Okay, I have extracted my unlucky device from car and disassembled it again:
The bottommost is the part we talking about.
This metal plate bended around regulator is not factory solution. It's my way to keep all those twenty component of regulator together. I turned it around and soldered both ends together.
Overall look of regulator:
As you can see it looks slightly different from LJV picture (see above).
Now most important thing. Don't even know how could I miss it this labels previous time, but...
It is not true that there aren't any label on this part. There are two!First one is located on a top of balance-potentiometer component:
M20KB. My guess is that 20K means resistance of variable resistor and B means linear law.
And the second one is located on the rear end of regulator (tactile button component):
JAPAN
Pana <and some sort of logotype>
Yellow subtance leftovers is EVA (hot melt glue).
So after I found "JAPAN" mark I event more doubt it was manufactured by Linjve.