Inventor · disambiguated record
Isao Masaoka
Also filed as: IMAI KATSUYUKI · MASAOKA ISAO
15 granted patents·370 citations·filing 1978–1992
95Inventor score
Files withHITACHI LTD15
Top patents by PatentIndex Score
15 records- 0192US4718949AMethod of producing a cladding tube for reactor fuelHITACHI LTD·Filed 1986·Granted Jan 12, 1988·35 cites·12 claims
- 0286US4234119AMethod of making a structure immune against stress corrosion crackingHITACHI LTD·Filed 1978·Granted Nov 18, 1980·35 cites·14 claims
- 0386US4223197AMethod of cooling weld in steel piping and apparatus thereforHITACHI LTD·Filed 1978·Granted Sep 16, 1980·37 cites·6 claims
- 0485US4810461AZirconium-based alloy with high corrosion resistanceHITACHI LTD·Filed 1986·Granted Mar 7, 1989·35 cites·8 claims
- 0583US4979995AMember made of nickel base alloy having high resistance to stress corrosion cracking and method of producing sameHITACHI LTD·Filed 1989·Granted Dec 25, 1990·30 cites·20 claims
- 0679US4218604AMethod for welding of austenitic stainless steel pipingHITACHI LTD·Filed 1978·Granted Aug 19, 1980·26 cites·10 claims
- 0775US4842814ANuclear reactor fuel assemblyHITACHI LTD·Filed 1987·Granted Jun 27, 1989·18 cites·27 claims
- 0875US4689091AProcess for producing zirconium-based alloyHITACHI LTD·Filed 1985·Granted Aug 25, 1987·21 cites·19 claims
- 0973US5203984AMonitoring system for plant operation condition and its in-situ electrochemical electrodeHITACHI LTD·Filed 1990·Granted Apr 20, 1993·40 cites·16 claims
- 1072US4348041AButt welded tubular structure of austenite stainless steelHITACHI LTD·Filed 1979·Granted Sep 7, 1982·21 cites·15 claims
- 1171US4678521AProcess for producing zirconium-based alloy and the product thereofHITACHI LTD·Filed 1986·Granted Jul 7, 1987·29 cites·31 claims
- 1267US4664727AZirconium alloy having superior corrosion resistanceHITACHI LTD·Filed 1983·Granted May 12, 1987·15 cites·15 claims
- 1366US4512820AIn-pile parts for nuclear reactor and method of heat treatment thereforHITACHI LTD·Filed 1981·Granted Apr 23, 1985·13 cites·22 claims
- 1447US5316597AA nuclear reactor comprising a reactor vessel and structural members made of an austenitic stainless steel having superior resistance to irradiation-induced segregationHITACHI LTD·Filed 1992·Granted May 31, 1994·12 cites·17 claims
- 1530US4560407AAlloy for use in a radioactive ray environment and reactor core membersHITACHI LTD·Filed 1982·Granted Dec 24, 1985·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →