Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318837 | Soundproofing materials | Minoru Yoshinaka, Eizo Asakura, Mitsumasa Oku, Motoi Kitano | 1994-06-07 |
| 5279809 | Zinc oxide crystal and method of producing same | Motoi Kitano, Sachiko Maeda, Takashige Sato, Mitsumasa Oku | 1994-01-18 |