Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4329154 | Method of recovering boric acid | Kanji Shono, Tokio Kitoh, Takashi Hironaka | 1982-05-11 |
| 4316780 | Method of producing color-anodized aluminium articles | Kohichi Yoshida, Teruo Miyashita | 1982-02-23 |