Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Osamu Koga0
Satoshi Tanaka0
Ryuji Ueda0
Yusuke Onoda0
Shingo Akao0
Fusao Takagi0
Hiroshi Matsuzawa0
Date of Patent
March 3, 2009
Patent Application Number
10541904
Date Filed
January 16, 2004
Patent Primary Examiner
Patent abstract
A metal photoetching product comprising at least one large cavity of minor axis W1S, major axis W1L and depth D1 in a surface of the product, wherein one or more cavities are included inside at least one of the at least one large cavity, and a smallest hole among the cavities has minor axis of W2S, major axis W2L, and depth D2; and the product satisfies the following dimensions, D1+D2=plate thickness D, 0.02 mm≦D≦2 mm, 0.4×D<W1S<D, and 0.2×D<W2S<0.8×D.
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