Inventor · disambiguated record
Shizuo Yokoyama
Also filed as: YOKOYAMA SHIZUO
4 granted patents·62 citations·filing 1974–1995
77Inventor score
Files withRICOH KK4
Top patents by PatentIndex Score
4 records- 0178US4661822AInk jet printerRICOH KK·Filed 1986·Granted Apr 28, 1987·33 cites·9 claims
- 0260US4630814ASheet feed apparatus for printerRICOH KK·Filed 1984·Granted Dec 23, 1986·11 cites·15 claims
- 0350US3946666AComma printing mechanismRICOH KK·Filed 1974·Granted Mar 30, 1976·9 cites·4 claims
- 0438US5694226AFacsimile apparatusRICOH KK·Filed 1995·Granted Dec 2, 1997·9 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →