Hidaka Kikuchi
AI & Web Systems Builder | RAG, Internal Tools, Automation
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Before pasting Japanese text into an AI chat, take a moment to review the details you do not want to share.I made AI Input Guard, a small Japanese-language offline browser tool. For example, the fictional text “メール: sample@example.invalid” becomes “メール: ［伏せ字］”. It flags...
For Japanese-speaking game and audio creators: I made a small offline file-delivery checker.
Paste the expected filenames, select the delivery folder, and check missing, extra, duplicate or zero-byte files. It supports folder paths and exports CSV/HTML reports. It checks names...
Field Report AI is now live as a Product on my profile — a free tool for field techs (HVAC/electrical/plumbing) to turn job-site photos and voice notes into a clean PDF report in one step. Check it out: https://contra.com/products/LMtQF63S-field-report-ai
RAG Knowledge Base — PDF + Cited AI Chat
https://ai.kaisei-global.com/rag
Upload PDFs → members ask questions → AI answers with source citations. Stack: Next.js, Supabase pgvector, Gemini. Live demo.
Next.js Marketplace & Catalog MVP — Live Production Site
Production luxury multi-vertical catalog I solo-built and maintain: listing grid, detail pages, inquiry/lead capture, and a Python data pipeline into Supabase.
Stack: Next.js, Supabase, Vercel. Live site — not mockups.
Same...
