Inventor · disambiguated record
Shoichi Ohkubo
Also filed as: OHKUBO SHOICHI · YOKOYAMA TAKASHI
5 granted patents·54 citations·filing 1975–1977
80Inventor score
Files withMITSUBISHI CHEM IND5
Top patents by PatentIndex Score
5 records- 0156US4220729AFlame-retardant isocyanate-based foams and method of producing the sameMITSUBISHI CHEM IND·Filed 1977·Granted Sep 2, 1980·13 cites·50 claims
- 0255US4514525AProcess for preparing smoke-retardant polyisocyanurate foamMITSUBISHI CHEM IND·Filed 1976·Granted Apr 30, 1985·11 cites·12 claims
- 0354US4072636AProcess for preparing smoke-retardant polyisocyanurate foamMITSUBISHI CHEM IND·Filed 1976·Granted Feb 7, 1978·13 cites·13 claims
- 0453US4055522AProcess for producing an isocyanate-based polymer having reduced smoke generationMITSUBISHI CHEM IND·Filed 1975·Granted Oct 25, 1977·12 cites·11 claims
- 0537US4133781ASmoke-retardant polyisocyanurate foamMITSUBISHI CHEM IND·Filed 1977·Granted Jan 9, 1979·5 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →