Inventor · disambiguated record
Youngkun Lee
Also filed as: LEE YOUNGKUN
5 granted patents·3 pending applications·41 citations·filing 2000–2013
77Inventor score
Top patents by PatentIndex Score
8 records- 0183US6400864B1Broad band semiconductor optical amplifier module having optical amplifiers for amplifying demutiplexed signals of different wavelengths and optical communication system using itHITACHI LTD·Filed 2000·Granted Jun 4, 2002·26 cites·19 claims
- 0272US8294213B2Semiconductor photodiode device and manufacturing method thereofMIURA MAKOTO·Filed 2010·Granted Oct 23, 2012·4 cites·18 claims
- 0369US8350301B2Semiconductor photodiode device and manufacturing method thereofHITACHI LTD·Filed 2010·Granted Jan 8, 2013·2 cites·12 claims
- 0466US9523830B2Optical module and transmitting deviceHITACHI LTD·Filed 2013·Granted Dec 20, 2016·2 cites·5 claims
- 0560US6931189B2Optical waveguides and optical devices with optical waveguidesHITACHI LTD·Filed 2002·Granted Aug 16, 2005·7 cites·6 claims
- 0639US2010247043A1Optical module and wavelength division multiplexing optical moduleHITACHI LTD·Filed 2010·Application pending·0 cites
- 0737US2003185532A1Optical functional device and fabrication process for the sameFiled 2002·Application pending·0 cites
- 0830US2012287959A1Germanium light-emitting elementTANI KAZUKI·Filed 2011·Application pending·0 cites
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