Fake residence card to be easily determined
The Japanese Immigration Bureau will develop smartphone application dedicated to detecting fake residence cards. They aim to launch the said application within this year. Residence card is issued to every non-Japanese resident of Japan to be carried all the time.
News article from the Sankei News dated January 7, 2020
https://www.sankei.com/affairs/news/200107/afr2001070002-n1.html
For now, you can check for the genuine residence card from the following link provided by the Immigration Bureau:
http://www.immi-moj.go.jp/newimmiact_1/pdf/zairyu_syomei_mikata.pdf