Inventor · disambiguated record
Hajime Doi
Also filed as: DOI HAJIME
5 granted patents·50 citations·filing 1986–1989
79Inventor score
Files withHITACHI MAXELL5
Top patents by PatentIndex Score
5 records- 0165US4803584ADisk cartridge with cleaning sheet of non-woven fabricHITACHI MAXELL·Filed 1987·Granted Feb 7, 1989·16 cites·14 claims
- 0257US4709816ARecording disc cartridgeHITACHI MAXELL·Filed 1986·Granted Dec 1, 1987·17 cites·8 claims
- 0349US5029319ACleaning sheet for a magnetic discHITACHI MAXELL·Filed 1989·Granted Jul 2, 1991·8 cites·13 claims
- 0447US4897752ADisk cartridgeHITACHI MAXELL·Filed 1988·Granted Jan 30, 1990·7 cites·9 claims
- 0530US4985799ADisk cartridge with improved disk cleaningHITACHI MAXELL·Filed 1988·Granted Jan 15, 1991·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →