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Hiroshi Okikawa

Hiroshi Okikawa, Hitachi JP

Patent application numberDescriptionPublished
20080314613Signal transmission cable and multi-wire cable - An insulating layer 12-25-2008
20090255710Solar cell lead wire and production method therefor and solar cell using same - A solar cell lead wire includes a strip-shaped conductive material formed by rolling a wire, and upper and lower melt solder-plated layers formed to be flat on upper and lower surfaces, respectively, of the strip-shaped conductive material by supplying melt solder thereto.10-15-2009
20090260689Solar cell lead wire, method of making the same, and solar cell - A solar cell lead wire includes a conducting material, and a molten solder plated layer formed on the conducting material. The conducting material includes a concave-convex conducting material that includes a concavity on top and under surfaces thereof, respectively, and a convexity on a side surface thereof, and that is formed by die processing a strip-shaped conducting material, and the molten solder plated layer comprises a flat surface formed by supplying a molten solder to the concavity of the concave-convex conducting material.10-22-2009
20100018748Solar cell lead wire and method of manufacturing the same - A solar cell lead wire includes a conductive material, and a solder plated layer on a periphery of the conductive material. The solder plated layer is formed flat by rolling. A method of manufacturing a solar cell lead wire includes feeding an elongate conductive material from a feed reel, the elongate conductive material including a rectangular conductor or a round conductor, soaking the conductive material in a molten solder in a molten solder plating bath, cooling the conductive material to have a plated wire with a solder plated layer formed on the conductive material, and winding the plated wire on a winding reel. The plated wire is formed flat by rolling after the solder plated layer of the plated wire is solidified by the cooling.01-28-2010
20100218981Solar cell lead, method of manufacturing the same, and solar cell using the same - A solar cell lead includes a strip plate conductive material that a surface thereof is coated with solder plating. The coated solder plating includes a concavo-convex portion on a surface thereof and a 0.2% proof stress of not more than 90 MPa by a tensile test. The coated solder plating includes a hot-dip solder plating layer formed by supplying a molten solder on the surface of the strip plate conductive material. A plating temperature is set to be not higher than a liquidus-line temperature of the used solder plus 120° C., and an oxide film on a surface of the hot-dip solder plating layer is set to be not more than 7 nm in thickness.09-02-2010
20100281686METHOD OF MANUFACTURING A WIRING MATERIAL - A wiring material is provided by electrically connecting a connecting terminal with two single line conductors arranged in parallel. The connecting terminal is provided with a tube-shaped section for storing two single line conductors, the two single line conductors are inserted into the tube-shaped section, resistance welding is performed by carrying electricity from the external of the tube-shaped section in a status where the tube-shaped section and the single line conductors are mutually brought into contact, and the connecting terminal is electrically connected with the two single line conductors.11-11-2010
20110220196LEAD WIRE FOR SOLAR CELL, MANUFACTURING METHOD AND STORAGE METHOD THEREOF, AND SOLAR CELL - Disclosed is a lead wire for a solar cell having excellent bondability with a solar cell. The solar cell lead wire (09-15-2011

Patent applications by Hiroshi Okikawa, Hitachi JP

Hiroshi Okikawa, Tokyo JP