Inventor · disambiguated record
Ryokichi Matsumoto
Also filed as: MATSUMOTO RYOKICHI
16 granted patents·4 pending applications·53 citations·filing 2000–2021
89Inventor score
Files withFUJIKURA LTD20
Top patents by PatentIndex Score
20 records- 0195US9817294B2Optical modulation deviceFUJIKURA LTD·Filed 2015·Granted Nov 14, 2017·12 cites·22 claims
- 0292US9423667B2High-frequency circuit and optical modulatorFUJIKURA LTD·Filed 2015·Granted Aug 23, 2016·7 cites·13 claims
- 0378US6463195B1Method of manufacturing polarization-maintaining optical fiber couplerFUJIKURA LTD·Filed 2000·Granted Oct 8, 2002·21 cites·13 claims
- 0477US11703647B2Optical fiber securing structure and laser deviceFUJIKURA LTD·Filed 2020·Granted Jul 18, 2023·1 cites·9 claims
- 0576US10845541B2Cladding mode light removal structure and laser apparatusFUJIKURA LTD·Filed 2018·Granted Nov 24, 2020·2 cites·8 claims
- 0665US7050672B1Polarization-maintaining optical fiber and polarization-maintaining optical fiber componentFUJIKURA LTD·Filed 2000·Granted May 23, 2006·10 cites·7 claims
- 0764US12341320B2Optical combiner and laser apparatusFUJIKURA LTD·Filed 2021·Granted Jun 24, 2025·0 cites·12 claims
- 0856US11955777B2Optical combiner and laser apparatusFUJIKURA LTD·Filed 2020·Granted Apr 9, 2024·0 cites·13 claims
- 0954US10833470B2Optical fiber and fiber laserFUJIKURA LTD·Filed 2017·Granted Nov 10, 2020·0 cites·17 claims
- 1053US2022255287A1Fiber laser, and method for outputting laser lightFUJIKURA LTD·Filed 2020·Application pending·0 cites
- 1151US11808982B2Optical combiner, laser device, and method for manufacturing optical combinerFUJIKURA LTD·Filed 2020·Granted Nov 7, 2023·0 cites·9 claims
- 1251US11422307B2Cladding mode stripperFUJIKURA LTD·Filed 2018·Granted Aug 23, 2022·0 cites·12 claims
- 1350US10168483B2Method for connecting optical waveguide and optical fiber, semiconductor optical device, and method for manufacturing semiconductor optical device having optical fiber connected theretoFUJIKURA LTD·Filed 2017·Granted Jan 1, 2019·0 cites·10 claims
- 1448US10879666B2Optical fiber and fiber laserFUJIKURA LTD·Filed 2017·Granted Dec 29, 2020·0 cites·17 claims
- 1544US2021199891A1Optical device and laser apparatusFUJIKURA LTD·Filed 2019·Application pending·0 cites
- 1641US10466417B2Optical fiber fusion splice structure and method of manufacturing laser apparatusFUJIKURA LTD·Filed 2017·Granted Nov 5, 2019·0 cites·14 claims
- 1741US2021103101A1Combiner and laser deviceFUJIKURA LTD·Filed 2018·Application pending·0 cites
- 1840US9857533B2Optical waveguide element, light-receiving device, optical communication device, optical modulator, optical resonator, and method for manufacturing optical waveguide elementFUJIKURA LTD·Filed 2017·Granted Jan 2, 2018·0 cites·14 claims
- 1939US7450802B2Optical fiber coupler and optical fiber thereforFUJIKURA LTD·Filed 2004·Granted Nov 11, 2008·0 cites·8 claims
- 2037US2016306120A1Production method for optical devicesFUJIKURA LTD·Filed 2016·Application pending·0 cites
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