A blackbelt is considered an expert in karate. He/she is called Sempai. However you have to attain 3rd Dan to become an instructor.
the highest rank in karate
No he is not. He does not really take karate.
Certainly! I have had the honor of training with two of them, both natives of Okinawa.
it would take 3 or 4 years to get a black belt
No, there is no restriction on belt colors in the US. In some styles, red indicates a level in the kyu range. In traditional Okinawan karate, red indicates someone that is 9th or 10th degree blackbelt.
No Jaden Smith is NOT a black belt, currently in the Karate Kid movie 2010. On a interview with David Letterman he said they do not use belts in wushu.
It depend on the style of karate. In my style, a 6th dan is a plan black belt with the name on one end and the style on the other. In some styles I have seen a red and black broad stripe type belt worn.
That will depend on you school and style of karate. There are different kata in every system. Typically it takes 15 to 20 kata to reach black belt, in addition to the other requirements.
LADY-CHICA SELENA was awarded a POSTHUMOUS BLACKBELT in DRAGON KENPO KARATE by the Little Lion.
Blackbelt ranks from 1st Degree to 10th Degree. Kyu ranks from 1st kyu down to as low as 12th kyu. See the related link (lower left) for some examples of color coding.
{| |- | There are many masters. Each style of Karate has a grand master, usually a 10th Degree Blackbelt. There are dozens of variations and each has their top practitioner. Pretty much anyone that achieves a level of 7th Degree or above is considered to have mastered their style. |}
impossible