P

Inventor

HIRAOKA MASAKATSU

JP8 patents
⚠️ This page may combine multiple inventors who share the name “HIRAOKA MASAKATSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NGK INSULATORS LTD

3 patents

HITACHI LTD

2 patents

HIRAOKA MASAKATSU

2 patents

SEITETSU KAGAKU CO LTD

1 patent