Inventor
SHIBAZAKI HIROJI
7 patents
⚠️ This page may combine multiple inventors who share the name “SHIBAZAKI HIROJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHIRAISHI KOGYO KAISHA LTD
6 patentsUS4244933AJan 13, 1981
Calcium carbonate particles and processes for preparing same
SHIRAISHI KOGYO KAISHA LTD54 citations92
US4133894AJan 9, 1979
Process for preparing precipitated calcium carbonate
SHIRAISHI KOGYO KAISHA LTD42 citations92
US4124688ANov 7, 1978
Process for preparing cubic crystals of calcium carbonate
SHIRAISHI KOGYO KAISHA LTD31 citations92
US4219590AAug 26, 1980
Method for improving calcium carbonate
SHIRAISHI KOGYO KAISHA LTD68 citations91
US4159312AJun 26, 1979
Calcium carbonate powders
SHIRAISHI KOGYO KAISHA LTD44 citations90
US4240870ADec 23, 1980
Filled paper
SHIRAISHI KOGYO KAISHA LTD9 citations73