# Patentix

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/patentix

- Industry: Semiconductors
- Headquarters: Kusatsu, Japan
- Website: www.patentix.co.jp
- Total disclosed funding: $6.2M
- Latest round: Series A (Apr 1, 2026)
- Investors on record: 16

## About

Based in Shiga, Japan and founded in 2022 by Toyosuke Ibi, who serves as President & CEO, together with Prof. Kentaro Kaneko of Ritsumeikan University, Patentix Inc., d.b.a Patentix, engages in the research and development of semiconductor substrates and power devices using ultra-wide bandgap semiconductor (UWBG) material called germanium dioxide (GeO2).In July 2026, Qualtec Co., Ltd. fully ?exited its stake in Patentix Inc.?Financial terms were not disclosed. ? Patentix Inc. specializes in developing next-generation power semiconductor materials, specifically germanium dioxide (GeO2). GeO2's band gap and high voltage resistance make it suitable for use in advanced MOSFETs and HEMT elements in complex communication systems. The company develops GeO2 semiconductor goods, including platforms and power devices. The firm also provide services including crystal growth systems and thin film production with trademarked PhantomSVD equipment

## Funding rounds

- Series A, Apr 1, 2026, $0.9M — Mitsubishi UFJ Capital, TMH Family Office
- Series A, Oct 3, 2025, $4.9M — Mobile Internet Capital, Denso, MIRAIDOOR, KSP, Chushin Venture Capital, Osaka Small and Medium Business Investment & Consultation, Abies Ventures, ABC Dream Ventures, Mitsubishi Electric, Aisin, Kyoshin Social Capital, Inabata & Co., Toray Industries
- Seed, Aug 31, 2023, $0.3M — Plus Social Investment

## Investors

- Plus Social Investment (https://capitalatlas.ai/funds/plus-social-investment) — Seed
- Mobile Internet Capital (https://capitalatlas.ai/funds/mobile-internet-capital) — Series A
- Denso — Series A
- MIRAIDOOR (https://capitalatlas.ai/funds/miraidoor) — Series A
- KSP (https://capitalatlas.ai/funds/ksp) — Series A
- Chushin Venture Capital (https://capitalatlas.ai/funds/chushin-venture-capital) — Series A
- Osaka Small and Medium Business Investment & Consultation (https://capitalatlas.ai/funds/osaka-small-and-medium-business-investment-consultation) — Series A
- Abies Ventures (https://capitalatlas.ai/funds/abies-ventures) — Series A
- ABC Dream Ventures (https://capitalatlas.ai/funds/abc-dream-ventures) — Series A
- Mitsubishi Electric — Series A
- Aisin — Series A
- Kyoshin Social Capital (https://capitalatlas.ai/funds/kyoshin-social-capital) — Series A
- Inabata & Co. — Series A
- Toray Industries — Series A
- Mitsubishi UFJ Capital (https://capitalatlas.ai/funds/mitsubishi-ufj-capital) — Series A
- TMH Family Office — Series A