Kirk with a one-sentence summary of a Japanese news article: A local (in Kumamoto!) company has developed a COVID-19 vaccine that they think they can make available (that is, get through testing required by the government; chiken [治験]) before the end of 2022.
But don’t wait for it! If you’re not vaccinated, get whatever is available. :)
https://news.goo.ne.jp/article/kumanichi/region/kumanichi-dr403697.html