The Japanese Ground Self-Defense Force uses a modified version, too, and you can spot the flag on cans of Asahi beer or in the flag of the Asahi Shimbun newspaper company.

3) The dimensions of the national flag are extremely specific. The length and height must be at a ratio of 3 to 2 and the red circle must be exactly centered and 3/5 the width of the flag. 4) The flag ...