Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682190 | Ink jet head and apparatus having an air chamber for improving performance | Toshiaki Hirosawa, Yutaka Koizumi, Jiro Moriyama, Torachika Osada, Hidemi Kubota | 1997-10-28 |
| 5592200 | Ink jet apparatus capable of practicing an improved recovery operation | — | 1997-01-07 |
| 5561448 | Ink jet recording apparatus for recovering recording head | Hidemi Kubota, Yutaka Koizumi, Torachika Osada, Toshiaki Hirosawa, Jiro Moriyama | 1996-10-01 |
| 5357268 | Ink jet recording head in which the ejection elements are driven in blocks | Hideaki Kishida, Akira Katayama, Kimiyuki Hayasaki, Nobuyuki Watanabe, Jiro Moriyama +4 more | 1994-10-18 |
| 5343227 | Ink jet recording apparatus and ink jet recording head with means reducing the amount of warp | Toshiaki Hirosawa, Torachika Osada, Jiro Moriyama, Hidemi Kubota, Yutaka Koizumi +3 more | 1994-08-30 |
| 5231424 | Ink jet recording apparatus with efficient circulation recovery | Hidemi Kubota, Yutaka Koizumi, Torachika Osada, Toshiaki Hirosawa, Jiro Moriyama | 1993-07-27 |
| 5173717 | Ink jet recording head in which the ejection elements are driven in blocks | Hideaki Kishida, Akira Katayama, Kimiyuki Hayasaki, Nobuyuki Watanabe, Jiro Moriyama +4 more | 1992-12-22 |
| 5164747 | Ink jet head with testing resistors | Torachika Osada, Toshiaki Hirosawa, Jiro Moriyama, Hidemi Kubota, Yutaka Koizumi | 1992-11-17 |