Issued Patents All Time
Showing 25 most recent of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6655789 | Ink jet print head | Ryosuke Uematsu, Kazuo Shima, Minoru Yamada, Yoshihiro Hagihara, Junichi Fujisawa | 2003-12-02 |
| 6542704 | Device and method for constantly adjusting the concentration and filling level of developing solution in a printing process | — | 2003-04-01 |
| 6412895 | Electrostatic ink jet printer | Hitoshi Takemoto, Tadashi Mizoguchi, Hitoshi Minemoto, Kazuo Shima, Yoshihiro Hagiwara +1 more | 2002-07-02 |
| 6390607 | Ink jet print head | Ryosuke Uematsu, Kazuo Shima, Minoru Yamada, Yoshihiro Hagihara, Junichi Fujisawa | 2002-05-21 |
| 6389244 | Toner density sensor, and ink jet head, developing unit and image forming apparatus in which toner density sensor is used | Kazuo Shima, Toru Yakushiji | 2002-05-14 |
| 6362859 | Electrostatic ink jet recording head having electrophoretic electrode and gravity ink reservoir | Yoshihiro Hagiwara, Ryosuke Uematsu, Hitoshi Minemoto, Kazuo Shima | 2002-03-26 |
| RE37453 | Ink jet print head | Ryosuki Utmatsu, Kazuo Shima, Minoru Yamada, Yoshihiro Hagihara, Junichi Fujisawa | 2001-11-27 |
| 6290338 | Ink jet print head | Ryosuke Uematsu, Kazuo Shima, Minoru Yamada, Yoshihiro Hagihara, Junichi Fujisawa | 2001-09-18 |
| 6224193 | Inkjet recording apparatus having gate electrodes and print head thereof | Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizocuchi, Hitoshi Takemoto, Kazuo Shima +1 more | 2001-05-01 |
| 6220696 | Simple electrostatic ink jet printing head having low cost | Kazuo Shima, Yoshihiro Hagiwara, Ryosuke Uematsu, Hitoshi Minemoto, Toru Yakushiji +2 more | 2001-04-24 |
| 6220695 | Ink-jet recording device for suppressing excess electrophoretic accumulation of charged particles | Hitoshi Minemoto, Yoshihiro Hagiwara, Ryosuke Uematsu, Kazuo Shima | 2001-04-24 |
| 6213591 | Injet recording apparatus | Kazuo Shima, Ryosuke Uematsu, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto +2 more | 2001-04-10 |
| 6208321 | Electrostatic ink jet recorder having ejection electrodes and auxiliary electrodes divided into groups | Tadashi Mizoguchi, Hitoshi Takemoto, Tomoya Saeki, Hitoshi Minemoto, Kazuo Shima +2 more | 2001-03-27 |
| 6190004 | Inkjet recording apparatus | Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizocuchi, Hitoshi Takemoto, Kazuo Shima +1 more | 2001-02-20 |
| 6183065 | Control system for applying biasing and recording signals to recording electrodes of an electrostatic ink jet recording device | Yoshihiro Hagiwara, Kazuo Shima, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto +1 more | 2001-02-06 |
| 6179418 | Electrostatic ink jet recording apparatus that adjusts the amount of heat based on the type of recording material | Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima, Yoshihiro Hagiwara +1 more | 2001-01-30 |
| 6172693 | Ink jet recording head having ink stirring electrodes for dispersing ink | Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Takemoto, Kazuo Shima +1 more | 2001-01-09 |
| 6164760 | Toner quantity detection and replenishment system for an electrostatic ink jet recording apparatus | Tadashi Mizoguchi, Hitoshi Takemoto, Hitoshi Minemoto, Kazuo Shima, Yoshihiro Hagiwara +1 more | 2000-12-26 |
| 6161911 | Ink jet recording device | Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Takemoto, Kazuo Shima +2 more | 2000-12-19 |
| 6161922 | Electrostatic ink-jet recording head having a head chip provided with groove and flange portions | Kazuo Shima, Tadashi Mizoguchi, Hitoshi Minemoto, Tomoya Saeki, Hitoshi Takemoto +2 more | 2000-12-19 |
| 6155672 | Apparatus and method for ink-jet printing using extending ink-ejecting bars and method of manufacturing of the apparatus | Kazuo Shima, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Yoshihiro Hagiwara +1 more | 2000-12-05 |
| 6152557 | Electrostatic ink jet recorder | Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima +1 more | 2000-11-28 |
| 6142610 | Precision ejection ink-jet printing apparatus | Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Takemoto, Kazuo Shima +2 more | 2000-11-07 |
| 6135590 | Ink cartridge capable of preventing leak of ink | Tomoya Saeki, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima +2 more | 2000-10-24 |
| 6135588 | Electrostatic ink-jet printing head having projections extending out of an ink chamber | Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima +2 more | 2000-10-24 |