Patents by Inventor Yu-Chin Lee
Yu-Chin Lee 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: 8981014Abstract: The present invention provides a novel phosphorus-containing phenolic resin. When the phosphorus-containing phenolic resin is used as an epoxy resin curing agent, the cured product thereof has various excellent properties such as excellent moisture resistance, low permittivity, a low dissipation factor, and excellent adhesion in addition to improved flame retardation. Specifically, the phosphorus-containing phenolic resin of the invention is represented by formula (1). The invention also provides a method for manufacturing the novel phosphorus-containing phenolic resin, a phenolic resin composition including the phosphorus-containing phenolic resin, an epoxy resin curing agent including the phenolic resin composition, an epoxy resin composition including the epoxy resin curing agent and an epoxy resin, a cured product obtained by curing the epoxy resin composition, and a copper-clad laminated plate obtained by using the epoxy resin composition as a matrix resin.Type: GrantFiled: May 16, 2014Date of Patent: March 17, 2015Assignees: Meiwa Plastic Industries, Ltd., UFC CorporationInventors: Masato Takenouchi, Tadatoshi Fujinaga, Erina Kimura, Yu-Chin Lee, Jen-Hai Liao, Sung-Chen Lo
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Publication number: 20140378622Abstract: The present invention provides a novel phosphorus-containing phenolic resin. When the phosphorus-containing phenolic resin is used as an epoxy resin curing agent, the cured product thereof has various excellent properties such as excellent moisture resistance, low permittivity, a low dissipation factor, and excellent adhesion in addition to improved flame retardation. Specifically, the phosphorus-containing phenolic resin of the invention is represented by formula (1). The invention also provides a method for manufacturing the novel phosphorus-containing phenolic resin, a phenolic resin composition including the phosphorus-containing phenolic resin, an epoxy resin curing agent including the phenolic resin composition, an epoxy resin composition including the epoxy resin curing agent and an epoxy resin, a cured product obtained by curing the epoxy resin composition, and a copper-clad laminated plate obtained by using the epoxy resin composition as a matrix resin.Type: ApplicationFiled: May 16, 2014Publication date: December 25, 2014Applicants: MEIWA PLASTIC INDUSTRIES, LTD., UFC CORPORATIONInventors: Masato Takenouchi, Tadatoshi Fujinaga, Erina Kimura, Yu-Chin Lee, Jen-Hai Liao, Sung-Chen Lo
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Patent number: 8703986Abstract: Provided is a process for preparing 10-chloro-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO-C) compound, the process having steps of: reacting a liquid chlorinating agent and 9,10-dihydro-10-hydroxy-9-oxa 10-phosphaphenanthrene 10-oxide compound represented by formula (B) to form a mixture, the mixture comprises DOPO-C compound represented by formula (A) and an unreacted liquid chlorinating agent, separating the DOPO-C compound and the unreacted liquid chlorinating agent from the mixture to obtain the DOPO-C compound; wherein X1, X2, and X3 are each independently selected from the group consisting of hydrogen atom, hydroxyl group, cyano group, sulfonic acid group, sulfonate ester group represented by —SO3R1, halogen atom, alkoxy group represented by —OR2, acyclic hydrocarbon group having 1 to 8 carbon atoms, cyclic alkyl group having 3 to 8 carbon atoms, aryl group, heteroaryl group, and arylalkyl group, wherein R1 and R2 are each an acyclic hydrocarbon group having 1 to 8 carbon aType: GrantFiled: July 1, 2013Date of Patent: April 22, 2014Assignee: UFC CorporationInventors: Yu-Chin Lee, Jen-Hai Liao, Sung-Chen Lo, Chu-Chun Wu
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Patent number: 8362303Abstract: A process for producing an aromatic aldehyde compound has steps of converting alkyl-substituted or non-substituted benzene into a compound of formula I by halomethylation, and allowing the compound of formula I and alkyl aldehyde to react in presence of phase transfer catalyst at a reaction temperature under alkaline condition to obtain the aromatic aldehyde compound.Type: GrantFiled: April 12, 2011Date of Patent: January 29, 2013Assignee: UFC CorporationInventors: Yu-Chin Lee, Hsien-Yu Chang, Han-Hsu Chen, Yu-Sen Hou, Rong-Yi Liao
