Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858677 | Automobile air-conditioning apparatus with air blower control | Shigetoshi Doi, Yoshiaki Nagayama, Katsumi Iida | 1989-08-22 |
| 4827730 | Troubleshooting apparatus for automobile air-conditioning system | Shigetoshi Doi, Yoshiaki Anan, Hirofumi Nagaoka, Katsumi Iida | 1989-05-09 |
| 4800951 | Air conditioner system for automobiles with rear seat occupant sensor | — | 1989-01-31 |