Inventor
OBA YOICHI
12 patents
⚠️ This page may combine multiple inventors who share the name “OBA YOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
7 patentsUS4001870AJan 4, 1977
Isolating protective film for semiconductor devices and method for making the same
HITACHI LTD73 citations93
US4040083AAug 2, 1977
Aluminum oxide layer bonding polymer resin layer to semiconductor device
HITACHI LTD45 citations92
US4219587AAug 26, 1980
Process for producing pigment-coated phosphors
HITACHI LTD21 citations81
US4086090AApr 25, 1978
Formation of pattern using acrylamide-diacetoneacrylamide copolymer
HITACHI LTD14 citations73
US4420444ADec 13, 1983
Process for forming phosphor powder layer
HITACHI LTD17 citations72
US4229312AOct 21, 1980
Method of manufacturing a paint composite for magnetic films
HITACHI LTD8 citations72
US4206250AJun 3, 1980
Process for producing pigment-coated phosphors
HITACHI LTD11 citations72
ASAHI CHEM RES LAB
4 patentsUS4970354ANov 13, 1990
Electromagnetic wave shielding circuit and production method thereof
ASAHI CHEM RES LAB121 citations95
US4837050AJun 6, 1989
Method for producing electrically conductive circuits on a base board
ASAHI CHEM RES LAB12 citations72
US4684054AAug 4, 1987
Automatic soldering apparatus and method of using the flux to heat the circuit board
ASAHI CHEM RES LAB7 citations69
US5066692ANov 19, 1991
Electromagnetic wave shielding composition comprising epoxy resin and copper particles
ASAHI CHEM RES LAB10 citations68