Patents/Inventors

Katsuhiko Oba

KanagawaJP4 patents

5 Patents

US122711362025
Image Forming Apparatus Including a Display Unit for Displaying Information About a Procedure for Replenishing Developer
Canon Kabushiki Kaisha
0 cites
US121471902024
Image Forming Apparatus
Canon Kabushiki Kaisha
0 cites
US117969472023
Image Forming Apparatus Including a Display Unit for Displaying Information About a Procedure for Replenishing Developer
Canon Kabushiki Kaisha
0 cites
US117549462023
Image Forming Apparatus
Canon Kabushiki Kaisha
0 cites
US115861432023
Image Forming Apparatus
Canon Kabushiki Kaisha
0 cites