(1) Manchukuo
en.wikipedia.org/wiki/Manchukuo#Diplomatic_recognition
(section 1.3 Diplomatic recognition)

* 大日本帝国, according to Japanese Wikipedia, was the official title of Japan for 58 years, from 1889 constitution to 1947 constitution
("1889年（明治22年）の大日本帝国憲法発布時に憲法典の名称として使用されたことから権威づけられ、1947年（昭和22年）の日本国憲法施行時までの約58年間").

(2) Reorganized National Government of China
en.wikipedia.org/wiki/Wang_Jingwei_regime
(The regime officially called itself the Republic of China 中華民國; was widely regarded as a puppet state and enjoyed no diplomatic recognition, except from the states of the Anti-Comintern Pact)