Inventor · disambiguated record
Noriyuki Ohnaka
Also filed as: OHNAKA NORIYUKI
15 granted patents·372 citations·filing 1988–1996
95Inventor score
Files withHITACHI LTD15
Top patents by PatentIndex Score
15 records- 0182US5209645ACeramics-coated heat resisting alloy memberHITACHI LTD·Filed 1990·Granted May 11, 1993·58 cites·35 claims
- 0278US5514477ACorrosion-resistant laminate which consists of a metal of a single mass number deposited on a substrateHITACHI LTD·Filed 1993·Granted May 7, 1996·21 cites·6 claims
- 0377US5519330AMethod and apparatus for measuring degree of corrosion of metal materialsHITACHI LTD·Filed 1993·Granted May 21, 1996·44 cites·56 claims
- 0473US5087181ASliding structure such as compressor or the likeHITACHI LTD·Filed 1990·Granted Feb 11, 1992·30 cites·27 claims
- 0572US5398268ANuclear power plant having a water chemistry control system for a primary cooling system thereof and an operation method thereofHITACHI LTD·Filed 1992·Granted Mar 14, 1995·18 cites·23 claims
- 0672US5221859ALead frame for semiconductor deviceHITACHI LTD·Filed 1991·Granted Jun 22, 1993·50 cites·4 claims
- 0768US5729409AMagnetic disk device having a corrosion resistant magnetoresistive headHITACHI LTD·Filed 1996·Granted Mar 17, 1998·17 cites·4 claims
- 0867US5223211AZirconium based alloy plate of low irradiation growth, method of manufacturing the same, and use of the sameHITACHI LTD·Filed 1991·Granted Jun 29, 1993·29 cites·30 claims
- 0960US4937038ASolution quantitative analysis apparatus, quantitative analysis methods, and nuclear reactor water quality control systemHITACHI LTD·Filed 1988·Granted Jun 26, 1990·17 cites·25 claims
- 1053US5892805ABoiling water reactor and its operating methodHITACHI LTD·Filed 1996·Granted Apr 6, 1999·18 cites·17 claims
- 1153US5242264AMachine on ground provided with heat resistant wall used for isolating from environment and heat resistant wall used thereforHITACHI LTD·Filed 1990·Granted Sep 7, 1993·16 cites·12 claims
- 1252US5579354AMethod of measuring a corrosion potential, method of simulating potential characteristics of a reaction rate, and plant monitoring system adopting themHITACHI LTD·Filed 1994·Granted Nov 26, 1996·21 cites·14 claims
- 1348US5316633AMethod and apparatus for measuring sensitization of structural membersHITACHI LTD·Filed 1992·Granted May 31, 1994·12 cites·18 claims
- 1447US5901071AMethod of evaluating corrosion resistance of metal material, method of designing alloy of high corrosion resistance, method of diagnosing corroded state of metal material, and method of operating plantHITACHI LTD·Filed 1995·Granted May 4, 1999·14 cites·4 claims
- 1538US5186798ASolution quantitative analysis apparatus, quantitative analysis methods, and nuclear reactor water quality control systemHITACHI LTD·Filed 1990·Granted Feb 16, 1993·7 cites·20 claims
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