Japanesepublisher Kodansha Ltd. is protesting a move by 'sJapanese unit, claiming that more than 1,000 of its titles were taken down fromthe Kindle Unlimited subscription service without notice, The Wall Street Journal reported Oct. 3.

Another publisher, Kobunsha Co., said 550 titles from itscatalog were removed from the e-book service, which Amazon launched in Japan inearly August. It offers access to 1.2 million foreign titles and 120,000Japanese publications for a monthly fee.

Some content was provided to Kindle Unlimited inexchange for a share of revenues based on how often the publishers' titles wereread, the Journal report said, citingan official at a Japanese publisher.

Kodansha said around a dozen of its popular titles wereinitially deleted by Amazon Japan, followed by the rest of its catalog after itcomplained, according to the report.

Amazon Japan declined to comment on the matter.