Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4654676 | Valve element for use in an ink-jet printer head | Mitsuo Tsuzuki | 1987-03-31 |
| 4204107 | Thick-film thermal printing head and method of manufacturing the same | Toshio Ohkubo, Yuji Kajiwara | 1980-05-20 |