Notes - Segment Information, Etc.
| Concept |
2018-01-01 to 2018-12-31 |
2017-01-01 to 2017-12-31 |
|---|---|---|
| Notes - Segment information, etc. | ||
| Notes - Segment information, etc. | ||
| Notes - Information associated with reportable segments | ||
| Information for each of main customers |