Inventor
NIWA SHIGEO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “NIWA SHIGEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI MINING & CEMENT CO
6 patentsUS4497075AFeb 5, 1985
Filler for filling in defects or hollow portions of bones
MITSUBISHI MINING & CEMENT CO141 citations96
US4429691AFeb 7, 1984
Method for filling in defects or hollow portions of bones
MITSUBISHI MINING & CEMENT CO140 citations96
US4820573AApr 11, 1989
Fiber glass mainly composed of calcium phosphate
MITSUBISHI MINING & CEMENT CO26 citations92
US4735857AApr 5, 1988
Fiber glass mainly composed of calcium phosphate
MITSUBISHI MINING & CEMENT CO27 citations92
US4613577ASep 23, 1986
Fiber glass mainly composed of calcium phosphate
MITSUBISHI MINING & CEMENT CO33 citations92
US5013323AMay 7, 1991
Implant material for replacing hard tissue of living body
MITSUBISHI MINING & CEMENT CO30 citations90
NGK SPARK PLUG CO
4 patentsAISIN SEIKI
3 patentsUS4994085AFeb 19, 1991
Artificial stem unit for coxa with setting guide
AISIN SEIKI54 citations95
US4610693ASep 9, 1986
Implanting article molded by centrifugal dispersion and the method for producing the same
AISIN SEIKI22 citations78
US4979958ADec 25, 1990
Artificial stem for femur of coxa
AISIN SEIKI18 citations72