Rank Insignia Comparison Table IJN Rank Insignia Officers (1931-45) Enlisted (1931-42) Enlisted (1942-45) Training Insignia USN Rank Insignia Officers (1941-43) Enlisted (1941-44)
  IJN Commissioned Officers Rank Insignia 1941-1945
 
大将 - Admiral, 少将 - Rear Admiral, 大佐 - Captain, 少佐 - Leutenant Commander, 大尉 - Leutenant, 少尉 - Ensign
将官 [shōkan] Admirals
大将 - Admiral 中将 - Vice Admiral 少将 - Rear Admiral
大将 [taishō] – Admiral 中将 [chūjō] – Vice Admiral 少将 [shōshō] – Rear Admiral
佐官 [sakan] Senior Officers
大佐 - Captain 中佐 - Commander 少佐 - Leutenant Commander
大佐 [taisa] – Captain
(飛行 [hikō] – Flight)
中佐 [chūsa] – Commander
(機関 [kikan] – Engineering)
少佐 [shōsa] – Leutenant Commander
(衛生 [eisei] – Medical)
尉官 [ikan] Junior Officers
大尉 - Leutenant 中尉 - Leutenant, Junior Grade 少尉 - Ensign
大尉 [taii] – Leutenant
(法務 [hōmu] – Justice)
中尉 [chūi] – Leutenant, Junior Grade
(主計 [shukei] – Paymaster)
少尉 [shōi] – Ensign
(技術 [gijutsu] – Technical)
特務士官 [tokumu shikan] Special Duty Officers
特務大尉 - Special Duty Leutenant 特務中尉 - Special Duty Leutenant, Junior Grade 特務少尉 - Special Duty Ensign
特務大尉 [tokumu taii]
Special Duty Leutenant
(工作 [kōsaku] – Construction)
特務中尉 [tokumu chūi]
Special Duty Leutenant, Junior Grade
(整備 [seibi] – Aviation Maintenance)
特務少尉 [tokumu shōi]
Special Duty Ensign
(軍楽 [gungaku] – Musical)
准士官 [jun shikan] Warrant Officers, Midshipmen and Cadets
兵曹長 - Warrant Officer 少尉候補生 - Midshipman 生徒 - Cadet
兵曹長 [heisōchō] – Warrant Officer 少尉候補生 [shōi kōhosei] – Midshipman 生徒 [seito] – Cadet

Sources:
1. Gary Nila, “Japanese Naval Aviation: Uniforms & Equipment 1937-1945”, 2002
2. 日本海軍軍装図鑑: 幕末・明治, Etsuka Yagyu “Uniforms of Japanese Navy 1867-1945”, 2003
3. Gary Nila, Robert A. Rolfe “Japanese Special Naval Landing Forces: Uniforms & Equipment 1932-1945”, 2006
4. 大日本帝国陸海軍―軍装と装備 明治・大正・昭和, Tadao Nakata “Imperial Japanese Army and Navy Uniforms & Equipment”,2009