Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9910820 | Electronic device, mathematical expression display control method, and storage medium which stores mathematical expression control program | Akiko Muraki, Sachiko Hirata, Hiroshi Uejima | 2018-03-06 |
| 9697169 | Electronic device, mathematical expression display control method, and storage medium which stores mathematical expression control program | Akiko Muraki, Sachiko Hirata, Hiroshi Uejima | 2017-07-04 |
| 8214413 | Electronic calculator with a formula display function | — | 2012-07-03 |
| 7827221 | Fraction display apparatus | — | 2010-11-02 |