Inventor · disambiguated record
Masaaki Hayami
Also filed as: HAYAMI MASAAKI
6 granted patents·168 citations·filing 1976–1992
85Inventor score
Top patents by PatentIndex Score
6 records- 0196US4380629AStyryl-like compounds showing a color-developing and bleaching behavior with improved stability and prolonged lifetimeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Apr 19, 1983·65 cites·9 claims
- 0289US4147862AMethod of preparing styryl-like compoundsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1976·Granted Apr 3, 1979·35 cites·7 claims
- 0385US4314058AIndolins styryl-like compoundsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Feb 2, 1982·39 cites·40 claims
- 0483US4139274AApparatus for changing colorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1976·Granted Feb 13, 1979·12 cites·3 claims
- 0559US4771060ANovel skin-whitening agentTEIKOKU SEIYAKU KK·Filed 1986·Granted Sep 13, 1988·11 cites·5 claims
- 0644US5252371ARewritable photochromic optical diskPIONEER ELECTRONIC CORP·Filed 1992·Granted Oct 12, 1993·6 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →