RK

Ryo Kasai

Canon: 8 patents #33 of 3,943Top 1%
Overall (2021): #11,914 of 548,734Top 3%
8
Patents 2021

Issued Patents 2021

Patent #TitleCo-InventorsDate
11090937 Liquid ejection head, liquid ejection apparatus, and liquid supply method Yoshiyuki Nakagawa, Kazuhiro Yamada, Takuro Yamazaki, Toru Nakakubo 2021-08-17
11065878 Liquid ejection head and liquid ejection apparatus Kazuhiro Yamada, Yoshiyuki Nakagawa, Toru Nakakubo, Takuro Yamazaki 2021-07-20
11001071 Liquid ejection head and method for manufacturing the same Takashi Sugawara, Masafumi Morisue, Yoshiyuki Nakagawa, Kazuhiro Yamada, Takuro Yamazaki +1 more 2021-05-11
10987922 Printing apparatus and printhead substrate Kengo Umeda, Takamitsu Tokuda 2021-04-27
10974504 Liquid ejection head and control method of liquid ejection head Takuro Yamazaki, Yoshiyuki Nakagawa, Toru Nakakubo, Kazuhiro Yamada 2021-04-13
10960666 Element substrate, liquid discharge head, and printing apparatus Kazuhiro Yamada, Takuro Yamazaki, Yoshiyuki Nakagawa, Toru Nakakubo 2021-03-30
10933669 Print element board, liquid ejection head, and liquid ejection apparatus Satoshi Kimura, Shingo Okushima 2021-03-02
10906310 Liquid ejection head and method of manufacturing the same Tomoko Kudo, Masafumi Morisue, Yoshiyuki Nakagawa, Takuro Yamazaki, Takashi Sugawara +1 more 2021-02-02