Inventor
MARUYAMA YUJI
JP33 patents
⚠️ This page may combine multiple inventors who share the name “MARUYAMA YUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
12 patentsUS5608816AMar 4, 1997
Apparatus for inspecting a wiring pattern according to a micro-inspection and a macro-inspection performed in parallel
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations92
US5272763ADec 21, 1993
Apparatus for inspecting wiring pattern formed on a board
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32 citations92
US5214712AMay 25, 1993
Pattern inspection system for inspecting defect of land pattern for through-hole on printed board
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD38 citations92
US4924322AMay 8, 1990
Bi-level image display signal processing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD49 citations92
US5103105AApr 7, 1992
Apparatus for inspecting solder portion of a circuit board
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations91
US5200799AApr 6, 1993
System for optically inspecting conditions of parts packaged on substrate
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD38 citations90
US4891710AJan 2, 1990
Bi-level image display signal processing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73
US4890167ADec 26, 1989
Apparatus for processing image signal
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations73
US5787191AJul 28, 1998
Wiring pattern inspection apparatus for printed circuit board
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations72
US4983827AJan 8, 1991
Linescan apparatus for detecting salient pattern of a product
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations72
US5027418AJun 25, 1991
Electro-optical inspection apparatus for printed-circuit boards with components mounted thereon
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations70
US5459795AOct 17, 1995
Wiring pattern inspection apparatus for printed circuit board
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations61
WEST ELECTRIC CO
5 patentsUS4697906AOct 6, 1987
Electric flash device
WEST ELECTRIC CO12 citations74
US4469990ASep 4, 1984
Electronic flash device
WEST ELECTRIC CO11 citations73
US4441797AApr 10, 1984
Electronic flash device capable of automatically controlling the quantity of a flash of light
WEST ELECTRIC CO13 citations73
US4603958AAug 5, 1986
Automatic electronic flash
WEST ELECTRIC CO5 citations62
US4186328AJan 29, 1980
Electronic flash
WEST ELECTRIC CO0 citations42
MARUYAMA YUJI
5 patentsUS4660572AApr 28, 1987
Container, for fixing an animal to be tested in a biochemical test
MARUYAMA YUJI13 citations70
US4616120AOct 7, 1986
Microwave-heating apparatus having means for measuring reflection coefficient under low power operation
MARUYAMA YUJI16 citations70
US9739350B2Aug 22, 2017
Belt installation jig and a belt installation method using same
MARUYAMA YUJI3 citations69
US8159250B2Apr 17, 2012
Testing device for testing a semiconductor device
MARUYAMA YUJI0 citations33
US8648617B2Feb 11, 2014
Semiconductor device and method of testing semiconductor device
MARUYAMA YUJI0 citations32