Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4484251 | Current restriction element responsive to applied voltage | Sho Masujima, Yoshishige Towatari, Shoichi Iwaya, Hitoshi Masumura, Norimasa Sakamoto | 1984-11-20 |
| 4447549 | Non-linear dielectric element | Sho Masujima, Masahide Shibuya, Iwaya Shoichi, Kenichi Umeda, Yasunobu Oikawa +3 more | 1984-05-08 |
| 4404029 | Non-linear polycrystalline barium titanate-type dielectric element | Shoichi Iwaya, Hitoshi Masumura, Yoshifumi Midori, Yasunobu Oikawa | 1983-09-13 |