Inventor · disambiguated record
Masaharu Oyama
Also filed as: OYAMA MASAHARU
10 granted patents·52 citations·filing 1990–2004
88Inventor score
Technology areasB41J
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD10
Top patents by PatentIndex Score
10 records- 0168US6793311B2Ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Sep 21, 2004·12 cites·30 claims
- 0252US7055922B2Applying voltages to an ink jet printheadMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jun 6, 2006·4 cites·8 claims
- 0352US6736479B2Ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 18, 2004·5 cites·11 claims
- 0451US6783212B2Ink jet head and ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 31, 2004·4 cites·38 claims
- 0545US6428149B1Electrostatic ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 6, 2002·3 cites·20 claims
- 0644US6830302B2Waveform generating circuit, inkjet head driving circuit and inkjet recording deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 14, 2004·4 cites·7 claims
- 0739US5159355AInk jet apparatus with voltage control unit controlling a voltage source to apply AC preheating voltage and DC ink-boiling voltageMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Oct 27, 1992·6 cites·4 claims
- 0838US5790142AInk jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Aug 4, 1998·6 cites·16 claims
- 0938US5657062AInk discharging deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Aug 12, 1997·6 cites·13 claims
- 1035US6513893B2Head drive unit and driving methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Feb 4, 2003·2 cites·14 claims
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