RK

Ryo Kasai

Canon: 82 patents #213 of 19,416Top 2%
SI Sumitomo Electric Device Innovations: 1 patents #123 of 208Top 60%
Overall (All Time): #20,800 of 4,157,543Top 1%
83
Patents All Time

Issued Patents All Time

Showing 51–75 of 83 patents

Patent #TitleCo-InventorsDate
8876242 Liquid ejection head Yuuji Tamaru, Yoshiyuki Imanaka, Koichi Omata, Hideo Tamura, Takaaki Yamaguchi +6 more 2014-11-04
8864276 Printhead and printing apparatus utilizing data signal transfer error detection Hidenori Yamato, Tatsuo Furukawa, Nobuyuki Hirayama, Kimiyuki Hayasaki, Shinji Takagi 2014-10-21
8740350 Inkjet recording head substrate and drive control method, inkjet recording head, inkjet recording head cartridge and inkjet recording apparatus Masataka Sakurai, Tatsuo Furukawa, Hidenori Watanabe, Nobuyuki Hirayama 2014-06-03
8632150 Printhead substrate, printhead and printing apparatus Nobuyuki Hirayama, Tomoko Kudo, Tatsuo Furukawa 2014-01-21
8579399 Reception device and apparatus having the same Nobuyuki Hirayama, Tatsuo Furukawa, Kimiyuki Hayasaki, Hisao Terajima 2013-11-12
8508565 Device and apparatus for controlling same Tatsuo Furukawa, Nobuyuki Hirayama, Shinichi Omo, Hiroyuki Nakamura, Kimiyuki Hayasaki 2013-08-13
8506030 Element substrate, printhead, and head cartridge Tomoko Kurokawa, Nobuyuki Hirayama 2013-08-13
8400484 Device and apparatus for controlling same Tatsuo Furukawa, Nobuyuki Hirayama, Shinichi Omo, Hiroyuki Nakamura, Kimiyuki Hayasaki 2013-03-19
8388086 Element substrate for recording head, recording head, head cartridge, and recording apparatus 2013-03-05
8371668 Recoding element substrate, recording head equipped with the same, recording head cartridge, and recording apparatus Tatsuo Furukawa, Nobuyuki Hirayama, Tomoko Kudo 2013-02-12
8342620 Driving device, recording head, and apparatus using the same Nobuyuki Hirayama, Tatsuo Furukawa, Kimiyuki Hayasaki 2013-01-01
8322809 Recording head and recording apparatus using recording head Tomoko Kudo, Tatsuo Furukawa, Nobuyuki Hirayama, Tomoyuki Inoue 2012-12-04
8226190 Recording element substrate and recording head having the same Nobuyuki Hirayama, Tatsuo Furukawa, Masataka Sakurai, Tomoko Kudo 2012-07-24
8223316 Exposure apparatus and device manufacturing method Akihisa Kaga 2012-07-17
8177333 Element board for printhead, and printhead having the same Nobuyuki Hirayama, Masataka Sakurai 2012-05-15
8147039 Head substrate, printhead, head cartridge, and printing apparatus Tomoko Kurokawa, Nobuyuki Hirayama, Masataka Sakurai 2012-04-03
8075103 Ink jet print head substrate and ink jet print head Tatsuo Furukawa, Masataka Sakurai, Nobuyuki Hirayama, Tomoko Kurokawa 2011-12-13
8016378 Element substrate, printhead, and head cartridge Tomoko Kurokawa, Nobuyuki Hirayama 2011-09-13
7988260 Recording element substrate and recording head including recording element substrate Tomoko Kudo, Tatsuo Furukawa, Nobuyuki Hirayama 2011-08-02
7959243 Printhead, head cartridge, and printing apparatus employing either of same Masataka Sakurai 2011-06-14
7954918 Liquid discharge head substrate and liquid discharge head having reduced heat enable wiring Nobuyuki Hirayama 2011-06-07
7896474 Liquid ejection head and recording apparatus Mineo Kaneko, Masataka Sakurai 2011-03-01
7866798 Head cartridge, printhead, and substrate having downsized level conversion elements that suppress power consumption Masataka Sakurai 2011-01-11
7850266 Element substrate for recording head, recording head, head cartridge, and recording apparatus 2010-12-14
7819493 Element board for printhead, and printhead having the same Nobuyuki Hirayama, Masataka Sakurai 2010-10-26