Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4720440 | Monoblock sealed lead-acid storage battery | Kunio Yonezu, Teruhiro Hatanaka | 1988-01-19 |
| 4689571 | Specific gravity detecting device for lead-acid battery | Kunio Yonezu, Hidetsugu Nitta | 1987-08-25 |
| 4336314 | Pasted type lead-acid battery | Kunio Yonezu, Katsuhiro Takahashi | 1982-06-22 |