Inventor · disambiguated record
Tatsumi Osuka
Also filed as: OSUKA TATSUMI · SUZUKI MOTOAKI
5 granted patents·38 citations·filing 1974–1980
78Inventor score
Files withNIPPON KOKAN KK5
Top patents by PatentIndex Score
5 records- 0162US4341938AMethod and apparatus for seam-welding steel pipesNIPPON KOKAN KK·Filed 1980·Granted Jul 27, 1982·16 cites·13 claims
- 0256US4107503AMethod for eliminating residual magnetism in pipe-blank for welded steel pipe longitudinally seam-welded from insideNIPPON KOKAN KK·Filed 1977·Granted Aug 15, 1978·10 cites·7 claims
- 0347US3945858AMethod of manufacturing steel for low temperature servicesNIPPON KOKAN KK·Filed 1974·Granted Mar 23, 1976·6 cites·2 claims
- 0435US4238659APreventing magnetization of pipe blank in GMA weldingNIPPON KOKAN KK·Filed 1979·Granted Dec 9, 1980·4 cites·3 claims
- 0530US4110589AMethod for longitudinally seam-welding pipe-blank for welded steel pipe from the inside along a grooveNIPPON KOKAN KK·Filed 1977·Granted Aug 29, 1978·2 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Tatsumi Osuka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →