Quick links to detailed datasheets for Japan:

Prevalence

Adult current e-cigarette vaping prevalence:
1.9%
1
Ever tried e-cigarette vaping:
11.4%
1
References:
  1. Tabuchi, T. et al (2017) Heat-not-burn tobacco product use in Japan: its prevalence, predictors and perceived symptoms from exposure to secondhand heat-not-burn tobacco aerosol. Tobacco Control. https://tobaccocontrol.bmj.com/content/early/2017/12/15/tobaccocontrol-2017-053947?papetoc=#DC1

Regulation

Regulatory status:
Banned
1
Regulated as medicinal product:
Yes
1
References:
  1. Data cross-referenced where possible using the following sources :1. Vapetrotter website. Available at: https://www.vapetrotter.com/laws/ ; 2. Global tobacco control website. Available at:https://www.globaltobaccocontrol.org/node/14052 ; 3. Tobacco Control Laws website. Available at : https://www.tobaccocontrollaws.org/legislation/

Availability

Legal to buy device online - personal use:
Yes
Legal to buy nicotine online - personal use:
Yes
Legal to import nicotine - trade:
No
Legal to sell device:
Yes
Legal to sell nicotine:
No
Legal to purchase without prescription:
Yes

Regulations and restrictions

Notifications of new products required:
Yes
Minimum age restrictions on sales:
Yes: 20 years
Legal restrictions on use in public places:
Yes