About OSUKEN

About OSUKEN

OSUKEN is a consulting and training company that provides multilingual study materials for foreign workers in Japan.

We know that studying for Japanese certifications in a foreign language can be tough. That’s why we’ve created learning materials in English—so you can fully understand the content and walk into your exam with confidence.

What We Offer:

• Hazardous Materials Handler Class B Type 4（危険物取扱者乙種第4類）
• QC Certification Level 3（品質管理検定3級）

Why OSUKEN?

• Study materials developed by experts with years of hands-on corporate training experience in Japan
• Clear, easy-to-follow content powered by advanced AI—designed for learners at any Japanese level
• We’re here to help you build your skills and grow your career in Japan

Ready to get certified? Let’s do this together!