Inventor
SHIBATA HUMIO
JP3 patents
⚠️ This page may combine multiple inventors who share the name “SHIBATA HUMIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
2 patentsUS5002009AMar 26, 1991
Furnace for formation of black oxide film on the surface of thin metal sheet and method for formation of black oxide film on the surface of shadow mask material by use of said furnace
TOSHIBA KK19 citations70
US4859251AAug 22, 1989
Furnace for formation of black oxide film on the surface of thin metal sheet and method for formation of black oxide film on the surface of shadow mask material by use of said furnace
TOSHIBA KK8 citations70