Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4903306 | Voice recognition using an eigenvector | — | 1990-02-20 |
| 4833717 | Voice spectrum analyzing system and method | Tomofumi Nakatani | 1989-05-23 |
| 4634966 | Binary processing of sound spectrum | Tomofumi Nakatani | 1987-01-06 |