Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5304814 | Sensor circuit and method for detecting the presence of a substance such as ink ejected from a thermal ink ejecting print head, or the like | — | 1994-04-19 |
| 5150108 | Method for slanting a generic font format while inserting corrective pixels to improve print quality | — | 1992-09-22 |
| 5121130 | Thermal ink jet printing apparatus | George O. Hempel, Herman A. Hermanson | 1992-06-09 |
| 5051758 | Clean printhead cleaner | — | 1991-09-24 |
| 4831390 | Bubble jet printing device with improved printhead heat control | Narayan V. Deshpande, Dale R. Ims, Herman A. Hermanson, Gary A. Kneezel | 1989-05-16 |
| 4638337 | Thermal ink jet printhead | Peter A. Torpey | 1987-01-20 |
| 4638328 | Printhead for an ink jet printer | Donald J. Drake, William G. Hawkins, Richard V. LaDonna | 1987-01-20 |
| 4370663 | Thin body ink drop generator | — | 1983-01-25 |
| 4348682 | Linear ink jet deflection method and apparatus | — | 1982-09-07 |
| 4296417 | Ink jet method and apparatus using a thin film piezoelectric excitor for drop generation with spherical and cylindrical fluid chambers | Doyle P. Skinner, Jr. | 1981-10-20 |
| 4282532 | Ink jet method and apparatus using a thin film piezoelectric excitor for drop generation | — | 1981-08-04 |