Japanese startups, funding rounds and venture investment.
Ritsumeikan University startup Patentix raised $1M in Series A1 funding to accelerate germanium dioxide (GeO2) power semiconductor development, a next-gen material that could outperform SiC and GaN.
Maya Kawana, eldest daughter of SoftBank's Masayoshi Son, has become CEO of biotech startup Spiber after a private restructuring left roughly ¥36 billion in debt with the old entity. From Goldman Sachs to spider silk, we explore her rebuilding plan, the biomaterials race, and what this means for Japan's deep-tech ecosystem.
Japanese robotics startup Jinki Ittai unveils its Bilateral Arm — a collaborative robot that transmits force feedback to operators — at Japan IT Week 2026. Also on display: a transformable humanoid heavy machine designed by Macross anime creator Shoji Kawamori. Partnering with Advantech (42.5% global IPC share), the company pursues a distinctly Japanese approach to robotics: human-operated force control rather than full autonomy, setting it apart from Boston Dynamics and Tesla Optimus.
Osaka University startup QuEL has demonstrated 24-hour stable operation of its quantum bit control device QuEL-1 SE, achieving amplitude standard deviation of 0.15% and phase standard deviation of 0.39°. Published in Review of Scientific Instruments, this breakthrough in device-level temperature control clears fault-tolerant thresholds crucial for scaling quantum computers toward the million-qubit era.
AT Tokyo and elleThermo successfully demonstrated waste heat power generation using Semiconductor-Sensitized Thermal Cells (STC) in a live data center. This Science Tokyo-born technology generates electricity directly from low-grade heat at just 30-40°C — no temperature differential required. A look at how this could reshape data center energy efficiency amid soaring AI power demands.
Japanese fusion startup Helical Fusion announces the construction site for its demonstration device 'Helix HARUKA' Phase 1, while completing critical coil case components with precision manufacturer Ryoki Tool. Explore how Japan's unique helical stellarator approach and the HTS superconductor boom are reshaping the global fusion race.
Japanese space startup Synspective successfully launched its 8th StriX SAR satellite via Rocket Lab's Electron rocket from New Zealand. The company is building a 30-satellite constellation and holds a role in a 283.1 billion yen Japanese defense program, competing with Finland's ICEYE and America's Capella Space in the global SAR market.
Bio-venture Spiber's financial crisis delivers a fatal blow to Japan's Cool Japan Fund, pushing cumulative losses beyond $2.5 billion. With its third missed target triggering dissolution discussions, we analyze Japan's structural challenges in government-backed startup investment compared to Singapore's Temasek and other sovereign wealth funds.
Tohoku University spinoff Space Quarters has successfully demonstrated electron beam welding in simulated zero-gravity and lunar gravity environments aboard an aircraft. The company achieved a world-first by welding sintered lunar regolith — the sandy material covering the Moon's surface. With its ultra-compact 7 kg welding system and JAXA partnership, this breakthrough brings humanity one step closer to building infrastructure in space.
Japanese space laser startup Orbital Lasers has closed a $20 million Series A round backed by nine investors including Keio Innovation Initiative and JIC Venture Growth. Spun out from satellite operator SKY Perfect JSAT in 2024, the company develops compact, high-efficiency space lasers for debris removal via laser ablation and high-precision 3D terrain mapping via satellite LiDAR. We explore how it compares to Astroscale and SpaceX, and what it means for Japan's booming space startup ecosystem.
Japan's Power Diamond Systems, a Waseda University spinoff, achieved the world's first 200V/1A switching operation with a diamond MOSFET. With 550V breakdown voltage and 0.8A drain current in a single device, diamond semiconductors could surpass SiC and GaN as the ultimate power semiconductor for EVs and renewable energy.