Patents by Inventor Katsuro Tsukamoto
Katsuro Tsukamoto 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: 20230303816Abstract: Provided are a mixed water-based dispersion of polyimide-fluororesin-polar crystal particulates with excellent handleability (e.g., safety, environmental burden, equipment cost) as well as excellent adhesion performance and heat resistance performance without the use of an organic solvent; a method of producing the same; and a new method of coating. A mixed aqueous dispersion of polyimide-fluororesin-polar crystal particulates according to the present invention comprises a polyimide, fluororesin, polar crystal particulates, and water.Type: ApplicationFiled: March 28, 2023Publication date: September 28, 2023Applicant: JAPAN MATEX CO., LTD.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Patent number: 11603439Abstract: A prepreg according to the invention comprises: a raw yarn treated by a sizing agent; a thermoplastic resin material; and a thermosetting resin material; wherein the thermoplastic resin material coats at least a part of an outer peripheral surface of the raw yarn, wherein the thermosetting resin material coats at least a part of an outer peripheral surface of the thermoplastic resin material, or wherein the thermosetting resin material coats at least a part of the outer peripheral surface of the raw yarn, wherein the thermoplastic resin material coats at least a part of an outer peripheral surface of the thermosetting resin material, and wherein the thermosetting resin material is polymerized by heating.Type: GrantFiled: February 20, 2020Date of Patent: March 14, 2023Assignee: JAPAN MATEX CO., LTD.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Patent number: 11555260Abstract: An apparatus for manufacturing open carbon fiber superfine yarn comprises a yarn feeding part for feeding a carbon fiber bundle; a tank for storing water for opening carbon fiber to immerse the carbon fiber bundle in the water for opening carbon fiber; a first drying part for drying the open carbon fiber bundle formed by the immersion in the water for opening carbon fiber; an application part for applying a catalyst to the dried open carbon fiber bundle; a second drying part for drying the catalyst-applied open carbon fiber bundle to obtain open carbon fiber resin tape; a slitting part for slitting the open carbon fiber resin tape longitudinally; and a twisting part for twisting a plurality of the open carbon fiber resin tapes slit by the slitting part to form open carbon fiber superfine yarn.Type: GrantFiled: June 8, 2021Date of Patent: January 17, 2023Assignee: Japan Matex Co. Ltd.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Publication number: 20220403559Abstract: The purpose of the instant invention is to provide a superfine carbon fiber thread with excellent bending strength and repeated bending. To achieve this purpose, (1) a desired composite thread is produced by opening open carbon fibers, slitting the opened fibers, twisting the slit fibers and forming a composite with a composite thread; and (2) a composite thread is produced by performing a lamination process with a film (film of composite materials) while performing a fiber-opening process, and then slitting, twisting and heating the tread for stress relief.Type: ApplicationFiled: June 1, 2022Publication date: December 22, 2022Applicant: JAPAN MATEX CO., LTD.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Publication number: 20210324192Abstract: Provided are a mixed water-based dispersion of polyimide-fluororesin-polar crystal particulates with excellent handleability (e.g. safety, environmental burden, equipment cost) as well as excellent adhesion performance and heat resistance performance without the use of an organic solvent, and a method of producing the same, and a new method of coating. A mixed aqueous dispersion of polyimide-fluororesin-polar crystal particulates according to the present invention comprises a polyimide, fluororesin, polar crystal particulates, and water.Type: ApplicationFiled: December 22, 2020Publication date: October 21, 2021Applicant: JAPAN MATEX CO., LTD.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Publication number: 20210301427Abstract: The present invention relates to twisted yarn obtained by twisting a plurality of carbon fiber resins which are slit from a carbon fiber resin tape in which adhesive, alumina sol, and potassium persulfate permeate between a plurality of the carbon fibers spread flatly. An open yarn is obtained by S-twisting and Z-twisting covering yarn around the periphery of the twisted yarn.Type: ApplicationFiled: June 10, 2021Publication date: September 30, 2021Applicant: JAPAN MATEX CO., LTDInventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Patent number: 11131041Abstract: An apparatus for manufacturing open carbon fiber superfine yarn comprises a yarn feeding part for feeding a carbon fiber bundle; a tank for storing water for opening carbon fiber to immerse the carbon fiber bundle in the water for opening carbon fiber; a first drying part for drying the open carbon fiber bundle formed by the immersion in the water for opening carbon fiber; an application part for applying a catalyst to the dried open carbon fiber bundle; a second drying part for drying the catalyst-applied open carbon fiber bundle to obtain open carbon fiber resin tape; a slitting part for slitting the open carbon fiber resin tape longitudinally; and a twisting part for twisting a plurality of the open carbon fiber resin tapes slit by the slitting part to form open carbon fiber superfine yarn.Type: GrantFiled: December 7, 2018Date of Patent: September 28, 2021Assignee: Japan Matex Co. Ltd.