Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10559183 | Activity amount calculation system, activity amount calculation device, activity amount calculation method, and computer-readable recording medium | Kazuo Ishida, Kazuyo Kitaoka, Miho Shogenji | 2020-02-11 |