Inventor · disambiguated record
Yasuo Kitada
Also filed as: KITADA YASUO
16 granted patents·2 pending applications·133 citations·filing 1988–2015
92Inventor score
Files withHITACHI MEDIA ELECTRON KK7HITACHI LTD6KAWAMURA TOMOTO1KITADA ROTARY ENJINE LLC1MORI HIROMITSU1
Top patents by PatentIndex Score
18 records- 0188US8040780B2Optical pickup device and optical disc apparatusHITACHI MEDIA ELECTRON KK·Filed 2009·Granted Oct 18, 2011·7 cites·6 claims
- 0288US5295125AOptical head device for recording/reproduction for recording medium using plural light spotsHITACHI LTD·Filed 1993·Granted Mar 15, 1994·48 cites·9 claims
- 0386US7567495B2Optical pickup apparatus and optical disc apparatus using sameHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jul 28, 2009·5 cites·3 claims
- 0482US5493554A2-laser optical head and recording/reproducing apparatusHITACHI LTD·Filed 1993·Granted Feb 20, 1996·33 cites·9 claims
- 0571US10411579B2Electric rotating machineKITADA ROTARY ENJINE LLC·Filed 2015·Granted Sep 10, 2019·2 cites·12 claims
- 0671US8295144B2Optical pickup device and optical disc apparatusYAMAZAKI KAZUYOSHI·Filed 2011·Granted Oct 23, 2012·2 cites·4 claims
- 0766US7245574B2Optical head and its adjusting method and optical disk device using the sameHITACHI LTD·Filed 2002·Granted Jul 17, 2007·7 cites·4 claims
- 0865US8169880B2Optical pickup having radially arranged lenses in a low profile constructionKAWAMURA TOMOTO·Filed 2011·Granted May 1, 2012·1 cites·6 claims
- 0965US7978587B2Optical pickup apparatus and optical disc apparatus with a single beam systemHITACHI MEDIA ELECTRON KK·Filed 2009·Granted Jul 12, 2011·0 cites·10 claims
- 1064US5050158AMagnetic clamp for a disk mediumHITACHI LTD·Filed 1988·Granted Sep 17, 1991·14 cites·9 claims
- 1162US7940630B2Optical pick up apparatus with a single beam system and having a diffraction gratingHITACHI MEDIA ELECTRON KK·Filed 2007·Granted May 10, 2011·0 cites·10 claims
- 1262US5555539AMulti-beam split-type optical head for use in optical disk apparatusHITACHI LTD·Filed 1994·Granted Sep 10, 1996·14 cites·10 claims
- 1361US7885166B2Optical pick up apparatus with a single beam system and having a diffraction gratingHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Feb 8, 2011·0 cites·8 claims
- 1459US7733760B2Optical pickup having radially arranged lenses in a low profile constructionHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jun 8, 2010·0 cites·7 claims
- 1551US8014258B2Optical pickup having radially arranged lenses in a low profile constructionHITACHI MEDIA ELECTRON KK·Filed 2010·Granted Sep 6, 2011·0 cites·7 claims
- 1646US8154962B2Optical pickup and optical information recording and reproducing deviceMORI HIROMITSU·Filed 2007·Granted Apr 10, 2012·0 cites·11 claims
- 1746US2004252221A1Video camera using optical discFiled 2004·Application pending·0 cites
- 1843US2006103759A1Disk video cameraHITACHI LTD·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →