Inventor · disambiguated record
Yotaro Tsutsumi
Also filed as: TSUTSUMI YOTARO
6 granted patents·222 citations·filing 1981–1992
87Inventor score
Files withTOYO SEIKAN KAISHA LTD6
Top patents by PatentIndex Score
6 records- 0185US4473989AMethod, a line and a pouch supporting base for automatically filling up and sealing pouches at high speedTOYO SEIKAN KAISHA LTD·Filed 1981·Granted Oct 2, 1984·57 cites·47 claims
- 0285US4454979ALaminated packing bag with spout formed from handle portionTOYO SEIKAN KAISHA LTD·Filed 1981·Granted Jun 19, 1984·67 cites·8 claims
- 0379USD272047SBag for holding liquidTOYO SEIKAN KAISHA LTD·Filed 1981·Granted Jan 3, 1984·17 cites·1 claims
- 0462US4403710AEasily-openable heat seal lidTOYO SEIKAN KAISHA LTD·Filed 1982·Granted Sep 13, 1983·29 cites·12 claims
- 0560US4428494AEasily-openable heat seal lidTOYO SEIKAN KAISHA LTD·Filed 1982·Granted Jan 31, 1984·26 cites·5 claims
- 0653US5312659ALaminated film bag for packaging foodTOYO SEIKAN KAISHA LTD·Filed 1992·Granted May 17, 1994·26 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Yotaro Tsutsumi 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 →