Inventor · disambiguated record
Kazuhiko Osawa
Also filed as: OSAWA KAZUHIKO
6 granted patents·1 pending application·2 citations·filing 2003–2021
66Inventor score
Files withNIHON DEMPA KOGYO CO3OSAWA KAZUHIKO1SAGINOMIYA SEISAKUSHO INC1TAKEDA TSUYOSHI1TAKEMOTO SHINICHIROU1
Top patents by PatentIndex Score
7 records- 0162US8876929B2Filter deviceOSAWA KAZUHIKO·Filed 2010·Granted Nov 4, 2014·2 cites·16 claims
- 0246US10637437B2At-cut crystal element and crystal resonatorNIHON DEMPA KOGYO CO·Filed 2016·Granted Apr 28, 2020·0 cites·9 claims
- 0344US12101075B2Piezoelectric device and manufacturing method of the sameNIHON DEMPA KOGYO CO·Filed 2021·Granted Sep 24, 2024·0 cites·7 claims
- 0443US2015059179A1Structure fixing diaphragm to drive shaft and method for fixing diaphragm to drive shaftSAGINOMIYA SEISAKUSHO INC·Filed 2013·Application pending·0 cites
- 0542US10363521B2Filter device, control valve comprising the filter device, and fuel cell systemTAKEDA TSUYOSHI·Filed 2012·Granted Jul 30, 2019·0 cites·20 claims
- 0633US7126260B2Surface mount crystal unitNIHON DEMPA KOGYO CO·Filed 2003·Granted Oct 24, 2006·0 cites·14 claims
- 0727US9379401B2Fuel cell system and method for operating sameTAKEMOTO SHINICHIROU·Filed 2011·Granted Jun 28, 2016·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →