Inventor · disambiguated record
Chisai Hirose
Also filed as: HIROSE CHISAI
9 granted patents·162 citations·filing 1992–2002
89Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES9
Top patents by PatentIndex Score
9 records- 0183US5385594AMethod for fabricating an optical waveguideSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jan 31, 1995·41 cites·11 claims
- 0280US5556442AMethod for fabricating an optical waveguideSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Sep 17, 1996·45 cites·7 claims
- 0374US6560381B2Optical filterSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted May 6, 2003·16 cites·4 claims
- 0471US6643431B2Optical device and control method thereofSUMITOMO ELECTRIC INDUSTRIES·Filed 2002·Granted Nov 4, 2003·13 cites·4 claims
- 0566US5551966AOptical waveguide and method of fabricating the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Sep 3, 1996·28 cites·6 claims
- 0664US6782168B2Apparatus for and method of monitoring wavelength multiplexed signal light as well as optical transmission system using the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2002·Granted Aug 24, 2004·6 cites·14 claims
- 0756US6690872B2Silica based optical waveguide and production method thereforSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Feb 10, 2004·5 cites·8 claims
- 0852US6819859B2Planar lightwave circuit type variable optical attenuatorSUMITOMO ELECTRIC INDUSTRIES·Filed 2002·Granted Nov 16, 2004·4 cites·5 claims
- 0936US5693116AProcess for producing optical waveguideSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Dec 2, 1997·4 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →