Apply for a Japanese visitor visa

Hi, I am Thai citizen who are now traveling in east asia. I have been traveling around east asia for around 10 months and would like to visit japan again in more period of stay. Last time I visited japan for 15 days due to the exemption for Thai policies. But this time I would like to visit for around two months and need to make an entry permit. I'm staying in beijing and plan to travel in PRC for around 2 months. My question is can I apply the Japan visitor type here?