Inventor · disambiguated record
Yoshikuni Tohyama
Also filed as: SAGARA SEIJI · TOHYAMA YOSHIKUNI
14 granted patents·252 citations·filing 1975–1989
93Inventor score
Files withCANON KK14
Top patents by PatentIndex Score
14 records- 0193US4168901ADeveloper housing sealing device for electrophotographyCANON KK·Filed 1977·Granted Sep 25, 1979·39 cites·14 claims
- 0293US4129377AVariable magnification copying apparatusCANON KK·Filed 1976·Granted Dec 12, 1978·37 cites·16 claims
- 0390US4302098APrinting apparatusCANON KK·Filed 1979·Granted Nov 24, 1981·31 cites·52 claims
- 0488US4916490AImage forming apparatus comprising a plurality of developing devicesCANON KK·Filed 1989·Granted Apr 10, 1990·32 cites·22 claims
- 0582US4544262ATransfer station alignment deviceCANON KK·Filed 1983·Granted Oct 1, 1985·23 cites·7 claims
- 0679US4243311AImage forming apparatusCANON KK·Filed 1978·Granted Jan 6, 1981·10 cites·19 claims
- 0779US4000942ATransfer medium separating deviceCANON KK·Filed 1975·Granted Jan 4, 1977·32 cites·5 claims
- 0862US4323308ACopy magnification modifying apparatusCANON KK·Filed 1980·Granted Apr 6, 1982·7 cites·16 claims
- 0958US4163549ASeparator device for transfer mediumCANON KK·Filed 1977·Granted Aug 7, 1979·10 cites·11 claims
- 1057US4803520AElectrophotographic apparatus for making superposed imagesCANON KK·Filed 1985·Granted Feb 7, 1989·10 cites·53 claims
- 1153US4845528ADouble-side image forming apparatusCANON KK·Filed 1987·Granted Jul 4, 1989·9 cites·10 claims
- 1250US4375331ASlit exposure device with white reflecting memberCANON KK·Filed 1980·Granted Mar 1, 1983·6 cites·11 claims
- 1350US4072211ADriving device for a moving bodyCANON KK·Filed 1976·Granted Feb 7, 1978·3 cites·4 claims
- 1435US4402595AScanning type image formation apparatusCANON KK·Filed 1981·Granted Sep 6, 1983·3 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →