Professor Dr. Hasan Ko Nakata, Phd. an expert in Political Science and Shari'ah was one of 9 Japanese nationals who reportedly joined Dawlah Islamiyyah (IS).
Hasan Ko Nakata, who was the President of the Muslim Association of Japan reverted to Islam in his third year at the faculty of Islamic Studies at Tokyo University. Before that, he was very acquainted with the Christian religion. It was no surprise that during his earlier years at Tokyo University, he joined the Bible study group. It was there where he got familiar with the studies of Comparative Religion
He studied the subject of Comparative Religion in Christianity, Judaism, Shinto, Buddhism and Islam. When weighing and comparing for about a year he felt that the teachings of Islam is the most comprehensive. “I found that it was Islam which is the most comprehensive, rational and consistent system of life, and finally by Allah SWT's mercy I decided to embrace Islam,” he said. He thus added the name “Hassan” in front of his original name. He had looked into the tariqat of Naqshabandiyah and Syaziliah. “However, I was not a good student,” he said.
After getting his degree, Hassan wanted to explore into Islam deeper. But there had not been any master program on Islamic Studies in Japanese Universities. It was also difficult to get Islamic books in Japanese language. Fortunately, not long after that, Tokyo University opened a master program on Islamic Studies. ''I became the first and the last Muslim student in the field of Islamic Studies at Tokyo University for 25 years,'' said this Proffesor.
After finishing his master at Tokyo University, he continued his doctorate study at Cairo University. His dissertation was on the Political Thinking of Ibn Taymiyah (al-Fikratu al-Siyasatu 'inda Ibni Taymiya). He explained in that dissertation the uniqueness of the political thinking of Ibnu Taymiyah in the history of political thinking and his influence on the contemporary political movement, which includes Hizbut Tahrir. After passing his doctorate, Hassan became a researcher at the Japanese Embassy in Saudi Arabia (1992-1995). No wonder he could speak Arabic fluently.
His activities in da'wah in the Country of Sakura can be classified as prominent. The characteristic of the Japanese people which is indifferent towards religions drove him to find a way so as to be able to propagate Islam. Moreover, there were very few dai'e's with quality.
The only best way to spread Islam in Japan, according to him, is through the personal influence of the workers of da'wah who have a broad and deep knowledge about Islam with a good personality, as well as an understanding of the Japanese culture.
He, together with the Japanese Muslim who are the minority, conducted various efforts, which included translating a number of classical books such as “Tafsir al-Jalalain”, “al-Siyasah al-Syar'iyyah of Ibn Taimiyyah” and “Zad al-Mustaqni' al-Hujawi al-Hanbali”, as well as publishing monthly magazines that were disseminated for free to all Japanese Muslims and throughout the world as an information and communication media.
Hasan Ko Nakata had served as the President of the Muslim Association of Japan while teaching Islamic Studies at Doshisha University, Kyoto. A majority of his students were in fact Christian. Being the principal for four years at Doshisha, Hassan managed to lure four of his students, who were originally atheist, to convert to Islam.
His name stood out in Indonesia when there was an International Khalifah Conference organized by Hizbut Tahrir at the Utama Gelora Bung Karno Stadium, Jakarta, August 2007. He was one of the speakers of the akbar activities which struck the world at that time. Before that, not many Muslims of Indonesia knew of a Japanese intellectual whose attention on the da'wah of Islam is so great.
Earlier, Hasan believed in the conception of Hizbut Tahrir in terms of the establishment of the caliphate, however with the passing of time and review of thoughts, Hassan Ko Nakata changed.
The impossibility of the establishment of the caliphate with only da'wah and thoughts without the true jihad (Qital) just like Hizbut Tahrir became the main reason for Hasan Ko Nakata to make hijrah to Darul Islam. Allahu Akbar!!!