Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6338917 | Alkaline storage battery | Akihiro Maeda, Yoshio Moriwaki, Isao Matsumoto | 2002-01-15 |
| 6284215 | Manufacturing method of active materials for the positive electrode in alkaline storage batteries | Hiroyuki Sakamoto, Hidekatsu Izumi, Yoichi Izumi, Isao Matsumoto | 2001-09-04 |
| 6261720 | Positive electrode active material for alkaline storage batteries | Yoichi Izumi, Hiroyuki Sakamoto, Hidekatsu Izumi, Isao Matsumoto | 2001-07-17 |
| 6183909 | Alkaline storage battery | Akihiro Maeda, Yoshio Moriwaki, Isao Matsumoto | 2001-02-06 |
| 6129902 | Manufacturing method of active materials for the positive electrode in alkaline storage batteries | Hiroyuki Sakamoto, Hidekatsu Izumi, Yoichi Izumi, Isao Matsumoto | 2000-10-10 |
| 6042753 | Active materials for the positive electrode in alkaline storage batteries | Hidekatsu Izumi, Hiroyuki Sakamoto, Yoichi Izumi, Isao Matsumoto | 2000-03-28 |
| 6030725 | Negative electrode for alkaline storage batteries | Yoshio Moriwaki, Akihiro Maeda, Isao Matsumoto | 2000-02-29 |
| 6013390 | Alkaline storage battery | Hidekatsu Izumi, Youichi Izumi, Hiroyuki Sakamoto, Akihiro Maeda, Isao Matsumoto | 2000-01-11 |