Inventor · disambiguated record
Isao Shiojima
Also filed as: SHIOJIMA ISAO
5 granted patents·63 citations·filing 1987–1990
81Inventor score
Files withRICOH KK5
Top patents by PatentIndex Score
5 records- 0179US4847385ACyanine dyesRICOH KK·Filed 1987·Granted Jul 11, 1989·26 cites·8 claims
- 0263US5084593ALeuco dyes and recording material employing the sameRICOH KK·Filed 1990·Granted Jan 28, 1992·12 cites·9 claims
- 0363US5008238ALeuco dyes and recording material employing the sameRICOH KK·Filed 1989·Granted Apr 16, 1991·11 cites·14 claims
- 0462US5057154ALeuco dyes and recording material employing the sameRICOH KK·Filed 1990·Granted Oct 15, 1991·10 cites·18 claims
- 0546US4939117ALeuco dyes and recording material employing the sameRICOH KK·Filed 1988·Granted Jul 3, 1990·4 cites·14 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →