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

  • Technical field:  IT (information technology, computer software, computer program, method using software, etc.)
  • Status:  Japanese granted patents in 2017 (registration date).
  • Count:  The number of patents filed by each applicant was counted.
RankingNo.ApplicantEnglishList
11245富士通株式会社Fujitsu View
2954キヤノン株式会社Canon Incー
3747株式会社リコーRicohー
4602日本電気株式会社NECー
5488三菱電機株式会社Mitsubishi Electricー
6459株式会社東芝Toshibaー
7440コニカミノルタ株式会社Konica Minoltaー
8418株式会社日立製作所Hitachiー
9406日本電信電話株式会社Nippon Telegraphー
10383富士ゼロックス株式会社Fuji Xeroxー
11339京セラドキュメントソリューションズ株式会社Kyoceraー
12323ブラザー工業株式会社Brother Industriesー
13313ソニー株式会社Sonyー
14296ヤフー株式会社Yahoo Japanー
15266シャープ株式会社Sharpー
16260KDDI株式会社KDDIー
17242カシオ計算機株式会社Casio Computerー
18233大日本印刷株式会社Dai Nippon Printingー
19205東芝テック株式会社TOSHIBA TECー
20201セイコーエプソン株式会社Seiko Epsonー
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, IT 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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