Inventor · disambiguated record
Ritsu Yamamoto
Also filed as: YAMAMOTO RITSU
15 granted patents·1 pending application·732 citations·filing 1997–2015
95Inventor score
Files withMATSUSHITA ELECTRIC WORKS LTD5PANASONIC IP MAN CO LTD4PANASONIC ELEC WORKS CO LTD2WAKO PURE CHEM IND LTD2YAMAMOTO RITSU2
Top patents by PatentIndex Score
16 records- 0197US7859373B2Contact devicePANASONIC ELEC WORKS CO LTD·Filed 2006·Granted Dec 28, 2010·93 cites·23 claims
- 0297US5892194ASealed contact device with contact gap adjustment capabilityMATSUSHITA ELECTRIC WORKS LTD·Filed 1997·Granted Apr 6, 1999·184 cites·12 claims
- 0396US6911884B2Electromagnetic switching apparatusMATSUSHITA ELECTRIC WORKS LTD·Filed 2002·Granted Jun 28, 2005·104 cites·23 claims
- 0496US6700466B1ContactorMATSUSHITA ELECTRIC WORKS LTD·Filed 2000·Granted Mar 2, 2004·136 cites·16 claims
- 0594US7876183B2Electromagnetic switching devicePANASONIC ELEC WORKS CO LTD·Filed 2006·Granted Jan 25, 2011·42 cites·31 claims
- 0693US9064664B2Contact deviceYAMAMOTO RITSU·Filed 2012·Granted Jun 23, 2015·15 cites·3 claims
- 0791US8448814B2Fit structure of a housingYAMAMOTO RITSU·Filed 2007·Granted May 28, 2013·30 cites·3 claims
- 0890US9269507B2Spring load adjustment structure of contact device and spring load adjustment method of contact devicePANASONIC IP MAN CO LTD·Filed 2013·Granted Feb 23, 2016·23 cites·20 claims
- 0990US8395463B2Contact deviceITO MASAHIRO·Filed 2009·Granted Mar 12, 2013·23 cites·14 claims
- 1088US6075429ASingle pole relay switchMATSUSHITA ELECTRIC WORKS LTD·Filed 1999·Granted Jun 13, 2000·56 cites·12 claims
- 1182US9640355B2Contact apparatusPANASONIC IP MAN CO LTD·Filed 2015·Granted May 2, 2017·3 cites·14 claims
- 1280US9443685B2Contact devicePANASONIC IP MAN CO LTD·Filed 2015·Granted Sep 13, 2016·2 cites·5 claims
- 1375US9640354B2Contact devicePANASONIC IP MAN CO LTD·Filed 2013·Granted May 2, 2017·3 cites·13 claims
- 1459US7046107B2Contact deviceMATSUSHITA ELECTRIC WORKS LTD·Filed 2004·Granted May 16, 2006·10 cites·8 claims
- 1543US6677123B1Process for detecting increased risk of fetal chromosomal abnormalityWAKO PURE CHEM IND LTD·Filed 1999·Granted Jan 13, 2004·8 cites·12 claims
- 1632US2004082006A1Process for detecting increased risk of fetal chromosomal abnormalityWAKO PURE CHEM IND LTD·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →