Yusei Fujii

Entrepreneur / Researcher

Yusei Fujii

藤井佑成

Born in Chiba, Japan. Focused on optics, photonics, and space power infrastructure.

Summary

Companies and institutions

Bedrock Space

2026.2 - Current

Bedrock Space

Co-Founder & CTO. Co-orbital laser wireless power transmission startup in Tokyo.

ToreMock

2025.3 - 2026.2

ToreMock

AI-based English exam web service. Founded as CEO; reached 2K+ monthly users; closed in February 2026 to fully commit to Bedrock Space.

Shizuoka University

2023.7 - 2025.9

High School Researcher, faculty-supervised
The University of Tokyo

2026.4

Undergraduate Student, Faculty of Engineering
The Graduate School for the Creation of New Photonics Industries

2026.7 - Current

Joint Research

Record

  1. High school researcher under faculty supervision, Shizuoka University, Faculty of Science.
  2. Won the Grand Award in the Japan Mathematics Competition.
  3. Founded ToreMock as CEO, an AI-based English exam web service.
  4. First place nationally in the National Unified High School Exam, ranked #1 out of approximately 50,000 examinees.
  5. Published first paper: On Truncated Prisms and Geometric Theorems Involving Centroids.
  6. ToreMock reached 2K+ monthly users.
  7. Scored 935 / 1000 on the Common Test for University Admissions, ranking in the 99.97 percentile in Japan.
  8. Co-founded Bedrock Space as CTO; closed ToreMock to fully commit to Bedrock Space.
  9. Graduated Chiba Prefectural Chiba Senior High School as valedictorian, GPA 5.00 / 5.00, ranked #1 out of 300+ students.
  10. Entered the University of Tokyo, Faculty of Engineering, through school recommendation selection; left the same month.
  11. Bedrock Space begins joint research with the Graduate School for the Creation of New Photonics Industries.