Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5223246 | Effervescent composition, its production and use | Sadao Kondo, Hidehiko Nakano | 1993-06-29 |
| 4620995 | Surface coated gasket sheet | Nobuyuki Otomo, Hiroaki Chiba, Toshiki Aono, Kozo Suzuki | 1986-11-04 |