Patents by Inventor Yu-Chin Lai

Yu-Chin Lai 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: 20240144717
    Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media to capture images. A method of processing image data includes determining a first region of interest (ROI) in an image. The first ROI is associated with a first object. The method can include determining one or more image characteristics of the first ROI. The method can further include determining whether to perform an upsampling process on image data in the first ROI based on the one or more image characteristics of the first ROI.
    Type: Application
    Filed: October 26, 2022
    Publication date: May 2, 2024
    Inventors: Wen-Chun FENG, Kai LIU, Su-Chin CHIU, Chung-Yan CHIH, Yu-Ren LAI
  • Publication number: 20230382066
    Abstract: A silicone hydrogel composition includes a first hydrophilic monomer, a siloxane compound, a first crosslinking monomer, a second hydrophilic monomer, and a second crosslinking monomer. The first hydrophilic monomer and the siloxane compound have an acrylate group or an acrylamide group and may also have a methacrylate group or a methacrylamide group. The first crosslinking monomer has a plurality of acrylate groups or acrylamide groups and may also have methacrylate groups or methacrylamide groups. The second hydrophilic monomer has a non-conjugated vinyl group. The second crosslinking monomer has a plurality of non-conjugated vinyl groups. A sum of the weights of the second hydrophilic monomer and the second crosslinking monomer is 40 to 100 parts by weight, relative to 100 parts by weight of the sum of the weights of the first hydrophilic monomer, the siloxane compound, and the first crosslinking monomer.
    Type: Application
    Filed: July 25, 2023
    Publication date: November 30, 2023
    Inventors: Yu-Chin LAI, Ting-Chun KUAN, Di-Yao HSU, Fang-Yu TSAI, Min-Tzung YEH
  • Patent number: 11760045
    Abstract: A silicone hydrogel composition includes a first hydrophilic monomer, a siloxane compound, a first crosslinking monomer, a second hydrophilic monomer, and a second crosslinking monomer. The first hydrophilic monomer and the siloxane compound have an acrylate group or an acrylamide group and may also have a methacrylate group or a methacrylamide group. The first crosslinking monomer has a plurality of acrylate groups or acrylamide groups and may also have methacrylate groups or methacrylamide groups. The second hydrophilic monomer has a non-conjugated vinyl group. The second crosslinking monomer has a plurality of non-conjugated vinyl groups. A sum of the weight of the second hydrophilic monomer and the weight of the second crosslinking monomer is 40 to 100 parts by weight, relative to 100 parts by weight of the sum of the weight of the first hydrophilic monomer, the weight of the siloxane compound, and the weight of the first crosslinking monomer.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: September 19, 2023
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Ting-Chun Kuan, Di-Yao Hsu, Fang-Yu Tsai, Min-Tzung Yeh
  • Patent number: 11198751
    Abstract: The present invention provides a water-soluble silicone macromer. The water-soluble silicone macromer has a general formula: E?(M1)x?(M2)y, wherein M1 is a repeating unit which is derived from a silicone containing monomer, M2 is a repeating unit which is derived from a first hydrophilic monomer, and E is an ethylenically unsaturated group. The amount of M1 is in a range of 30-60 wt % based on the total weight of the water-soluble silicone macromer, and the amount of M2 is in a range of 40-70 wt % based on the total weight of the water-soluble silicone macromer. A silicone hydrogel composition containing the water-soluble silicone macromer and a silicone hydrogel lens made of the silicone hydrogel composition are also provided herein.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: December 14, 2021
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Ting-Chun Kuan, Hsiang-Ho Kung, Min-Tzung Yeh, Ching-Wen Yang, Tsung-Kao Hsu
  • Patent number: 11046802
    Abstract: The present invention provides a silicone hydrogel composition. The silicone hydrogel composition includes a water-soluble silicone macromere, a hydrophilic monomer, a crosslinker, an initiator and an organic solvent. The water-soluble silicone macromere, the hydrophilic monomer, the crosslinker and the initiator is respectively in the amount of 50-80 wt %, 19-50 wt %, 0.1-1.5 wt % and 0.1-1 wt % based on the total weight of the silicone hydrogel composition.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: June 29, 2021
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Ting-Chun Kuan, Hsiang-Ho Kung, Min-Tzung Yeh, Ching-Wen Yang, Tsung-Kao Hsu
  • Patent number: 11034107
