Inventor · disambiguated record
Ryouta Matsufuji
Also filed as: MATSUFUJI RYOUTA
5 granted patents·36 citations·filing 2004–2012
77Inventor score
Technology areasB41J
Top patents by PatentIndex Score
5 records- 0195US8348407B2Liquid ejection head, liquid-droplet ejection device, and image forming apparatusRICOH CO LTD·Filed 2010·Granted Jan 8, 2013·19 cites·14 claims
- 0285US8777346B2Ink-jet printing method and apparatusSATOU TAKASHI·Filed 2012·Granted Jul 15, 2014·5 cites·5 claims
- 0369US7654652B2Ink jet headRICOH PRINTING SYS LTD·Filed 2005·Granted Feb 2, 2010·3 cites·10 claims
- 0468US7681987B2Inkjet recording headRICOH PRINTING SYS LTD·Filed 2006·Granted Mar 23, 2010·3 cites·9 claims
- 0556US7131718B2Inkjet head and ejection deviceRICOH PRINTING SYS LTD·Filed 2004·Granted Nov 7, 2006·6 cites·22 claims
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