Inventor · disambiguated record
Isao Kawasumi
Also filed as: KAWASUMI ISAO
2 granted patents·11 citations·filing 1996–2017
49Inventor score
Files withHOYA CORP2
Top patents by PatentIndex Score
2 records- 0147US5766727AMagnetic recording medium and method for manufacturing the sameHOYA CORP·Filed 1996·Granted Jun 16, 1998·11 cites·14 claims
- 0238US11061316B2Mask blank, transfer mask, method of manufacturing a transfer mask, and method of manufacturing a semiconductor deviceHOYA CORP·Filed 2017·Granted Jul 13, 2021·0 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →