Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365250 | Garage door operation control apparatus | Shigeru Matsuoka, Takeshi Tokunaga, Seiji Yonekura, Kenji Nakamura | 1982-12-21 |
| 4328540 | Door operation control apparatus | Shigeru Matsuoka, Toshio Tsubaki, Takeshi Tokunaga, Seiji Yonekura, Kenji Nakamura | 1982-05-04 |