Inventor · disambiguated record
Akio Totsuka
Also filed as: TOTSUKA AKIO
3 granted patents·29 citations·filing 1990–1991
69Inventor score
Files withNIPPON PETROCHEMICALS CO LTD3
Top patents by PatentIndex Score
3 records- 0151US5267848AApparatus for manufacturing sheetsNIPPON PETROCHEMICALS CO LTD·Filed 1991·Granted Dec 7, 1993·16 cites·10 claims
- 0228US5250246AMethod and apparatus for manufacturing sheetsNIPPON PETROCHEMICALS CO LTD·Filed 1990·Granted Oct 5, 1993·4 cites·32 claims
- 0327US5401563ATier sheetsNIPPON PETROCHEMICALS CO LTD·Filed 1991·Granted Mar 28, 1995·9 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Akio Totsuka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →