Inventor · disambiguated record
Kiichi Hamamoto
Also filed as: HAMAMOTO KIICHI
20 granted patents·1 pending application·377 citations·filing 1994–2021
95Inventor score
Top patents by PatentIndex Score
21 records- 0197US8774572B2Bistable elementHAMAMOTO KIICHI·Filed 2012·Granted Jul 8, 2014·99 cites·8 claims
- 0286US6768758B1Semiconductor laser, semiconductor optical amplifier, and production method thereofNEC CORP·Filed 2000·Granted Jul 27, 2004·25 cites·15 claims
- 0382US6813068B2Semiconductor optical amplifier and semiconductor laserNEC CORP·Filed 2002·Granted Nov 2, 2004·19 cites·24 claims
- 0479US5841929ALight wavelength filtering circuit and manufacturing method thereofNEC CORP·Filed 1996·Granted Nov 24, 1998·56 cites·14 claims
- 0579US5565693ASemiconductor optical integrated circuitsNEC CORP·Filed 1994·Granted Oct 15, 1996·34 cites·15 claims
- 0671US5770466ASemiconductor optical integrated circuits and method for fabricating the sameNEC CORP·Filed 1995·Granted Jun 23, 1998·32 cites·28 claims
- 0764US5521994ASemiconductor optical waveguide-integrated light-receiving deviceNEC CORP·Filed 1995·Granted May 28, 1996·30 cites·12 claims
- 0862US8295663B2Super-luminescent light emitting diodeHAMAMOTO KIICHI·Filed 2008·Granted Oct 23, 2012·2 cites·19 claims
- 0962US7466736B2Semiconductor laser diode, semiconductor optical amplifier, and optical communication deviceNEC CORP·Filed 2005·Granted Dec 16, 2008·2 cites·16 claims
- 1058US6148132ASemiconductor optical amplifierNEC CORP·Filed 1998·Granted Nov 14, 2000·21 cites·7 claims
- 1157US11955772B2Semiconductor light emitting elementDENSO CORP·Filed 2021·Granted Apr 9, 2024·0 cites·18 claims
- 1257US5796883AOptical integrated circuit and method for fabricating the sameNEC CORP·Filed 1996·Granted Aug 18, 1998·22 cites·38 claims
- 1354US6205163B1Single-transverse-mode 1×N multi-mode interferometer type semiconductor laser deviceNEC CORP·Filed 1998·Granted Mar 20, 2001·18 cites·4 claims
- 1451US8929418B2Semiconductor laserUNIV KYUSHU NAT UNIV CORP·Filed 2013·Granted Jan 6, 2015·0 cites·22 claims
- 1549US7262435B2Single-transverse-mode laser diode with multi-mode waveguide region and manufacturing method of the sameNEC CORP·Filed 2004·Granted Aug 28, 2007·1 cites·4 claims
- 1647US8917959B2Analyzing element and analyzing apparatus using sameHAMAMOTO KIICHI·Filed 2007·Granted Dec 23, 2014·0 cites·9 claims
- 1741US9563020B2Inter-mode light switchUNIV KYUSHU NAT UNIV CORP·Filed 2015·Granted Feb 7, 2017·0 cites·12 claims
- 1840US6445722B2Single-transverse-mode laser diode with multi-mode waveguide region and manufacturing method of the sameNEC CORP·Filed 1998·Granted Sep 3, 2002·7 cites·6 claims
- 1939US6117753AMethod of manufacturing compound semiconductor integrated circuitNEC CORP·Filed 1995·Granted Sep 12, 2000·7 cites·7 claims
- 2039US2003174954A1Multi-mode interference waveguide-including semiconductor laser diode module, fiber-type optical amplifier, optical relay and optical communication systemNEC CORP·Filed 2003·Application pending·0 cites
- 2131US6661960B2Semiconductor waveguide photodetectorNEC CORP·Filed 1998·Granted Dec 9, 2003·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →