Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680027 | Battery pack including internal capacity monitor for monitoring groups of battery cells | Masaru Hiratsuka, Shigeki Murayama, Tamiji Nagai, Yasuhito Eguchi | 1997-10-21 |
| 5371529 | Ink-jet print head and ink-jet printer | Yasuhito Eguchi, Makoto Ando, Toshio Narushima, Masayuki Sato, Masao Araya | 1994-12-06 |
| 4723056 | Coordinate position digitizing system | Hideshi Tamaru, Kimiyoshi Yoshida, Hiroshi Benno, Akio Sakano | 1988-02-02 |