Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5895538 | Method of manufacturing and using vibration-damping material | Tadashi Hatayama, Ichiro Yamagiwa, Kenshi Maekawa, Kenji Iwai, Toshimitsu Tanaka +5 more | 1999-04-20 |
| 5690035 | Vibration-damping material, its manufacturing method, and structural section for transport vehicle | Tadashi Hatayama, Ichiro Yamagiwa, Kenshi Maekawa, Kenji Iwai, Toshimitsu Tanaka +5 more | 1997-11-25 |
| 4420332 | Process for the production of reduced iron and thermal cracking of heavy oils | Kenji Mori, Kiichi Narita, Ryuzo Ijiri, Tsuneo Morimitsu, Dentaro Kaneko +2 more | 1983-12-13 |