Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7279545 | Production method of biodegradable plastic and apparatus for use in production thereof | Takatsugu Takamura, Kim Dong Baek | 2007-10-09 |
| 6020949 | Device and automatic correction method for surface light source | — | 2000-02-01 |