2018: Selected as a 2018 Mitou Junior Super Creator for designing and developing the new blockchain “Vreath”
2019: Spoke at Devcon 5, one of the world’s largest blockchain conferences
2022: Published first-author paper “Cryptographic Obfuscation for Smart Contracts: Trustless Bitcoin Bridge and More” in the journal “Blockchain: Research and Applications”
2023: Presented first-author paper “Contract Wallet Using Emails” at IEEE ICBC 2023
Received a grant from the Ethereum Foundation for the development of “ZK Email”
Spoke at Devconnect Istanbul 2023, one of the world’s largest blockchain conferences
Awarded the University of Tokyo President’s Award for Students and the Dean’s Award for Research from the Faculty of Engineering
2024: Presented first-author paper “Self-Examination Mechanism: Improving Standard Accuracy in Adversarial Purification” at IVSP 2024 and was selected as one of the Best Presentations
Spoke at zkSummit 11, the world’s largest zero-knowledge-proof conference
Spoke at Devcon 7, one of the world’s largest blockchain conferences
2025: Launched a system based on the co-founded project “ZK Email” for general users in the cryptocurrency wallet “Clave”
Published the paper “Diamond iO: A Straightforward Construction of Indistinguishability Obfuscation from Lattices”
Spoke at the Obfuscation Workshop

I am researching practical indistinguishability obfuscation (iO) in the Machina iO project within the Ethereum Foundation. Although iO is often called the “holy grail” of cryptography for its universal power, real-world deployment remains distant. In 2025 our team proposed a new iO construction and released a partial prototype implementation. I will continue exploring iO and other advanced cryptographic primitives, aiming to build a society where people can trust systems, especially AI, safeguarded by strong and practical cryptography.