    Abstract: A surface-modified contact lens, having a surface contact angle hysteresis of less than 15°, includes a lens body and a first surface modification layer disposed on a surface of the lens body. The first surface modification layer comprises a first reactive hydrophilic polymer. The surface of the lens body has a first functional group or a second functional group, and the first reactive hydrophilic polymer has a third functional group or a fourth functional group. A first covalent cross-link bond is formed between the surface of the lens body and the first surface modification layer. The first covalent cross-link bond is formed by reacting the first functional group or the second functional group of the surface of the lens body with the third functional group or the fourth functional group of the first reactive hydrophilic polymer.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: June 15, 2021
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Ming-Nan Lin, Min-Tzung Yeh, Ya-Hsuan Liao
  • Patent number: 10918761
    Abstract: A solution for treating a contact lens and a contact lens packaging system are provided. The solution includes about 0.01 to about 1.0 parts by weight (pbw) of a polymer having phosphorylcholine groups, about 0.005 to about 0.05 pbw of a hydrophilic molecule, about 0.01 to about 1.0 pbw of an inorganic salt, and about 100 pbw of water. A number-average molecular weight of the polymer is about 4,000 to about 1,000,000 daltons. The polymer has a structure of formula (I): wherein, in formula (I), m is a positive integer, n is zero or a positive integer, and R is C2-C12 alkyl group, or C2-C12 hydroxyalkyl group. When n is a positive integer, m/n is greater than 1. Moreover, a number-average molecular weight of the hydrophilic molecule is about 10,000 to about 5,000,000 daltons. The hydrophilic molecule is hyaluronic acid (HA) or hyaluronate salt.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: February 16, 2021
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Min-Tzong Yeh, Han-Yi Chang, Ya-Hui Chang
  • Publication number: 20200377639
    Abstract: The present invention provides a water-soluble silicone macromer. The water-soluble silicone macromer has a general formula: E?(M1)x?(M2)y, wherein M1 is a repeating unit which is derived from a silicone containing monomer, M2 is a repeating unit which is derived from a first hydrophilic monomer, and E is an ethylenically unsaturated group. The amount of M1 is in a range of 30-60 wt % based on the total weight of the water-soluble silicone macromer, and the amount of M2 is in a range of 40-70 wt % based on the total weight of the water-soluble silicone macromer. A silicone hydrogel composition containing the water-soluble silicone macromer and a silicone hydrogel lens made of the silicone hydrogel composition are also provided herein.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Inventors: Yu-Chin LAI, Ting-Chun KUAN, Hsiang-Ho KUNG, Min-Tzung YEH, Ching-Wen YANG, Tsung-Kao HSU
  • Patent number: 10793659
    Abstract: The present invention provides a water-soluble silicone macromer. The water-soluble silicone macromer has a general formula: E-(M1)x-(M2)y, wherein M1 is a repeating unit which is derived from a silicone containing monomer, M2 is a repeating unit which is derived from a first hydrophilic monomer, and E is an ethylenically unsaturated group. The amount of M1 is in a range of 30-60 wt % based on the total weight of the water-soluble silicone macromer, and the amount of M2 is in a range of 40-70 wt % based on the total weight of the water-soluble silicone macromer. A silicone hydrogel composition containing the water-soluble silicone macromer and a silicone hydrogel lens made of the silicone hydrogel composition are also provided herein.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 6, 2020
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Ting-Chun Kuan, Hsiang-Ho Kung, Min-Tzung Yeh, Ching-Wen Yang, Tsung-Kao Hsu
  • Publication number: 20200291160
    Abstract: The present invention provides a silicone hydrogel composition. The silicone hydrogel composition includes a water-soluble silicone macromere, a hydrophilic monomer, a crosslinker, an initiator and an organic solvent. The water-soluble silicone macromere, the hydrophilic monomer, the crosslinker and the initiator is respectively in the amount of 50-80 wt %, 19-50 wt %, 0.1-1.5 wt % and 0.1-1 wt % based on the total weight of the silicone hydrogel composition.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Inventors: Yu-Chin LAI, Ting-Chun KUAN, Hsiang-Ho KUNG, Min-Tzung YEH, Ching-Wen YANG, Tsung-Kao HSU
  • Publication number: 20200172647
    Abstract: A silicone hydrogel composition includes a first hydrophilic monomer, a siloxane compound, a first crosslinking monomer, a second hydrophilic monomer, and a second crosslinking monomer. The first hydrophilic monomer and the siloxane compound have an acrylate group or an acrylamide group and may also have a methacrylate group or a methacrylamide group. The first crosslinking monomer has a plurality of acrylate groups or acrylamide groups and may also have methacrylate groups or methacrylamide groups. The second hydrophilic monomer has a non-conjugated vinyl group. The second crosslinking monomer has a plurality of non-conjugated vinyl groups. A sum of the weight of the second hydrophilic monomer and the weight of the second crosslinking monomer is 40 to 100 parts by weight, relative to 100 parts by weight of the sum of the weight of the first hydrophilic monomer, the weight of the siloxane compound, and the weight of the first crosslinking monomer.
