The following table shows the ranking of Applicants in Japan. The ranking is based on the following conditions.
- Technical field: Hybrid car (Hybrid car technology having broad facet classification: control device, power supply system, electric power conversion device for hybrid vehicle, etc.)
- Status: Japanese granted patents in 2017 (registration date).
- Count: The number of patents filed by each applicant was counted.
| Ranking | No. | Applicant | English | List |
|---|---|---|---|---|
| 1 | 243 | トヨタ自動車株式会社 | Toyota Motor | View |
| 2 | 84 | 日産自動車株式会社 | Nissan Motor | ｰ |
| 3 | 79 | 株式会社デンソー | DENSO | ｰ |
| 4 | 49 | 本田技研工業株式会社 | Honda motor | ｰ |
| 5 | 47 | マツダ株式会社 | Mazda Inc | ｰ |
| 6 | 30 | 株式会社ＳＵＢＡＲＵ | SUBARU | ｰ |
| 7 | 27 | 三菱自動車工業株式会社 | Mitsubishi Motors | ｰ |
| 8 | 23 | アイシン・エィ・ダブリュ株式会社 | Aisin AW | ｰ |
| 9 | 21 | いすゞ自動車株式会社 | Isuzu Motors | ｰ |
| 10 | 20 | 三菱電機株式会社 | Mitsubishi Electric | ｰ |
| 11 | 20 | 日立オートモティブシステムズ株式会社 | Hitachi Automotive | ｰ |
| 12 | 17 | 日立建機株式会社 | Hitachi Construction | ｰ |
| 13 | 16 | アイシン精機株式会社 | Aisin Seiki | ｰ |
| 14 | 16 | 現代自動車株式会社 | Hyundai Motor | ｰ |
| 15 | 13 | 矢崎総業株式会社 | Yazaki Sangyo | ｰ |
| 16 | 13 | 日野自動車株式会社 | Hino Motors | ｰ |
| 17 | 13 | 株式会社豊田自動織機 | Toyota Industries | ｰ |
| 18 | 11 | スズキ株式会社 | Suzuki | ｰ |
| 19 | 10 | 株式会社豊田中央研究所 | Toyota Central Research | ｰ |
| 20 | 10 | ダイハツ工業株式会社 | Daihatsu Industry | ｰ |
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.
