Inventor · disambiguated record
Yoshifumi Kawakatsu
Also filed as: KAWAKATSU YOSHIFUMI
4 granted patents·15 citations·filing 1975–1988
70Inventor score
Top patents by PatentIndex Score
4 records- 0153US4522801AProcess for producing carbon fiber or graphite fiberTOHO BESLON CO·Filed 1983·Granted Jun 11, 1985·8 cites·28 claims
- 0237US4659623AAcrylic fibers for producing preoxidized fibersTOHO BESLON CO·Filed 1984·Granted Apr 21, 1987·3 cites·10 claims
- 0333US4898700AProcess for producing preoxidized fibers from acrylic fibersTOHO RAYON KK·Filed 1988·Granted Feb 6, 1990·3 cites·27 claims
- 0429US4026926AProcess for the preparation of methallyl sulfonic acid and its saltsTOHO BESLON CO·Filed 1975·Granted May 31, 1977·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →