Inventor · disambiguated record
Yoshiyasu Morita
Also filed as: MORITA YOSHIYASU
5 granted patents·306 citations·filing 1982–1991
85Inventor score
Files withSUMITOMO METAL IND5
Top patents by PatentIndex Score
5 records- 0194US4630849AOil well pipe jointSUMITOMO METAL IND·Filed 1985·Granted Dec 23, 1986·185 cites·10 claims
- 0284US4474651AOil well casing and tubing joint and production of sameSUMITOMO METAL IND·Filed 1982·Granted Oct 2, 1984·56 cites·22 claims
- 0374US4947924AMetal-ceramic composite and method of producing the sameSUMITOMO METAL IND·Filed 1989·Granted Aug 14, 1990·14 cites·3 claims
- 0466US4871194AOil well pipe joint and manufacturing method thereforSUMITOMO METAL IND·Filed 1986·Granted Oct 3, 1989·36 cites·20 claims
- 0559US5154984AMetal-ceramic compositeSUMITOMO METAL IND·Filed 1991·Granted Oct 13, 1992·15 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →