Inventor · disambiguated record
Tomoto Kawamura
Also filed as: KAWAMURA TOMOTO
44 granted patents·16 pending applications·51 citations·filing 2003–2025
96Inventor score
Files withHITACHI MEDIA ELECTRON KK12HITACHI-LG DATA STORAGE INC9KAWAMURA TOMOTO8HITACHI LTD7HITACHI HIGH TECH CORP6
Top patents by PatentIndex Score
60 records- 0191US10078236B2Dimmer and video display device using the sameHITACHI LG DATA STORAGE INC·Filed 2016·Granted Sep 18, 2018·5 cites·2 claims
- 0287US7327661B2Optical pickup and optical information recording apparatus using the sameHITACHI LTD·Filed 2003·Granted Feb 5, 2008·14 cites·3 claims
- 0386US7706220B2Photodetector, diffraction grating, optical pickup and optical disc apparatusHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Apr 27, 2010·6 cites·11 claims
- 0486US7567495B2Optical pickup apparatus and optical disc apparatus using sameHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jul 28, 2009·5 cites·3 claims
- 0583US10365490B2Head-mounted display, head-up display and picture displaying methodMAXELL LTD·Filed 2015·Granted Jul 30, 2019·4 cites·14 claims
- 0680US7948858B2Optical information processing apparatus, optical pick-up device and optical recording disc systemHITACHI MEDIA ELECTRON KK·Filed 2009·Granted May 24, 2011·4 cites·7 claims
- 0780US7590043B2Optical pickup and optical information recording apparatus using the sameHITACHI LTD·Filed 2007·Granted Sep 15, 2009·2 cites·2 claims
- 0878US2025225690A1Ar display apparatus and ar display methodMAXELL LTD·Filed 2025·Application pending·0 cites
- 0978US2024127496A1Ar display apparatus and ar display methodMAXELL LTD·Filed 2023·Application pending·0 cites
- 1076US11143872B2Waveguide and video image display deviceHITACHI LG DATA STORAGE INC·Filed 2018·Granted Oct 12, 2021·2 cites·14 claims
- 1176US7502303B2Optical information processing apparatus, optical pick-up device and optical recording disc systemHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Mar 10, 2009·3 cites·13 claims
- 1275US9927613B2Image display apparatus and head mounted displayHITACHI LG DATA STORAGE INC·Filed 2015·Granted Mar 27, 2018·2 cites·11 claims
- 1369US11880909B2AR display apparatus and AR display methodMAXELL LTD·Filed 2017·Granted Jan 23, 2024·1 cites·18 claims
- 1465US8169880B2Optical pickup having radially arranged lenses in a low profile constructionKAWAMURA TOMOTO·Filed 2011·Granted May 1, 2012·1 cites·6 claims
- 1565US7978587B2Optical pickup apparatus and optical disc apparatus with a single beam systemHITACHI MEDIA ELECTRON KK·Filed 2009·Granted Jul 12, 2011·0 cites·10 claims
- 1664US8427911B2Optical pickupKITA HIROMI·Filed 2010·Granted Apr 23, 2013·1 cites·16 claims
- 1764US7911915B2Optical pickup and optical information recording apparatus using the sameHITACHI LTD·Filed 2007·Granted Mar 22, 2011·0 cites·1 claims
- 1863US7724626B2Optical pickup and optical information recording apparatus using the sameHITACHI LTD·Filed 2007·Granted May 25, 2010·0 cites·2 claims
- 1963US7697394B2Optical pickup and optical information recording apparatus using the sameHITACHI LTD·Filed 2007·Granted Apr 13, 2010·0 cites·8 claims
- 2063US7697393B2Optical pickup and optical information recording apparatus using the sameHITACHI LTD·Filed 2007·Granted Apr 13, 2010·0 cites·9 claims
- 2162US7940630B2Optical 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
- 2261US7885166B2Optical 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
- 2360US8593928B2Optical head and optical drive deviceKAWAMURA TOMOTO·Filed 2012·Granted Nov 26, 2013·1 cites·14 claims
- 2459US7733760B2Optical pickup having radially arranged lenses in a low profile constructionHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jun 8, 2010·0 cites·7 claims
