Whose head is on all kinds of yen?

The figures of 1 and 1 ten thousand yuan are Fukuzawa Yukichi ふくざわゆきち.

2. What is the name of this 5000-yuan note?

The figure on the thousand yuan note is Hideki Noguchi.

Extended data:

Most of the banknotes commonly used in the world are printed with portraits, and almost all of them are solo politicians, or founders of the country, or heirs to the throne, or supreme rulers of a certain period.

187 1 after the birth of the yen, 1984 before the new Japanese currency was issued, the portraits of politicians were printed on paper money. For example, the paper money issued by 188 1 bears the portrait of the magic queen. Later, ten thousand yuan and five thousand yen banknotes were printed with the portrait of Shoto Kutaishi, and one thousand yuan banknotes were printed with the portrait of Ito Bowen, symbolizing imperial power and power.

The paper money circulated since 1984 is printed with reformers such as writers and scientists during the Meiji Restoration to express Japan's nostalgia for the Meiji Restoration, which is the beginning of Japan's farewell to the Middle Ages and its March towards modern times.

References:

Yen-Baidu Encyclopedia