Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7540617 | Illumination optical apparatus and projection type display apparatus | Hiroshi Gouda, Katsuyuki Takeuchi | 2009-06-02 |
| 7438424 | Illumination optical apparatus and projection type display apparatus | Katsuyuki Takeuchi | 2008-10-21 |
| 7177078 | Projection type display apparatus | Hiroshi Gouda, Katsuyuki Takeuchi | 2007-02-13 |