Answer by taking a quote from the following article:

Yoko Ono (born February 18, 1933) is a Japanese multimedia artist, singer, songwriter, and peace activist who is also known for her work in performance art and filmmaking. She performs in both English and Japanese. She is known for being the second wife and widow of singer-songwriter John Lennon of the Beatles. Ono grew up in Tokyo and also spent several formative years in New York City.

Ono was born on February 18, 1933, in Tokyo, Japan, to Isoko Ono (Xiao Ye Ji Zi , Ono Isoko) and Eisuke Ono (Xiao Ye Ying Fu , Ono Eisuke), a wealthy banker and former classical pianist. Isoko's father was ennobled in 1915. Isoko's maternal grandfather Zenjiro Yasuda (An Tian Shan Ci Lang , Yasuda Zenjiro) was an affiliate of the Yasuda clan and zaibatsu. Eisuke came from a long line of samurai warrior-scholars. The kanji translation of Yoko (Yang Zi ) means "ocean child." Two weeks before Ono's birth, Eisuke was transferred to San Francisco by his employer, the Yokohama Specie Bank. The rest of the family followed soon after, with Ono meeting her father when she was two. Her younger brother Keisuke was born in December 1936. Ono was enrolled in piano lessons from the age of 4. In 1937, the family was transferred back to Japan and Ono enrolled at Tokyo's elite Gakushuin (also known as the Peers School), one of the most exclusive schools in Japan. The family moved to New York City in 1940. The next year, Eisuke was transferred from New York City to Hanoi, and the family returned to Japan. Ono was enrolled in Keimei Gakuen, an exclusive Christian primary school run by the Mitsui family. She remained in Tokyo throughout World War II and the great fire-bombing of March 9, 1945, during which she was sheltered with other family members in a special bunker in Tokyo's Azabu district, far from the heavy bombing. Ono later went to the Karuizawa mountain resort with members of her family. Starvation was rampant in the destruction that followed the Tokyo bombings; the Ono family were forced to beg for food while pulling their belongings with them in a wheelchair. Ono said it was during this period in her life that she developed her "aggressive" attitude and understanding of "outsider" status when children--who were once well-to-do--taunted her and her brother. Other stories tell of her mother bringing a large number of goods with them to the countryside, where they were bartered for food. In one anecdote, her mother traded a German-made sewing machine for 60 kilograms (130 lb) of rice to feed the family. During this time, Ono's father, who had been in Hanoi, was believed to be in a prisoner of war camp in China. However, unbeknownst the them, he remained in the city. Ono told Amy Goodman of Democracy Now on October 16, 2007, that "He was in French Indochina, which is Vietnam actually.... in Saigon. He was in a concentration camp." By April 1946, Gakushuin was reopened and Ono re-enrolled. The school, located near the Tokyo Imperial Palace, had not been damaged by the war, and Ono found herself a classmate of Prince Akihito, the future emperor of Japan. She graduated in 1951 and was accepted into the philosophy program of Gakushuin University as the first woman to enter the department. However, she left the school after two semesters.

What are the names of Yoko Ono's parents?
Isoko Ono (Xiao Ye Ji Zi , Ono Isoko) and Eisuke Ono (Xiao Ye Ying Fu , Ono Eisuke),