Inventor
MATSUNAGA RYOUJI
JP7 patents
⚠️ This page may combine multiple inventors who share the name “MATSUNAGA RYOUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
5 patentsUS6411377B1Jun 25, 2002
Optical apparatus for defect and particle size inspection
HITACHI LTD174 citations99
US7940383B2May 10, 2011
Method of detecting defects on an object
HITACHI LTD42 citations95
US7692779B2Apr 6, 2010
Apparatus and method for testing defects
HITACHI LTD12 citations92
US7639350B2Dec 29, 2009
Apparatus and method for testing defects
HITACHI LTD25 citations92
US7443496B2Oct 28, 2008
Apparatus and method for testing defects
HITACHI LTD16 citations92