KK

Koji Kawahara

Ricoh Company: 2 patents #318 of 1,487Top 25%
Overall (2020): #150,646 of 565,922Top 30%
2
Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10792920 Laminated substrate, liquid discharge head, and liquid discharge apparatus Junichi Iwata, Yoshitaka Fujinuma, Kanshi Abe, Takayuki Nakai 2020-10-06
10696046 Liquid discharge head, liquid discharge device, and liquid discharge apparatus Takahiro Yoshida 2020-06-30