Chih-Wei CHU, Roy WU
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Publication number: 20070259195Abstract: A polylactic acid composition includes polylactic acid, and a biodegradable nucleating polymer in an amount from 0.1 to 10 wt %, based on the total weight of the polylactic acid composition. The biodegradable nucleating polymer is used as a nucleating agent, and is selected from the group of aliphatic polyester other than polylactic acid, aliphatic-aromatic copolyester, and polyethylene glycol.Type: ApplicationFiled: May 4, 2007Publication date: November 8, 2007Inventors: Ming-Tse Chou, Li-Ling Chang, Roy Wu