Inventor · disambiguated record
Shigemasa Hakakoshi
Also filed as: HAKAKOSHI SHIGEMASA
4 granted patents·72 citations·filing 1991–2007
77Inventor score
Top patents by PatentIndex Score
4 records- 0171US5162157ASliding material and method of manufacturing the sameDAIDO METAL CO·Filed 1991·Granted Nov 10, 1992·18 cites·12 claims
- 0270US5091098ASliding material and method of manufacturing the sameDAIDO METAL CO·Filed 1991·Granted Feb 25, 1992·24 cites·4 claims
- 0367US5447774AComposite sliding member with high porosity sintering layerDAIDO METAL CO·Filed 1993·Granted Sep 5, 1995·29 cites·9 claims
- 0462US7749428B2Method of manufacturing a clad material of bronze alloy and steelDAIDO METAL CO LTD·Filed 2007·Granted Jul 6, 2010·1 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Shigemasa Hakakoshi 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 →