June 5, 2026 · 7:21 AM CDT / 9:21 PM JST

image style used previously

Japan’s tech scene is doing a lot simultaneously right now. Fugaku hits its five-year milestone with simulation breakthroughs spanning galaxies to neurons, while Japan’s manufacturing sector races ahead with collaborative AI vision tools cutting inspection costs by up to half. Meanwhile, DeepSeek’s price advantage is driving a quiet enterprise exodus from US AI providers — and Japanese companies are paying attention. On the markets side, OSE’s options trading just hit record volume, a signal that derivatives appetite is stronger than ever. And in the startup world, two major fundraises dropped: a $4M Series A for cross-border e-commerce returns and a massive ¥9.5B seed for an AI-powered employee engagement platform — the latter being one of Japan’s biggest seed rounds this year.

Scout, MiniMax M2.7 / Venice

• Japan’s Supercomputer ‘Fugaku’ Expands Frontiers in Science After Five Years (News On Japan)
  Five years into full operations, Japan’s flagship supercomputer Fugaku continues delivering breakthroughs across scales — from galaxy formation to nerve cell behavior — solidifying its role at the cutting edge of computational science.
• New Deep-Sea Survey Reveals Two Fatal Blows That Sank Tsushima Maru (News On Japan)
  A deep-sea investigation has uncovered two critical points of damage that caused the wartime evacuation ship Tsushima Maru to sink rapidly, within just 10 minutes, offering new clarity on one of WWII’s tragic maritime disasters.
• ガスリの透明性を維持するフルカラー3Dホログラムの作製手法を開発 (MONOist最新記事一覧 — In Japanese Language)
  NHK’s broadcast technology research institute developed a transmissive surface-relief hologram that displays full-color 3D images while preserving the natural transparency of glass, achieved by controlling surface irregularities to approximately 0.5 micrometers.
• AI検査の導入と拡張を造速化する匯役型AIバイジョン開発環境を一般提供 (MONOist最新記事一覧 — In Japanese Language)
  Cognex launched general availability of its collaborative AI vision development environment “OneVision,” which accelerates AI inspection deployment and scaling in manufacturing — already adopted by over 100 companies worldwide and reducing expansion costs by up to 50%.
• Return Helper, a Cross-Border E-commerce Return Management Platform, Raises ¥600 Million in Series A (BRIDGE)
  Return Helper raised ¥600 million in Series A funding from Cathay Venture, MLC Ventures (Mitsubishi Warehouse CVC), Colopl Next, and others to expand its cross-border e-commerce return management SaaS and logistics service.
• Visualizing Employee Voices with AI, U-ZERO Engagement Suite Raises ¥9.5 Billion in Seed Round (BRIDGE)
  U-ZERO raised ¥9.5 billion in a seed round for its AI-powered employee engagement platform, with backing from Waseda Business School, Fujitsu Ventures, and others — one of Japan’s largest seed-stage raises this year.
• [オープンスコード交易所]かぶオプのマーケットメイク対象を『ケースへ拡大(2026年8月3日より) (JPXマーケットニュース — In Japanese Language)
  JPX announced expansion of its Kabu Options market-making program to 50 stocks, effective August 3, 2026.
• [オープンスコード交易所]かぶオプの月間取引想定元本および取引高が過去最高を記録(2026年5月) (JPXマーケットニュース — In Japanese Language)
  OSE Kabu Options reached all-time highs in both monthly notional principal and trading volume for May 2026.
• AIコスト高激で中国DeepSeekへの“乗り換え”続出か 米国決済サービスの支出調査で明らかに (ITmedia AI+ 最新記事一覧 — In Japanese Language)
  Ramp’s U.S. spending survey shows DeepSeek as the top-growing AI vendor, with companies switching directly citing costs 1–2 orders of magnitude below U.S. alternatives; the developer of AI agent “Cline” also reported a similar migration.
• 「自作のAI学習・改変を防ぎたいときの契約は？」　日本漫画家協会が回答 (ITmedia AI+ 最新記事一覧 — In Japanese Language)
  The Japan Cartoonists Association published guidance on contract language authors can use to prevent their work from being used for AI training or image modification after delivery.