Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856412 | Vacuum operated booster | Satoshi Kawasumi, Yuzuru Sugiura, Hiroyuki Kondo, Kazuhiko Suzuki | 1989-08-15 |
| 4843948 | Vacuum-operated brake booster with a key and retainer therefor | Yuzuru Sugiura | 1989-07-04 |