Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884170 | Multilayer printed circuit board and method of producing the same | Norio Sengoku, Fumiyuki Kobayashi | 1989-11-28 |
| 4614559 | Method of fabricating multilayer printed-circuit board | Hisato Shirasawa, Norio Sengoku | 1986-09-30 |