Inventor
HARA YASUHIKO
JP19 patents
⚠️ This page may combine multiple inventors who share the name “HARA YASUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
16 patentsUS4608494AAug 26, 1986
Component alignment apparatus
HITACHI LTD73 citations96
US5754621AMay 19, 1998
X-ray inspection method and apparatus, prepreg inspecting method, and method for fabricating multi-layer printed circuit board
HITACHI LTD56 citations95
US5146509ASep 8, 1992
Method of inspecting defects in circuit pattern and system for carrying out the method
HITACHI LTD63 citations95
US4816686AMar 28, 1989
Method and apparatus for detecting wiring patterns
HITACHI LTD65 citations94
US4692690ASep 8, 1987
Pattern detecting apparatus
HITACHI LTD73 citations94
US5331407AJul 19, 1994
Method and apparatus for detecting a circuit pattern
HITACHI LTD25 citations92
US4908871AMar 13, 1990
Pattern inspection system
HITACHI LTD46 citations92
US4614430ASep 30, 1986
Method of detecting pattern defect and its apparatus
HITACHI LTD40 citations92
US4508453AApr 2, 1985
Pattern detection system
HITACHI LTD48 citations92
US4148065AApr 3, 1979
Method and apparatus for automatically inspecting and correcting masks
HITACHI LTD60 citations92
US4962541AOct 9, 1990
Pattern test apparatus
HITACHI LTD22 citations82
US4672209AJun 9, 1987
Component alignment method
HITACHI LTD20 citations82
US4700225AOct 13, 1987
Method and apparatus for testing pattern of a printed circuit board
HITACHI LTD20 citations81
US4277175AJul 7, 1981
Method and apparatus for inspecting printed wiring boards
HITACHI LTD15 citations73
US4930890AJun 5, 1990
Method and apparatus for detecting through-hole voids in multi-layer printed wiring board
HITACHI LTD13 citations72
US5930382AJul 27, 1999
Wiring pattern inspecting method and system for carrying out the same
HITACHI LTD15 citations70