The following table shows the ranking of Applicants in Japan. The ranking is based on the following conditions.

  • Technical field:  Electric communication (smartphone, cell phone, wireless network, video streaming, videoconference device, user authentication system, etc.)
  • Status:  Japanese granted patents in 2017 (registration date).
  • Count:  The number of patents filed by each applicant was counted.
RankingNo.ApplicantEnglishList
11531キヤノン株式会社Canon View
2906クゥアルコム・インコーポレイテッドQUALCOMM
3755富士通株式会社Fujitsu
4672株式会社リコーRicoh
5557三菱電機株式会社Mitsubishi Electric
6522京セラ株式会社Kyocera
7507日本電信電話株式会社Nippon Telegraph
8497日本電気株式会社NEC
9475ソニー株式会社Sony
10392シャープ株式会社Sharp
11387コニカミノルタ株式会社Konica Minolta
12368ブラザー工業株式会社Brother Industries
13362パナソニックIPマネジメント株式会社Panasonic IP
14347株式会社NTTドコモNTT DoCoMo
15336京セラドキュメントソリューションズ株式会社Kyocera
16316セイコーエプソン株式会社Seiko Epson
17286オリンパス株式会社Olympus
18282エルジー エレクトロニクス インコーポレイティドELGIE ELECTRONICS
19259KDDI株式会社KDDI
20257富士ゼロックス株式会社Fuji Xerox
In preparing the table, a patent search expert conducted a patent search using patent classification and keywords (as necessary) in order to extract patents in specific technical field (here, Electric communication field).
In the patent search, it was confirmed that a high-accuracy population (i.e., a population not including non-relevant fields) of patents was obtained. Subsequently, the population was used to create the table.
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