Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807993 | Method and apparatus for measuring light by frequency modulation using a time-variable synchronous rectification signal | Kenji Nakamura | 1989-02-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807993 | Method and apparatus for measuring light by frequency modulation using a time-variable synchronous rectification signal | Kenji Nakamura | 1989-02-28 |