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.
Join the waitlist — get patent alerts
Get an alert when Tomoto Kawamura 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 →