Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4932180 | Electromagnetically shielded partition wall structure | Takeshi Takahashi, Masatake Nakamura, Toshiyuki Ishikawa | 1990-06-12 |
| 4894489 | Electromagnetic shield-type doorway for buildings and electromagnetic shielding system therefor | Takeshi Takahashi, Masatake Nakamura, Toshiyuki Ishikawa, Koji Nagata | 1990-01-16 |
| 4889958 | Building with electromagnetic shield structure for individual floors | Takeshi Takahashi, Masatake Nakamura, Toshiuyki Ishikawa, Koji Nagata | 1989-12-26 |
| 4814694 | System for detecting and processing abnormality in electromagnetic shielding of intelligent buildings | Takeshi Takahashi, Masatake Nakamura, Toshiyuki Ishikawa, Koji Nagata | 1989-03-21 |
| 4810961 | Radio wave leakage diagnosing system for intelligent building | Takeshi Takahashi, Masatake Nakamura, Toshiyuki Ishikawa, Koji Nagata | 1989-03-07 |
| 4758686 | Electromagnetic shield structure for building windows | Takeshi Takahashi, Masatake Nakamura, Toshiyuki Ishikawa, Koji Nagata | 1988-07-19 |