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Publication number: 20120264981Abstract: A process for producing an aromatic aldehyde compound has steps of converting alkyl-substituted or non-substituted benzene into a compound of formula I by halomethylation, and allowing the compound of formula I and alkyl aldehyde to react in presence of phase transfer catalyst at a reaction temperature under alkaline condition to obtain the aromatic aldehyde compound.Type: ApplicationFiled: April 12, 2011Publication date: October 18, 2012Applicant: UFC CorporationInventors: Yu-Chin Lee, Hsien-Yu Chang, Han-Hsu Chen, Yu-Sen Hou, Rong-Yi Liao
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Publication number: 20120264975Abstract: Provided is a phase transfer catalyst for producing an aromatic aldehyde compound, comprising a compound of formula I, wherein R1 is hydrogen, methyl, ethyl, isopropyl, isobutyl or tertbutyl; R4, R5 and R6 are independently selected from alkyl groups containing 1 to 6 carbon atoms; and X is fluorine, chlorine, bromine or iodine.Type: ApplicationFiled: April 14, 2011Publication date: October 18, 2012Applicant: UFC CorporationInventors: Yu-Chin Lee, Hsien-Yu Chang, Han-Hsu Chen, Yu-Sen Hou, Rong-Yi Liao
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Patent number: 8201034Abstract: A method for testing a memory device is disclosed. The method includes: respectively writing at least one test data into a plurality of storage blocks in the memory device such that a plurality of first time written test data are stored in the storage blocks; in a read with write back test mode, reading the first time written test data from the storage blocks in the memory device and writing the plurality of first time written test data into the storage blocks to generate a plurality of second time written test data; and in a compress test mode, reading the plurality of second time written test data from the storage blocks by a compress test operation and determining whether the memory device operates erroneously according to the plurality of second time written test data and the test data.Type: GrantFiled: August 10, 2007Date of Patent: June 12, 2012Assignee: Nanya Technology Corp.Inventor: Yu-Chin Lee
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Patent number: 7964750Abstract: A method for synthesizing 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or its derivatives has a step of introducing 6-chloro-6H-dibenz[c,e][1,2]oxaphosphorin or its derivative, an acid compound and water into a reacting chamber to form an organic layer having 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or its derivative and an aqueous layer. Because the acid compound is from an external source and has a catalyzing effect, employing the method can prevent side reaction from occurring and increase yield of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or its derivative. Furthermore, the method is a one-pot operation of hydrolysis, dehydration and cyclization, so the method does not require purification of intermediates. Therefore, the method is time- and cost-saving and requires less organic solvent, resulting in less pollution to the environment.Type: GrantFiled: August 5, 2009Date of Patent: June 21, 2011Assignee: UFC CorporationInventors: Ling Lu, Kai-Chiang Huang, Kuan-Chieh Tseng, Chung-Ning Fan, Yu-Cheng Lee, Tien-Wen Lo, Yu-Chin Lee
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Publication number: 20110034717Abstract: A method for synthesizing 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or its derivatives has a step of introducing 6-chloro-6H-dibenz[c,e][1,2]oxaphosphorin or its derivative, an acid compound and water into a reacting chamber to form an organic layer having 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or its derivative and an aqueous layer. Because the acid compound is from an external source and has a catalyzing effect, employing the method can prevent side reaction from occurring and increase yield of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or its derivative. Furthermore, the method is a one-pot operation of hydrolysis, dehydration and cyclization, so the method does not require purification of intermediates. Therefore, the method is time-and cost-saving and requires less organic solvent, resulting in less pollution to the environment.Type: ApplicationFiled: August 5, 2009Publication date: February 10, 2011Applicant: UFC CORPORATIONInventors: Ling Lu, Kai-Chiang Huang, Kuan-Chieh Tseng, Chung-Ning Fan, Yu-Cheng Lee, Tien-Wen Lo, Yu-Chin Lee
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Patent number: 7655805Abstract: A method for synthesizing benzotriazole comprises acts of: preparing a first solvent comprising 2-(2-hydroxy-5-methylphenyl) benzotriazole, a basic agent and molecular sieves and a second solvent comprising 3-chloro-2-alkyl propylene; mixing the solvents; and heating the solvents. This method requires only one reaction vessel and produces few by-products, therefore is simpler and cheaper to produce. Furthermore, the molecular sieves are cheaper than catalysts in conventional reactions and may be recycled, giving even greater economic benefits.Type: GrantFiled: April 24, 2008Date of Patent: February 2, 2010Assignee: UFC CorporationInventors: Ling Lu, Po-Hsuan Wei, Chung-Ning Fan, Yu-Cheng Lee, Hui-Ling Yang, Yu-Chin Lee
