Inventor
SAKASHITA MASAO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “SAKASHITA MASAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL CORP
8 patentsUS6190780B1Feb 20, 2001
Surface treated metal material and surface treating agent
NIPPON STEEL CORP87 citations96
US6200672B1Mar 13, 2001
Surface-treated metal plate and metal surface treating fluid
NIPPON STEEL CORP61 citations95
US4975190ADec 4, 1990
Organic polymer separation membrane having fluorene skeleton and oxygen enrichment device utilizing same
NIPPON STEEL CORP16 citations81
US4968331ANov 6, 1990
Organic polymer separation membrane having fluorene skeleton and oxygen enrichment device utilizing same
NIPPON STEEL CORP19 citations81
US5049169ASep 17, 1991
Polysulfone separation membrane
NIPPON STEEL CORP21 citations78
US5116504AMay 26, 1992
Organic polymer separation membrane having fluorene skeleton and oxygen enrichment device utilizing same
NIPPON STEEL CORP9 citations72
US6582586B1Jun 24, 2003
Method of removing scales and preventing scale formation on metal materials and apparatus therefor
NIPPON STEEL CORP11 citations65
US4906550AMar 6, 1990
Method of producing polydiacetylene thin film
NIPPON STEEL CORP6 citations61
KAWAI MUSICAL INSTR MFG CO
4 patentsUS4371745AFeb 1, 1983
Shielded wire
KAWAI MUSICAL INSTR MFG CO55 citations95
US4162644AJul 31, 1979
Automatic rhythm accompaniment apparatus in an electronic organ
KAWAI MUSICAL INSTR MFG CO7 citations73
US4271742AJun 9, 1981
Sound generator for producing ANGKLONG like sound
KAWAI MUSICAL INSTR MFG CO5 citations62
US4290333ASep 22, 1981
Expression means of electronic musical instrument
KAWAI MUSICAL INSTR MFG CO1 citations51