Jisaku Okada was a Japanese Navy Captain

Captain (naval)

Captain is the name most often given in English-speaking navies to the rank corresponding to command of the largest ships. The NATO rank code is OF-5, equivalent to an army full colonel....

. During his career he was the commander of the seaplane tender Notoro and aircraft carrier Ryujo. A couple of months before the start of the Second World War he was given the command of the Kaga

Japanese aircraft carrier Kaga

Kaga was an aircraft carrier of the Imperial Japanese Navy , named after the former Kaga Province in present-day Ishikawa Prefecture...

. He was KIA during the Battle of Midway

Battle of Midway

The Battle of Midway is widely regarded as the most important naval battle of the Pacific Campaign of World War II. Between 4 and 7 June 1942, approximately one month after the Battle of the Coral Sea and six months after Japan's attack on Pearl Harbor, the United States Navy decisively defeated...

 wheh the ship was attacked by American dive bombers. Okada was posthumously promoted to Rear admiral

Rear Admiral

Rear admiral is a naval commissioned officer rank above that of a commodore and captain, and below that of a vice admiral. It is generally regarded as the lowest of the "admiral" ranks, which are also sometimes referred to as "flag officers" or "flag ranks"...

.