Inventor · disambiguated record
Yohei Ichikawa
Also filed as: ICHIKAWA YOHEI
8 granted patents·79 citations·filing 1998–2021
84Inventor score
Files withTAIYO YUDEN KK3MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2FELICA NETWORKS INC1ICHIKAWA YOHEI1PANASONIC CORP1
Top patents by PatentIndex Score
8 records- 0195US8849362B1Communication moduleTAIYO YUDEN KK·Filed 2014·Granted Sep 30, 2014·26 cites·15 claims
- 0269US7978467B2Key sheet, press switch and electronic device provided with the press switchPANASONIC CORP·Filed 2007·Granted Jul 12, 2011·6 cites·15 claims
- 0368US5986503APower amplifier with an idle current trimmed and a method of trimming the power amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Nov 16, 1999·29 cites·10 claims
- 0459US9894816B2Circuit moduleTAIYO YUDEN KK·Filed 2015·Granted Feb 13, 2018·1 cites·4 claims
- 0559US8071902B2Push-button switch and electronic apparatus having the sameICHIKAWA YOHEI·Filed 2006·Granted Dec 6, 2011·4 cites·12 claims
- 0651US12277198B2Information processing device, information processing method, and information processing systemFELICA NETWORKS INC·Filed 2021·Granted Apr 15, 2025·0 cites·18 claims
- 0746US9160825B2Communication moduleTAIYO YUDEN KK·Filed 2014·Granted Oct 13, 2015·0 cites·8 claims
- 0843US5990736AHigh frequency amplifier with a guard circuit and a radio wave transmission apparatus including the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Nov 23, 1999·13 cites·25 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →