DI

Daisuke Ishizuka

FI Fujifilm Business Innovation: 3 patents #54 of 391Top 15%
Brother Kogyo: 2 patents #97 of 394Top 25%
Overall (2025): #24,901 of 469,880Top 6%
5
Patents 2025

Issued Patents 2025

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
12429800 Image forming apparatus with fixing device having lever and fixed handle Shota Iriyama, Misato Osuka 2025-09-30
12372891 Toner for developing electrostatic charge image and electrostatic charge image developer Keita Yamamoto 2025-07-29
12298701 Image forming apparatus Atsushi Ozawa, Hideshi Nishiyama 2025-05-13
12298711 Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatus Shinya Sakamoto, Keita Yamamoto, Eiji Kawakami 2025-05-13
12259683 Toner for developing electrostatic charge image and electrostatic charge image developer Shinya Sakamoto 2025-03-25