Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9007376 | Graph display apparatus and graph display method | Rie Kai | 2015-04-14 |
| 5739823 | Graph display devices | Akihiro Handa, Hidekazu Tanaka, Makoto Ozawa, Kazuhiko Arikawa | 1998-04-14 |