Inventor · disambiguated record
Keizo Oka
Also filed as: OKA KEIZO
3 granted patents·5 citations·filing 1989–1992
56Inventor score
Top patents by PatentIndex Score
3 records- 0128US5290497AProcess for producing molded articles of polyimide precursorCHISSO CORP·Filed 1992·Granted Mar 1, 1994·4 cites·14 claims
- 0226US5064631AProcess for preparation of aluminum borate whiskerSHIKOKU CHEM·Filed 1989·Granted Nov 12, 1991·1 cites·1 claims
- 0324US5061468AProcess for preparation of aluminum borate whiskerSHIKOKU CHEM·Filed 1989·Granted Oct 29, 1991·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →