ノーベル財団　「カズオ・イシグロの出身国、区分は日本で２５人目」
https://www.nobelprize.org/nobel_prizes/lists/countries.html

公式でも日本扱い
ノーベル財団の公式HP国別受賞者 　Japan（２５）
Japan (25)　The Nobel Prize in Literature 2017　Kazuo Ishiguro

The Nobel Prize in Literature 1994
Kenzaburo Oe
"who with poetic force creates an imagined world, where life and
myth condense to form a disconcerting picture of the human predicament today"

The Nobel Prize in Literature 2017
Kazuo Ishiguro
"who, in novels of great emotional force, has uncovered
the abyss beneath our illusory sense of connection with the world"