Inventor · disambiguated record
Masatsugu Oshima
Also filed as: OSHIMA MASATSUGU
5 granted patents·41 citations·filing 1991–2002
78Inventor score
Top patents by PatentIndex Score
5 records- 0160US5294859ASurface acoustic wave filter deviceYAMANOCHI KAZUHIKO·Filed 1993·Granted Mar 15, 1994·17 cites·9 claims
- 0257US7184631B2Optical deviceNGK INSULATORS LTD·Filed 2001·Granted Feb 27, 2007·6 cites·14 claims
- 0348US5710529ASurface acoustic wave filer device having a cascade filter structure and a piezoelectric substrate having mirror-polished surfacesNGK INSULATORS LTD·Filed 1995·Granted Jan 20, 1998·11 cites·32 claims
- 0444US6961493B2Optical deviceNGK INSULATORS LTD·Filed 2002·Granted Nov 1, 2005·1 cites·13 claims
- 0536US5273791AMethod of improving the corrosion resistance of a metalNGK INSULATORS LTD·Filed 1991·Granted Dec 28, 1993·6 cites·7 claims
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