Noburu Yamada (9 February 1950 – 24 February 1989) was a Japanese mountaineer known for his extensive climbing experience in the Himalayas, including several first ascents and for his proficiency for climbing during winter. A contemporary of Reinhold Messner and Jerzy Kukuczka, Yamada reached the summits of 9 of the 14 eight-thousanders and was part of the climbing team that made the second successful winter ascent of Mount Everest. Six of these ascents were done without oxygen. He died while climbing Denali in 1989. 4807 Noboru, a main-belt asteroid is named after him.
Source: “Noboru Yamada”, English Wikipedia (CC BY-SA 4.0), excerpt