Inventor · disambiguated record
Ryuji Ichikawa
Also filed as: ICHIKAWA RYUJI
4 granted patents·51 citations·filing 1997–2011
71Inventor score
Top patents by PatentIndex Score
4 records- 0191US6041702ACurved surface screen-printing apparatusNIPPON MITSUBISHI OIL CORP·Filed 1999·Granted Mar 28, 2000·45 cites·20 claims
- 0266US8387437B2Weight applying unit for calibration and weight applying method for calibrationYAMAZAKI HITOSHI·Filed 2008·Granted Mar 5, 2013·5 cites·17 claims
- 0349US8887547B2Weight applying unit for calibration and weight applying method for calibrationYAMAZAKI HITOSHI·Filed 2011·Granted Nov 18, 2014·0 cites·22 claims
- 0418US5897253ADevice for making a master plate for printing brailleNEWLONG SEIMITSU KOGYO CO LTD·Filed 1997·Granted Apr 27, 1999·1 cites·26 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →