Growing community of inventors

Nagoya, Japan

Hiroki Tanaka

Average Co-Inventor Count = 6.45

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 14

Hiroki TanakaAkira Nishikawa (9 patents)Hiroki TanakaTomoyuki Fukunaga (9 patents)Hiroki TanakaKuniharu Matsuda (9 patents)Hiroki TanakaYoshikazu Sumi (9 patents)Hiroki TanakaMasayuki Hattori (9 patents)Hiroki TanakaMasahiro Sugesawa (9 patents)Hiroki TanakaHiroyuki Ishikura (9 patents)Hiroki TanakaKoichi Hayashi (8 patents)Hiroki TanakaYukio Takahashi (8 patents)Hiroki TanakaYuya Futamura (8 patents)Hiroki TanakaNaoya Ozawa (8 patents)Hiroki TanakaNaoyuki Maruyama (8 patents)Hiroki TanakaToshio Kuwayama (1 patent)Hiroki TanakaTakashi Tomoto (1 patent)Hiroki TanakaHiroki Tanaka (18 patents)Akira NishikawaAkira Nishikawa (12 patents)Tomoyuki FukunagaTomoyuki Fukunaga (11 patents)Kuniharu MatsudaKuniharu Matsuda (10 patents)Yoshikazu SumiYoshikazu Sumi (9 patents)Masayuki HattoriMasayuki Hattori (9 patents)Masahiro SugesawaMasahiro Sugesawa (9 patents)Hiroyuki IshikuraHiroyuki Ishikura (9 patents)Koichi HayashiKoichi Hayashi (20 patents)Yukio TakahashiYukio Takahashi (16 patents)Yuya FutamuraYuya Futamura (16 patents)Naoya OzawaNaoya Ozawa (9 patents)Naoyuki MaruyamaNaoyuki Maruyama (9 patents)Toshio KuwayamaToshio Kuwayama (5 patents)Takashi TomotoTakashi Tomoto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Central Japan Railway Company (17 from 118 patents)

2. Nippon Sharyo, Ltd. (13 from 51 patents)

3. Nippon Sharyo Co. Ltd. (4 from 4 patents)

4. Chuo Hatsujo Kabushiki Kaisha (1 from 102 patents)


18 patents:

1. 11773631 - Cover opening-closing device

2. D869335 - Passenger carrying car

3. D860049 - Passenger carrying car

4. D764351 - Lighting fixture for a passenger carrying car

5. D764086 - Light fixture for a vehicle

6. D762898 - Light fixture for a vehicle

7. D762896 - Light fixture for a vehicle

8. D762897 - Light fixture for a vehicle

9. D762895 - Light fixture for a vehicle

10. D762518 - Lighting fixture for a passenger carrying car

11. D762519 - Lighting fixture for a passenger carrying car

12. D761465 - Light bar for a motor vehicle

13. D757605 - Passenger carrying car

14. D756843 - Passenger carrying car

15. D701818 - Sound absorbing portions of passenger carrying car

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idiyas.com
as of
12/17/2025
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