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).

  • Publication number: 20220187417
    Abstract: 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: Application
    Filed: January 27, 2022
    Publication date: June 16, 2022
    Inventors: Ryan Haoyun Wu, Arunesh Roy
  • Patent number: 10563026
    Abstract: 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: Grant
    Filed: May 24, 2018
    Date of Patent: February 18, 2020
    Assignee: Far Eastern New Century Corporation
    Inventors: Li-Ling Chang, Chun-Chia Hsu, Shu-Chuan Lee, Roy Wu
  • Publication number: 20190161589
    Abstract: 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: Application
    Filed: May 24, 2018
    Publication date: May 30, 2019
    Inventors: Li-Ling Chang, Chun-Chia Hsu, Shu-Chuan Lee, Roy Wu
  • Publication number: 20170002175
    Abstract: 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: Application
    Filed: June 10, 2016
    Publication date: January 5, 2017
    Applicant: Far Eastern New Century Corporation
    Inventors: Chun-Chia HSU, Roy WU, Li-Ling CHANG, Shu-Chuan LEE, Wei-Ling TSAO
  • Patent number: 9464168
    Abstract: 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: Grant
    Filed: August 21, 2015
    Date of Patent: October 11, 2016
    Assignee: Far Eastern New Century Corporation
    Inventors: Roy Wu, Pang-Chin Liu, Yi-Hsuan Tang
  • Publication number: 20160185900
    Abstract: 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: Application
    Filed: August 21, 2015
    Publication date: June 30, 2016
    Inventors: Roy Wu, Pang-Chin Liu, Yi-Hsuan Tang
  • Publication number: 20150283429
    Abstract: 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: Application
    Filed: April 8, 2015
    Publication date: October 8, 2015
    Applicant: William Marsh Rice University
    Inventors: Sid Mullick, Chelsea Rodrigues, Matthew Lopez, Yize Zhao, Roy Wu, Gary Woods, Laurence Ray Simar, JR.
  • Patent number: 8936743
    Abstract: 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: Grant
    Filed: October 31, 2011
    Date of Patent: January 20, 2015
    Assignee: Far Eastern New Century Corporation
    Inventors: Chi-Wei Ciou, Li-Ling Chang, Roy Wu
  • Publication number: 20140018512
    Abstract: 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: Application
    Filed: May 30, 2013
    Publication date: January 16, 2014
    Applicant: FAR EASTERN NEW CENTURY CORPORATION
    Inventors: Roy Wu, Yi-Hsuan Tang, Hsin-Yi Chou
  • Patent number: 8575270
    Abstract: 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: Grant
    Filed: August 30, 2011
    Date of Patent: November 5, 2013
    Assignee: Far Eastern New Century Corporation
    Inventors: Chih-Ying Kuo, Chuan-Hao Hsu, Chi-Wei Ciou, Li-Ling Chang, Roy Wu
  • Publication number: 20120116020
    Abstract: 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: Application
    Filed: August 30, 2011
    Publication date: May 10, 2012
    Inventors: Chih-Ying KUO, Chuan-Hao Hsu, Chi-Wei Ciou, Li-Ling Chang, Roy Wu
  • Publication number: 20120104655
    Abstract: 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: Application
    Filed: October 31, 2011
    Publication date: May 3, 2012
    Inventors: Chi-Wei CIOU, Li-Ling Chang, Roy Wu
  • Patent number: 7906563
    Abstract: 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: Grant
    Filed: December 1, 2008
    Date of Patent: March 15, 2011
    Assignee: Far Eastern New Century Corporation
    Inventors: Ching-Ping Huang, Roy Wu, Ken-Yuan Chang
  • Publication number: 20100168344
    Abstract: 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: Application
    Filed: December 29, 2009
    Publication date: July 1, 2010
    Applicant: Far Eastern New Century Corporation
    Inventors: Roy Wu, Pang-Chin Liu, Shu-Chen Lee, Hsiang-Chin Tsai
  • Publication number: 20090170976
    Abstract: 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: Application
    Filed: December 1, 2008
    Publication date: July 2, 2009
    Inventors: Ching-Ping Huang, Roy Wu, Ken-Yuan Chang
  • Publication number: 20080177007
    Abstract: 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: Application
    Filed: January 17, 2008
    Publication date: July 24, 2008
    Inventors: Roy Wu, Johnson J. G. Wang
  • Publication number: 20080057237
    Abstract: 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: Application
    Filed: August 29, 2007
    Publication date: March 6, 2008
    Applicant: FAR EASTERN TEXTILE LTD.
    Inventors: Pang-Chin LIU, Chih-Heng WU, Chih-Wei CHU, Roy WU
  • Publication number: 20080058488
    Abstract: 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: Application
    Filed: August 29, 2007
    Publication date: March 6, 2008
    Applicant: FAR EASTERN TEXTILE LTD.
    Inventors: Pang-Chin LIU, Chih-Heng WU, Cheng-Hsiang CHUNG, Chih-Wei CHU, Roy WU
  • Publication number: 20070259195
    Abstract: 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: Application
    Filed: May 4, 2007
    Publication date: November 8, 2007
    Inventors: Ming-Tse Chou, Li-Ling Chang, Roy Wu