Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873644 | Guide system for a working machine having a product identifying system | Masahiko Hayashi | 1989-10-10 |
| 4868752 | Boundary detecting method and apparatus for automatic working vehicle | Masahiko Hayashi | 1989-09-19 |
| 4832436 | Optical fiber distribution apparatus | Shigenori Goto, Saburo Mase, Hirofumi Tayama, Tadashi Hara | 1989-05-23 |