Inventor
YAMAGUCHI MASANAGA
JP6 patents
⚠️ This page may combine multiple inventors who share the name “YAMAGUCHI MASANAGA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EARTH CHEMICAL CO
5 patentsUS4228124AOct 14, 1980
Fumigating method and apparatus
EARTH CHEMICAL CO104 citations94
US4171340AOct 16, 1979
Fumigating apparatus and method
EARTH CHEMICAL CO63 citations94
US4163038AJul 31, 1979
Fumigating method and apparatus
EARTH CHEMICAL CO65 citations94
US6391329B1May 21, 2002
Insect pest control method
EARTH CHEMICAL CO48 citations92
US6143313ANov 7, 2000
Insect pest control method
EARTH CHEMICAL CO37 citations88