Inventor · disambiguated record
Masao Totsuka
Also filed as: TOTSUKA MASAO · TOTSUKA MASO
10 granted patents·466 citations·filing 1976–1989
92Inventor score
Technology areasG03F
Files withCANON KK10
Top patents by PatentIndex Score
10 records- 0197US4814829AProjection exposure apparatusCANON KK·Filed 1987·Granted Mar 21, 1989·162 cites·43 claims
- 0294US4062623ADevice for observing an objectCANON KK·Filed 1976·Granted Dec 13, 1977·68 cites·6 claims
- 0393US4878086AFlat panel display device and manufacturing of the sameCANON KK·Filed 1989·Granted Oct 31, 1989·78 cites·1 claims
- 0486US4834540AProjection exposure apparatusCANON KK·Filed 1987·Granted May 30, 1989·44 cites·16 claims
- 0586US4814830AFlat panel display device and manufacturing of the sameCANON KK·Filed 1988·Granted Mar 21, 1989·46 cites·9 claims
- 0678US4315201AAlignment apparatus for mask and wafer used in manufacturing semiconductor circuit elementsCANON KK·Filed 1978·Granted Feb 9, 1982·24 cites·6 claims
- 0761US4576475AContacting method and apparatus in contact copyingCANON KK·Filed 1985·Granted Mar 18, 1986·15 cites·2 claims
- 0855US4651009AContact exposure apparatusCANON KK·Filed 1985·Granted Mar 17, 1987·12 cites·10 claims
- 0948US4611122ASignal detection apparatus with plural elongate beams correspondingCANON KK·Filed 1983·Granted Sep 9, 1986·10 cites·15 claims
- 1044US4659228AAligning apparatusCANON KK·Filed 1985·Granted Apr 21, 1987·7 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →