Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4763633 | Fuel supply for a small boat | — | 1988-08-16 |
| 4419388 | Waterproofing method for ink jet records | Masatoshi Sugiyama, Yoshiaki Suzuki | 1983-12-06 |
| 4371582 | Ink jet recording sheet | Masatoshi Sugiyama, Akira Ogawa, Masakazu Maekawa | 1983-02-01 |