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Publication number: 20210292935Abstract: An apparatus for manufacturing open carbon fiber superfine yarn comprises a yarn feeding part for feeding a carbon fiber bundle; a tank for storing water for opening carbon fiber to immerse the carbon fiber bundle in the water for opening carbon fiber; a first drying part for drying the open carbon fiber bundle formed by the immersion in the water for opening carbon fiber; an application part for applying a catalyst to the dried open carbon fiber bundle; a second drying part for drying the catalyst-applied open carbon fiber bundle to obtain open carbon fiber resin tape; a slitting part for slitting the open carbon fiber resin tape longitudinally; and a twisting part for twisting a plurality of the open carbon fiber resin tapes slit by the slitting part to form open carbon fiber superfine yarn.Type: ApplicationFiled: June 8, 2021Publication date: September 23, 2021Applicant: Japan Matex Co. Ltd.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Patent number: 11060211Abstract: The present invention relates to twisted yarn obtained by twisting a plurality of carbon fiber resins which are slit from a carbon fiber resin tape in which adhesive, alumina sol, and potassium persulfate permeate between a plurality of the carbon fibers spread flatly. An open yarn is obtained by S-twisting and Z-twisting covering yarn around the periphery of the twisted yarn. A carbon fiber covered twisted yarn is obtained by winding the twisted yarn around the periphery of a core material.Type: GrantFiled: July 8, 2020Date of Patent: July 13, 2021Assignee: JAPAN MATEX CO., LTDInventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Patent number: 10844523Abstract: The present invention relates to twisted yarn (P) obtained by twisting a plurality of carbon fiber resins which are slit from a carbon fiber resin tape (F2), open yarn obtained by S-twisting and Z-twisting covering yarn (C) around the periphery of the twisted yarn (P), carbon fiber covered twisted yarn obtained by winding the twisted yarn around the periphery of a core material, and methods for manufacturing thereof.Type: GrantFiled: May 31, 2017Date of Patent: November 24, 2020Assignee: JAPAN MATEX CO., LTDInventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Publication number: 20200347526Abstract: The present invention relates to twisted yarn obtained by twisting a plurality of carbon fiber resins which are slit from a carbon fiber resin tape in which adhesive, alumina sol, and potassium persulfate permeate between a plurality of the carbon fibers spread flatly. An open yarn is obtained by S-twisting and Z-twisting covering yarn around the periphery of the twisted yarn. A carbon fiber covered twisted yarn is obtained by winding the twisted yarn around the periphery of a core material.Type: ApplicationFiled: July 8, 2020Publication date: November 5, 2020Applicant: JAPAN MATEX CO., LTDInventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Publication number: 20200270412Abstract: A prepreg according to the invention comprises: a raw yarn treated by a sizing agent; a thermoplastic resin material; and a thermosetting resin material; wherein the thermoplastic resin material coats at least a part of an outer peripheral surface of the raw yarn, wherein the thermosetting resin material coats at least a part of an outer peripheral surface of the thermoplastic resin material, or wherein the thermosetting resin material coats at least a part of the outer peripheral surface of the raw yarn, wherein the thermoplastic resin material coats at least a part of an outer peripheral surface of the thermosetting resin material, and wherein the thermosetting resin material is polymerized by heating.Type: ApplicationFiled: February 20, 2020Publication date: August 27, 2020Applicant: JAPAN MATEX CO., LTD.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Patent number: 10682668Abstract: The present invention provides a method of manufacturing a high-strength carbon fiber resin tape and the high-strength carbon fiber resin tape that can be widely applied for reinforcement of PVC pipe, PP pipe, or the like. The high-strength carbon fiber resin tape according to the present invention comprises a base material including a binder, metal oxide sol, and potassium persulfate between acrylic carbon fibers; an adhesive material having one or more physical characteristics of heat resistance, cold resistance, or high-strength applied on one surface of the base material; and an ultraviolet protection coating applied on the other surface of the base material.Type: GrantFiled: August 21, 2017Date of Patent: June 16, 2020Assignee: Japan Matex Co., Ltd.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Publication number: 20190233984Abstract: An apparatus for manufacturing open carbon fiber superfine yarn comprises a yarn feeding part for feeding a carbon fiber bundle; a tank for storing water for opening carbon fiber to immerse the carbon fiber bundle in the water for opening carbon fiber; a first drying part for drying the open carbon fiber bundle formed by the immersion in the water for opening carbon fiber; an application part for applying a catalyst to the dried open carbon fiber bundle; a second drying part for drying the catalyst-applied open carbon fiber bundle to obtain open carbon fiber resin tape; a slitting part for slitting the open carbon fiber resin tape longitudinally; and a twisting part for twisting a plurality of the open carbon fiber resin tapes slit by the slitting part to form open carbon fiber superfine yarn.Type: ApplicationFiled: December 7, 2018Publication date: August 1, 2019Applicant: Japan Matex Co. Ltd.