P

Inventor

ISHII RYOICHI

JP15 patents
⚠️ This page may combine multiple inventors who share the name “ISHII RYOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ULTEX CORP

6 patents

HITACHI HIGH TECH CORP

3 patents

TOKYO SHIBAURA ELECTRIC CO

2 patents

JAPAN TOBACCO INC

1 patent

OTAKA TADASHI

1 patent

SATO SHIGERU

1 patent

ISHII RYOICHI

1 patent