NTT has positioned the utilization of artificial intelligence (AI) as an important business strategy. NTT Software Innovation Center has been engaged in research and development aimed at creating value from the AI technology known as deep learning. In this article, we explain how the deep-learning inference environment can be optimized for business applications, namely by speeding it up, making processing lightweight, and saving labor. We also report on verification activities concerning the image-analysis business opportunities (such as surveillance-camera image analysis) generated by using that technology.