Inventor · disambiguated record
Keishi Ohsawa
Also filed as: OHSAWA KEISHI
6 granted patents·100 citations·filing 1984–1997
83Inventor score
Technology areasG03G
Files withCANON KK6
Top patents by PatentIndex Score
6 records- 0192US4739370ACleaning deviceCANON KK·Filed 1984·Granted Apr 19, 1988·43 cites·25 claims
- 0278US5563690ADeveloping sleeve having an outer ceramic layer developing device for developing electrostatic latent images, and image-forming apparatusCANON KK·Filed 1994·Granted Oct 8, 1996·24 cites·101 claims
- 0371US5270484APowder conveying deviceCANON KK·Filed 1991·Granted Dec 14, 1993·16 cites·8 claims
- 0462US5414497APowder conveying deviceCANON KK·Filed 1993·Granted May 9, 1995·11 cites·5 claims
- 0542US5890038AImage forming apparatus in which carrying force for a mixing toner by a toner carrying member is made smallCANON KK·Filed 1996·Granted Mar 30, 1999·6 cites·17 claims
- 0627US5911093AMulti-color image forming apparatus capable of preventing contamination of re-chargerCANON KK·Filed 1997·Granted Jun 8, 1999·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →