Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6477239 | Sign language telephone device | Masaru Ohki, Hirohiko Sagawa, Tomoko Sakiyama, Hisashi Ikeda, Hiromichi Fujisawa +1 more | 2002-11-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6477239 | Sign language telephone device | Masaru Ohki, Hirohiko Sagawa, Tomoko Sakiyama, Hisashi Ikeda, Hiromichi Fujisawa +1 more | 2002-11-05 |