Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7358739 | Geo-storm generation apparatus and internal exploration apparatus using the geo-storm generation apparatus | Tomoo Matsuo, Kohichi Matsuo, Akira Ishikawa | 2008-04-15 |
| D467237 | Microphone receiver | Tomoyuki Narumi | 2002-12-17 |