Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7696747 | Electromagnetic induction type inspection device and method | Hiroaki Kohama, Makio Iwamoto, Takayuki Yamaki, Ichiro Fujitomi | 2010-04-13 |
| 5548214 | Electromagnetic induction inspection apparatus and method employing frequency sweep of excitation current | Hiroaki Kohama | 1996-08-20 |
| 5432444 | Inspection device having coaxial induction and exciting coils forming a unitary coil unit | Hiroaki Kohama, Hirofumi Takahashi | 1995-07-11 |