Stable Voltage Generation With a Josephson Voltage Standard Device Cooled at a 4 K Stage in a Dilution Refrigerator. - Daiki Matsumaru; Shuji Nakamura; Michitaka Maruyama; Nobu-hisa Kaneko (IEEE Trans. Instrum. Meas., 2023)

Cryogenic Operation of Electromechanical Relay for Reversal of Quantized Current Generated by a Single-Electron Pump. - Shuji Nakamura; Daiki Matsumaru; Gento Yamahata; Takehiko Oe; Yuma Okazaki; Shintaro Takada; Michitaka Maruyama; Akira Fujiwara; Nobu-hisa Kaneko (IEEE Trans. Instrum. Meas., 2023)