Inventor · disambiguated record
Ryozo Hiraga
Also filed as: HIRAGA RYOZO · SUZKI AKIYOSHI
17 granted patents·887 citations·filing 1974–1987
95Inventor score
Files withCANON KK17
Top patents by PatentIndex Score
17 records- 0198US4789294AWafer handling apparatus and methodCANON KK·Filed 1986·Granted Dec 6, 1988·593 cites·9 claims
- 0287US3931789AVapor deposition apparatusCANON KK·Filed 1974·Granted Jan 13, 1976·44 cites·8 claims
- 0378US4315201AAlignment apparatus for mask and wafer used in manufacturing semiconductor circuit elementsCANON KK·Filed 1978·Granted Feb 9, 1982·24 cites·6 claims
- 0477US4301363AAlignment deviceCANON KK·Filed 1979·Granted Nov 17, 1981·23 cites·4 claims
- 0576US4262208APhoto-electrical detecting apparatusCANON KK·Filed 1979·Granted Apr 14, 1981·30 cites·8 claims
- 0676US3944921ALogic level test probe with grated oscillatorCANON KK·Filed 1974·Granted Mar 16, 1976·21 cites·12 claims
- 0774US4440493APrinting apparatusCANON KK·Filed 1983·Granted Apr 3, 1984·23 cites·5 claims
- 0870US4202627APhotoelectric detecting apparatusCANON KK·Filed 1978·Granted May 13, 1980·19 cites·3 claims
- 0961US4545684AAlignment mark detecting apparatus and methodCANON KK·Filed 1982·Granted Oct 8, 1985·17 cites·11 claims
- 1061US4504148ASystem for detecting a signal for aligning two bodies and signal _processing methodCANON KK·Filed 1982·Granted Mar 12, 1985·16 cites·8 claims
- 1155US4553845ADevice for and method of aligning two bodiesCANON KK·Filed 1982·Granted Nov 19, 1985·13 cites·12 claims
- 1255US4275306AAlignment apparatusCANON KK·Filed 1979·Granted Jun 23, 1981·15 cites·1 claims
- 1350US4515481AApparatus for processing a signal for aligningCANON KK·Filed 1982·Granted May 7, 1985·16 cites·9 claims
- 1446US4806773AWafer position detecting method and apparatusCANON KK·Filed 1987·Granted Feb 21, 1989·14 cites·8 claims
- 1541US4530604AMethod of aligning a mask and a wafer for manufacturing semiconductor circuit elementsCANON KK·Filed 1983·Granted Jul 23, 1985·7 cites·1 claims
- 1641US4278893AAlignment apparatusCANON KK·Filed 1979·Granted Jul 14, 1981·8 cites·1 claims
- 1730US4487505AApparatus for processing a signal for alignmentCANON KK·Filed 1982·Granted Dec 11, 1984·4 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →