Ryu-te (Japanese: 琉手, Hepburn: Ryūte) is an Okinawan martial art founded by the late Seiyu Oyata (1928–2012) (親田清勇, Oyata Seiyū). The word Ryū-te is a shortened form of Ryūkyūte (琉球手 "Ryūkyū hand").  Ryukyu is the original name of Okinawa prior to it becoming part of Japan. Before 1995, Oyata referred to his style as Ryukyu Kempo (琉球拳法), but eventually renamed it "Ryu-te" as Ryukyu Kempo was a reference to all styles originating in Okinawa rather than to any one particular style. Ryu-te emphasizes effective self-defense while deliberately minimizing the harm to the opponent. Its practitioners consider Ryu-te neither a sport nor a form of exercise, but rather a method of training the body and mind for the betterment of mankind.
 Technically, Ryu-te is characterized by combining joint manipulation techniques  取手術  (tuite jutsu) with effective strikes to the body's weak points 急所術 (kyusho jutsu). These terms, which have become well known among martial artists, were originally introduced to the United States by Oyata in the early-1980s.
 Unlike many styles of karate and other Asian martial arts which are derived from publicly taught styles popularized by notable practitioners such as Gichin Funakoshi, Ankō Itosu, Sokon Matsumura and Tode Sakugawa, Ryu-te is principally derived from private, family styles. Oyata first learned Okinawan weapons (kobudo) from Uhugushiku, a bushi and retired palace guard. He also studied with Wakinaguri, whose family was descended from the Chinese families who emigrated to Ryukyu during the Ming Dynasty. Ryu-te is also influenced by Shigeru Nakamura's Okinawan Kenpo, as Oyata was a member of the Okinawa Kenpo Karate Kobudo Federation from the time of Uhugushiku and Wakinaguri's passing until Nakamura's death in 1968.
 The word Ryu-te is a concatenation of two kanji:
 琉 (Ryū) is the first character of 琉球 (Ryūkyū) which is the name originally associated with the islands now known as Okinawa. Oyata chose to use this character in order to honor the Ryukyu Kingdom and the goals of developing a peaceful and productive society. In addition, Ryu can mean "to float", which is intended to provide a description of both how the hands should move during techniques as well as the calm state of the practitioner's mind.
 手 (Te) is the word for "hand" which refers back to both the part of the body as well as the indigenous Okinawan art of the same name (Te).
 The basic philosophy of Ryu-te is one of life protection. This can be seen in Oyata's book Ryu-Te No Michi with his translation of budo (武道, budō). Budo is commonly translated as "martial way" or "martial art", however, Oyata prefers to translate it as "life protection art". This interpretation stems from an analysis of the first kanji Bu (武). From an etymological perspective, it is composed of two kanji: 止 (tomaru) which means "to stop" and 戈 (hoko) which means "spear". Thus the underlying meaning of 武 can be thought of as "to stop fighting" rather than something pertaining to combat.
 This underlying goal of life protection is central to Oyata's idea that martial arts are intended to improve society. With that in mind, in 1991 Oyata introduced the concept of "Oyata Shin Shu Ho" (真手法) which embodies this philosophy.
 Oyata introduced this expression with the hope that the "true protection spirit possessed by the ancient Ryukyu warriors would be inherited by true modern practitioners". He also explains that the first word, Shin, has several homophones in Japanese and while he chose to use 真, he had the other meanings in mind as well. The other kanji are:
 Keeping all of these ideas in mind, Oyata's intended interpretation of Oyata Shin Shu Ho is "to strive to attain true moral goodness and to express it through one's every action".
 To further reinforce the importance of these ideals, in 1994 Oyata began to induct members of his organization into the Oyata Shin Shu Ho group. These are senior members of his organization who Oyata feels embody this idea.
