Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874171 | Golf club set | Hiroshi Ezaki, Yoneji Kobayashi | 1989-10-17 |
| 4858677 | Automobile air-conditioning apparatus with air blower control | Shigetoshi Doi, Yoshiaki Nagayama, Yoshihiko Sakurai | 1989-08-22 |
| 4827730 | Troubleshooting apparatus for automobile air-conditioning system | Shigetoshi Doi, Yoshiaki Anan, Hirofumi Nagaoka, Yoshihiko Sakurai | 1989-05-09 |