<p>Artificial intelligence (AI) translators have made remarkable progress in translation accuracy, resulting from the emergence of “generative AI. ” Doraemon is a fictional cat-like robot from the 22nd century, who brings various unknown tools out of his pockets. One of the tools is the universal translator “Honyaku Konjac. ” Current AI translators, including DeepL, Google, and ChatGPT, are available easily through the internet. It would be as if Doraemon's translator did a time-slip from the 22nd century into the modern world. A reader may use an AI translator for writing technical English papers. Before the advent of the AI translators, anyone had consulted with both English-Japanese and Japanese-English dictionaries to find unknown or unclear words, understand their meanings, and learn how to use them by referring to example sentences. Japanese is much more ambiguous than English in terms of bidirectional translation between these two languages. Haiku is one of the shortest poems in the world. It is compliant to a strict writing format, including a seasonal Japanese word. However, this form does not need to accurately convey the intentions of the writer to a reader, thus resulting in being open to multiple interpretations. In contrast, any technical paper written in any language must accurately convey the claims and/or thoughts of the author to a reader without misunderstanding. Thus, Japanese authors should write their technical Japanese papers clearly, concisely, consistently, correctly, and simple before using AI translators. They should subsequently check, proofread and revise their English-translated versions because any AI translator based on reasoning from context cannot avoid mistranslation. This article may look like, not a paper, but an essay. It describes how to make the best use of AI translators, including its hints and tips, based on the long-term experiences of the author in the field of power electronics.</p>