Rank Insignia Comparison Table USN Rank Insignia Officers (1941-43) Enlisted (1941-43) IJN Rank Insignia Officers (1931-45) Enlisted (1931-42) Enlisted (1942-45)
  IJN Petty Officers and Seamen Training Insignia 1931-1942
 
航空 [kōkū] – Aviation   [] – Gunnery
Flying Training Navigator/Observer Special Training Regular Training Advanced Training Extra Training
運用 [unyō] – Seamanship   水雷 [suirai] – Torpedoes   機雷 [kirai] – Mines
Regular Training Advanced Training Regular Training Advanced Training Regular Training Advanced Training
測的 [sokuteki] – Fire Control   航空兵器 [kōkū heiki] – Aviat. Ordnance   航空工 [kōkū kō] – Aviation Engineering
Regular Training Advanced Training Regular Training Advanced Training Regular Training Advanced Training
機関 [kikan] – Engineering   電機 [denki] – Electrical Engineering   信号 [shingō] – Visual Signals
Regular Training Advanced Training Regular Training Advanced Training Regular Training Advanced Training
電信 [denshin] – Telegraphy   看護 [kango] – Nursing   衣糧 [iryō] – Supply
Regular Training Advanced Training Regular Training Advanced Training Regular Training Advanced Training
工作 [kōsaku] – Construction and Repair   経理 [keiri] – Accounting   軍楽 [gungaku] - Mus
Regular Training Advanced Training Extra Training Regular Training Advanced Training Extra Training
Special Insignia   Versions for Different Types of Uniform
Fighter Pilot Bomber Pilot Nurse For summer white For winter blue For field khaki

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