Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807444 | Air flow control device | Katsuyuki Aoki, Hiroyuki Umemura, Tetsuji Okada, Kenji Matsuda, Hidenori Ishioka +3 more | 1989-02-28 |
IA
Isao Arai
Overall (1989): #102,208 of 140,708Top 75%
1
Patents 1989