Patents by Inventor Hideyuki Tsunemori
Hideyuki Tsunemori 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: 11936103Abstract: Provided is a conductive film for antennas, in which a conducting film and a substrate made of a polycarbonate resin material containing a polycarbonate resin are laminated, and the polycarbonate resin contains, as main constituent units, a unit (A) represented by the following formula (1) and/or a unit (B) represented by the following formula (2). The conductive film for antennas has low dielectric characteristics and bendability, can form an antenna with a low transmission loss, and has excellent adhesion to the conducting film. (In the formula (1), R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms or a halogen atom, and R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a halogen atom.Type: GrantFiled: October 6, 2020Date of Patent: March 19, 2024Assignee: TEIJIN LIMITEDInventors: Hideyuki Tsunemori, Hiroshi Okamoto, Tomoya Nakanishi
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Publication number: 20230006341Abstract: Provided is a conductive film for antennas, in which a conducting film and a substrate made of a polycarbonate resin material containing a polycarbonate resin are laminated, and the polycarbonate resin contains, as main constituent units, a unit (A) represented by the following formula (1) and/or a unit (B) represented by the following formula (2). The conductive film for antennas has low dielectric characteristics and bendability, can form an antenna with a low transmission loss, and has excellent adhesion to the conducting film. (In the formula (1), R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms or a halogen atom, and R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a halogen atom.Type: ApplicationFiled: October 6, 2020Publication date: January 5, 2023Applicant: TEIJIN LIMITEDInventors: Hideyuki TSUNEMORI, Hiroshi OKAMOTO, Tomoya NAKANISHI
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Patent number: 11198759Abstract: The present invention provides a polycarbonate copolymer having low specific gravity and high surface hardness.Type: GrantFiled: June 20, 2018Date of Patent: December 14, 2021Assignee: TEIJIN LIMITEDInventors: Hideyuki Tsunemori, Kenta Imazato, Katsuhiro Yamanaka
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Publication number: 20210047463Abstract: A polycarbonate resin containing a structural unit originating from a dihydroxy compound represented by formula (1), having a boric-acid content of 100 ppm or lower and/or a tertiary-amine content of 1000 ppm by weight or lower, and having a terminal phenyl group originating from a diester carbonate represented by formula (2), wherein the concentration of the terminal phenyl group is equal to or greater than 30 ?eq/g. In formula (1), R1, R2, R3, and R4 each independently represent a hydrogen atom, a C1-C10 alkyl group, a C1-C10 alkoxy group, a C3-C20 cycloalkyl group, a C6-C20 cycloalkoxy group, a C6-C10 aryl group, a C7-C20 aralkyl group, a C6-C10 aryloxy group, a C7-C20 aralkyloxy group, or a halogen atom, and the cyclobutane ring indicates a cis-trans isomer mixture, a cis isomer alone, or a trans isomer alone. In formula (2), R5 and R6 each independently represent a substituted or non-substituted aromatic group.Type: ApplicationFiled: February 22, 2019Publication date: February 18, 2021Applicant: TEIJIN LIMITEDInventors: Hideyuki TSUNEMORI, Kenta IMAZATO, Takeshi FURUNO, Katsuhiro YAMANAKA
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Publication number: 20200283571Abstract: The present invention provides a polycarbonate copolymer having low specific gravity and high surface hardness.Type: ApplicationFiled: June 20, 2018Publication date: September 10, 2020Applicant: TeiJin LimitedInventors: Hideyuki TSUNEMORI, Kenta IMAZATO, Katsuhiro YAMANAKA
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Publication number: 20190390006Abstract: The purpose of the present invention is to provide a polycarbonate resin which has excellent scratch resistance, shock resistance, thermal resistance, and amine resistance. The present invention is a polycarbonate copolymer comprising, as main structural units: (A) a structural unit (A) represented by formula (1) [formula 1] (in formula (1), R1 and R2 are each independently a hydrogen atom, a hydrocarbon group having 1 to 9 carbon atoms which may include an aromatic group, or a halogen atom); (B) a structural unit (B) represented by formula (2) [formula 2] (in formula (2), R3 and R4 are each independently an alkyl group having 1 to 6 carbon atoms or a halogen atom.Type: ApplicationFiled: December 22, 2017Publication date: December 26, 2019Applicant: Teijin LimitedInventors: Hideyuki TSUNEMORI, Katsuhiro YAMANAKA
