History of his adventure

• July 25, 1966
  Reached the summit of Matterhorn alone.
  
  
• October 24, 1966
  Reached the summit of Kilimanjaro, the highest peak in Africa alone.
  
  
• February 5, 1968
  Reached the summit of Aconcagua, the highest peak in South America alone.
  
  
• May 11, 1970
  The first Japanese to reach the summit of Mount Everest.
  
  
• January 1, 1971
  Reached the summit of North Wall of Grand Jorus.
  
  
• July 31, 1976
  Reached the summit of El Blues.
  
  
• April 29, 1978
  First person who reached the North Pole alone by dog sled.
  
  
• August 13, 1980
  Reached the summit of Aconcagua for the second time.
  
  
• February 12, 1984
  The first person to reach the summit of Mckimley alone in winter.
  
  
• February 13, 1984
  Lost on Mckinley.