- 2554US8144565B2Optical head and apparatus using the sameKAWAMURA TOMOTO·Filed 2009·Granted Mar 27, 2012·0 cites·12 claims
- 2653US11543648B2Virtual image projection deviceHITACHI LG DATA STORAGE INC·Filed 2018·Granted Jan 3, 2023·0 cites·12 claims
- 2752US11906420B2Light source and biochemical analyzerHITACHI HIGH TECH CORP·Filed 2020·Granted Feb 20, 2024·0 cites·17 claims
- 2852US10445577B2Information display method and information display terminalMAXELL LTD·Filed 2014·Granted Oct 15, 2019·0 cites·22 claims
- 2952US7876659B2Optical pickup and optical driveHITACHI MEDIA ELECTRON KK·Filed 2008·Granted Jan 25, 2011·0 cites·6 claims
- 3052US2013176840A1Optical PickupKITA HIROMI·Filed 2013·Application pending·0 cites
- 3151US11754493B2Broadband light source device and biochemical analyzing deviceHITACHI HIGH TECH CORP·Filed 2019·Granted Sep 12, 2023·0 cites·10 claims
- 3251US8014258B2Optical pickup having radially arranged lenses in a low profile constructionHITACHI MEDIA ELECTRON KK·Filed 2010·Granted Sep 6, 2011·0 cites·7 claims
- 3351US2008198730A1Optical head and apparatus for optically recording and reproducing informationHITACHI MEDIA ELECTRON KK·Filed 2008·Application pending·0 cites
- 3450US11493759B2Hologram light guide plate with plurality of layers and head mount display using hologram light guide plateHITACHI LG DATA STORAGE INC·Filed 2020·Granted Nov 8, 2022·0 cites·15 claims
- 3550US2008298208A1Optical head and optical disc apparatusMAEDA NOBUYUKI·Filed 2008·Application pending·0 cites
- 3648US7936658B2Photodetector, diffraction grating, optical pickup and optical disc apparatusHITACHI MEDIA ELECTRON KK·Filed 2010·Granted May 3, 2011·0 cites·11 claims
- 3748US2021382309A1Image display deviceHITACHI LG DATA STORAGE INC·Filed 2021·Application pending·0 cites
- 3847US10413187B2Optical scanning device, imaging device, and TOF type analyzerHITACHI LTD·Filed 2016·Granted Sep 17, 2019·0 cites·15 claims
- 3947US9551917B2Light source unit and projection display system using sameHITACHI CONSUMER ELECTRONICS·Filed 2013·Granted Jan 24, 2017·0 cites·2 claims
- 4047US8498190B2Optical head using beam dividing elementKAWAMURA TOMOTO·Filed 2012·Granted Jul 30, 2013·0 cites·13 claims
- 4147US8331207B2Optical pickup and optical disc unitIZUMI KATSUHIKO·Filed 2008·Granted Dec 11, 2012·0 cites·8 claims
- 4247US2024202953A1Biological sample measurement deviceHITACHI HIGH TECH CORP·Filed 2022·Application pending·0 cites
- 4347US2016313560A1Image projection device and head mounted displayHITACHI-LG DATA STORAGE INC·Filed 2014·Application pending·0 cites
- 4446US11971346B2Biological sample detection deviceHITACHI HIGH TECH CORP·Filed 2020·Granted Apr 30, 2024·0 cites·13 claims
- 4546US8154962B2Optical pickup and optical information recording and reproducing deviceMORI HIROMITSU·Filed 2007·Granted Apr 10, 2012·0 cites·11 claims
- 4645US12196673B2Defect inspection apparatus and defect inspection methodHITACHI HIGH TECH CORP·Filed 2020·Granted Jan 14, 2025·0 cites·10 claims
- 4745US2006193219A1Diffraction grating, optical pickup device, and optical disk apparatusKAWAMURA TOMOTO·Filed 2006·Application pending·0 cites
- 4843US8488425B2Optical pickup device and optical disc apparatusYAMAZAKI KAZUYOSHI·Filed 2010·Granted Jul 16, 2013·0 cites·15 claims
- 4943US2013076800A1Scanning projection apparatus and scanning image displayHATAGI MICHIO·Filed 2012·Application pending·0 cites
- 5042US10303047B2Optical integrator and video projection device using sameHITACHI CHEMICAL CO LTD·Filed 2015·Granted May 28, 2019·0 cites·12 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →