Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424974 | Ferro fluidic seal | Yasunaga Mitsuya, Kunio Hoshiya, Shigemitsu Oguchi | 1984-01-10 |
| 4307425 | Breathing device for a closed housing of a magnetic memory device | Akio Tago, Shigemitsu Oguchi, Shigehisa Hukui | 1981-12-22 |