Inventor
YODA MASUMI
JP7 patents
⚠️ This page may combine multiple inventors who share the name “YODA MASUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NHK SPRING CO LTD
5 patentsUS5602381AFeb 11, 1997
Objects to be checked for authenticity, and method and apparatus for checking whether or not objects are authentic
NHK SPRING CO LTD158 citations98
US5756220AMay 26, 1998
Object to be checked for authenticity and a method for manufacturing the same
NHK SPRING CO LTD73 citations94
US5601931AFeb 11, 1997
Object to be checked for authenticity and a method for manufacturing the same
NHK SPRING CO LTD68 citations94
US5473147ADec 5, 1995
Method and an apparatus for checking objects to be checked for authenticity
NHK SPRING CO LTD31 citations92
US5739517AApr 14, 1998
Apparatus and a method for checking an object to be checked for authenticity
NHK SPRING CO LTD23 citations91