Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6904703 | Dry cleaning machine | Mitsuru Naganawa, Masafumi Nishino | 2005-06-14 |
| 5010041 | Colored low-expansion transparent glass ceramic | Akihiro Koyama, Nobuyuki Yamamoto | 1991-04-23 |