Inventor · disambiguated record
Yuuichi Fukamachi
Also filed as: FUKAMACHI YUUICHI
5 granted patents·117 citations·filing 1993–2002
78Inventor score
Technology areasG11B
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD5
Top patents by PatentIndex Score
5 records- 0193US5422874AOptical recording disk, and recording/reading apparatus using sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jun 6, 1995·67 cites·17 claims
- 0287US5724338ARewritable disk-shaped optical recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Mar 3, 1998·48 cites·21 claims
- 0343US6811889B2Magneto-optical recording medium having a GDFECO readout magnetic filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 2, 2004·0 cites·7 claims
- 0442US6521357B1Magneto-optical recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 18, 2003·0 cites·5 claims
- 0536US6399227B1Magneto-optical recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jun 4, 2002·2 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Yuuichi Fukamachi 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 →