Inventor · disambiguated record
Toshihiko Hiroshima
Also filed as: HIROSHIMA TOSHIHIKO
6 granted patents·34 citations·filing 2000–2003
77Inventor score
Technology areasG11B
Files withSANYO ELECTRIC CO6
Top patents by PatentIndex Score
6 records- 0178US7184379B2Optical disk recording/reproducing method and apparatus in which recording properties of the disk are detected when recording speed is changedSANYO ELECTRIC CO·Filed 2002·Granted Feb 27, 2007·14 cites·4 claims
- 0278US6356520B1Disk storage deviceSANYO ELECTRIC CO·Filed 2000·Granted Mar 12, 2002·16 cites·3 claims
- 0354US7120099B2Laser output circuit for optical disk recording apparatusSANYO ELECTRIC CO·Filed 2001·Granted Oct 10, 2006·3 cites·4 claims
- 0447US7072263B2Optical disc recording and playback apparatusSANYO ELECTRIC CO·Filed 2003·Granted Jul 4, 2006·1 cites·10 claims
- 0541US7626906B2Tilt control method and apparatus for optical disc recording and playback apparatusSANYO ELECTRIC CO·Filed 2003·Granted Dec 1, 2009·0 cites·12 claims
- 0641US7577069B2Tilt control method and apparatus for optical disc recording and playback apparatusSANYO ELECTRIC CO·Filed 2003·Granted Aug 18, 2009·0 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Toshihiko Hiroshima 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 →