The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2019
Filed:
Nov. 07, 2014
Hitachi Metals, Ltd., Tokyo, JP;
Takayuki Tsuji, Kitaibaraki, JP;
Hiromitsu Kuroda, Hitachi, JP;
Tetsuya Tokumitsu, Hitachi, JP;
Takamitsu Kimura, Hitachi, JP;
Yosuke Shiba, Hitachi, JP;
Hiroshi Matsuzaki, Hitachi, JP;
Yuichi Komuro, Hitachi, JP;
Shingo Amamiya, Hitachi, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
An electrical discharge machining electrode wire includes a core including a copper or a copper alloy, and a covering layer covering a periphery of the core and including a zinc. The covering layer includes an inner layer including a γ-phase of copper-zinc based alloy and covering the periphery of the core, and an outer layer including an ε-phase of copper-zinc based alloy and covering a periphery of the inner layer. An x-ray diffraction intensity of (0001) of the ε-phase is more than twice an x-ray diffraction intensity of (332) of the γ-phase.