Inventor · disambiguated record
Katsufumi Kumano
Also filed as: KUMANO KATSUFUMI
6 granted patents·247 citations·filing 1991–2006
86Inventor score
Top patents by PatentIndex Score
6 records- 0194US5422175AVoid-containing composite film of polyester typeTOYO BOSEKI·Filed 1993·Granted Jun 6, 1995·118 cites·28 claims
- 0289US5084334AVoid-containing polyester-type film, and its laminateTOYO BOSEKI·Filed 1991·Granted Jan 28, 1992·62 cites·17 claims
- 0381US7715760B2Charging device, and process cartridge and image forming apparatus using the sameRICOH KK·Filed 2006·Granted May 11, 2010·6 cites·13 claims
- 0480US6323308B1Aliphatic polyester filmTOYO BOSEKI·Filed 2000·Granted Nov 27, 2001·44 cites·16 claims
- 0571US6649260B2Optical coating filmTOYO BOSEKI·Filed 2001·Granted Nov 18, 2003·13 cites·11 claims
- 0662US7198857B2Polyester film for formingTOYO BOSEKI·Filed 2004·Granted Apr 3, 2007·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →