Short answers, pulled from the story.
Minister for Foreign Affairs Hachiro Arita first coined the term on the 29th of June 1940. He announced the name by radio address after renaming the union from its previous proposal.
Prime Minister Fumimaro Konoe and Minister for Foreign Affairs Hachirō Arita listed permanent stability of Eastern Asia, neighbourly amity and international justice, joint defence against communism, creation of a new culture, economic cohesion and co-operation, and world peace as the six purposes. These vague points were designed to make people more agreeable to militarism and collaborationism.
U.S. President Franklin D. Roosevelt ordered a trade embargo on steel and oil because Japan was completely dependent on other countries for these natural resources. This embargo prevented Japan's military from fighting for long without imports.
Hideki Tojo, Zhang Jinghui, Wang Jingwei, Ba Maw, Subhas Chandra Bose, José P. Laurel, and Prince Wan Waithayakon attended the conference. The common language used by the delegates during this meeting was English.
The union collapsed with Japan's surrender to the Allies in September 1945. It failed because it operated not for the betterment of all Asian countries but solely for Japan's interests, leading to a lack of real unity between the government and nationalist leaders.