Inventor · disambiguated record
Hitoshi Kawashima
Also filed as: KAWASHIMA HITOSHI
6 granted patents·1 pending application·16 citations·filing 1998–2018
75Inventor score
Files withISHIKAWA HIROSHI2AGENCY IND SCIENCE TECHN1AIST1FUJITSU LTD1NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE & TECH1
Top patents by PatentIndex Score
7 records- 0178US11022811B2Optical amplifier and optical switch deviceFUJITSU LTD·Filed 2018·Granted Jun 1, 2021·2 cites·13 claims
- 0273US8503836B2Wavelength domain optical switchISHIKAWA HIROSHI·Filed 2011·Granted Aug 6, 2013·4 cites·8 claims
- 0368US8229258B2Optical waveguide-type wavelength domain switchISHIKAWA HIROSHI·Filed 2009·Granted Jul 24, 2012·5 cites·16 claims
- 0442US10901242B2Driving device and driving method for phase controller, and optical switchAIST·Filed 2016·Granted Jan 26, 2021·0 cites·3 claims
- 0542US2013272650A1Wavelength cross connect deviceOF ADVANCED IND SCIENCE AND TECHNOLOGY NAT INST·Filed 2013·Application pending·0 cites
- 0640US10613412B2Light beam deflecting element, wavelength-selective cross-connect device using same, and optical cross-connect deviceNATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE & TECH·Filed 2016·Granted Apr 7, 2020·0 cites·19 claims
- 0735US5946085ADielectric dispersion determining method in terahertz region using femtosecond ultrashort visible optical pulseAGENCY IND SCIENCE TECHN·Filed 1998·Granted Aug 31, 1999·5 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →