Company name:Choyo Corporation.
Address:430 Shinonoi Okada, Nagano City, Nagano Prefecture Japan
Founded:May 2, 1975
Capital:55 million yen
Major Products:sintered glass parts for electronic equipment made of sintered glass
Equipment:various glass forming machines, two types of electric
Furnace:conveyor-style and pipe-shaped
Business references:
Hamamatsu Photonics
Nippon Electric Glass Co., Ltd 
Asahi Glass Co., Ltd, Sony
et al.