Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazuo Kusuda0
Hiroyuki Shoji0
Hideya Takakura0
Date of Patent
June 26, 2007
0Patent Application Number
109749100
Date Filed
October 28, 2004
0Patent Primary Examiner
Patent abstract
A manufacturing method of an optical coupling device includes, preparing an elongated lead frame on which a plurality of tie bars are placed between a pair of side rails that are mutually in parallel with each other so as to orthogonally cross the tie bars, with a plurality of lead terminals being placed in a staggered form in a manner so as to orthogonally cross the tie bars, and laterally cutting the elongated lead frame to prepare a plurality of strap-shaped lead frames, in such a manner that the length of protrusion of a cut end of each of the side rails from each of the tie bars is made longer than the length of protrusion of a lead terminal from each of the tie bars.
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