Inventor · disambiguated record
Kazuo Higashiura
Also filed as: HIGASHIURA KAZUO
5 granted patents·45 citations·filing 1992–1998
78Inventor score
Files withSANKYO SEIKI SEISAKUSHO KK5
Top patents by PatentIndex Score
5 records- 0161US5761174AOptical pickup device with split hologram element that diffracts light in direction parallel to trackSANKYO SEIKI SEISAKUSHO KK·Filed 1995·Granted Jun 2, 1998·16 cites·17 claims
- 0254US5357280AAutomatic focusing apparatus using scanning line weighting of a video signal to determine an in-focus conditionSANKYO SEIKI SEISAKUSHO KK·Filed 1992·Granted Oct 18, 1994·15 cites·10 claims
- 0352US6167017AOptical head assembly having means for detecting tracking errors based on astigmatisms generated by returning beamsSANKYO SEIKI SEISAKUSHO KK·Filed 1998·Granted Dec 26, 2000·11 cites·11 claims
- 0429US5929907AAutomatic focusing apparatus using scanning line weighting of a video signal to determine an in-focus conditionSANKYO SEIKI SEISAKUSHO KK·Filed 1996·Granted Jul 27, 1999·2 cites·6 claims
- 0528US6184512B1Semiconductor laser apparatus and optical pickup apparatusSANKYO SEIKI SEISAKUSHO KK·Filed 1998·Granted Feb 6, 2001·1 cites·6 claims
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