Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4273811 | Method of applying slip to interior surfaces of a closed tank to provide an enamel coating | Joji Okamoto, Hitoshi Azuma, Takemi Naito, Seiji Kawai, Minoru Goto | 1981-06-16 |