Apple loses Samsung patent case in Tokyo: A Japanese court on Friday dismissed patent infringement claims that Apple leveled against Samsung. The court, as The Washington Post reported, found that Samsung had not infringed on patents covering music-syncing technology.

The decision comes after Apple won a major battle in court with Samsung over patents covering several design and technological aspects of both companies’ smartphones and tablets. While the Japanese market is not nearly as large as the U.S. market, the ruling further clouds the outcome of a worldwide patent war raging between Apple and Android smartphone makers.

Chinese could be new front of patent war: China, reports The Washington Post, could be a new front of the patent wars, as Chinese companies become more aggressive in filing intellectual property suits against U.S. firms.

Analysts said that foreign companies should expect to see more lawsuits out of China, as firms there recognize the power of using IP litigation as a competitive tool.

“Think about a U.S. firm that produces all its products in China,” Peter Yu, a professor at Drake University Law School, told The Post. “If a Chinese firm is able to get an injunction over the production of that U.S. firm, the firm would all of a sudden no longer have any products.”

Twitter explores targeted ads: Twitter announced that it will start using targeted advertising Thursday, which allows advertisers to target users with Promoted Tweets and Promoted Accounts based on whom they follow and what they say in their micro-posts to the service.

In a company blog post, Twitter product management director Kevin Weil wrote that advertisers will be able to target their ads based on interests, such as music and radio or science, and by specifying kinds of user names that are relevant to a certain product.

Advertisers will not, however, be able to target the followers of a particular account.

Google, Apple CEOs in talks, reports say: Chief executives from Apple and Google are said to be talking about the patent spats between their companies, according to a report from Reuters.

Apple‘s Tim Cook and Google’s Larry Page are said to have spoken on the phone about patent matters, and conversations between the two companies are reportedly “ongoing.”

Cook, who took over Apple a little over a year ago after the death of Steve Jobs, may have a slightly different take on the smartphone suits than his Apple’s late co-founder. Cook has said that he “hates litigation,” but that Apple needs to protect its intellectual property.