PROBLEM TO BE SOLVED: To provide a nitrogen monoxide generator capable of generating nitrogen monoxide efficiently and stably.SOLUTION: The provided nitrogen monoxide generator is furnished with a pair of discharge electrodes having a shape for forming a non-uniform electric field and an electric power source for impressing a high DC or AC voltage between the discharge electrodes. A discharge state between the discharge electrodes, furthermore, is maintained within a region exhibiting a negative resistance characteristic and is maintained so as to continuously stream, in-between the discharge electrodes, a current streaming as a result of the discharge. Nitrogen monoxide can be generated efficiently and stably because of the employment of such a discharge mode.COPYRIGHT: (C)2014,JPO&INPIT【課題】一酸化窒素を効率よく安定して発生させる一酸化窒素発生装置を提供する。【解決手段】一酸化窒素発生装置は、不平等電界を形成するための形状を有する一対の放電電極と、放電電極間に直流又は交流の高電圧を印加する電源と、を備える。そして、放電電極間における放電状態が、負性抵抗特性を示す領域で維持され、当該放電により流れる電流が、連続的に前記放電電極間に流れるように維持される。このような放電形態を採用するため、一酸化窒素を効率よく安定して発生させることができる。【選択図】図4