From the information given in the question, I'm not able to judge how it could affect your business. If your violation was a serious issue, your business activities may be regulated by some related laws. With respect to the immigration code, you will not be rejected to enter Japan unless you have been sentenced to imprisonment, or imprisonment without work for one year or more, or an equivalent penalty. The immigration agency will check your background from their records and criminal record when your application for any type of visa status is examined.
What kind of background checks are required for immigrant investors going to Japan?
I am interested in setting up a business in Japan. However, a few years ago I lost one of my finance-related licenses but have been working to get it back. Does that kind of thing or any other criminal act affect my ability to do business in Japan as an investor?