    Type: Application
    Filed: June 27, 2019
    Publication date: June 4, 2020
    Inventors: Yu-Chin LAI, Ting-Chun KUAN, Di-Yao HSU, Fang-Yu TSAI, Min-Tzung YEH
  • Publication number: 20190009482
    Abstract: A surface-modified contact lens, having a surface contact angle hysteresis of less than 15°, includes a lens body and a first surface modification layer disposed on a surface of the lens body. The first surface modification layer comprises a first reactive hydrophilic polymer. The surface of the lens body has a first functional group or a second functional group, and the first reactive hydrophilic polymer has a third functional group or a fourth functional group. A first covalent cross-link bond is formed between the surface of the lens body and the first surface modification layer. The first covalent cross-link bond is formed by reacting the first functional group or the second functional group of the surface of the lens body with the third functional group or the fourth functional group of the first reactive hydrophilic polymer.
    Type: Application
    Filed: February 14, 2018
    Publication date: January 10, 2019
    Inventors: Yu-Chin LAI, Ming-Nan LIN, Min-Tzung YEH, Ya-Hsuan LIAO
  • Publication number: 20180340036
    Abstract: The present invention provides a water-soluble silicone macromer. The water-soluble silicone macromer has a general formula: E-(M1)x-(M2)y, wherein M1 is a repeating unit which is derived from a silicone containing monomer, M2 is a repeating unit which is derived from a first hydrophilic monomer, and E is an ethylenically unsaturated group. The amount of M1 is in a range of 30-60 wt % based on the total weight of the water-soluble silicone macromer, and the amount of M2 is in a range of 40-70 wt % based on the total weight of the water-soluble silicone macromer. A silicone hydrogel composition containing the water-soluble silicone macromer and a silicone hydrogel lens made of the silicone hydrogel composition are also provided herein.
    Type: Application
    Filed: February 5, 2018
    Publication date: November 29, 2018
    Inventors: Yu-Chin LAI, Ting-Chun KUAN, Hsiang-Ho KUNG, Min-Tzung YEH, Ching-Wen YANG, Tsung-Kao HSU
  • Patent number: 9925293
    Abstract: A solution for treating contact lens is provided. The solution includes about 0.01-1.0 parts by weight (pbw) of a polymer having phosphorylcholine groups, about 0.01-1 pbw of an inorganic salt, and about 100 pbw of water. The polymer has a number-average molecular weight of about 4,000 to about 1,000,000 daltons and has a structure of formula (I): wherein, in formula (I), m is a positive integer, n is zero or a positive integer, and R is C2-C12 alkyl group or C2-C12 hydroxyalkyl group. When n is a positive integer, m/n is greater than 1.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: March 27, 2018
    Assignee: PEGAVISION CORPORATION
    Inventors: Han-Yi Chang, Ya-Hsuan Liao, Shu-Chen Lu, Ya-Hui Chang, Yu-Chin Lai
  • Publication number: 20170368222
    Abstract: A solution for treating a contact lens and a contact lens packaging system are provided. The solution includes about 0.01 to about 1.0 parts by weight (pbw) of a polymer having phosphorylcholine groups, about 0.005 to about 0.05 pbw of a hydrophilic molecule, about 0.01 to about 1.0 pbw of an inorganic salt, and about 100 pbw of water. A number-average molecular weight of the polymer is about 4,000 to about 1,000,000 daltons. The polymer has a structure of formula (I): wherein, in formula (I), m is a positive integer, n is zero or a positive integer, and R is C2-C12 alkyl group, or C2-C12 hydroxyalkyl group. When n is a positive integer, m/n is greater than 1. Moreover, a number-average molecular weight of the hydrophilic molecule is about 10,000 to about 5,000,000 daltons. The hydrophilic molecule is hyaluronic acid (HA) or hyaluronate salt.
