Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5090029 | Data communication method and apparatus | Toshifumi Yamamoto, Hiromasa Yamaoka, Masakazu Okada | 1992-02-18 |
| 4694419 | Programmable controller with direct to plant addressing | Tadashi Okamoto, Kazuhiko Shimoyama, Hiromasa Yamaoka | 1987-09-15 |