Inventor · disambiguated record
Masachika Ohyama
Also filed as: OHYAMA MASACHIKA
5 granted patents·38 citations·filing 1986–1992
79Inventor score
Top patents by PatentIndex Score
5 records- 0153US4769576AMetal vapor discharge lampUSHIO ELECTRIC INC·Filed 1986·Granted Sep 6, 1988·9 cites·3 claims
- 0250US5107178AMetal vapor discharge lamp filled with bismuth, mercury, a rare gas, iron and a halogenUSHIO ELECTRIC INC·Filed 1991·Granted Apr 21, 1992·10 cites·2 claims
- 0344US5394059AMetallic vapor discharge lamp and a method for curing paints and inks therewithOSHIODENKI KABUSHIKI KAISHA·Filed 1992·Granted Feb 28, 1995·9 cites·4 claims
- 0444US4745335AMagnesium vapor discharge lampUSHIO ELECTRIC INC·Filed 1986·Granted May 17, 1988·6 cites·7 claims
- 0535US4704346AProcess for the exposure of semiconductor waferUSHIO ELECTRIC INC·Filed 1986·Granted Nov 3, 1987·4 cites·3 claims
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