[RAT-1]　1965
First domestically produced “intermittent addition control type titration recording device”

[RAT-11]　1969
Control by transistor. Adopts operational amplifier.

[COMTITE-7]　1979
Equipped with the world's first microcomputer control function and achieved 70% domestic market share.

[COMTITE-8]　1983
Equipped with 1983 titration condition file function

[ALT-100]　1984
Fully automatic titrator with built-in autosampler

[COMTITE-101]　1986
CRT adopted, real-time display of titration curve

[COMTITE-900]　1989
Color display, floppy disk adopted

[COMTITE-500]　1990
Best-selling popular model

[COM-980]　1992
System control using a personal computer, simultaneous measurement using multitasking configuration

[COM-550]　1995
Equipped with GLP compatible function

[COM-450]　1996
Up to 8 burettes added

[ALT-200]　1996
Fully automatic titrator compatible with multiple titrations

[COM-555]　1999
Differential curve display/printing

[COM-2000]　2000
3000 data storage with 2000 flash ATA card

[COM-2500]　2001
Tight Station miniaturization, multitasking up to 6 units

[COM-1600]　2004
Color LCD, smart media adopted

[misoCOM]　2005
Dedicated model for food field and other sunCOM/umeCOM

[COM-1700]　2008
Touch panel, USB, new syringe adopted

[COM-1750]　2008
PC type multi-4 device compatible type

[COM-300A]　2010
Compact, low price, KF moisture measurement too

[COM-1700A]　2015
Titration/moisture simultaneous measurement, user privileges

[COM-1760]　2020
Windows10 compatible