yes there are.
this is where I took this
### Japanese Romanji-English translations ###
########## IJ High Command Translations ##########
Daihon'ei = Imperial General Headquarters
Dai-Nippon Teikoku Rikugun = Imperial Japanese Army
Dai-Nippon Teikoku Kaigun = Imperial Japanese Navy
############### Landunit translations ###############
butai = unit
han = squad, group section
buntai = squad
shôtai = platoon
jôba shôtai = mounted platoon
chûtai = company
daitai = battalion
ryodan = brigade
rentai = regiment
Shûdan = group
shidan = division
gun = army
dan = corps
gundan = army corps (Not Used by the IJA)
hômengun = area army (IJA Used this instead of Army corps)
hakengun = expeditionary force
Nankai Shitai = South Seas Detachment
Konoe Shidan = Imperial Guard Division
Boeitai = Defense Unit
Boeigun = Defense Army
######## Various Miscelaneous Designation ########
botai = home regiment
guntai = troops, army
hon tai = main force, main body of soldiers
kôryaku butai = invasion force
Special Task = Tokumu
Chuton Gun = Garrison army
Nanpô Chôsengun = South Korean Army
##################################################
### HQ ###
Shireibu................= headquarters
Boei Shireibu...........= Defense Command
shubitai shireibu.......= garrison headquarters
shidan shireibu.........= division headquarters
hoheidan shireibu.......= infantry group headquarters
gundan shireibu.........= corps headquarters
gun shireibu............= army headquarters
saikô shireibu..........= general headquarters
### Infantry ###
hohei = infantry
hoheishidan = infantry Division
Dokuritsu konsei ryodan = independent mixed brigade (Used primarily in China, both for garrison unit but also combat units)
### Garrisons ###
konkyochi tai = base forces (Used by the IJN on the island in the pacific theater)
Keibitai = guard unit (Garrison, Used by IJN as defensive/security part of Base Forces)
Shubitai = garrison unit (IJA Garrison unit)
Dokuritsu shubitai = Border Guards(independent garrison)
"IJA placed independent garrisons, which comprised 4 to 8 infantry batallions and poor support troops,
for the security of border area to Soviet and behind-the-front islands, for the protection of South Manchuria Railroad.
They consisted of volunteers from soldiers in reserve, but later some draft districts sent drafted men.
Many of IG were later comberted into independent combined brigades."
### Cavalry ###
Kiheishidan = Cavalry
### Militia ###
hari-tsuke shidan = pinned-up division: (hastely formed in 1945, militia)
### Marines ###
Tokubetsu Rikusentai = special naval landing party("SNLF", IJN "marine" detachment. Usually company-brigade size)
kaiyo shidan = ocean division: (Six IJA divisions were reorganized as ocean division, equipped with landing/transport boats,
and which consisted of three regimental battlegroup, so that they could fight independently in three islands if necessary.
In 1943 and 1944, 14th, 29th, 36th, 43rd, 46th and 52nd divisions became ocean divisions.)
