KO

Koh Ohnuma

Ricoh Company: 2 patents #452 of 1,810Top 25%
Overall (2017): #131,986 of 506,227Top 30%
2
Patents 2017

Issued Patents 2017

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9753387 Toner, developer and developer containing unit Shin Hasegawa, Tsuyoshi Sugimoto, Hideyuki Santo, Kohsuke Nagata, Suzuka Karato 2017-09-05
9639016 Toner, developer, image forming apparatus, and process cartridge Tsuyoshi Sugimoto, Shinya Nakayama, Hiroshi Yamada, Hideyuki Santo, Shin Hasegawa +2 more 2017-05-02