| No. | Subject | Institution |
|---|---|---|
| 1. | Legal English | Hitotsubashi University |
| 2. | Business Law | Hitotsubashi University |
| 3. | International Business Law | Hitotsubashi University |
| 4. | Business Law | Hitotsubashi University |
| 5. | Advanced Commercial Law 2 (Sales) | The University of Tokyo |