KN

Kei Niwayama

Ricoh Company: 2 patents #300 of 1,584Top 20%
Overall (2019): #150,979 of 560,194Top 30%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10474051 Carrier for developer of electrostatic latent image, two-component developer, replenishing developer, image forming apparatus, and toner stored unit Mariko Takii, Koichi Sakata, Tohru Suganuma, Masahiro Seki, Masashi Nagayama +1 more 2019-11-12
10254674 Carrier for developer of electrostatic latent image, developer, and image forming apparatus Masahiro Seki, Hiroyuki Kishida, Haruki Murata, Shinya Nakagawa, Saori Yamada +1 more 2019-04-09