Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6885945 | Method for estimating origin time, hypocentral distance, and scale based on electric field observation, and apparatus for prediction | Takumi Matsumoto, Kozo Takahashi | 2005-04-26 |
| 6622093 | Method and system for predicting rapid motion in earth's crust on basis of electromagnetic field observation | Hiroshi Iitaka, Kozo Takahashi | 2003-09-16 |
| 5694129 | Method of imminent earthquake prediction by observation of electromagnetic field and system for carrying out the same | Kozo Takahashi | 1997-12-02 |
| 5086415 | Method for determining source region of volcanic tremor | Kozo Takahashi | 1992-02-04 |
| 4961143 | Method of predicting volcanic eruptions | Kozo Takahashi | 1990-10-02 |