RO

Ryoji Oohashi

Canon: 18 patents #3,676 of 19,416Top 20%
Overall (All Time): #253,299 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
11141974 Print element substrate, liquid discharge head, and liquid discharge apparatus Yoshinori Misumi, Yuzuru Ishida, Tsubasa Funabashi, Maki Kato 2021-10-12
10889113 Recording element board, liquid ejection apparatus and method of manufacturing recording element board Tsubasa Funabashi, Koichi Omata, Hideo Tamura, Kousuke Kubo, Yohei Osuki 2021-01-12
10500851 Print element substrate, printhead, and printing apparatus Yohei Osuki, Koichi Omata, Hideo Tamura, Takaaki Yamaguchi, Kousuke Kubo +3 more 2019-12-10
9950525 Element substrate for liquid ejecting head and wafer Koichi Omata, Hideo Tamura, Takaaki Yamaguchi, Kousuke Kubo, Suguru Taniguchi +3 more 2018-04-24
9833992 Recording-element substrate, recording head, and recording apparatus Suguru Taniguchi, Koichi Omata, Hideo Tamura, Takaaki Yamaguchi, Kousuke Kubo +3 more 2017-12-05
8943690 Method for manufacturing substrate for liquid ejection head and method for manufacturing liquid ejection head Yuzuru Ishida, Takuya Hatsui, Kazuaki Shibata, Takeru Yasuda, Yoshiyuki Imanaka +4 more 2015-02-03
8876242 Liquid ejection head Yuuji Tamaru, Yoshiyuki Imanaka, Koichi Omata, Hideo Tamura, Takaaki Yamaguchi +6 more 2014-11-04
8608276 Liquid discharge head and ink jet recording apparatus including liquid discharge head Yoshiyuki Imanaka, Kazunori Masuda, Daishiro Sekijima, Takashi Aoki 2013-12-17
8534796 Liquid-discharging recording head Koichi Omata, Yoshiyuki Imanaka, Hideo Tamura, Takaaki Yamaguchi, Kousuke Kubo +1 more 2013-09-17
8439485 Substrate including a detection feature for liquid discharge head and liquid discharge head Yuji Tamaru, Yoshiyuki Imanaka, Koichi Omata, Hideo Tamura, Kousuke Kubo 2013-05-14
8246147 Inkjet printhead substrate, method for manufacturing inkjet printhead substrate, inkjet print head, and inkjet recording apparatus Hideo Tamura, Yoshiyuki Imanaka, Koichi Omata, Takaaki Yamaguchi, Kousuke Kubo +3 more 2012-08-21
8235481 Inkjet recording head and recording apparatus Kousuke Kubo, Yoshiyuki Imanaka, Koichi Omata, Hideo Tamura, Takaaki Yamaguchi +2 more 2012-08-07
8235486 Recording element substrate, recording head including the same, and recording head cartridge Toshio Negishi, Yoshiyuki Imanaka, Takaaki Yamaguchi, Kazushi Fujimoto 2012-08-07
8109593 Substrate for inkjet head and inkjet head using the same Yoshiyuki Imanaka, Koichi Omata, Takaaki Yamaguchi, Hideo Tamura, Kousuke Kubo 2012-02-07
8096644 Liquid ejection head and liquid ejection method Shuichi Murakami, Akihiro Yamanaka, Yasunori Takei 2012-01-17
8083317 Liquid-discharging recording head Koichi Omata, Yoshiyuki Imanaka, Hideo Tamura, Takaaki Yamaguchi, Kousuke Kubo +1 more 2011-12-27
8070263 Printing head substrate, ink jet printing head and ink jet printing apparatus with substrate temperature detecting element Yoshiyuki Imanaka, Koichi Omata, Hideo Tamura, Takaaki Yamaguchi, Kousuke Kubo +2 more 2011-12-06
8066347 Recording element substrate, recording head, and ink jet recording apparatus having the recording head Hideo Tamura, Yoshiyuki Imanaka, Koichi Omata, Takaaki Yamaguchi, Kousuke Kubo 2011-11-29