Type 98 Ke-Ni
Type 95 Ha-Go variant with turret from Ka-Mi amphibious tank
Kit candidate: Milicast,
Kit candidate: Ke-Ni by ModellTrans
Type 2 Ke-To
Improved Ke-Ni, not used in combat
Kit candidate: Ke-To by Shapeways, ModellTrans, candidate:2S14 by Onkel Supermann (Man on taobao)
Type 4 Ke-Nusame chassis as Ha-Go, different suspension
Type 4 Ke-Nu
Type 1 Chi-Hesuccessor to the Chi-Ha. Spped, armor better, still 47mm Pak
Type 1 Chi-He Command Tank Ka-So
replacement of Shi-Ki on base of Chi-He, dummy wood gun.
In the web it is often called the Type 97 Ka-So. This is weird, since it is based on Type 1 Chi-He and should not have an earlier year number
Type 4 Chi-To
75mm, 6 prototypes, 2 finished
Kit candidate: Chi-To by Ostmodels
SRII Ro-Go Amphibious Tank (prototype)
(by Wikimedia, Author, Rights refer to here)
Kit candidate: SR-II Ro-Go by PanzerPrinter on Shapeways
Type 1 Mi-Sha Amphibious Tank (prototype)
Type 3 Ka-Chi Amphibious Tankderived from Chi-Ha, 47mm
Type 3 Ka-Chi Type 4 Ka-Tsu Amphibious Armoured Launch/Personnel CarrierAmph. Troop carrier on base of Chi-Ha
Type 4 Ka-Tsu Type 4 Ka-Sha Amphibious Tank (design only)
Chi-Ha based amph design on type 4 Chi-To or Type 5 Chi-Ri chassis, not produced
Type 5 To-Ku Amphibious TankAmph tank derived from Chi-Ha 1x 47 mm gun, 1x 25 mm, 2x 7.7 mm

Similar type
Type 3 Ka-Chi
Type 98 Ta-Se mit 20mm Flakon base of Ke-Ni, single and twin gun variants (later called So-Ki?). Wrongly called Ko-Ni in some sources
(by Wikimedia, Author, Rights refer to here)
Kit candidate: Ta-Se and So-Ki SPAA by SSModel
Type 98 Ko-Hi Half-Track Tractor mit 20mm Flak
(by Wikimedia, Author, Rights refer to here)
Type 2 Ho-I Gun TankTank gun on base of Chi-Ha/Chi-He with short 75mm gun
Type 2 Ho-I Type 4 Ha-To 30 cm SP Heavy Mortar Carrier
(by Wikimedia, Author, Rights refer to here)
Kit candidate: Ha-To 300mm Mortar by Shapeways, Ho-Ro by cOnkel Supermann (Man on taobao)
Type 5 Na-To 75 mm SP Tank Destroyerchassis of the Type 4 Chi-So medium tracked carrier. 75mm gun like Type 4 Chi-To
Type 5 Na-To Type 5 Mortar Launcher Tok
similar Ha-To, smaller gun
Exp. Tank Number 1 - Type 87 Chi-I1 Prototype, ancestor of all Japanese Tanks
(1136)
(by Wikimedia, Author, Rights refer to here)
Exp. Medium Tank Chi-Niprototype competitor to the Chi-Ha
(by Wikimedia, Author, Rights refer to here)
Exp. Medium Tank Type 98 Chi-HoMedium tank similar chassis like Chi-Ha
(by Wikimedia, Author, Rights refer to here)
Exp. Type 2 Ku-Se 75 mm SPG
Exp. Light Armored ATG Carrier So-To
Exp. Flying Tank Ku-Roflying tank, also called So-Ra
(by Wikimedia, Author, Rights refer to here)
Exp. Light Tank Type 5 Ke-Ho
(by Wikimedia, Author, Rights refer to here)
Kit candidate: Ke-Ho by MGM
Exp. Type 5 155 mm Ho-Chi SPG
howitzer on Chi-Ha
Exp. Long Barrel 120 mm SPG
howitzer on Chi-Ha
Kit candidate: Type 97 Chi-Ha Long 12cm Gun by SSModel
Exp. Type 2 Ka-To 105 mm Tank Destroyer
Sumida Amphibious Armored Car (Experimental)
Type 95 So-Ki Armored Railroad Car
(by Wikimedia, Author, Rights refer to here)
Kit candidate: So-Ki by PanzerPrinter on Shapeways
Type 1 Te-Ra Observation Vehicle
Kit candidate: Te-Ra by EWM, Te-Re by Plastic Soldier
Type 1 Ho-Ha Half-Track Armoured Personnel Carrier 
Similar style
Sd.Kfz. 251/1,
Kit candidate: Ho-Ha by EWM,
Kit candidate: by
MarDavMiniatures ,
Kit candidate: Ho-Ha by Badger 3D (out of business?)
Type 92 5 t Prime Mover "I-Ke"
Type 92 8 t Prime Mover "Ni-Ku"
Kit candidate: Ni-Ku announced by AJM on FB 10.10.2021
Type 95 13 t Prime Mover "Ho-Fu"
Kit candidate: Ho-Fu Typ 95 by MGM on Germania
Type 94 4 t Prime Mover "Yo-Ke"
Kit candidate: Shi-Ki by S&S Models similar
Type 98 4 t Prime Mover "Shi-Ke"
Kit candidate: Shi-Ki by S&S Models
Type 96 AA Gun Prime Mover
Type 98 20 mm AA Machine Cannon Carrier
Type 98 Half-tracked Prime Mover "Ko-Hi"
(by Wikimedia, Author, Rights refer to here)
Experimental Heavy Gun Tractor Chi-Ke
Experimental Crawler Truck
T G Experimental Crawler Truck
Fordson Prime Mover
The 50 hp Gun Tractor
Komatsu 3 ton Tractor
Light Prime Mover
Clarton Prime Mover
The Holt 30
Armored Engineer Vehicle "SS" / SS-KiSS Ki: Main model
SS Kou Gata (甲型): Armored engineering vehicle with suspension tracks consisting of four return rollers
SS Otsu Gata (乙型): Armored bridgelaying vehicle with three return rollers and modified drive sprockets
SS Hei Gata (丙型): Armored trench digger with identical suspension as the Otsu Gata, with additional armor plates
SS Tei Gata (丁型): Armored engineering vehicle with identical suspension as the Otsu Gata
SS Bo Gata (戊型): Armored bridgelaying vehicle based on the design of the SS Ki
(1772)
(by Wikimedia, Author, Rights refer to here)
Kit candidate: SS-Ki Bridgelayer by Plastic Soldier (named Sagyo Ki Engineering Vehicle)
Armored Lumberjack Ho-Kon base of Chi-Ha
(by Wikimedia, Author, Rights refer to here)
Kit candidate: Ho-K by Ostmodels,
Kit candidate: Ho-K by ModellTrans
Armored Lumberjack Brasso Ki
on base of Chi-Ha (Basso-Ki?)
Armored Recovery Vehicle Se-Rion base of Chi-Ha
(by Wikimedia, Author, Rights refer to here)
Kit candidate: Se-Ri by mgm on Germania
F B tracked Swamp Vehicle
(by Wikimedia, Author, Rights refer to here)
S A tracked Swamp Vehicle
(by Wikimedia, Author, Rights refer to here)
Type 94 Disinfecting Vehicle and Type 94 Gas Scattering VehicleVariants of the TK

