Inventor · disambiguated record
Mitsuo Ooyama
Also filed as: OOYAMA MITSUO
12 granted patents·315 citations·filing 1983–1999
93Inventor score
Files withHITACHI LTD12
Top patents by PatentIndex Score
12 records- 0183US4820928ALithography apparatusHITACHI LTD·Filed 1987·Granted Apr 11, 1989·33 cites·6 claims
- 0278US6094647APresearch type document search method and apparatusHITACHI LTD·Filed 1997·Granted Jul 25, 2000·66 cites·10 claims
- 0377US5519857AHierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatusHITACHI LTD·Filed 1992·Granted May 21, 1996·59 cites·8 claims
- 0476US4692579AElectron beam lithography apparatusHITACHI LTD·Filed 1985·Granted Sep 8, 1987·21 cites·7 claims
- 0570US4943729AElectron beam lithography systemHITACHI LTD·Filed 1988·Granted Jul 24, 1990·15 cites·5 claims
- 0667US5168533AHierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatusHITACHI LTD·Filed 1990·Granted Dec 1, 1992·37 cites·56 claims
- 0763US4626838AFilled shaped generating apparatusHITACHI LTD·Filed 1983·Granted Dec 2, 1986·36 cites·8 claims
- 0857US4829444ACharged particle beam lithography systemHITACHI LTD·Filed 1986·Granted May 9, 1989·9 cites·3 claims
- 0955US4580236AGraphic display apparatus with a vector generating circuitHITACHI LTD·Filed 1983·Granted Apr 1, 1986·15 cites·3 claims
- 1044US5903442AHard disk drive and hard disk apparatus having bus and its installing methodHITACHI LTD·Filed 1996·Granted May 11, 1999·15 cites·46 claims
- 1139US4758973AApparatus for processing floating-point data having exponents of a variable lengthHITACHI LTD·Filed 1985·Granted Jul 19, 1988·7 cites·6 claims
- 1231US6043988AHard disk drive and hard disk apparatus having bus and its installing methodHITACHI LTD·Filed 1999·Granted Mar 28, 2000·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →