Inventor · disambiguated record

Mituyoshi Koizumi

Also filed as: KOIZUMI MITUYOSHI

2 granted patents·84 citations·filing 1977–1980

67Inventor score

Technology areasG03F

Files withHITACHI LTD2

Top patents by PatentIndex Score

2 records

0191US4153371AMethod and apparatus for reduction-projection type mask alignmentHITACHI LTD·Filed 1977·Granted May 8, 1979·55 cites·9 claims
0275US4362389AMethod and apparatus for projection type mask alignmentHITACHI LTD·Filed 1980·Granted Dec 7, 1982·29 cites·7 claims

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