Inventor · disambiguated record
Tadao Yoshizawa
Also filed as: YOSHIZAWA TADAO
5 granted patents·186 citations·filing 1976–1981
84Inventor score
Files withKUBOTA LTD5
Top patents by PatentIndex Score
5 records- 0186US4093280ASynthetic resinous pipe joint made up in one-piece with a metallic male screwKUBOTA LTD·Filed 1976·Granted Jun 6, 1978·76 cites·16 claims
- 0280US4135961AMethod of molding a socket part on a synthetic resinous pipe endKUBOTA LTD·Filed 1976·Granted Jan 23, 1979·38 cites·13 claims
- 0376US4275909AFlexible plastic pipe jointKUBOTA LTD·Filed 1978·Granted Jun 30, 1981·37 cites·10 claims
- 0469US4279853AMethod of forming a socket end on a plastic pipe and a molding device for use of the methodKUBOTA LTD·Filed 1979·Granted Jul 21, 1981·22 cites·3 claims
- 0548US4412802AMolding device for forming a socket end on a plastic pipeKUBOTA LTD·Filed 1981·Granted Nov 1, 1983·13 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →