Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5538832 | Developing solution for producing printed circuit boards and a process for producing printed circuit boards wherein the developing solution comprises a quaternary ammonium hydroxide and a quaternary ammonium carbonate | Tetsuo Aoyama, Takeshi Nagasaka, Toshihiko Kobayashi, Takashi Nakata, Youichi Takizawa | 1996-07-23 |
| 5076864 | Process for producing multilayer printed wiring board | Yasuo Tanaka, Koichi Nakano, Touru Nohtomi, Morio Gaku | 1991-12-31 |