Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661503 | Polycrystalline silicon-based substrate for liquid jet recording head, process for producing said substrate, liquid jet recording head in which said substrate is used, and liquid jet recording apparatus in which said substrate is used | — | 1997-08-26 |
| 5596357 | Liquid jet recording substrate, the method of manufacture therefor, a liquid jet recording head using such a substrate, and a recording apparatus provided with such a recording head | — | 1997-01-21 |
| 5469200 | Polycrystalline silicon substrate having a thermally-treated surface, and process of making the same | — | 1995-11-21 |
| 5287622 | Method for preparation of a substrate for a heat-generating device, method for preparation of a heat-generating substrate, and method for preparation of an ink jet recording head | — | 1994-02-22 |
| 4887099 | Substrate for an ink jet recording head having electrodes formed on a glaze layer, and a recording head and apparatus using the substrate | Yasutomo Watanabe | 1989-12-12 |