Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258740 | Ultraviolet ray absorbing glass | Hiroshi Machishita | 2001-07-10 |
| 4981712 | Method of producing thin-film electroluminescent device using CVD process to form phosphor layer | Yuji Yamamoto, Tsuyoshi Maekawa | 1991-01-01 |