Similar type
Type 94 Tankette Type 97 "Pole Planter" and Type 97 "Cable Layer"Variants of the TK

Similar type
Type 94 Tankette Type 97 Chi-Yu Mine flail tankon base of Chi-Ha
(by Wikimedia, Author, Rights refer to here)
Type 95 Crane Vehicle Ri-Ki
Kit candidate: Ri-Ki by Blitz Workshop
Type 97 Mini Engineer Vehicle Yi-Go / Type 98 Ya-I GoRemote-controlled, mine-clearing, charge-laying, on base oif Holt tractor
(1138)
Holt 75 Tractor High-Voltage Dynamo Vehicle Ka-Haon base of Chi-Ha
(by Wikimedia, Author, Rights refer to here)
Type T-G "bridge layer"on base of Chi-Ha
(by Wikimedia, Author, Rights refer to here)
Kit candidate: T-G by mgm80-244
Type 4 Chi-SoArmed Personnel Carrier and Prime Mover. Few prototypes

Similar type
Type 5 Na-To Type 96 AA / AT gun 25mmCopy of the French Hotchkiss design, mainly as ship gun in 1/2/3 mounts

Similar type
Hotchkiss 2,5cm AT
Type 91 10cm HowitzerCanon de 105 mle 1913 Schneider L13S
auf Basis der Schnieder L13S entwickelt. Kaliber 105
Type 91 10cm Howitzer (TD candidate:IJA Type 91 105mm Howitzer by Game Miniatures on Shapeways) Krupp 7,5 cm L/30 Feldkanone M. 1903In DE entwickelt, nicht von DE selbst eingesetzt, aber im 2.Wk als Beute. Weiteentw.Variante hiess M1910.
Schweiz modifizierte die Lafette mit Name M1903/22 im Dienst 1922-1945, diese wurde 1948 an Israel verkauft.
Belgien produzierte Canon de 7c5 M 1905 TR et TRA, im Einsatz in Wk1 und 2. Erbeutete 7.5 cm Feldkanone 235(b).
NL als M 02/04, 7-veld, OM 04 und NM 10, erbeutete als 7.5 cm Feldkanone 243(h)
Dänemark erbeutete als 7.5 cm Feldkanone 240(d)
Japan Type 38 75 mm field gun als Standard-Artillerie 1905-1945
Krupp 7,5 cm L/30 Feldkanone M. 1903 (TD)