Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189266 | Vehicular exhaust resonance suppression system and sensing means therefore | Akira Sasaki, Yoshikazu Hayakawa, Yuichi Sakuma, Tatsuo Sakai | 1993-02-23 |
| 4853417 | Process for manufacturing rigid polyurethane foam | Eckehard Weigand, Masaru Honda | 1989-08-01 |