Inventor · disambiguated record
Yoshifumi Hishikawa
Also filed as: HISHIKAWA YOSHIFUMI
4 granted patents·72 citations·filing 1998–2020
70Inventor score
Top patents by PatentIndex Score
4 records- 0185US10523317B2Measurement system and measurement methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Granted Dec 31, 2019·6 cites·13 claims
- 0282US6206583B1Optical fiber fusion splicer with communication deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1998·Granted Mar 27, 2001·66 cites·2 claims
- 0349US11965801B2Measurement systemSUMITOMO ELECTRIC OPTIFRONTIER CO LTD·Filed 2019·Granted Apr 23, 2024·0 cites·8 claims
- 0441US12111224B2Optical transmission path inspecting system, and optical transmission path inspecting deviceSUMITOMO ELECTRIC OPTIFRONTIER CO LTD·Filed 2020·Granted Oct 8, 2024·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →