Inventor · disambiguated record
Tasuku Shimoyama
Also filed as: SHIMOYAMA TASUKU
2 granted patents·16 citations·filing 1991–1991
55Inventor score
Files withIHARA CHEMICAL IND CO2
Top patents by PatentIndex Score
2 records- 0174US5244469AProcess for preparation of black coloring materials and application thereof: chitosan treated with black extract of lithospermum rootIHARA CHEMICAL IND CO·Filed 1991·Granted Sep 14, 1993·15 cites·19 claims
- 0225US5358538AProcess for production of black coloring material and cosmetics containing said black coloring material and use thereofIHARA CHEMICAL IND CO·Filed 1991·Granted Oct 25, 1994·1 cites·17 claims
Join the waitlist — get patent alerts
Get an alert when Tasuku Shimoyama 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 →