Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318837 | Soundproofing materials | Eizo Asakura, Mitsumasa Oku, Takeshi Hamabe, Motoi Kitano | 1994-06-07 |
| 5310598 | Radio wave absorbing material | Eizo Asakura, Mitsumasa Oku, Kouziro Matsuo, Hidenosuke Nakamura | 1994-05-10 |