Inventor · disambiguated record
Hitoshi Obara
Also filed as: OBARA HITOSHI
6 granted patents·467 citations·filing 1994–2007
87Inventor score
Top patents by PatentIndex Score
6 records- 0195US5617234AMultiwavelength simultaneous monitoring circuit employing arrayed-waveguide gratingNIPPON TELEGRAPH & TELEPHONE·Filed 1995·Granted Apr 1, 1997·234 cites·41 claims
- 0290US7433594B2Node apparatus, optical wavelength division multiplexing network, and system switching methodNIPPON TELEGRAPH & TELEPHONE·Filed 2006·Granted Oct 7, 2008·16 cites·6 claims
- 0388US7164861B2Node apparatus, optical wavelength division multiplexing network, and system switching methodNIPPON TELEGRAPH & TELEPHONE·Filed 2001·Granted Jan 16, 2007·29 cites·16 claims
- 0486US6157025ADisk shaped tunable optical filterNIPPON TELEGRAPH & TELEPHONE·Filed 1998·Granted Dec 5, 2000·76 cites·31 claims
- 0582US5696623AUV exposure with elongated service lifetimeFUJITSU LTD·Filed 1994·Granted Dec 9, 1997·108 cites·20 claims
- 0662US8059640B2Multistage switch control circuitOBARA HITOSHI·Filed 2007·Granted Nov 15, 2011·4 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →