Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4505500 | Door lock arrangement for automotive vehicle | Takayo Chikaraishi | 1985-03-19 |
| 4487441 | Child proof door locking device | Issei Miyamoto, Takayo Chikaraishi | 1984-12-11 |