R&D
We conduct joint research with universities and research institutes on advanced technologies, including post-quantum cryptography.
Once sufficiently powerful quantum computers become practical, some of the public-key cryptography in wide use today may no longer be secure. PAYCLE is working on the implementation and performance evaluation of post-quantum cryptography, aiming for blockchains that remain secure well into the future.
We analyze the processing speed, key sizes, and security strength of leading post-quantum schemes, such as lattice-based cryptography and hash-based signatures, and evaluate their suitability for blockchains.
We implement candidate algorithms on blockchains and evaluate their performance. The results feed into algorithm improvements and proposals for new schemes.
We also research ways to use AI to enhance security and operational efficiency, including blockchain monitoring, anomaly detection, and operational support.
In April 2025, through an industry–academia partnership with Nagasaki Institute of Applied Science and the layer-1 blockchain UPCX, we established the "Green Blockchain Development PAYCLE / UPCX Joint Research Program." The program explores how blockchain can address environmental and social challenges such as renewable energy.
| Program | Green Blockchain Development PAYCLE / UPCX Joint Research Program |
|---|---|
| Research Theme | Applied blockchain research aimed at real-world implementation |
| Location | Institute of New Technology Creation, Nagasaki Institute of Applied Science |
| Professor | Kasuga Eto (Specially Appointed Professor) |
Together with the university, we define the cryptographic requirements for blockchains and conduct comparison, implementation, and performance evaluation of leading post-quantum schemes. Based on the results, we identify challenges and improvements on the path to practical use.
Joint research member: Associate Professor Azumi Sakai (Ph.D. in Science)
We present our research at academic conferences and international events, exchanging ideas with outside researchers and experts.
In September 2025, at the 42nd Sensing Forum hosted by the Society of Instrument and Control Engineers, our engineers presented "An Approach to Creating Value from Sensing Data" and "Challenges and Prospects for Blockchain in Cloud-Based IoT Data Management" — outlining design principles for using blockchain to strengthen the authenticity and traceability of sensing data, along with a vision for data management and value circulation.
For the second consecutive year, PAYCLE joined ICRERA 2025 (October 2025, Vienna) — one of the leading international conferences in renewable energy — as an official partner. Drawing on our blockchain expertise, we aim to deliver solutions that bring greater transparency and efficiency to energy trading.
We build our research results into intellectual property, protecting our technology and putting it to work in new businesses.
Conventional NFT rentals required temporarily transferring ownership to the borrower, exposing lenders to the risk of losing their NFTs. Our patented method lets owners provide only the right to use the content — flexibly and securely — while retaining ownership.
We hold patents in Japan, Malaysia, Singapore, and South Korea.
The method can be applied across digital content distribution: simultaneous multi-user access to e-books, music, and video; temporary usage-rights sales for metaverse items and educational materials; and recurring monetization models for content providers.
We welcome inquiries about joint research and technical collaboration.