YK

Yohichi Kitagawa

Ricoh Company: 4 patents #4,167 of 9,818Top 45%
Overall (All Time): #1,088,627 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12416874 Toner, developer, toner accommodating unit, image forming apparatus, and image forming method Kenji Komito, Masayuki Ukigaya, Mitsuaki Hirose, Daisuke Inoue 2025-09-16
12353166 Toner, method for manufacturing the toner, toner accommodating unit, image forming apparatus, and image forming method Daisuke Inoue, Mitsuaki Hirose, Masayuki Ukigaya, Kenji Komito, Hiroshi Yamada 2025-07-08
11372363 Image forming apparatus and image forming method Daisuke Inoue, Shinya Nakayama, Takaaki Tawada, Kenji Komito 2022-06-28
11054757 Toner, image forming apparatus, image forming method, and process cartridge Keiji Makabe, Yuka Mizoguchi, Tsuneyasu Nagatomo, Shinya Nakayama 2021-07-06