Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5897678 | Production method for lead-free crystal glass composition | Hidetoshi Komiya | 1999-04-27 |
| 5376597 | Lead-free glass composition having properties similar to lead crystal glass | Haruhiko Ogata, Hidetoshi Komiya | 1994-12-27 |
| 4954420 | Metal-containing indoaniline compound and optical recording medium employing the compound | Shuichi Maeda, Toshio Kaneko, Yutaka Kurose, Michiyo Kimura, Hidemi Yoshida +1 more | 1990-09-04 |