📍 Tokyo | ⚡ Delta Electronics (Energy Solutions) | 🏢 Ex-Dentsu, Ex-Softbank, Ex-SONY | 🚀 MKHR Founder
Systems-oriented builder at the intersection of energy, data, and software — from Japan's power market research (JEPX / battery storage / grid data) to geospatial SaaS, turning complex, constrained real-world problems into executable systems.
Independent researcher — first-author papers under review at international journals (preprints on SSRN / EarthArXiv / Zenodo), across four parallel tracks:
- ⚡ Power markets & grid: battery storage (BESS) interconnection-queue economics under Japan's 2026 deposit reform; data center siting × grid-capacity disclosure gap
- 🏗️ Infrastructure & environment: nationwide bridge-condition panel (soundness transitions × fiscal capacity); data center local heat footprint via satellite land surface temperature
- 🏭 Digital twin interoperability (OpenUSD): engineering CAD ingestion semantics; PLATEAU city model → USD conversion fidelity
- 🗺️ Geospatial & urban: purchasing-power-weighted accessibility; POI temporal-validation benchmark; parcel-level farmland-to-solar conversion panel
Supporting data infrastructure: automated pipeline tracking grid interconnection capacity across Japan's utility areas; battery arbitrage backtesting on JEPX spot data.
Locanea - Geospatial GIS SaaS for real estate location analysis (Japan)
- 🌍 earthquake-cesium - 3D earthquake visualization with CesiumJS (Japan, 2000-2023, M≥3)
- 🏙️ tokyo-building-density-3d-v2 - 3D building FAR visualization across all 23 wards of Tokyo (PLATEAU 3D Tiles, CesiumJS)
- 🚃 tokyo-transit-isochrone - Tokyo Station transit isochrone animation (90-min reachability)
- 🏙️ tokyo-ksj-zone - Tokyo zoning map with 12 land-use types (KSJ data)
- 📍 japan-osm-poi - Japan POI map from OpenStreetMap, filterable by type
- 📈 btc-indicator-portal - BTC on-chain indicator dashboard with 15 metrics overlay (ECharts)
- 📊 portfolio-analyzer - Portfolio analyzer with ETF breakdown, leverage index, sector allocation
✈️ travel-risk-map - Travel risk map with US/Japan official data, risk level coloring- 📈 home-board - Financial dashboard - stocks, weather, forex in one screen
claude-semaphore - Claude Code plugin — Terminal.app tab background color as session status indicator
- 🔥 cyber-campfire - 3D fireplace with dynamic flames and lighting (Three.js)
- 🌳 git-gource - Git repository visualization in Gource style (Three.js)
- 🎲 decision-making-dice - 3D dice for decision making, click or press Enter to roll
- ⚫ game-gomoku - Gomoku (Five in a Row) for two players, 13x13 board
- ⚪ game-othello - Othello/Reversi for two players, face-to-face on mobile
- ❌ game-tictactoe - Tic-Tac-Toe for two players
- 🧩 chrome-sitemap-visualizer - Chrome extension: sitemap screenshot + D3 tree visualization
- 🛡️ Axios Supply Chain Attack Self-Check (2026-03-31) - Full self-check checklist for the axios/plain-crypto-js/openclaw compromise
- 🛡️ TeamPCP Supply Chain Attack Self-Check (2026-03-25) - Full self-check checklist for the TeamPCP campaign (LiteLLM / Trivy / Checkmarx / CanisterWorm)
- 🔍 my-resume-by-ai - AI-generated profile report page (as of 2026-01-09)
- ⚓ csg-envelope-sim-003 - 3D carrier strike group weapon envelope simulation (CesiumJS)
- 🗺️ earthquake-mapbox - 2D earthquake map with MapLibre + Deck.gl, depth coloring, filters
- 📂 data-epicenter-jp - JS scripts to format Japan's official seismic epicenter data to CSV, JSON
- ⏱️ time-controller - A hybrid mobile application to manage your time spent
- 📝 demo-box - Web application to write in Markdown, JSX, and code sandbox
- 🌤️ netweather - A web application showing weather forecast info
- 🔎 netsearch - Demo to search GitHub content with debounce, throttle, and pagination
- 📚 netbooks - A web application showing book store info
- ⚛️ react-debounce-rendering - NPM package for debounce rendering React components via HOC
- 🗾 epicenter-view - Web application visualizing seismic epicenter data using ArcGIS APIs
- 💹 digital-currency-historical-data-s3 - JS scripts to obtain trade data and format to JSON