Inventor

OKAI TSUKASA

4 patents

⚠️ This page may combine multiple inventors who share the name “OKAI TSUKASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DAINIPPON SCREEN MFG

2 patents

US4513444AApr 23, 1985

Method of compressing data

DAINIPPON SCREEN MFG28 citations89

US4700402AOct 13, 1987

Input method for graphic pattern data

DAINIPPON SCREEN MFG16 citations70

TOKYO SHIBAURA ELECTRIC CO

2 patents

US4305152ADec 8, 1981

Security communication system

TOKYO SHIBAURA ELECTRIC CO14 citations71

US4159399AJun 26, 1979

Security communication system using polarity inversion

TOKYO SHIBAURA ELECTRIC CO6 citations60