Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490937 | Exhaust gas sampling apparatus | Atsushi Shibata, Kyoshuke Sasaki, Mamoru Matsuyama, Keisuki Obara, Shigeru Yanagihara +1 more | 2002-12-10 |
| 6443021 | Exhaust gas sampling apparatus | Atsushi Shibata, Kyoshuke Sasaki, Mamoru Matsuyama, Keisuki Obara, Shigeru Yanagihara +1 more | 2002-09-03 |
| 6405577 | Flow rate detector mechanism with variable venturi and exhaust gas sampling method using the same | Atsushi Shibata, Shigeru Yanagihara, Shuta Yamawaki | 2002-06-18 |
| 6293161 | Exhaust gas sampling apparatus | Atsushi Shibata, Kyoshuke Sasaki, Mamoru Matsuyama, Keisuki Obara, Shigeru Yanagihara +1 more | 2001-09-25 |