They are demanded at least one share of 20,000 yen a year as supporting fee. All the members can receive some benefits. Also, they have a right to contribute their manuscripts. Annual membership fee is 4,000 yen. The rights are guaranteed.
Membership is open to any one who approves of the activities of the society.
You can apply for membership any time. If you are a student, however, you should be required for signature of your supervisor. A fiscal year of JSAS is from the first of March through the last day of February, the next year. No matter when you enter the society, you are asked for the full membership fee for a year.