P

Inventor

DOI MASARU

JP18 patents
⚠️ This page may combine multiple inventors who share the name “DOI MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ADVANTEST CORP

14 patents

NGK INSULATORS LTD

2 patents

SANYO ELECTRIC CO

1 patent

DOI MASARU

1 patent