Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5411790 | Signal input sheet | Kiichiro Ogawa, Hiroshi Yamada, Yasuo Kagami | 1995-05-02 |
| 5010213 | Signal input sheet | Masafumi Moriwaki, Shigeaki Sano, Katsunori Hatakeyama, Hiroshi Yamada | 1991-04-23 |