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Publication number: 20090270632Abstract: A method for synthesizing benzotriazole comprises acts of: preparing a first solvent comprising 2-(2-hydroxy-5-methylphenyl) benzotriazole, a basic agent and molecular sieves and a second solvent comprising 3-chloro-2-alkyl propylene; mixing the solvents; and heating the solvents. This method requires only one reaction vessel and produces few by-products, therefore is simpler and cheaper to produce. Furthermore, the molecular sieves are cheaper than catalysts in conventional reactions and may be recycled, giving even greater economic benefits.Type: ApplicationFiled: April 24, 2008Publication date: October 29, 2009Inventors: Ling Lu, Po-Hsuan Wei, Chung-Ning Fan, Yu-Cheng Lee, Hui-Ling Yang, Yu-Chin Lee
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Patent number: 7601864Abstract: A method for synthesizing 4,4-dihalogen-2-(dialkylamino)methylene-3-oxy-alkylbutyrate and its derivatives has acts of: (a) providing N,N-dialkylamino-alkyl-acrylate in a reaction vessel; (b) adding organic alkali, organic solvent and multiple molecular sieves into the reaction vessel; (c) mixing N,N-dialkylamino-alkyl-acrylate, the organic alkali, the organic solvent and the molecular sieves; and (d) adding 2,2-dihalogen-acetyl-chloride into the reaction vessel and allowing a synthetic reaction of 2,2-dihalogen-acetyl-chloride and N,N-dialkylamino-alkyl-acrylate to obtain 4,4-dihalogen-2-(dialkylamino)methylene-3-oxy-alkylbutyrate. The molecular sieves are able to remove water efficiently to prevent materials in the reaction vessel from undergoing side reactions or changing chemical properties. Furthermore, the molecular sieves are able to adsorb chloride to avoid polymerization reactions for improved yield.Type: GrantFiled: May 8, 2008Date of Patent: October 13, 2009Assignee: UFC CorporationInventors: Ling Lu, Shu-Cheng Liao, Ching-Hung Chen, Yu-Sen Hou, Kai-Chiang Huang, Yu-Chin Lee
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Publication number: 20090246077Abstract: A container assembly has a raw-material container and a product-collection container, which are heat resistant and pressure resistant and have graduations formed on a sidewall thereof and a joint protruding therefrom. The product-collection container is detachably mounted on the raw-material container and communicates with the raw-material container through the joint. Since the raw-material container has graduations, an amount of raw materials can be consistently added in each batch, therefore, conditions of sublimation such as pressure, temperature or the like do not require adjustment and may just be monitored to ensure maximum yield is attained. Therefore, a sublimation procedure is simple, saves time and decreases product costs. Since, the product-collection container has graduations, an amount of product can be observed easily by the graduations and the product is easily removed without removing impure byproducts. Therefore, purity of the product can be increased.Type: ApplicationFiled: March 31, 2008Publication date: October 1, 2009Applicant: UFC CORPORATIONInventors: Ling LU, Kai-Chiang HUANG, Kang-Wei HSUEH, Ching-Hung CHEN, Yu-Sen HOU, Yu-Chin LEE
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Publication number: 20080215938Abstract: A method for testing a memory device is disclosed. The method includes: respectively writing at least one test data into a plurality of storage blocks in the memory device such that a plurality of first time written test data are stored in the storage blocks; in a read with write back test mode, reading the first time written test data from the storage blocks in the memory device and writing the plurality of first time written test data into the storage blocks to generate a plurality of second time written test data; and in a compress test mode, reading the plurality of second time written test data from the storage blocks by a compress test operation and determining whether the memory device operates erroneously according to the plurality of second time written test data and the test data.Type: ApplicationFiled: August 10, 2007Publication date: September 4, 2008Inventor: Yu-Chin Lee
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Patent number: D362142Type: GrantFiled: December 16, 1993Date of Patent: September 12, 1995Inventor: Yu-Chin Lee