01. About

Printed CNT field emission emitters that shifted the global manufacturing trend, with a full technology ecosystem from lab to product.

  • Ball-milling process and SiC reactive filler method, the basis of 10 years of global follow-up research
  • 15 years of government R&D: 17 projects (PI/PL on 30%+), 90+ patents, 28+ technology transfers
  • Tracking the two global CNT X-ray leaders (ETRI and the UNC Zhou group) and focusing on areas of competitive advantage

A hands-on R&D leader who proves it first, driving people growth and organizational change together.

  • Individual competency assessment, growth targets and balanced workload distribution
  • Facility infrastructure (2024), tube revision and aging (2025), automation and team restructuring (2026), in stages
  • AI tools validated firsthand, results proven, then adopted company-wide with an onboarding setup
  • NDX module co-development with partners and reliability evaluation
  • Mentored a junior researcher into an independent researcher at IBS

Technology into products, products into business. Setting business direction beyond the R&D lead role.

  • NDX five-year business plan, a components, equipment and expansion roadmap built on core business synergy
  • In-house MOM system built early for mass production
  • AI-driven automation across design, testing and marketing
  • Hardware-led, software-supported team structure, plus branding and online channel strategy

02. Experience

Vatech

2026.05 – Present

Principal Researcher, CNT Development Team Lead

Vatech

Leading R&D on CNT field emission X-ray sources for intraoral (IOX) and extraoral (EOX) digital X-ray systems.

  • Lead R&D team developing CNT-based field emission X-ray sources for IOX and EOX digital X-ray systems
  • Build engineering systems and R&D processes that scale team capability beyond individual contribution
  • Drive AI-powered R&D workflows and design automation to enhance development throughput and quality
  • Mentor engineers and transfer hands-on know-how across the team
NOWSYSTEMS

2024.03 – 2026.05

Director, NDX Development Team Lead

NOWSYSTEMS Co., Ltd.

Led the NDX Development Team, covering CNT digital X-ray commercialization, AI automation, and company PR and branding.

  • Assessed each member's skills, set growth goals and spread the work so no one carried too much
  • Built facility infrastructure in 2024, a second tube revision and a parallel aging system in 2025, and moved to automation and a new team structure in 2026
  • Co-developed NDX modules with partners and evaluated reliability by feeding back detailed characterization results
  • Built an in-house manufacturing operations management (MOM) system ahead of mass production
  • Wrote the NDX five-year business plan, built on synergy with the core food inspection business
  • Moved the team from hardware-only to hardware-led with software support
  • Validated AI tools myself, confirmed the gains, brought them into the company and shipped an onboarding manual and guidebook
  • Automated work and R&D with AI for a productivity gain of over 4×
  • Set and ran the company's online channel strategy and led NDX product PR and branding
  • Filed 4 patents (3 domestic, 1 PCT) and filed the NDX trademark internationally
ETRI

2015.05 – 2024.01

Senior Researcher, Digital X-ray Team

ETRI

Key member of the original CNT digital X-ray development team, taking field emission technology from fundamental research to world-first commercialization.

  • PI or project lead on 6+ projects
  • Commercialized CNT digital X-ray for the first time worldwide and transferred the technology to the dental industry
  • Guided a junior researcher's emitter work and co-developed a CNT microfocus tube; the researcher went on to a permanent position at IBS
  • 7 first-author SCI papers, 15 first-author conference presentations
  • 90+ patents filed or granted in Korea and abroad (including co-inventions)
  • 28+ technology transfers across 6 fields
UST
ETRI

2009.02 – 2015.02

Ph.D. in Advanced Device Engineering

UST / ETRI

Advisor: Dr. Yoon-Ho Song. Thesis: Study of Carbon Nanotube Field Emitters and Their Applications.

  • Invented the SiC reactive filler method, after which CNT paste emitter fabrication shifted in that direction
  • Established a highly reproducible ball-milling process for CNT paste
  • Published key papers in Carbon (2015), IEEE EDL (2015), Nanotechnology (2014) and SPIE (2013)

03. Skills

Core R&D Technology

Foundation

  • Materials Engineering
    Composite formulation, property analysis
  • Device Engineering
    Field emission device design and fabrication
  • Physics Analysis
    E-beam trajectory control, structural and thermal analysis
  • Process Development
    Vacuum brazing, electrical aging, evaluation

CNT X-ray Specialization

  • CNT Paste Emitter Fabrication
    Ball-milling process, SiC reactive filler method
  • Digital X-ray Tube Design and Fabrication
    Electrostatic beam focusing designed with OPERA-3D simulation, tube heat dissipation designed with thermal analysis, vacuum-sealed structure

Product and Commercialization

  • Government R&D Project Management (PI/PL)
  • Technology Transfer and Licensing (28+)
  • Product Development (NDX Series)
  • IP Strategy
    Patent filing and registration, international trademark filing
  • Business Planning and Strategy
  • Partner Discovery and Co-development
    Choosing partners with complementary capabilities
  • Market Research and Analysis
    Adjacent industries (EV batteries and others), market entry timing
  • Global Technology Competitive Analysis
    Tracking key groups, technology positioning with radar charts

PR, Branding and Marketing

  • Corporate PR and Brand Management
  • Online Channel Strategy and Operations
    LinkedIn, Naver, Instagram and others
  • B2B Digital Marketing
  • Product Webpage Planning and Development
    SEO and GEO strategy
  • Email Signature Traffic Design
    Social and website links on every outgoing email
  • Technical Content Creation
  • Turning Online Traffic into Sales Leads

Software Development and AI Automation

AI and Automation Systems

  • Claude Code and LLM Pair Development
    The LLM writes the code; architecture, review and release calls are mine
  • Agentic RAG Architecture
    On-premise setup with a local LLM
  • Simulation Automation Pipeline Design
  • Process Automation and Optimization
  • AI Security and Governance

Application Development

  • Desktop Apps
    Python with PySide6, SwiftUI (macOS), native-window packaging of local web apps
  • Mobile Apps
    Android and Wear OS (Kotlin, Jetpack Compose, Camera2), Flutter
  • Web Apps
    Next.js, React, FastAPI, Streamlit
  • High-performance Cores
    Rust video composition and analysis core, GPU rendering (wgpu)
  • On-device AI
    whisper.cpp transcription, ONNX Runtime embeddings, local LLMs (Ollama)
  • Hardware Control Software
    Instrument protocols, measurement loops, CLI
  • Enterprise Integration
    Atlassian API

04. Contact

Interested in collaboration, tech discussion, or just a coffee chat? Let's connect.

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