P

Inventor

HIRAIWA TAKASHI

JP7 patents
⚠️ This page may combine multiple inventors who share the name “HIRAIWA TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SEIKO EPSON CORP

3 patents

DENSO CORP

2 patents

NIPPON DENSO CO

1 patent

E INK CORP

1 patent