Purupuru Maker, a free browser tool that wobbles only the parts of an image you paint, has gone viral in Japan and abroad. Meet the solo developer behind it and Japan's culture of gloriously pointless web toys.
RIKEN unveiled two supercomputers on the same day: RIKYU for AI for Science and ROQUO for quantum-HPC. Both are Japan's first to run GB200 NVL4 and Quantum-X800 InfiniBand. We compare them with US efforts like xAI's Colossus and the DOE Genesis Mission, and China, to read Japan's bet on purpose over scale.
When Artemis II passed behind the Moon, the crew went 40 minutes without a signal. A sustained lunar presence needs always-on infrastructure, not one-shot mission links. We trace what KDDI, the carrier that once relayed Japan's international calls, is building with laser comms and multi-hop relays, and ask how close it really is.
Japan's navy just put 45,000 personnel on SAP ERP for logistics. The US Army got there in 2018, Germany in 2011. Inside Japan's late arrival, its siloed legacy systems, and whether Fujitsu can deliver.
ROHM and Quanmatic put quantum annealing to work on a chip fab's front-end process, lifting output about 3%. Here's why a number that sounds small is actually a big deal on a factory floor.
Terahertz promises jaw-dropping 6G speeds, yet a passing body can kill the link. NICT just demonstrated the world's first system that auto-switches between millimeter and terahertz waves. The real breakthrough isn't a speed record but knowing when to give up on speed.
A University of Tokyo and RIKEN team has switched a magnet in just 40 picoseconds with almost no heat, using the antiferromagnet Mn3Sn. Published in Science, the result shatters the nanosecond speed limit that has held back chips for years. Here is why the wall stood, and how it fell.
Light travels faster through air than glass. By hollowing out the core, OKI, Lightera and Keio University demonstrated a world-first wideband single-fiber bidirectional link. Commercialized, it could cut network power by up to 90 percent. We unpack the race, where Microsoft is already in via its Lumenisity buy, as AI devours electricity.
Free-space optics sends data on beams of light without cable. The idea dates back to Bell's 1880 photophone. Here is why a 140-year niche technology is now moving toward disaster recovery and remote connectivity, from Taara to Japan's NEC and NICT.
Asahi Kasei has developed a photosensitive polyimide film for advanced semiconductor packaging—turning a liquid material into a laminated film, the same playbook behind ABF. We explain what it means for AI chiplet packaging, how it stacks up against US and Korean rivals, and why Japan keeps winning the materials game.
OpenAI is moving to offer its newest cyber-focused AI model, GPT-5.5 Cyber, to the Japanese government and industry. Former NSA Director Paul Nakasone, now an OpenAI board member, flew to Tokyo to pitch critical-infrastructure cooperation. We unpack the contrast with Anthropic's tightly controlled Claude Mythos, the China-threat framing, and what it means that OpenAI wants Japan as its first international partner.