Great Japan Weapons Co.
This group was established in 1938. Originally, it was a division of the Urawa Dock Company,
a group that existed from 1869-76, 1897-2003. This company built many warships for the Many
of these were for the export market.

In 1936 Urawa established a partnership with the Swiss company OC Oerlikon Holding AG
and began making variants of the Oerlikon FF 20 mm cannon. To do so, they created a
weapons manufacturing division in Yokohama City; this division was called the Tomioka
Weapons Factory. Then, in July 1938, this factory was split off, re-named the Great Japan
Weapons Corporation, and became independent.

After the war, this corporation was re-named (Nippei Industries) and re-purposed (machine
parts). In 1984 this company merged with Toyama Machines to become Nippei Toyama, and
then in 2008 the company was re-named Komatsu NTC.

I have only found one badge from the wartime years. It is nicely made so I am sure others will
appear now that I know the design elements. It is labeled as 'Exemplary Badge,' so it was
awarded for merit of some sort.