AS

Akiyoshi Sabu

Ricoh Company: 3 patents #392 of 2,036Top 20%
Overall (2016): #81,138 of 481,213Top 20%
3
Patents 2016

Issued Patents 2016

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9400439 Toner, developer, and image forming apparatus Kousuke Nagata, Masahide Yamada, Shinya Nakayama, Tatsuya Morita, Takamasa Hase +2 more 2016-07-26
9365670 Copolymer, aqueous ink, and ink cartridge Shigeyuki Harada, Yoshiki Yanagawa, Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai +2 more 2016-06-14
9353274 Ink, ink cartridge, inkjet recording device, and copolymer Keita Katoh, Shigeyuki Harada, Yoshiki Yanagawa, Masayuki Fukuoka, Kazukiyo Nagai +2 more 2016-05-31