### Paratroopers ###
TeishinShudan = Dash Forward / Paratroopers
### Armour ###
Senshashidan = tank division
############### Historical General Armies ###############
General Defence Command = Boei So-Shireibu (formed april 1945 for defense of Japan)
1. General Army = Dai-Ichi So-Gun (formed april 1945 for defense of Japan)
2. General Army = Dai-Ni So-Gun (formed april 1945 for defense of Japan)
Air General Army = Kôkû So-Gun (formed april 1945 for defense of Japan)
China Expeditionary Army = Shina Hakengun
Kwantung Army = kantô Gun
Southern Army = Nanpô Gun or Nanpô So-gun
############### Historical Area armies ###############
1. Area Army = Dai 1 Hômengun
2. Area Army = Dai 2 Hômengun
3. Area Army = Dai 3 Hômengun
5. Area Army = Dai 5 Hômengun
6. Area Army = Dai 6 Hômengun
7. Area Army = Dai 7 Hômengun
8. Area Army = Dai 8 Hômengun
10. Area Army = Dai 10 Hômengun
11. Area Army = Dai 11 Hômengun
12. Area Army = Dai 12 Hômengun
13. Area Army = Dai 13 Hômengun
14. Area Army = Dai 14 Hômengun
15. Area Army = Dai 15 Hômengun
16. Area Army = Dai 16 Hômengun
17. Area Army = Dai 17 Hômengun
18. Area Army = Dai 18 Hômengun
Burma Area Army = Biruma Hômen Gun
Central China Area Army = Chu-Shina Hômen Gun
Northern China Area Army = Kita-Shina Hômen Gun
Southern China Area Army = Minami-Shina Hômen Gun
############### Historical armies ####################
1. Army = Dai 1 Gun
2. Army = Dai 2 Gun
3. Army = Dai 3 Gun
4. Army = Dai 4 Gun
5. Army = Dai 5 Gun
6. Army = Dai 6 Gun
10. Army = Dai 10 Gun
11. Army = Dai 11 Gun
12. Army = Dai 12 Gun
13. Army = Dai 13 Gun
14. Army = Dai 14 Gun
15. Army = Dai 15 Gun
16. Army = Dai 16 Gun
17. Army = Dai 17 Gun
18. Army = Dai 18 Gun
19. Army = Dai 19 Gun
20. Army = Dai 20 Gun
21. Army = Dai 21 Gun
22. Army = Dai 22 Gun
23. Army ...
25. Army
27. Army
28. Army
29. Army
30. Army
31. Army
32. Army
33. Army
34. Army
35. Army
36. Army
37. Army
38. Army
39. Army
40. Army
41. Army
43. Army
44. Army
50. Army
51. Army
52. Army
53. Army
54. Army
55. Army
56. Army
57. Army
58. Army = Dai 58 Gun
59. Army = Dai 59 Gun
Borneo Defence Army = "Boruneo Boeigun"
Central China Expeditionary Army = Chu-Shina Hakengun
China Garrison Army = Shina Chuton Gun
Kwantung Defence Army = Kantô Boeigun
Korea Army = Chôsen Gun
Formosa Army - Taiwan Army = "Takasago Gun"
Indochina Expeditionary Army = Indoshina Hakengun
Indochina Garrison Army = Indoshina Chuton Gun
Mechanised Army
Mongolia Garrison Army = Moukogo Chuton Gun
Shanghai Expeditionary Army = Shanghai Hakengun
Thailand Garrison Army = Tai Chuton Gun
Tokyo Defence Army = "Tokyo Boeigun"
Tsingtao Defence Army = "Tsingtao Boeigun"
Chugoku District Army = "Chugoku chikugun"
Shikoku District Army = "Shikoku chikugun"
Tohoku District Army = "Tohoku chikugun"
Tokai District Army = "Tokai chikugun"
Northern Army - See Northern District Army = "Kita Hômengun"
Eastern Army - See Eastern District Army = "Tôbu Hômengun"
Central Army - See Central District Army = "Chûô Hômengun"
Western Army - See Western District Army = "Roppou Hômengun"
##### Historical IJA Air Armies #####
1. Air Army = Dai 1 Kôkûgun
2. Air Army = Dai 2 Kôkûgun
3. Air Army = Dai 3 Kôkûgun
4. Air Army = Dai 4 Kôkûgun
5. Air Army = Dai 5 Kôkûgun
6. Air Army = Dai 6 Kôkûgun
Training Air Army = Renshu Kôkûgun
############### NAVY Translation #####################
Supreme HQ of Navy = Kaigun Sotai
aircraft carrier = kôkû bokan
battleship = senkan
cruiser = jun'yôkan
DD squadron = Kuchikusentai
