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Inventor
NAKASHIGE KEIKO
JP
3 patents
⚠️ This page may combine multiple inventors who share the name “NAKASHIGE KEIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
2 patents
US6806450B2
Oct 19, 2004
Hazardous material detection system
HITACHI LTD
12 citations
72
US6940067B2
Sep 6, 2005
Hazardous material detection system
HITACHI LTD
0 citations
51
NOF CORP
1 patent
US7091870B2
Aug 15, 2006
Security system and method of security service business
NOF CORP
9 citations
70