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

  • Technical field:  IoT (IoT technology having broad facet classification: safe driving support system, study support system, smart kitchen devices, etc.)
  • Status:  Japanese granted patents in 2017 (registration date).
  • Count:  The number of patents filed by each applicant was counted.
RankingNo.ApplicantEnglishList
125三菱電機株式会社Mitsubishi Electric View
217株式会社東芝Toshiba
316ヤフー株式会社Yahoo Japan
414株式会社日立製作所Hitachi
513株式会社リコーRicoh
611三菱ロジスネクスト株式会社Mitsubishi Logistics
711パナソニックIPマネジメント株式会社Panasonic IP
810トヨタ自動車株式会社Toyota Motor
99株式会社デンソーDENSO
109富士通株式会社Fujitsu
119京セラドキュメントソリューションズ株式会社Kyocera
129KDDI株式会社KDDI
138株式会社ゼンリンデータコムZenrin Datacom
148日本電気株式会社NEC
157日本電信電話株式会社Nippon Telegraph
167セイコーエプソン株式会社Seiko Epson
177パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカPanasonic Intellectual
187三菱重工業株式会社Mitsubishi Heavy
196株式会社三井住友銀行Sumitomo Mitsui Banking
206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, IoT 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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