Japan Open 1990
The Japan Open 1990 in badminton took place from 23 to 28 January 1990th The prize money was $ 100,000.
Final results
| discipline | winner | finalist | Result |
|---|---|---|---|
| Men's singles |
 Morten Frost
|
Poul-Erik Høyer Larsen
|
15-9, 15-4 |
| Ladies singles |
 Huang Hua
|
Zhou Lei
|
11-6, 11-0 |
| Men's doubles |
 Park Joo-bong Kim Moon-soo
|
Li Yongbo Tian Bingyi
|
3-15, 17-16, 18-13 |
| Ladies doubles |
Yao Fen Lai Caiqin
|
 Kimiko Jinnai Hisako Mori
|
7-15, 15-9, 15-10 |
| Mixed |
Park Joo-bong Chung Myung-hee
|
Thomas Lund Pernille Dupont
|
15-10, 15-12 |