Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890033 | Light-emitting composition and fluorescent lamp | Kouichi Okada, Yuji Itsuki, Kaname Tsuchikura | 1989-12-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890033 | Light-emitting composition and fluorescent lamp | Kouichi Okada, Yuji Itsuki, Kaname Tsuchikura | 1989-12-26 |