Amazon launched its own Android Appstore on Kindle devices in the US last year, and recently expanded it in other markets, including Britain.
The company is attracting developers to make services for the Store by offering them an end-to-end solution called the Mobile App Distribution Portal, in which they can build, market and monetise their apps and games.
Competition for the favour of app developers is becoming fierce. Hardware specifications of different smartphones and tablets are becoming broadly similar, meaning the available content and user experience on each software platform is proving decisive in customer choices.
Amazon's Kindle Fire tablet devices run the Google Android system, but tailored to Amazon's own specifications, including the inclusion of the firm's own app store.
US firm Amazon claims that its developers are more able to make money from their apps due to services like in-app purchasing for digital content and subscriptions, along with Amazon's secure payments system and promotions such as 'Free App of the Day'.
The company now hopes more app makers will opt to join its developer portal with the lure of getting their apps distributed in Japan.
British studios and developers can sign up to get advice and guidance from Amazon on how to localise their services for Japanese consumers, a key factor in ensuring success.
"Opening our portal to app and game developers looking to reach Japanese customers is an important milestone as we strive to serve consumers and developers globally," said Jim Adkins, the vice president of the Amazon Appstore.
"Many of our existing developers are anxious to localise their apps and games for Japanese consumers, and we look forward to working with new developers that have been waiting for a chance to bring their Japanese content to the Amazon platform.
"By continuing to expand our app programme internationally, as well as build upon the app services offered by Amazon, we are giving developers the opportunity to attract more customers and expand their businesses. "
The Weather Channel has already signed up for Japan distribution with Amazon. The firm's international vice president Mike Zarrilli said: "The Weather Channel is happy to be available with Amazon's mobile app distribution in Japan.
"Our app offers Japanese consumers the most comprehensive set of weather information available in order to plan their day - whether they're headed to work, school, the movies or the park.
"Working with a strong global partner like Amazon helps us reach our goal to provide the most accurate weather to users anywhere in the world, no matter the screen, platform, country or language."
Suli Ali, the chief executive of Tiny Monsters-maker TinyCo, said of Amazon's move: "We think the services offered through the Amazon platform have contributed to much of the success [of our company], so we are very excited to expand our offerings to Amazon's customers in Japan."
Yoichi Wada, the chief executive of games maker Square Enix, added: "With chart-topping fan favourites from acclaimed series such as Final Fantasy, Square Enix firmly believes that distribution in Japan through Amazon will be a fantastic avenue to reach an entirely new segment of Amazon's loyal user base.
"We have been eagerly awaiting Amazon's expansion into Japan, and think it marks an exciting opportunity to tailor our interactive entertainment experiences for even more players around the world."
Any developers who sign up to Amazon's app distribution programme are able to select the countries where they want to sell their app and then set their list prices by country. Amazon charges programme fees and takes a cut of sales.