In terms of copyright, the branch right began to be divided and showed a spreading trend.

1, right of reproduction and right of information network dissemination

As far as the dissemination and utilization of information content in the network are concerned, the most important things are the right to copy and the right to disseminate information on the network (the right to send letters). Among them, the right of information network communication can be listed separately. If the discussion focuses on the object of network information dissemination, then the elements of network information dissemination also include the elements of object.

2. Right of projection and transfer

Among the branch rights of copyright, the relevant provisions on the right of transfer (Article 26 bis 1 of the same law) are not applicable to the dissemination of tangible things such as books. The film does not belong to the object of broadcasting right, just because it has the right to show. In this regard, the precedent regards the software of home TV game machines as movies, and thinks that the exhaustion rule does not apply to the right to show, and then draws the following judgment, that is, the transfer right in the right to show is the right to realize the purpose of showing, thus exhausting [3]. The projected elements here include the transmitted elements, so that the information transmission projected on the transmitted object includes the copied elements.

3. Music arrangement right

Regarding the right of music arrangement, the responsibility of the Japanese Pop Music Copyright Association is discussed in a case where the copyright management department infringes on the copyright of others [4]. Here, among the elements of arrangement, the reproduction of music as the object of arrangement behavior also becomes a prerequisite element.

4. Import right

Japan's copyright law not only stipulates the rights of the copyright department, but also stipulates the right to import (Article 1 13, paragraph 5), and its object is a copy.

5. Public lease right

Public rental right refers to the right granted from the perspective of public use of rental right, which is recognized based on the limitation of public library copyright. Like the elements of lease, the elements of public rental housing also include the elements of reproduction.

6. Reproduction right and publishing right

In addition to the relevant provisions of copyright branch right, Japanese copyright law also stipulates the right of publication (Articles 79 to 88 of the law). Publishing is also a form of reproduction,

Here, the element of copying provides us with a simplified view on the copyright branch right of the dissemination and utilization of information content.

(B) the copyright structure of the neighboring owners of works

The branching right of copyright is selectively applicable to the field of adjacent rights of works (see table 1). This selective application leads to the complexity of the relationship between copyright branch rights.