# Katsumata Kouta

> Full-Stack Engineer and Theoretical Physicist. Builds LLM systems, XR applications, and cloud infrastructure. Independent researcher in spacetime engineering grounded in general relativity.

Katsumata Kouta (勝又 巧太) is a Japanese full-stack engineer and independent theoretical physicist. He has served as CTO and CISO at technology startups, and in December 2025 published a peer-reviewed paper on spacetime engineering via the Gertsenshtein effect.

## Engineering Skills

- Python, Cloud infrastructure, Web development
- LLM integration and systems, Claude Code
- XR, Unity, CI/CD, 3D CAD Automation

## Physics Skills

- General Relativity
- Gertsenshtein Effect
- Nonlinear Gravitational Field Engineering
- Spacetime Engineering / Local Time-Dilation Control

## Projects

### EleClone
Digital clone platform enabling AI-driven personal identity replication.
- Role: CTO (sole engineer), Vaccano LLC
- URL: https://prtimes.jp/main/html/rd/p/000000002.000126010.html

### DesignAI
End-to-end system combining a code-generation LLM with Kubernetes orchestration for automated web service creation, in-browser editing, and zero-contract continuous deployment.
- Role: CISO, ATLAS ONLINE

## Research

### GATE: Local Time Bias Control via Asymmetric Gertsenshtein Amplification
- Author: Katsumata Kouta (勝又 巧太)
- Year: 2025
- Publisher: Zenodo
- DOI: 10.5281/zenodo.18049897
- URL: https://zenodo.org/records/18049897
- Abstract: A theoretical and engineering study grounded in general relativity. Proposes a physically realizable device for controlled local time-dilation via asymmetric amplification of the Gertsenshtein effect, with a concrete architecture leveraging superconducting technology and optical lattice clocks.

## Career

- 2025.12 — Independent Researcher / Physicist. Published GATE paper on zenodo.org.
- 2024 — CISO, ATLAS ONLINE. Led security infrastructure and municipal system recovery. 424% YoY growth. Developed DesignAI.
- 2023.04 — Co-founder & CTO, Vaccano LLC. Founded April 17 2023. Sole engineer. Built and launched EleClone.

## Contact

- Website: https://katskouta.one
- Email: katskouta@gmail.com
- GitHub: https://github.com/koutamanto
- LinkedIn: https://www.linkedin.com/in/katskouta/
- Instagram: https://instagram.com/kats_kouta