Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885218 | Battery exhaust gas plug filter and process for manufacturing the same | Masayasu Andou | 1989-12-05 |
| 4649071 | Composite material and process for producing the same | Minoru Yamamoto | 1987-03-10 |