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Publication number: 20190169770Abstract: The present invention relates to twisted yarn (P) obtained by twisting a plurality of carbon fiber resins which are slit from a carbon fiber resin tape (F2), open yarn obtained by S-twisting and Z-twisting covering yarn (C) around the periphery of the twisted yarn (P), carbon fiber covered twisted yarn obtained by winding the twisted yarn around the periphery of a core material, and methods for manufacturing thereof.Type: ApplicationFiled: May 31, 2017Publication date: June 6, 2019Applicant: JAPAN MATEX CO., LTDInventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Patent number: 10294384Abstract: The present invention aims to provide a fluororesin-aluminum oxide mixed dispersion wherein both fluororesin particle and aluminum oxide particle uniformly float and disperse in an aqueous solvent. The fluororesin-aluminum oxide mixed dispersion is obtained by mixing aqueous dispersion of fluororesin particle and aluminum oxide particle sol, wherein both the fluororesin particle and the aluminum oxide particle float and disperse, and wherein the dispersion state is stably maintained for three days or more. A solid product obtained by evaporation and scattering of the solvent from the above-described fluororesin-aluminum oxide mixed dispersion has a heat resistance of not less than 330° C.Type: GrantFiled: June 12, 2017Date of Patent: May 21, 2019Assignees: JAPAN MATEX CO., LTD., Kawaken Fine Chemicals Co., Ltd.Inventors: Katsuro Tsukamoto, Yuzo Nakamura, Yuhi Hosoi, Yosuke Kondo, Naofumi Nagai, Fujio Mizukami
-
Publication number: 20180163073Abstract: The present invention aims to provide a fluororesin-aluminum oxide mixed dispersion wherein both fluororesin particle and aluminum oxide particle uniformly float and disperse in an aqueous solvent. The fluororesin-aluminum oxide mixed dispersion is obtained by mixing aqueous dispersion of fluororesin particle and aluminum oxide particle sol, wherein both the fluororesin particle and the aluminum oxide particle float and disperse, and wherein the dispersion state is stably maintained for three days or more. A solid product obtained by evaporation and scattering of the solvent from the above-described fluororesin-aluminum oxide mixed dispersion has a heat resistance of not less than 330° C.Type: ApplicationFiled: June 12, 2017Publication date: June 14, 2018Applicants: JAPAN MATEX CO., LTD., Kawaken Fine Chemicals Co., Ltd.Inventors: Katsuro Tsukamoto, Yuzo Nakamura, Yuhi Hosoi, Yosuke Kondo, Naofumi Nagai, Fujio Mizukami
-
Publication number: 20180126693Abstract: The heat radiating material consists of a mixed graphite and sheet bodies. The mixed graphite has a uniform mixture of a foamed graphite and a filler. The foamed graphite consists of first and second foamed graphite having a particle size of 30-50 ?m and 200-250 ?m. The filler is one or more kinds of thermally conductive fillers selected from a group consisting of artificial graphite, boron nitride and milled pitch based carbon fiber. The first and second foamed graphite are 30-45 wt. % and 50-65 wt. % of the foamed graphite. The mixed foamed graphite is 80-95 wt. % of the entire mixed graphite. The density of the mixed graphite is 0.8-1.65 g/cm3. The mixed graphite and the sheet bodies are laminated. The heat radiating material has the thermal conductivity of 3-10 W/m·K in a thickness direction and 50-250 W/m·K in a plane direction.Type: ApplicationFiled: July 28, 2016Publication date: May 10, 2018Applicant: JAPAN MATEX CO., LTD.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto, Yuzo Nakamura
-
Publication number: 20180056325Abstract: The present invention provides a method of manufacturing a high-strength carbon fiber resin tape and the high-strength carbon fiber resin tape that can be widely applied for reinforcement of PVC pipe, PP pipe, or the like. The high-strength carbon fiber resin tape according to the present invention comprises a base material including a binder, metal oxide sol, and potassium persulfate between acrylic carbon fibers; an adhesive material having one or more physical characteristics of heat resistance, cold resistance, or high-strength applied on one surface of the base material; and an ultraviolet protection coating applied on the other surface of the base material.Type: ApplicationFiled: August 21, 2017Publication date: March 1, 2018Applicant: JAPAN MATEX CO., LTD.Inventors: Katsuro Tsukamoto, Hiroaki Tsukamoto
-
Publication number: 20170328550Abstract: Provided is a heat dissipation structure and an illumination device which are capable of dissipating heat readily and efficiently. A heat dissipation structure 1 configured to release heat from a heat source 100 is provided with a plurality of heat reception/dissipation members 10 which have expanded graphite layers containing expanded graphite and which are spaced apart from each other; and a connection member 20 configured to connect the heat reception/dissipation members 10 together. The heat reception/dissipation members 10 each have the expanded graphite layer as the outermost layer and are disposed such that the expanded graphite layers face each other.Type: ApplicationFiled: November 10, 2015Publication date: November 16, 2017Inventors: Takenobu HONGO, Katsuro TSUKAMOTO