The closest names I could find for that are:
勇心 : isami , yuushin (bravery + heart)
精心 : akimi (energy/vigor + heart)
剛心 : takemi (strength/fortitude/firmness/rigidness + heart)
壮気 : souki, takeoki (manliness/courage/vigor + mind/spirit)
勇気 : yuki, isaki, yuuki (bravery + mind/spirit)
Some baby names that mean strong-hearted are as follows: The Irish names Darroch, Daric, Darick, Darrick, and Darock all mean strong; oak-hearted. The English name Cayden means Heart of a Warrior. The French names Chane, Chaney, Chayne, Cheyne all mean oak-hearted. The Japanese name Kenshin means heart of the sword.
strong storms
names meanings do not change when translated in Japanese
Japanese word "mune" is literally "chest". In context, though, it may mean "heart" in an emotional expression, such as in English we say "heavy heart" or "my heart leaped"
names do not translate meanings do
Names in Japanese are not always meaningful. Whether or not they carry any meaning and if yes what they mean depends on their spelling; names in Japanese can have several spellings so a certain answer is impossible.
kokoro - this can also mean heart
powerful, mighty
Some Japanese girl names that mean lonely are Sabishii, Kodoku, and Hitori.
whats it mean in English names don't translate
If by English names you mean into romaji - which is a readable version of Japanese then yes there is. An example of what I mean is; 日本国 - Nihonkoku Meaning Japan. http://www.romaji.org/
It means strong or tough.