Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12249350 | Methods for improving track density in dual-reel removable tape devices and fixed tape devices | Keiichi Okada, Takehiko Hamaguchi | 2025-03-11 |
| 12106772 | Methods for increasing storage capacity and improving performance in dual-reel removable tape devices and fixed tape devices | Keiichi Okada, Takehiko Hamaguchi | 2024-10-01 |
| 11990154 | Seek time to the beginning position of data on tape media | Takehiko Hamaguchi, Keiichi Okada | 2024-05-21 |
| 11295771 | Head positioning assembly for tape embedded drive | Kouki Uefune, Toshio Takahashi | 2022-04-05 |
| 11107494 | Data storage device accessing magnetic tape by actuating head in two dimensions | Toshio Takahashi, Kouki Uefune | 2021-08-31 |
| 5258905 | Expanded programmable machine controller | Takashi Yamauchi, Atsushi Koike | 1993-11-02 |
| 5204597 | Externally extended type programmable controller | Takashi Yamauchi | 1993-04-20 |