I've had to remove and ban a bunch of cruft from this thread. If you think you can be cute by calling the Japanese or the Jews by slurrish nicknames, please go post elsewhere, because you will be banned from this subreddit.
Interesting article entitled "The Jews of Japan" from the Jerusalem Center for Public Affairs.
"the government resisted determined and repeated requests from Nazi German officials for assistance in the relocation and extermination of the Jews in the Shanghai ghetto".
"Explicit anti-Jewish activity in Japan has been minimal. There are some accounts of Jews losing jobs during World War II. Music schools where Jewish performers taught were closed. On the whole, however, German advice and encouragement for the Japanese to establish anti-Jewish policies met with resistance from Japanese officials. Some of this reluctance may have been influenced by hopes of access to Jewish capital. Nevertheless, on December 31, 1940, Japanese Foreign Minister Matsuoka Yosuke told a group of Jewish businessmen, "I am the man responsible for the alliance with Hitler, but nowhere have I promised that we would carry out his anti-Semitic policies in Japan. This is not simply my personal opinion, it is the opinion of Japan, and I have no compunction about announcing it to the world."
So it looks as though this was something the Japanese and Germans didn't see eye to eye about.
Though this from the Jewish Virtual Library on "Japan & Jews During the Holocaust" says "The Japanese view of the Jews probably grew out of the complicated mixture of racism, nationalism, and fear of foreign conspiracy and secret control of international events that dominated Japanese national attitudes towards all foreigners, especially those living in western countries. Significant anti-Semitism first appeared in Japan after World War I and was probably part of the extremist, anti-Communist reaction against the Bolshevik Revolution that strongly emphasized the Jewish “nature” of the revolution, its ideology, and its leaders. With the signing of the GermanJapanese Anti-COMINTERN Pact in 1936 and the Tripartite Treaty of September 1940, anti-Semitism gained a more formal footing in some of Tokyo's ruling circles. Meanwhile, the Japanese public was exposed to a campaign of defamation that created a popular image known as the Yudayaka, or the "Jewish peril.""
The Wikipedia article on German-Japanese relations also says that " The Holocaust was systematically concealed by the leadership in Tokyo, just as Japanese war crimes, e.g. the situation in China, were kept secret from the German public". Citation is "Martin, Bernd and Gerhard Krebs (Hg.). (1994) Formierung und Fall der Achse Berlin-Tôkyô. München: iudicium".
As a follow-up question, is there any information available about how post-war Japan dealt with or perceived Jews?