KO

Koichiro Oyama

Ricoh Company: 3 patents #215 of 1,821Top 15%
Overall (2018): #67,652 of 503,207Top 15%
3
Patents 2018

Issued Patents 2018

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10138344 Particulate polyamide, and method for preparing the particulate polyamide Yoko Arai, Atsumi Yamabe, Yasuo Kamada 2018-11-27
10000656 Ink, recorded matter, ink container, recording device, and recording method Yoshiki Yanagawa, Akihiko Matsuyama, Kazukiyo Nagai, Tomoyuki Shimada, Shigeyuki Harada +3 more 2018-06-19
9896530 Copolymer, coloring material dispersion, ink, and ink store container Shigeyuki Harada, Kazukiyo Nagai, Yuusuke Koizuka, Tomoyuki Shimada, Takuya Yamazaki +3 more 2018-02-20