Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6130691 | Inkjet recording apparatus having specific driving circuitry for driving electrophoresis electrodes | Hitoshi Takemoto, Tadashi Mizoguchi, Hitoshi Minemoto, Kazuo Shima, Yoshihiro Hagiwara +1 more | 2000-10-10 |
| 6128450 | Method and apparatus for detecting ink concentration | — | 2000-10-03 |
| 6123416 | Inkjet apparatus and method for ejecting particulate matter from an ejection electrode using an electric field | Hitoshi Minemoto, Yoshihiro Hagiwara, Ryousuke Uematsu, Tadashi Mizoguchi, Hitoshi Takemoto +2 more | 2000-09-26 |
| 6119342 | Method of producing a record head for an electrostatic ink jet recorder | Kazuo Shima, Ryosuke Uematsu, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto +2 more | 2000-09-19 |
| 6120122 | Inkjet recording apparatus | Hitoshi Takemoto, Tadashi Mizoguchi, Hitoshi Minemoto, Kazuo Shima, Yoshihiro Hagiwara +1 more | 2000-09-19 |
| 6113219 | Electrostatic ink jet recording apparatus capable of realizing stable ejection of ink | Tadashi Mizoguchi, Hitoshi Takemoto, Hitoshi Minemoto, Kazuo Shima, Yoshihiro Hagiwara +2 more | 2000-09-05 |
| 6102522 | Electrostatic ink jet recording apparatus and method of producing the same | Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima +1 more | 2000-08-15 |
| 6095638 | Elastic ink jet printing head and method for manufacturing head block thereof | Kazuo Shima, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Tomoya Saeki +2 more | 2000-08-01 |
| 6089699 | Method and apparatus for controlling inkjet ejection electrodes by varying the electrodes potentials | Hitoshi Minemoto, Yoshihiro Hagiwara, Ryosuke Uematsu, Tadashi Mizoguchi, Hitoshi Takemoto +2 more | 2000-07-18 |
| 6079817 | Electrostatic ink-jet recording head | Kazuo Shima, Tadashi Mizoguchi, Hitoshi Minemoto, Tomoya Saeki, Hitoshi Takemoto +2 more | 2000-06-27 |
| 6076909 | Gap adjusting device for a print head used in an ink jet recording apparatus and gap adjusting method | Tomoya Saeki, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima +2 more | 2000-06-20 |
| 6076918 | Method of manufacturing an electrostatic ink jet printing head with pointed ink ejectors | Kazuo Shima, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Yoshihiro Hagiwara +1 more | 2000-06-20 |
| 6074044 | Electrostatic ink jet recording head using control and recording electrodes for ejecting toner particles | Kazuo Shima, Yoshihiro Hagiwara, Ryosuke Uematsu, Hitoshi Minemoto, Toru Yakushiji +2 more | 2000-06-13 |
| 6059399 | Ink-jet recording apparatus with improved ink density formation | Kazuo Shima, Yoshihiro Hagiwara, Ryosuke Uematsu, Hitoshi Minemoto, Hitoshi Takemoto +2 more | 2000-05-09 |
| 6039442 | Electrostatic ink jet recording device having a stirring system | Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima +1 more | 2000-03-21 |
| 6022097 | Ink-jet printer to use ink containing pigment particles | Hitoshi Minemoto, Yoshihiro Hagiwara, Ryousuke Uematsu, Kazuo Shima | 2000-02-08 |
| 5997133 | Inkjet recording apparatus having a minimum number of ejection electrode driving circuits and method for driving same | Hitoshi Takemoto, Tadashi Mizoguchi, Hitoshi Minemoto, Kazuo Shima, Yoshihiro Hagiwara +1 more | 1999-12-07 |
| 5988795 | Electrostatic ink jet recording apparatus preventing precipitation of charged particulate material in ink liquid | Yoshihiro Hagiwara, Hitoshi Minemoto, Ryosuke Uematsu, Kazuo Shima | 1999-11-23 |
| 5991559 | Solute concentration control method and apparatus | Kazuo Shima, Toru Yakushiji | 1999-11-23 |
| 5975684 | Ink jet recording head having an ink stream path | Kazuo Shima, Ryosuke Uematsu, Hitoshi Minemoto, Yoshihiro Hagiwara | 1999-11-02 |
| 5969732 | Electrostatic ink-jet recording device with control electrodes for selectively preventing ejection of toner | — | 1999-10-19 |
| 5963231 | Electrostatic ink jet recording head with grouped electrodes | Kazuo Shima, Ryosuke Uematsu, Hitoshi Minemoto, Yoshihiro Hagiwara | 1999-10-05 |
| 5940098 | Ink-jet printer using ink containing pigment particles | Hitoshi Minemoto, Yoshihiro Hagiwara, Ryousuke Uematsu, Kazuo Shima | 1999-08-17 |
| 5926194 | Electrostatic ink jet recording device | Yoshihiro Hagiwara, Hitoshi Minemoto, Ryosuke Uematsu, Kazuo Shima | 1999-07-20 |
| 5905510 | Toner content monitoring system for use in a recording head for ink-jet printer | Yoshihiro Hagiwara, Hitoshi Minemoto, Ryosuke Uematsu, Kazuo Shima | 1999-05-18 |