TK

Toshio Kumagai

SE Seiko Epson: 128 patents #14 of 7,774Top 1%
SC Shimizu Construction Co.: 2 patents #41 of 352Top 15%
Bridgestone: 1 patents #1,586 of 2,860Top 60%
SG Seiko Group: 1 patents #32 of 90Top 40%
Overall (All Time): #8,274 of 4,157,543Top 1%
131
Patents All Time

Issued Patents All Time

Showing 26–50 of 131 patents

Patent #TitleCo-InventorsDate
9199468 Liquid discharging apparatus and method of cleaning discharge head Yoshihiro Kobayashi, Norihiro Masuda, Katsuyoshi Onodera 2015-12-01
9193159 Liquid retainer Yoshiharu Aruga, Hitoshi Matsumoto 2015-11-24
9162472 Filter unit, liquid ejecting apparatus, and bubble removal method Kaoru Koike, Masaaki Ando, Haruhisa Uezawa 2015-10-20
9085158 Liquid discharging apparatus and method for cleaning discharge head Yoshihiro Kobayashi, Katsuyoshi Onodera, Kazutoshi Shimizu 2015-07-21
9067428 Liquid supply method Hitoshi Matsumoto 2015-06-30
9039147 Liquid feed valve unit and liquid ejection device Kaoru Koike, Kazutoshi Shimizu 2015-05-26
8998394 Ink cartridge, and ink-jet recording apparatus using the same Taku Ishizawa, Masanori Kamijyo 2015-04-07
8967776 Liquid ejection apparatus Yoshiharu Aruga, Hitoshi Matsumoto 2015-03-03
8939562 Liquid discharging apparatus and control method thereof Kaoru Koike 2015-01-27
8919917 Liquid ejecting apparatus and method of cleaning liquid ejecting head of liquid ejecting apparatus Kaoru Koike, Tadayuki Yoshimoto 2014-12-30
8783826 Fluid ejecting apparatus and method of controlling the fluid ejecting apparatus Kaoru Koike, Hiroki Matsuoka 2014-07-22
8764140 Liquid supply method Hitoshi Matsumoto 2014-07-01
8727514 Liquid injecting apparatus Yoshiharu Aruga, Hitoshi Matsumoto 2014-05-20
8727490 Fluid discharging apparatus Kaoru Koike 2014-05-20
8708467 Liquid injecting apparatus Yoshiharu Aruga, Hitoshi Matsumoto 2014-04-29
8690301 Liquid discharging apparatus and control method thereof Kaoru Koike 2014-04-08
8657415 Liquid ejecting apparatus and control method thereof 2014-02-25
8636347 Ink cartridge, and ink-jet recording apparatus using the same Taku Ishizawa, Masanori Kamijyo 2014-01-28
8608269 Fluid ejecting apparatus, and fluid ejecting method Hidenori Usuda, Hideo Noro, Shinichi Kamoshida 2013-12-17
8596768 Liquid discharging apparatus and control method thereof Kaoru Koike 2013-12-03
8596775 Filter unit, liquid ejecting apparatus, and bubble removal method Kaoru Koike, Masaaki Ando, Haruhisa Uezawa 2013-12-03
8585191 Liquid supply method Hitoshi Matsumoto 2013-11-19
8579422 Flow path unit and image forming apparatus that includes flow path unit Hiroki Matsuoka, Kaoru Koike 2013-11-12
8573760 Liquid ejecting apparatus Kazuhito Hori, Kaoru Koike 2013-11-05
8550591 Fluid ejecting apparatus and method of controlling the fluid ejecting apparatus Kaoru Koike, Hiroki Matsuoka 2013-10-08