Inventor
OTA YOSHIFUMI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “OTA YOSHIFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ULVAC CORP
14 patentsUS5180476AJan 19, 1993
Method for producing transparent conductive films
ULVAC CORP53 citations95
US5288329AFeb 22, 1994
Chemical vapor deposition apparatus of in-line type
ULVAC CORP52 citations92
US5250339AOct 5, 1993
Magnetic recording medium
ULVAC CORP30 citations92
US4832810AMay 23, 1989
Co-based alloy sputter target and process of manufacturing the same
ULVAC CORP31 citations92
US4804590AFeb 14, 1989
Abrasion resistant magnetic recording member
ULVAC CORP34 citations92
US4412907ANov 1, 1983
Ferromagnetic high speed sputtering apparatus
ULVAC CORP29 citations92
US4661420AApr 28, 1987
Optical magnetic recording member
ULVAC CORP31 citations89
US4581245AApr 8, 1986
Method of manufacturing of abrasion resisting magnetic recording product
ULVAC CORP24 citations82
US5147734ASep 15, 1992
Magnetic recording media manufactured by a process in which a negative bias voltage is applied to the substrate during sputtering
ULVAC CORP8 citations74
US5116479AMay 26, 1992
Process for producing transparent conductive film comprising indium oxide
ULVAC CORP16 citations74
US4587179AMay 6, 1986
Magnetic recording medium and manufacturing process thereof
ULVAC CORP7 citations74
US5024854AJun 18, 1991
Method of manufacturing perpendicular type magnetic recording member
ULVAC CORP8 citations73
US5069983ADec 3, 1991
Magnetic recording member
ULVAC CORP10 citations72
US5198309AMar 30, 1993
Magnetic recording member
ULVAC CORP1 citations52
OTA YOSHIFUMI
4 patentsUS9076742B2Jul 7, 2015
Oxidation annealing device and method for fabricating thin film transistor using oxidation annealing
OTA YOSHIFUMI2 citations61
US8829513B2Sep 9, 2014
Oxide semiconductor including Ga, In, Zn, and O and A thin film transistor and a display with the oxide semiconductor including Ga, In, Zn, and O
OTA YOSHIFUMI3 citations61
US8084938B2Dec 27, 2011
Organic electroluminescent panel, organic electroluminescent display, organic electroluminescent lighting device, and production methods thereof
OTA YOSHIFUMI2 citations61
US8410685B2Apr 2, 2013
Organic electroluminescent panel, organic electroluminescent display, organic electroluminescent lighting device, and production methods thereof
OTA YOSHIFUMI1 citations51