With the analysis among 21,108 patents, we discovered top 477 key players by total patent application. Canon, Inc., Ricoh Co., Ltd., Seiko Epson Corp. are dominant in this area. They take 10.71% of the total patent filing.
With the analysis among related 2,685 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Huawei Technologies Co., Ltd., Ford Motor Co. A/S, Schlage Lock Co. take 3.35% of patent filing during this period.
With the analysis among 676 patents, we discovered top 206 universities and scientific research institutions by total patent application. Tsinghua University, Southeast University, Shanghai Jiao Tong University are dominant in this area. They take 7.69% of the total patent filing.