日本东芝公司计划以各国竞相研究的高温超导材料为基础研制超导计算机。此前该公司曾因超导计算机必须使用液态氦(绝对温度4.2度)冷却而研制费用过高、以约瑟夫森二端元件制造可利用的电路又困难太大而一度决定放弃超导计算机的研制工作。但是自从人们利用液态氮研制出超导材料后,这家公司认为,制造利用液态氮的电晶体型三端元件(超导 Japan’s Toshiba plans to develop superconducting computers based on competing high-temperature superconducting materials. Previously, the company had decided to abandon the development of superconducting computers at a time when it was too expensive for the superconductor computers to be cooled using liquid helium (4.2 degrees absolute temperature) . However, since people developed superconducting materials using liquid nitrogen, the company believes that the manufacture of liquid crystal-type three-terminal elements using liquid nitrogen (superconducting