Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8315379 | Single transducer full duplex talking circuit | Masahisa Masuda | 2012-11-20 |
| 7218953 | Infrared communication adapter | Takeshi Ohyama, Shin-ichi Nagamura | 2007-05-15 |
| 6876354 | Keyboard type input device and portable information processor | Kazuhisa Terasaki, Takeshi Ohyama, Akihiro Yamada, Masanori Naritomi, Kenji Nakamura | 2005-04-05 |