Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5522223 | Pulse tube refrigerator | Masayoshi Yanai, Etsuji Kawaguchi | 1996-06-04 |
| 5515685 | Pulse tube refrigerator | Masayoshi Yanai, Etsuji Kawaguchi | 1996-05-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5522223 | Pulse tube refrigerator | Masayoshi Yanai, Etsuji Kawaguchi | 1996-06-04 |
| 5515685 | Pulse tube refrigerator | Masayoshi Yanai, Etsuji Kawaguchi | 1996-05-14 |