Inventor · disambiguated record
Osamu Hamanaka
Also filed as: HAMANAKA OSAMU
5 granted patents·32 citations·filing 1987–1990
79Inventor score
Technology areasG03G
Files withTOSHIBA KK5
Top patents by PatentIndex Score
5 records- 0176US4931837ARemovable developing unit for an electrostatic copier and locking device thereforTOSHIBA KK·Filed 1989·Granted Jun 5, 1990·15 cites·8 claims
- 0252US4814823AImage forming apparatusTOSHIBA KK·Filed 1987·Granted Mar 21, 1989·6 cites·14 claims
- 0343US4857954AImage forming apparatusTOSHIBA KK·Filed 1988·Granted Aug 15, 1989·4 cites·19 claims
- 0439US4956673AImage forming apparatus with easily removable developing unitsTOSHIBA KK·Filed 1988·Granted Sep 11, 1990·3 cites·10 claims
- 0535US5153646AImage forming apparatus with removable developing meansTOSHIBA KK·Filed 1990·Granted Oct 6, 1992·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →