Inventor · disambiguated record
Chikara Watatani
Also filed as: WATATANI CHIKARA
12 granted patents·7 pending applications·30 citations·filing 2002–2022
85Inventor score
Top patents by PatentIndex Score
19 records- 0178US7720123B2Buried type semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 2006·Granted May 18, 2010·7 cites·4 claims
- 0277US6803597B2Semiconductor light-emitting device using graded multi quantum barrierMITSUBISHI ELECTRIC CORP·Filed 2002·Granted Oct 12, 2004·15 cites·6 claims
- 0374US7876799B2Integrated semiconductor optical deviceMITSUBISHI ELECTRIC CORP·Filed 2008·Granted Jan 25, 2011·5 cites·1 claims
- 0472US12308607B2Semiconductor laser element, method for manufacturing same, and semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 2019·Granted May 20, 2025·1 cites·15 claims
- 0564US7298769B2Semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Nov 20, 2007·2 cites·11 claims
- 0650US2025056943A1Semiconductor device and method for manufacturing sameMITSUBISHI ELECTRIC CORP·Filed 2022·Application pending·0 cites
- 0749US2008054277A1Semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 2007·Application pending·0 cites
- 0846US7855096B2Method for manufacturing semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2008·Granted Dec 21, 2010·0 cites·11 claims
- 0944US9171760B2Method of manufacturing semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Oct 27, 2015·0 cites·14 claims
- 1043US7816160B2Manufacturing method for semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2008·Granted Oct 19, 2010·0 cites·16 claims
- 1142US7550304B2Method for manufacturing semiconductor laser elementMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Jun 23, 2009·0 cites·2 claims
- 1242US7544535B2Method for manufacturing semiconductor laser elementMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Jun 9, 2009·0 cites·7 claims
- 1341US7656921B2Semiconductor laser device and method for manufacturing the same semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Feb 2, 2010·0 cites·9 claims
- 1441US2005123018A1Ridge type distributed feedback semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 2004·Application pending·0 cites
- 1541US2004119081A1Semiconductor Laser deviceMITSUBISHI ELECTRIC CORP·Filed 2003·Application pending·0 cites
- 1640US2007171950A1Semiconductor laser device with small variation of the oscillation wavelengthMITSUBISHI ELECTRIC CORP·Filed 2006·Application pending·0 cites
- 1738US2007281383A1Method of manufacturing semiconductor multilayer structureMITSUBISHI ELECTRIC CORP·Filed 2006·Application pending·0 cites
- 1832US8457451B2Semiconductor optical elementYAMATOYA TAKESHI·Filed 2010·Granted Jun 4, 2013·0 cites·17 claims
- 1932US2010316080A1Semiconductor optical elementMITSUBISHI ELECTRIC CORP·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →