Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10950829 | Sealing body of cylindrical battery, and cylindrical battery | — | 2021-03-16 |
| 10629858 | Sealing body of tube-shaped battery and tube-shaped battery | — | 2020-04-21 |
| 9923178 | Sealing member of tube-shaped battery and tube-shaped battery | Shohei Itagaki | 2018-03-20 |
| 4804593 | Enclosed cell having safety valve mechanism and fabricating method of the same | Mitsunori Hara, Nobuhiro Nagao, Tooru Amazutsumi | 1989-02-14 |
| 4783383 | Sealed type battery provided with safety valve means and method of manufacturing same | Toyoji Machida, Satoshi Narukawa, Akiyoshi Sakai, Nobuhiro Nagao, Yoshihiro Tobita +1 more | 1988-11-08 |