Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6688201 | Thin sheet punching device | Mikio Majima, Saburo Nakatsuka, Takanori Kuse, Akio Shizuno | 2004-02-10 |
| 6228530 | Dry cell and method of manufacturing outer metal jacket thereof | Akio Sakamoto, Keiji Ogino | 2001-05-08 |