On August 5, 2021, the Japan Patent Office (JPO) published "How do I file a trademark application?"
This guide is a trademark examiner's guide to help you file a trademark application.
The guide is divided into five steps from filing to registration, and provides easy-to-understand explanations of the key points for filing a trademark application that will not be rejected.

In recent years, the percentage of small and medium-sized enterprises (SMEs) filing trademark applications, which has been on the rise, has exceeded 60%, and there have been an increasing number of cases where SMEs have stumbled upon reasons for refusal that could have been prevented if they had known about them in advance.

Ministry of Economy, Trade and Industry
https://www.meti.go.jp/press/2021/08/20210805002/20210805002.html