Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880474 | Method and apparatus for operating vacuum cleaner | Haruo Koharagi, Tsunehiro Endo, Kunio Miyashita, Yoshitaro Ishii, Fumio Jyoraku +5 more | 1989-11-14 |
| 4875539 | Electric power steering control system | Toshimi Abukawa, Katsuji Murumoto, Toshiyuki Koterazawa, Mitsuyuki Hombu, Tadashi Takahashi +9 more | 1989-10-24 |
| 4865148 | Vehicle height control apparatus responsive to power steering operation | Katsuji Marumoto, Hisatugu Ishikura, Hirohisa Yamamura, Toru Tatsuzaki, Toshimi Abukawa +5 more | 1989-09-12 |
| 4823037 | DC Electric motor having field poles of permanent magnet | Toshimi Abukawa, Noriyoshi Takahashi, Toshio Tomite | 1989-04-18 |