Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4293891 | Natural air cooled rack for vertically disposed printed boards | Kiyoshi Matsui, Katsuyuki Arai | 1981-10-06 |
| 4226491 | Electronic device having a printed circuit board unit therein | Kazuo Kazama, Akira Oka, Masayoshi Shigihara | 1980-10-07 |