Inventor
HAGA HIROYO
JP10 patents
⚠️ This page may combine multiple inventors who share the name “HAGA HIROYO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL CORP
7 patentsUS4804021AFeb 14, 1989
Highly tough ERW steel pipe with distinguished sour resistance
NIPPON STEEL CORP14 citations73
US4842816AJun 27, 1989
High toughness steel
NIPPON STEEL CORP13 citations72
US4254323AMar 3, 1981
Apparatus for monitoring and controlling a welding phenomenon in an electric resistance welding
NIPPON STEEL CORP11 citations70
US4802270AFeb 7, 1989
Apparatus for passing optical fibers through tubular products
NIPPON STEEL CORP9 citations69
US4793048ADec 27, 1988
Method for passing optical fibers through tubular products by vibrating the tubular products
NIPPON STEEL CORP15 citations69
US4645893AFeb 24, 1987
Method for manufacturing spiral-welded steel pipe
NIPPON STEEL CORP12 citations66
US4079224AMar 14, 1978
Method for preventing brittle fracture of steel pipe structures
NIPPON STEEL CORP8 citations64
MEMC ELECTRONIC MATERIALS
3 patentsUS6869477B2Mar 22, 2005
Controlled neck growth process for single crystal silicon
MEMC ELECTRONIC MATERIALS22 citations88
US7182809B2Feb 27, 2007
Nitrogen-doped silicon substantially free of oxidation induced stacking faults
MEMC ELECTRONIC MATERIALS10 citations81
US7404856B2Jul 29, 2008
Nitrogen-doped silicon substantially free of oxidation induced stacking faults
MEMC ELECTRONIC MATERIALS6 citations71