Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877565 | Method of manufacturing circuit component such as stator for variable resistor | Hiroji Tani, Tsutomu Yokoi | 1989-10-31 |
| 4839960 | Method of manufacturing circuit component such as stator for variable resistor | Tsutomu Yokoi, Hiroji Tani, Norio Fukui, Keizou Yamamoto | 1989-06-20 |
| 4833004 | Structure of copper conductor and method of forming same | Atsuo Senda, Takuji Nakagawa | 1989-05-23 |