Fist Symbol for Empty Hand in Chinese / Japanese...

空手拳法 is the Kanji title for Kempo Karate.

The first two characters mean “karate” - technically they express “empty hand.”

The last two express “fist law” which is Romanized from Japanese as “Kenpo” or “Kempo.”

That “empty hand” translation can be understood better when you grasp the idea that karate is a martial art without weapons (other than the weapons organic to your body, such as your foot, hand, fist, etc). When you practice karate, you do so with empty hands (no weapons).

Note: There is also an antiquated way to write karate. It has the same pronunciation but a different first character which means “Tang” as in the Tang Dynasty. Some dojos use that form - let us know if you need that alternate form, and we'll add it.

唐手道 is the alternate title for Karate-do.

This title uses a character, 唐, which represents the Tang Dynasty of China. Thus, this is often translated as the “Tang Hand Way” or incorrectly, “Tang Fist Way.”
I have also seen some call it “China Hand Way.”
Many in Korea refer to and romanize these characters as “Tang Soo Do” (당수도) where these characters refer to a kind of Korean style of Karate.

There is not a lot of information on this title but some believe that a simplified form of Kung Fu that started in China and ended up very popular in Japan used this title initially. It was later changed in Japan to a different Karate title which means “Empty Hand” (as in, without weapons).

Note: When used in Korean, this is pronounced 당수도. This title is often romanized as “Tang Soo Do,” “Tangsudo,” “Dang Su Do,” or “Dangsudo.” The last two romanizations on that list are the official Korean government romanization, though martial arts schools tend to use other non-standard versions.

The first two characters mean “fist law” which is Romanized from Japanese as “Kenpo” or “Kempo.”

The last two are a secondary way to express “karate.”

Notes:
The more common way to express “karate” is literally “empty hand” (meaning “without weapons in your hand”). This version would be translated literally as “Tang hand” (as in the Tang Dynasty) or “China hand” (sometimes “Tang” means “China” in Japanese). Even though the character for “Tang” is used instead of “empty,” it's still pronounced “kara-te” in Japanese.

拳法唐手 is not commonly used in China - so please consider it to be a Japanese-only title.

Many Japanese people will say the last two Kanji are the old and antiquated way of saying Karate. This fact does not stop this title from existing, as these four characters are often seen in Kenpo / Kempo Dojos around the western world.