Permanent residency can be achieved after fulfilling certain conditions, including:
a. Have residency status and have lived continuously for more than 10 years
b. Stable economic foundation (stable income)
c. If you are married to a Japanese, you must have lived for more than 3 years
d. For highly skilled professionals, such as doctors, managers of large companies etc, permanent residency can be obtained quicker, depending on the individual’s point score, you can apply as soon as 1 or 3 year