Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5610960 | Fuel spacer and fuel assembly | Kensuke Tokunaga, Yasuhiro Aizawa, Junjiro Nakajima, Masana Sasaki, Masafumi Imai | 1997-03-11 |
| 4985199 | Fuel spacer of separate cell type and manufacturing method therefor | Makoto Irube, Junjiro Nakajima, Hajime Umehara, Nobuo Tada | 1991-01-15 |