Inventor · disambiguated record
Yasumasa Tamai
Also filed as: TAMAI YASUMASA
10 granted patents·396 citations·filing 1979–1996
92Inventor score
Files withHITACHI LTD10
Top patents by PatentIndex Score
10 records- 0194US5977515AUnderwater laser processing device including chamber with partitioning wallHITACHI LTD·Filed 1995·Granted Nov 2, 1999·126 cites·16 claims
- 0292US4440339AMethod of repairing housing of control rod driving systemHITACHI LTD·Filed 1981·Granted Apr 3, 1984·39 cites·9 claims
- 0391US5938954ASubmerged laser beam irradiation equipmentHITACHI LTD·Filed 1996·Granted Aug 17, 1999·100 cites·20 claims
- 0491US5305361AMethod of and apparatus for water-jet peeningHITACHI LTD·Filed 1993·Granted Apr 19, 1994·44 cites·12 claims
- 0576US4247037AMethod for welding tubular members of stainless steelHITACHI LTD·Filed 1979·Granted Jan 27, 1981·22 cites·3 claims
- 0671US5494539AMetal member quality improving method by spot weldingHITACHI LTD·Filed 1994·Granted Feb 27, 1996·16 cites·21 claims
- 0759US5674419AMethod for weld repairing of structures in nuclear reactorsHITACHI LTD·Filed 1995·Granted Oct 7, 1997·21 cites·21 claims
- 0859US5022936AMethod for improving property of weld of austenitic stainless steelHITACHI LTD·Filed 1989·Granted Jun 11, 1991·19 cites·4 claims
- 0942US4262517AMethod of correcting distorted pipe endHITACHI LTD·Filed 1979·Granted Apr 21, 1981·5 cites·5 claims
- 1032US4601872AWater sealing device for use in replacing control rod drive housingHITACHI LTD·Filed 1984·Granted Jul 22, 1986·4 cites·10 claims
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