Inventor · disambiguated record
Katsuhisa Usami
Also filed as: USAMI KATSUHISA
8 granted patents·309 citations·filing 1977–2000
88Inventor score
Files withHITACHI LTD8
Top patents by PatentIndex Score
8 records- 0195US5294811AThin film semiconductor device having inverted stagger structure, and device having such semiconductor deviceHITACHI LTD·Filed 1991·Granted Mar 15, 1994·170 cites·24 claims
- 0290US4365264ASemiconductor device with high density low temperature deposited Siw Nx Hy Oz passivating layerHITACHI LTD·Filed 1981·Granted Dec 21, 1982·91 cites·5 claims
- 0368US5898177AElectron microscopeHITACHI LTD·Filed 1997·Granted Apr 27, 1999·20 cites·8 claims
- 0461US6319622B1Magnetic headHITACHI LTD·Filed 2000·Granted Nov 20, 2001·3 cites·4 claims
- 0556US4135088ACharged-particle analyzerHITACHI LTD·Filed 1977·Granted Jan 16, 1979·8 cites·6 claims
- 0652US4126782AElectrostatic charged-particle analyzerHITACHI LTD·Filed 1977·Granted Nov 21, 1978·6 cites·6 claims
- 0745US6120919AMagnetic headHITACHI LTD·Filed 1998·Granted Sep 19, 2000·5 cites·25 claims
- 0836US4561891APowdery silicon carbide composition for sinteringHITACHI LTD·Filed 1983·Granted Dec 31, 1985·6 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →