Inventor
IWASE KEIZO
3 patents
⚠️ This page may combine multiple inventors who share the name “IWASE KEIZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON ELECTRIC CO
2 patentsUS3963630AJun 15, 1976
Lead zirconate-titanate powder of particle sizes between 0.02 and 0.2 micron, process for producing same, and high-density piezoelectric ceramics made of powder
NIPPON ELECTRIC CO37 citations90
US4119536AOct 10, 1978
Method of disposing of a ferrous-ion containing acidic aqueous waste by forming polycrystalline iron compound particles
NIPPON ELECTRIC CO20 citations80