P

Inventor

SHIGERU KEIJIRO

JP9 patents
⚠️ This page may combine multiple inventors who share the name “SHIGERU KEIJIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO OSAKA CEMENT CO LTD

6 patents

SHIGERU KEIJIRO

2 patents

SUMITOMO CEMENT CO

1 patent