Inventor · disambiguated record
Hiroji Masuda
Also filed as: MASUDA HIROJI
17 granted patents·311 citations·filing 1992–2013
94Inventor score
Top patents by PatentIndex Score
17 records- 0190US5245690AOptical fiber amplifier including rare earth doped fiber and feedback pump light source controlNIPPON TELEGRAPH & TELEPHONE·Filed 1992·Granted Sep 14, 1993·67 cites·24 claims
- 0287US6678087B1Optical amplifier and optical fiber communication system using the amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2000·Granted Jan 13, 2004·28 cites·41 claims
- 0383US6771414B2Optical fiber amplifier and optical communication system using the sameNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted Aug 3, 2004·18 cites·107 claims
- 0482US6172803B1Optical amplifier and transmission system using the sameNIPPON TELEGRAPH & TELEPHONE·Filed 1998·Granted Jan 9, 2001·70 cites·32 claims
- 0579US5471334AMethod and apparatus for monitoring noise figure of optical amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 1993·Granted Nov 28, 1995·62 cites·20 claims
- 0677US6721092B2Thulium-doped fiber amplifier using pump light for improving conversion efficiency in S-bandNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted Apr 13, 2004·14 cites·11 claims
- 0774US6900885B2White light sourceNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted May 31, 2005·12 cites·42 claims
- 0871US6469826B1Optical amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2000·Granted Oct 22, 2002·11 cites·4 claims
- 0970US9515450B2Amplifying optical fiber and optical amplifierFUJIKURA LTD·Filed 2013·Granted Dec 6, 2016·2 cites·9 claims
- 1069US7538937B2Optical amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2006·Granted May 26, 2009·2 cites·23 claims
- 1166US7042634B2Optical amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted May 9, 2006·6 cites·21 claims
- 1263US9252556B2Amplifying optical fiber and optical amplifierFUJIKURA LTD·Filed 2013·Granted Feb 2, 2016·1 cites·7 claims
- 1352US6583924B2Optical amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted Jun 24, 2003·2 cites·12 claims
- 1451US7589888B2Optical amplifier having a constant gain profileNIPPON TELEGRAPH & TELEPHONE·Filed 2006·Granted Sep 15, 2009·0 cites·8 claims
- 1550US7379236B2Optical fiber communication system using remote pumpingNIPPON TELEGRAPH & TELEPHONE·Filed 2004·Granted May 27, 2008·2 cites·3 claims
- 1644US6122087AOptical-frequency-stabilized light sourceANDO ELECTRIC·Filed 1998·Granted Sep 19, 2000·14 cites·10 claims
- 1741US7920793B2Inline repeater and optical fiber communication systemNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Apr 5, 2011·0 cites·4 claims
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