By nobility do you actually mean royalty?

Because landed nobility still, for all intents and purposes, existed during the pre-war period though they were officialy stripped of their titles.

The new system they adopted during the Meiji period had various levels of status with the highest tier were members of the new Diet (Japanese Parliament essentially) or were placed in high positions of power as officials in various realms and offices. Former nobles naturally went straight into this class.

After World War 2 ended, this system was abolished in favor of an egalitarian system where there were no longer any government sanctioned divisions or social classes.

Even so, the now former-former nobility maintained their ties with the royal family after the war up until today and are still pretty much de facto nobility, or at the very least considered privileged even among their wealthy peers because of their many ties to the royal family as well as their status as rich owners of business and land.

As far as I know, there are no marriages between the Japanese royal family and any European royal houses.

The closest thing to that is when the Japanese royal family married into the Korean royal family to solidify their ties to their colonies in Korea and bridge the gap between the two with a strong political marriage.

Also, the Japanese royal line is only inherited by males so unless women of the royal family marry back in or they radically decide to adopt a male into the line (though not unheard of, as far as I know this has never happened in modern times), women born into the royal family lose that status once they are married.

But even if we count these women as royalty, I do not know of any of them who have married into European during the time period you frame nor any years after that.

This is partly due to the intent on keeping the royal bloodline strong. During this time frame you ask for, the selection of a bride for the members of the Imperial house were extremely rigorous and could only come from a select number of Japanese noble households.

Fun fact, the current Empress Michiko was the very first commoner to marry into the royal family. This was a huge gesture by the current Emperor as well as the Imperial household to be a more worldly and personal figure for the Japanese people. As you can imagine, there were many hardliners who were opposed to this.

Anyways, if you indeed did mean nobility as in the aristocracy and not the royal family, then yes.

Aoki Shuuzou was born in 1844 into a samurai family, meaning he was nobility from birth.

He was sent to study in Germany and by the time his studies ended, the Meiji Restoration had begun. His noble status was changed slightly in the new system but his family was still nobility. Because of his familiarity with Germany, the ways of the West in general and the German language, he was sent back as a diplomat, slowly but surely rising in the aristocracy.

In 1887, during his tenure as Foreign Minister where most of his responsibilities involved maintaining relations with Germany, Aoki Shuuzou married the daughter of a German noble. During this time, he would have been a lower ranked noble but would eventually become a viscount.

After becoming a viscount, his daughter would go on to marry another German noble in 1904.

Fun side fact, Aoki would then become ambassador to Britain in 1894 and then the United States in 1906.

I'm sure there were others, especially since Japan sent so many students overseas to gain some experience with Western education, many of which were nobility.