Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461512 | Method of disinfecting a deionized water producing apparatus and method of producing deionized water | Junya Hirayama | 2002-10-08 |
| 6452079 | Keyboard musical instrument equipped with hammer stopper promptly driven for rotation by means of rigid link work | Nobuo Sugiyama | 2002-09-17 |