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Patent number: 10494522Abstract: A polycarbonate copolymer or copolymerized polycarbonate blend having excellent amine resistance, which has, as main constituent units, (A) constituent units each represented by the following formula (1): wherein, in the formula (1), each of R1 and R2 is independently a hydrogen atom, a hydrocarbon group having 1 to 9 carbon atoms and optionally containing an aromatic group, or a halogen atom, (B) constituent units each represented by the following formula (2): wherein, in the formula (2), each of R3 and R4 is independently an alkyl group having 1 to 6 carbon atoms or a halogen atom, and X is a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkylidene group, a sulfur atom, or an oxygen atom, and (C) constituent units each represented by the following formula (3): wherein, in the formula (3), W represents a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkylidene group, a sulfur atom, or an oxygenType: GrantFiled: October 24, 2016Date of Patent: December 3, 2019Assignee: TEIJIN LIMITEDInventors: Hideyuki Tsunemori, Katsuhiro Yamanaka
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Publication number: 20180312688Abstract: A polycarbonate copolymer or copolymerized polycarbonate blend having excellent amine resistance, which has, as main constituent units, (A) constituent units each represented by the following formula (1): wherein, in the formula (1), each of R1 and R2 is independently a hydrogen atom, a hydrocarbon group having 1 to 9 carbon atoms and optionally containing an aromatic group, or a halogen atom, (B) constituent units each represented by the following formula (2): wherein, in the formula (2), each of R3 and R4 is independently an alkyl group having 1 to 6 carbon atoms or a halogen atom, and X is a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkylidene group, a sulfur atom, or an oxygen atom, and (C) constituent units each represented by the following formula (3): wherein, in the formula (3), W represents a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkylidene group, a sulfur atom, or an oxygenType: ApplicationFiled: October 24, 2016Publication date: November 1, 2018Applicant: TEIJIN LIMITEDInventors: Hideyuki TSUNEMORI, Katsuhiro YAMANAKA
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Publication number: 20100165490Abstract: It is an object of the present invention to provide a lens having small birefringence, large refraction and excellent transparency and heat resistance and an optical unit including the lens. The present invention is a lens obtained from a polycarbonate copolymer (I) which is composed of a unit (A) represented by the following formula: (R1 to R4 are each independently a hydrogen atom, hydrocarbon group having 1 to 9 carbon atoms or halogen atom) and a unit (B) represented by the following formula: (plurality of R5 and R6 are each independently a hydrogen atom or the like, and R7 and R8 are each independently a hydrogen atom or alkyl group having 1 to 9 carbon atoms, with the proviso that the total number of carbon atoms of R7 and R8 is 9 or 10), the content of the unit (A) being 50 to 80 mol % of the total of all the units, and an optical unit including the lens.Type: ApplicationFiled: August 25, 2008Publication date: July 1, 2010Applicant: TEIJIN CHEMICALS LTD.Inventor: Hideyuki Tsunemori
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Publication number: 20070243488Abstract: Provided is a resin composition that gives a molded article excellent in hardness and abrasion resistance and that is suitable for a photosensitive layer of an electrophotographic photoreceptor. This invention provides a resin composition containing an aromatic polycarbonate resin containing 90 to 100 mol% of a recurring unit from 1,1-bis(4-hydroxyphenyl)cyclohexane and a polyphenylene resin and also provides an electrophotographic photoreceptor using the above resin composition as a binder for a photosensitive layer.Type: ApplicationFiled: June 4, 2007Publication date: October 18, 2007Inventor: Hideyuki Tsunemori
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Patent number: 7205375Abstract: An optical disk substrate and a light guide plate which are formed from a resin composition comprising 0.1 to 20 parts by weight of compound represented by the following formula (I): based on 100 parts by weight of polycarbonate resin. There can be provided an optical disk substrate formed from the resin composition of the present invention, particularly an optical disk substrate which allows the shape of a stamper to be transferred thereon with high precision and hardly undergoes warpage caused by environmental changes as a high density recording medium, and a light guide plate which has little uneven brightness and hardly undergoes warpage.Type: GrantFiled: April 8, 2003Date of Patent: April 17, 2007Assignee: Teijin Chemicals, Ltd.Inventors: Shintaro Nishida, Kuniyuki Hayashi, Hideyuki Tsunemori
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Publication number: 20050106350Abstract: An optical disk substrate and a light guide plate which are formed from a resin composition comprising 0.1 to 20 parts by weight of compound represented by the following formula (I): based on 100 parts by weight of polycarbonate resin. There can be provided an optical disk substrate formed from the resin composition of the present invention, particularly an optical disk substrate which allows the shape of a stamper to be transferred thereon with high precision and hardly undergoes warpage caused by environmental changes as a high density recording medium, and a light guide plate which has little uneven brightness and hardly undergoes warpage.Type: ApplicationFiled: April 8, 2003Publication date: May 19, 2005Applicant: Teijin Chemicals, Ltd.Inventors: Shintaro Nishida, Kuniyuki Hayashi, Hideyuki Tsunemori