Inventor

OKAMOTO KEISHIROU

JP2 patents

Patents

2 patents

US7265168B2Sep 4, 2007

High-strength hydraulic cement compositions

TAKEMOTO OIL & FAT CO LTD5 citations59

US7259197B2Aug 21, 2007

Ultra high-strength hydraulic cement compositions

TAKEMOTO OIL & FAT CO LTD6 citations59