Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6208482 | Signal amplifying circuit for an MR element | Takehiko Umeyama | 2001-03-27 |
| 5557220 | Polarity detector | Takehiko Umeyama | 1996-09-17 |
| 5440253 | Semiconductor integrated comparator circuit | — | 1995-08-08 |