Unidentified Asian coins

What's up, guys! I have these coins for a while from an “old”  piggy bank and I would like to know their origin/issue. 

Thanks in advance to anyone who help! 

Regards

Japanese 1 and 10 yen.

Idolenz

Japanese 1 and 10 yen.

Thanks buddy, and is possible to know year or it doesn't display? 

You can read the date.

You need to look to each coin sheet here : 

Japan Showa

Everything you need is on the respective coin pages. You only need to differentiate Showa [昭和] and Heisei [平成] issues.

Welcome to numista, please use the search by image for normal coins.

Thank you for all your answers!