Inventive step
(Conclusion)
Inventive step is found.
Since the main cited invention and the secondary cited invention have little commonality in both the problem to be solved and its method of solution, there is no motivation to apply the secondary cited invention to the main cited invention.
<Writer: Hideki Takaishi (Attorney-at-law licensed in Japan and California)>
https://www.ip.courts.go.jp/app/files/hanrei_en/935/002935.pdf