Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852184 | Method and system for spectacles frame image processing and recording | Masafumi Tamura, Ken Ichikawa | 1989-07-25 |
| 4813004 | Method for measuring the maximum gross weight of a motor vehicle | Arisa Fujioka | 1989-03-14 |