Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7358739 | Geo-storm generation apparatus and internal exploration apparatus using the geo-storm generation apparatus | Ayako Ishikawa, Kohichi Matsuo, Akira Ishikawa | 2008-04-15 |
| 6201396 | Apparatus for predicting earthquakes and other terrestrial events | Ayako Isikawa, Akira Isikawa | 2001-03-13 |