Method and apparatus for working print board by laser

United States of America Patent

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Dec 17, 1991
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N/A
app pub date
Jun 21, 1990
filing date
Jun 22, 1989

priority date (Note)
Expired

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Abstract

A laser output is converted into a pulse output and the pulse output is made variable in accordance with each portion of a copper foil portion and a resin portion of the surface of a print board and a copper foil portion of the back surface.

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Patent Owner(s)

Patent Owner	Address
CANON KABUSHIKI KAISHA A CORP OF JAPAN	30-2 3-CHOME SHIMOMARUKO OHTA-KU TOKYO

International Classification(s)

B23K:SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLA....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Inagawa, Hideho	Yokohama, JP	23	388
Nojo, Shigenobu	Kawasaki, JP	6	235

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Method and apparatus for working print board by laser

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07541374

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PATENT NO	5073687
SERIAL NO	07541374
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07541374

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