The training specifically focused on the use and techniques of the katana is often referred to as "Kenjutsu." Kenjutsu is the traditional Japanese martial art of swordsmanship, and it encompasses a wide range of techniques, strategies, and principles associated with the use of the katana and other Japanese swords.

Kenjutsu training typically involves the study and practice of various aspects, including:

1. Sword techniques: Kenjutsu practitioners learn different striking, blocking, parrying, and footwork techniques specific to the katana and other sword types. They study the proper form, angles, and timing required for effective swordsmanship.
2. Kata: Kata are pre-arranged sequences of movements or forms that simulate combat scenarios. Practitioners perform these sequences solo or with a partner, practicing techniques, timing, and distance.
3. Sparring: Kenjutsu may involve controlled sparring with partners to apply learned techniques in a more dynamic and interactive setting. This allows practitioners to develop their skills, test their abilities, and refine their timing and understanding of combat situations.
4. Etiquette and discipline: Kenjutsu places a strong emphasis on discipline, respect, and etiquette. Practitioners learn the proper protocols, bowing, and traditional customs associated with Japanese swordsmanship.
5. Philosophy and mindset: Kenjutsu often incorporates the study of the philosophical and mental aspects of swordsmanship, including concepts such as focus, awareness, strategy, and the development of a warrior's mindset.

Kenjutsu is a comprehensive discipline that encompasses both physical and mental aspects of swordsmanship. It is important to note that different schools and styles of Kenjutsu may have variations in training methods, techniques, and approaches to swordsmanship.