SS squadron = Sensuisentai
Transport Squardron = Yuso Sentai
kantai = fleet
General Escort Command = Kaijo Goei Sotai
Reserve Fleet = Yobikantai
Readiness Fleet = Jobi Kantai
Escort Fleet = Goei Kantai
detachment, force = shitai
Area Fleet = Homen Kantai
Task Fleet = Kido Kantai
Special Task Fleet = Tokumu Kantai
Training Fleet = Renshu Kantai
carrier force = kidô butai
invasion force = kôryaku butai
strike force = shingeki butai
support group = shien butai
Sendan = convoy (of vessels) transport fleet
##### Historical IJN fleets #####
Combined Fleet = Rengo Kantai (Japanese navy high command)
1. Fleet = Dai 1 Kantai
2. Fleet = Dai 2 Kantai
3. Fleet = Dai 3 Kantai
4. Fleet = Dai 4 Kantai
5. Fleet = Dai 5 Kantai
6. Fleet = Dai 6 Kantai
7. Fleet = Dai 7 Kantai
8. Fleet = Dai 8 Kantai
9. Fleet = Dai 9 Kantai
10. Area Fleet = Dai 10 Hômen Kantai
Central Pacific Area Fleet = Chubu Taiheiyo Hômen Kantai
China Area Fleet = Shina Homen Kantai
1. China Expeditionary Fleet = Dai 1 Kenshi Kantai
2. China Expeditionary Fleet = Dai 2 Kenshi Kantai
3. China Expeditionary Fleet = Dai 3 Kenshi Kantai
First Escort Fleet = Dai 1 Goei Kantai
First Task Fleet = Dai 1 Kido Kantai
Maritime Escort Fleet = Kaijo Goei Sotai
Northeastern Area Fleet = Hokuto Hômen Kantai
Readiness Fleet = Jobi Kantai
Southwestern Area Fleet = Nansei Hômen Kantai
Southeastern Area Fleet = Nanto Hômen Kantai
Southern Expeditionary Fleet = Nanken Kantai
1. Southern Expeditionary Fleet = Dai 1 Nanken Kantai
2. Southern Expeditionary Fleet = Dai 2 Nanken Kantai
3. Southern Expeditionary Fleet = Dai 3 Nanken Kantai
4. Southern Expeditionary Fleet = Dai 4 Nanken Kantai
##### Historical IJN Air fleets #####
1. Air Fleet = Dai 1 Kôkû Kantai
2. Air Fleet = Dai 2 Kôkû Kantai
3. Air Fleet = Dai 3 Kôkû Kantai
5. Air Fleet = Dai 5 Kôkû Kantai
10. Air Fleet = Dai 10 Kôkû Kantai
11. Air Fleet = Dai 11 Kôkû Kantai
12. Air Fleet = Dai 12 Kôkû Kantai
13. Air Fleet = Dai 13 Kôkû Kantai
14. Air Fleet = Dai 14 Kôkû Kantai
Combined Training Air Units = Renshu Rengo koku Sotai
############### Air Translation #####################
bakugekiki = bomber (aeroplane)
bakugeki chûtai = bomber squadron
keibakugeki tai = light bomber unit (air)
jûbakugeki = heavy bombing
Shôtai = flight (Note: Army air unit)
hikôchûtai = air squadron (Note: Army air unit)
hikôdaitai = air battalion (Note: Army air unit)
hikôsentai = air group (Note: Army air unit)
hikôshidan = air division (Note: Army air unit)
kôkûsentai = air flotilla (Note: Navy air unit)
kôkûkantai = air fleet (Note: Navy air unit)
Carrier based Air Groups = Hikokitai
Land based Air Groups = Kokutai
keibakugeki tai = light bomber unit
bakugeki chûtai = bomber squadron
Sento Hikodan = Fighter wing
Kyokutsi Hikodan = Intercepter wing
Joubakugeki Hikodan = Heavybomber wing (strategic bombers)
Keibakugeki Hikodan = Light bomber wing (tactical bombers)
Sentoubakugeki Hikodan = Fighter bomber wing (CAS)
Kyûkôkabakugeki Hikodan = Divebomber wing (CAS)
Kaigunkogeki Hikodan = Navalattack wing (NAV)
Goraikogeki Hikodan = (navs)Unable to verifie this name, it is however kept in the files.
Yuso Hikodan = Transport wing
#### Examples of Historical Airunits names used by Japan ####
Dai 13 Kôkû Kantai = 13th Air Fleet
Dai 25 KÔkûsentai = 25th Air Flotilla
Dai 4 Kôkûgun = 4th Air Army
Dai 5 Hikôsentai = 5th Air Group
Dai 6 HikôShidan = 6th Flight Division
Dai 18 Sentai = 18th Squadron
Dai 5 Hikôrentai Dai 2 Chûtai = 5th Flight Regt 2nd Coy
