Inventor · disambiguated record
Toshifumi Hasama
Also filed as: HASAMA TOSHIFUMI
3 granted patents·1 pending application·20 citations·filing 2008–2013
67Inventor score
Technology areasG02B
Files withISHIKAWA HIROSHI2NAT INST OF ADVANCED IND SCIEN1OF ADVANCED IND SCIENCE AND TECHNOLOGY NAT INST1
Top patents by PatentIndex Score
4 records- 0181US7567736B2Waveguide type wavelength domain optical switchNAT INST OF ADVANCED IND SCIEN·Filed 2008·Granted Jul 28, 2009·11 cites·20 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
- 0442US2013272650A1Wavelength cross connect deviceOF ADVANCED IND SCIENCE AND TECHNOLOGY NAT INST·Filed 2013·Application pending·0 cites
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