 Oyata's first introduction to martial arts came from his father, Kana Oyata, who was a champion in OKinawan Wrestling or  Tegumi. During World War II, he was introduced to several martial arts and trained in judo, iaido and kendo after returning to Okinawa after the war ended. Then, shortly after World War II, Oyata met Uhugushiku on a beach in Teruma. Uhugushiku was an Okinawan bushi and was a retired gate guard. During this time karate was taught openly as a public art, however, Uhugushiku's art was only taught within his family, handed down through generations. As a result, he initially would not teach Oyata, but upon learning that Oyata was related to Jana Ueekata, Uhugushiku agreed to teach him. Uhugushiku was an expert in Okinawan weapons, in particular the bo. He passed on his knowledge of weapons as well as his knowledge of tuite to Oyata.
 Later, Uhugushiku introduced Oyata to his good friend, Wakinaguri. Wakinaguri was also a bushi and while of Chinese descent, was 6th generation Okinawan. Wakinaguri taught Oyata his family's style of martial arts (to-te or "Chinese Hand") which included the pressure-point strikes later popularized by Oyata in the United States. Since neither Uhugushiku nor Wakinaguri had children to whom to pass on their arts, Oyata became the inheritor of both.
 After Uhugushiku and Wakinaguri died, Oyata sought other karate masters to continue his training. He joined several research groups and trained directly with Shigeru Nakamura. Under Nakamura, Oyata learned 12 basic empty-hand kata that are practiced in Ryu-te today and helped establish Bogu Kumite as the "sporting" aspect of Okinawan Kenpo.
 In the late 1960s, several Americans servicemen began to train with Oyata and, in 1977, several of Oyata's senior American students (Jim Logue, Bill Wiswell, and Greg Lindquist) began to organize within the United States. They brought Oyata to Kansas City, Kansas and established the "Ryukyu Kempo Association". Then in 1995, since Ryukyu Kempo became a generic term for any forms of karate from Okinawa, he renamed his organization to the "Ryu-te Association".
 In the 1980s, Oyata began to broaden the knowledge of the general martial arts public by introducing the concepts of tuite and kyūsho jutsu that have influenced the way in which karate is taught in the modern day.
 At the present time (2015), there are no schools affiliated with Oyata's Ryu-Te Association outside of
the North American Continent.
 Oyata stressed that the kata form the foundation of Okinawan life protection arts as the techniques and most important concepts are contained within. The twelve basic kata taught to Oyata by Nakamura came from a variety of sources, reflecting the different influences on Okinawan Kenpo and, through Nakamura, on Ryu-te. According to Oyata, the source for each kata is listed below:
 Pinan Shodan, Pinan Nidan, Pinan Sandan, Pinan Yondan, Pinan Godan
 Niseishi
 Ryu-te incorporates Okinawan weapons, as the study of weapons supplements the empty-hand techniques as an integral component of training. Practitioners study the interrelationship between empty-hand movements and weapons techniques, with an emphasis on the value of weapons training in the perfection of empty-hand movement. Weapons include bo, jo, eiku, tan bo, tonfa, nunchaku, chizikun bo, sai, nunte bo, manji sai, kama, and suruchin.
 Below is a partial list of weapons kata included in Oyata's art
 (6' staff)
 (5' staff)
 (4' staff)
 (Boat oar)
 Nunte
(Bo with manji sai tip)
 Nunte No Kata
 Tanbo
(2' staff)
 (Sickle)
 (Hand staff)
 Training aims to improve flexibility, strength, stamina, coordination, and balance by requiring students to push themselves to and stretch beyond their physical limits. Physical training also functions as a means to spiritual attainment (i.e., improved mental and physical discipline, greater vigilance, and increased self-confidence.)
 Students are required to learn and live by a basic moral code, expressed in five "Dojo Kun" and ten "Guiding Principles." Similar Dojo Kun are used in many Japanese martial arts; the English translation used for the Ryu-te Dojo Kun is:
 The Guiding Principles
 The Dojo Kokoroe (Principles) were originally from Nakamura and not Taika. Though these are good tenets to live by, Taika felt you should memorize his motto; 'Strive to attain true moral goodness, and express it through one's every action.'
The following articles were written so that those who seek the way of karate will always be aware of their guiding principles.