    Type: Application
    Filed: November 4, 2016
    Publication date: December 28, 2017
    Inventors: Yu-Chin LAI, Min-Tzong YEH, Han-Yi CHANG, Ya-Hui CHANG
  • Publication number: 20170368221
    Abstract: A solution for treating contact lens is provided. The solution includes about 0.01-1.0 parts by weight (pbw) of a polymer having phosphorylcholine groups, about 0.01-1 pbw of an inorganic salt, and about 100 pbw of water. The polymer has a number-average molecular weight of about 4,000 to about 1,000,000 daltons and has a structure of formula (I): wherein, in formula (I), m is a positive integer, n is zero or a positive integer, and R is C2-C12 alkyl group or C2-C12 hydroxyalkyl group. When n is a positive integer, m/n is greater than 1.
    Type: Application
    Filed: September 5, 2016
    Publication date: December 28, 2017
    Inventors: Han-Yi CHANG, Ya-Hsuan LIAO, Shu-Chen LU, Ya-Hui CHANG, Yu-Chin LAI
  • Patent number: 9482788
    Abstract: The present disclosure provides a UV-blocking silicone hydrogel composition including a hydrophilic silicone macromer, a UV-blocking monomer, a first hydrophilic monomer, a crosslinker and a polymerization initiator. The hydrophilic silicone macromer has a general formula: V-L-S-(L?-V?)x, wherein V and V? are independently ethylenically-based polymerizable groups, L and L? are independently a covalent bond or a linkage group, S is a siloxane group having a chemical structure such as and x is 0 or 1. A silicone contact lens containing the UV-blocking silicone hydrogel composition is also provided herein.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: November 1, 2016
    Assignee: PEGAVISION CORPORATION
    Inventors: Yu-Chin Lai, Min-Tzung Yeh, Han-Yi Chang, Heng-Yi Li, Hung-Ju Chang, Che-Cheng Wu
  • Publication number: 20160161638
    Abstract: The present disclosure provides a UV-blocking silicone hydrogel composition including a hydrophilic silicone macromer, a UV-blocking monomer, a first hydrophilic monomer, a crosslinker and a polymerization initiator. The hydrophilic silicone macromer has a general formula: V-L-S-(L?-V?)x, wherein V and V? are independently ethylenically-based polymerizable groups, L and L? are independently a covalent bond or a linkage group, S is a siloxane group having a chemical structure such as and x is 0 or 1. A silicone contact lens containing the UV-blocking silicone hydrogel composition is also provided herein.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 9, 2016
    Inventors: Yu-Chin LAI, Min-Tzung YEH, Han-Yi CHANG, Heng-Yi LI, Hung-Ju CHANG, Che-Cheng WU
  • Patent number: 9133221
    Abstract: A method for manufacturing a hydrophilic silicone macromer is provided. A hydrosilylation between a Si—H bond of a polysiloxane and a C?C bond of a hydrophilic mononmer is performed by using a rhodium-containing catalyst to form the polysiloxane having a hydrophilic side chain having an amide group or a phosphoryl choline group. After performing an end-capping reaction, the hydrophilic silicone macromer is formed.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: September 15, 2015
    Assignee: PEGAVISION CORPORATION
    Inventors: Wei-Jia Ting, Heng-Yi Li, Yu-Chin Lai, Han-Yi Chang
  • Patent number: 9056879
    Abstract: A method for manufacturing a hydrophilic silicone prepolymer is disclosed. The method comprises ring-opening polymerization (ROP) of cyclosiloxanes, hydrosilylation of polysiloxanes, copolymerization, and end-capping reaction. After the above processes, the hydrophilic silicone prepolymer can be obtained.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: June 16, 2015
    Assignee: PEGAVISION CORPORATION
    Inventors: Heng-Yi Li, Wei-Jia Ting, Yu-Chin Lai, Han-Yi Chang