1. A vertex drift chamber for the VENUS detector at TRISTAN
2. VENUS collaboration proposal,1983
3. Resistance-thermometer-sensor, PT100R, Showa Instrument Co., 4-8-8 Hutaba, Shinagawa, Tokyo, Japan.
4. Automatic valve, SR100M, Fujikin Inc., 1-4-8 Shibata, Kita-ku, Osaka, 530 Japan.