Issued Patents All Time
Showing 51–51 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6765600 | Time recorder with a card feed rate adjustment function and time card for use in the same | Hiroaki Yamagishi, Hirosada Watanabe, Masayuki Mochizuki | 2004-07-20 |