Izumi

Izumi is also used as a masculine name in Japanese. However, it's more common for females. So, I think that the "Gender" of this name should be changed from "Feminine" to "Feminine & Masculine". For evidence of Izumi also being used as a masculine name, see comments below this one.

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Sources: https://en.m.wikipedia.org/wiki/Unisex_name
https://forebears.io/x/forenames/izumi
https://en.m.wikipedia.org/wiki/Izumi

Also a male name.

Izumi, written as the kanji "泉" is currently 468th place in terms of kanji in Japan, among females.

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(source: http://5go.biz/sei/cgi/ninki2.htm).

In the USA (2014) 11 baby girls were given Izumi.

Izumi is mostly feminine, but there are males named this as well, one of them being Democratic Party of Japan politician and member of the House of Representatives in the Diet, Izumi Yoshida (1949-).