Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870861 | Liquid level indicator | Yukio Ohtani | 1989-10-03 |
| 4812749 | Bimetallic indicator | Toshio Ohike, Youji Nakazaki | 1989-03-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870861 | Liquid level indicator | Yukio Ohtani | 1989-10-03 |
| 4812749 | Bimetallic indicator | Toshio Ohike, Youji Nakazaki | 1989-03-14 |