P

Inventor

TOKUNAGA YUKIO

JP40 patents
⚠️ This page may combine multiple inventors who share the name “TOKUNAGA YUKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUBISHI PAPER MILLS LTD

12 patents

SUMITOMO DUREZ CO

11 patents

NIPPON TELEGRAPH & TELEPHONE

5 patents

KUMIAI CHEMICAL INDUSTRY CO

4 patents

OKI ELECTRIC IND CO LTD

2 patents

SEIKO EPSON CORP

2 patents

FUJI PHOTO FILM CO LTD

1 patent

IHARA CHEMICAL IND CO

1 patent

KASEI OPTONIX

1 patent

SUMITOMO BAKELITE CO

1 patent