Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4396667 | Electrostatic recording medium | Nobuo Sonoda, Wataru Shimotsuma | 1983-08-02 |
| 4359238 | Image-receiving sheet | Yuji Takashima | 1982-11-16 |
| 4275103 | Electrographic recording medium with conductive layer containing metal oxide semiconductor | Nobuo Sonoda, Wataru Shimotsuma | 1981-06-23 |
| 4246143 | Process of preparing conductive tin dioxide powder | Nobuo Sonoda, Wataru Shimotsuma | 1981-01-20 |