Inventive step
(Conclusion)
Inventive step is found.
*Limitation of super-conceptualization of well-known technology (hindsight)
To abstract the semiconductor laminated body structure and the technical meanings so as to make them a generic concept from the matters described in each of the cited documents and to introduce the employment of the composition graded layer in which the ratio of Al in the AlGaN layer is graded (present art) in order to solve the problem that the driving voltage thereof is to be lowered in the technical field of the semiconductor light emitting element should be considered as an argument based on a hindsight.
<Writer: Hideki Takaishi (Attorney-at-law licensed in Japan and California)>
https://www.ip.courts.go.jp/app/files/hanrei_en/693/002693.pdf