Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9755226 | Nickel-hydrogen storage battery and battery pack | Shinichi Sumiyama, Yasushi Nakamura, Akiko Okabe | 2017-09-05 |
| 9627657 | Cylindrical alkaline storage battery | Shinichi Sumiyama, Hideaki Ohyama, Kiyoshi Hayashi | 2017-04-18 |