Yoshioka Hansaku

Born on 8 May 1869 in Higo Province (now Uki, Kumamoto Prefecture), the eldest son of a Higo samurai. In 1891, he graduated from the 18th term of the Imperial Japanese Naval Academy and became an ensign in the navy. During the First Sino-Japanese War, he served under Captain Heihachirō Tōgō as a squadron officer on the protected cruiser {{ship|Japanese cruiser|Naniwa||2}}. After serving as a navigation officer on the {{ship|Japanese battleship|Fuji||2}}, he graduated from the Naval War College in 1901. In 1904, he became a major in the Navy and participated in the Russo-Japanese War as chief gunnery officer of the Second Fleet flagship {{ship|Japanese cruiser|Izumo||2}} in the Battle of Tsushima. In 1912, he became a member of the Grand Mourning Ceremony Navy Affairs Committee and a naval drill judge.

After serving as captain of the {{ship|Japanese cruiser|Hashidate||2}}, he was appointed assistant captain of the {{ship|Japanese cruiser|Asama||2}} on 23 August 1914. This was the day that Japan declared war against the German Empire, and Yoshioka went to war in World War I. Initially, he was part of the 1st Southward Expeditionary Force led by Yamaya Tanin to search for the German fleet led by Maximilian von Spee, and engaged in the occupation of the South Seas Mandate.『海戦史に学ぶ』「ドイツ太平洋艦隊との海戦 Next, he was part of the US-led branch led by Keizaburo Moriyama to protect trade from South America to North America. However, 31 January 1915 off Mexico, the ship struck an uncharted rock at the entrance to the bay.『浅間、日進座礁査問付査定書(2)』

In December 1915 (1915), he became captain of the {{ship|Japanese cruiser|Tsukuba||2}}. She was commissioned by the Taishō Emperor at a fleet review held the following year.『拝謁名簿』 After serving as captain of the {{ship|Japanese battleship|Kongō||2}}, he was promoted to Rear Admiral in 1917 and became the second director of the Naval Education Headquarters. On 1 December 1919, he became Chief of Staff of the First Fleet, the following year he became Chief of Staff of the Combined Fleet, in 1921 he was promoted to Vice Admiral and Director of the Naval Gunnery School and in 1923, served as a member of the Naval General Staff Council. He became a reserve officer in 1924.

As a vice admiral, he was awarded the Order of the Golden Kite, 4th class. He was also known as the "God of Gunnery". He died in 1930. His commandment name was Seichuin-den Atsuo Tanchu Daishi and his grave is in Ogawa, Uki, Kumamoto Prefecture.

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{{DEFAULTSORT:Hansaku, Yoshioka}}

Category:Imperial Japanese Navy officers

Category:1869 births

Category:1930 deaths

Category:Japanese military personnel of the First Sino-Japanese War

Category:Japanese military personnel of the Russo-Japanese War

Category:People of Meiji-era Japan

Category:People from Kumamoto

Category:Recipients of the Order of the Golden Kite