Assignee
OTOTANI TOHEI
JP·3 granted patents·80 citations·filing 1975–1986
Top patents by PatentIndex Score
3 records- 0181US4671820AComposite calcium clads for deoxidation and desulfurization from molten steelsOTOTANI TOHEI·Filed 1985·Granted Jun 9, 1987·39 cites·4 claims
- 0273US4035892AComposite calcium clad material for treating molten metalsOTOTANI TOHEI·Filed 1975·Granted Jul 19, 1977·24 cites·9 claims
- 0357US4698095AComposite calcium clads for treating molten ironOTOTANI TOHEI·Filed 1986·Granted Oct 6, 1987·17 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when OTOTANI TOHEI files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →