Inventor · disambiguated record

Hirofumi Ohsawa

Also filed as: OHSAWA HIROFUMI

3 granted patents·37 citations·filing 1999–2003

70Inventor score

Technology areasG11B

Files withFUJITSU LTD3

Top patents by PatentIndex Score

3 records

0180US7233453B2Servo track writing device and method thereofFUJITSU LTD·Filed 2003·Granted Jun 19, 2007·17 cites·42 claims
0276US6760180B2Servo track writer and driving method thereforFUJITSU LTD·Filed 2001·Granted Jul 6, 2004·16 cites·13 claims
0335US6452739B1Precise positioning device and method for servo track writingFUJITSU LTD·Filed 1999·Granted Sep 17, 2002·4 cites·17 claims

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