Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6684447 | Cleaning sponge roller | Koji Mihara, Shuki Gohda, Masao Ide, Konomu Tokunaga, Hiroshi Miyaji | 2004-02-03 |
| 6502273 | Cleaning sponge roller | Koji Mihara, Shuki Gohda, Masao Ide, Konomu Tokunaga, Hiroshi Miyaji | 2003-01-07 |
| 5530086 | Polyester containing 9,9-bis(4-(2-hydroxyalkoxy)phenyl fluorene | Michiaki Fuji, Kenji Yao, Toshihiro Kushimoto | 1996-06-25 |