A countries Copyright Acts effective power is limited to that countries territory(called the territorial principle). So, the Copyright laws of the country where the copyrighted work is used apply.

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Q1. Can I use works of others as educational materials without authorization?
Q2. What is "copyrighted work"?
Q3. What should I do when using foreign copyrighted works as educational materials in Japan or using Japanese copyrighted works as educational materials abroad?
Q4. Do I need to obtain prior authorization to use copyrighted work evenin academic institutions such as universities?
Q5. Can I use a DVD I purchased or a video published on the web for classes?
Q6. What should I do to obtain authorization from copyright owners?
Q7. How can I obtain authorization when using charts etc. published in academic journals as educational materials?
Q8. How can I distribute educational materials including works of others on a website?
Q9. Can I modify and use the copyrighted works of others(e.g. figures and tables)?
Q10. How can I indicate my sources?
Q11. Can I translate and use the copyrighted works as educational materials?
Q12. What should I do with regards copyright processing to publish a recorded lecture?
Q13. Do you have any questions about copyright, which don't relate to digital educational material development?