Inventor · disambiguated record
Tsutomu Kamada
Also filed as: KAMADA Tsutomu
5 granted patents·2 pending applications·74 citations·filing 2015–2019
79Inventor score
Technology areasG02B
Files withSEI OPTIFRONTIER CO LTD4SUMITOMO ELECTRIC INDUSTRIES2JAPAN COMMUNICATION ACCESSORIES MFG CO LTD1
Top patents by PatentIndex Score
7 records- 0194US10539745B2Optical connectorSEI OPTIFRONTIER CO LTD·Filed 2015·Granted Jan 21, 2020·52 cites·4 claims
- 0289US10641971B2Optical connectorSEI OPTIFRONTIER CO LTD·Filed 2017·Granted May 5, 2020·8 cites·2 claims
- 0388US10114179B2Optical connector, pin keeper, pin insertion jig, expansion member, and pin insertion toolSEI OPTIFRONTIER CO LTD·Filed 2015·Granted Oct 30, 2018·9 cites·12 claims
- 0474US9958620B2Optical fiber with connectorSEI OPTIFRONTIER CO LTD·Filed 2015·Granted May 1, 2018·3 cites·7 claims
- 0571US11215763B2Elastic member and optical connectorJAPAN COMMUNICATION ACCESSORIES MFG CO LTD·Filed 2019·Granted Jan 4, 2022·2 cites·9 claims
- 0636US2019196117A1Optical connector ferrule and optical connectorSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Application pending·0 cites
- 0736US2019179087A1Optical connector ferrule and optical connectorSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Tsutomu Kamada files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →