# US 2014/0197157 A1 · Method of manufacturing electrodes for flat heat generator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197157 A1 - Document ID: US20140197157A1 - Status: Published application - Kind: A1 - Application number: 14/151,117 - Filed: 2014-01-09 - Published: 2014-07-17 - Earliest claimed: 2013-01-17 - Assignees: Tem-Tech Lab. Co., Ltd. - Applicants: Tem-Tech Lab. Co. Ltd. - Inventors: Mitsuyoshi AIZAWA; Kisaku NISHIGUCHI - Web page: https://patentgrep.com/patent/US20140197157A1 ## CPC - H05B 3/34: flexible, e.g. heating nets or webs - H05B 3/03: Electrodes - H05B 3/36: heating conductor embedded in insulating material - H05B 2203/011: Heaters using laterally extending conductive material as connecting means - H05B 2203/013: Heaters using resistive films or coatings - H05B 2203/016: Heaters using particular connecting means - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract A method of manufacturing electrodes for a flat heat generator is provided for creating electrodes in an arbitrary shape on an arbitrary site of an arbitrarily shaped flat heat generator, to allow a required portion to generate heat, and to allow a heat source to move. The method includes the steps of forming a negative film for ultraviolet exposure masking from a master which has a set of electrodes for the flat heat generator designed in an arbitrary shape and at an arbitrary site, forming a thin-film member including an uncured portion of epoxy film, by irradiating the thin-film member with ultraviolet rays through masking of the negative film, dissolving the uncured portion of epoxy resin with a developing solution to form the set of electrodes, and depositing a metal on the set of electrodes through an ionization reaction within an electrolytic solution bath to from an electrodes. ## Claims ### Claim 1 A method of manufacturing an electrode for a flat heat generator configured to generate heat by an electric action, comprising: a first step of forming a thin-film member coated with an insulating film for said flat heat generator by printing a thin film of epoxy resin on both sides of said flat heat generator; a second step of drying said thin-film member by heating the same; a third step of designing a set of electrodes for said flat heat generator at an arbitrary position and in an arbitrary shape to create a master, overlaying an imaging film on said master, and forming a negative film for ultraviolet exposure masking through exposure processing; a fourth step of overlaying said negative films on both sides of said thin-film member, and irradiating both sides of said thin-film member with ultraviolet rays to form a thin-film member which includes a cured portion of epoxy resin and an uncured portion of epoxy resin; a fifth step of forming the set of electrodes by immersing said thin-film member irradiated with ultraviolet rays in a developing solution for developing, and dissolving the uncured portion of epoxy resin to expose said flat heat generator; and a sixth step of connecting a metal plate serving as an anode and the developed thin-film member serving as a cathode and subjected to plating to a power source, and immersing said metal plate and said developed thin-film member in an electrolytic solution bath to deposit a metal on the set of electrodes exposed on said flat heat generator through an ionization reaction to form the electrodes. ### Claim 2 (depends on 1) A method according to claim 1, further comprising a seventh step of stabilizing said dried thin-film member by again thermally curing said cured epoxy resin at high temperature, after rinsing off the electrolytic solution attached to said thin-film member formed with said electrodes and drying said thin-film member. ### Claim 3 (depends on 2) A method according to claim 2, further comprising an eighth step of laminating said stabilized thin-film member with a polyethylene film as a protective material for reinforcement. ### Claim 4 (depends on 1) A method according to claim 1, wherein said electrolytic solution is a copper sulfate solution, and metal copper is deposited on the exposed set of electrodes of said flat heat generator. ### Claim 5 (depends on 1) A method according to claim 1, wherein said flat heat generator is a discoidal carbon fiber sheet. ### Claim 6 (depends on 1) A method according to claim 1, wherein said exposed set of electrodes of said flat heat generator is formed to be a peripheral electrode and a central electrode of said flat heat generator. ### Claim 7 (depends on 6) A method according to claim 6, wherein a power supply terminal is disposed on a part of said peripheral electrode and a part of said central electrode, respectively. ### Claim 8 (depends on 1) A flat heat generator comprising electrodes manufactured by a method according to claim 1.