Growing community of inventors

Osaka, Japan

Akira Nishikawa

Average Co-Inventor Count = 5.78

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 = 5

Akira NishikawaHiroki Tanaka (9 patents)Akira NishikawaTomoyuki Fukunaga (9 patents)Akira NishikawaKuniharu Matsuda (9 patents)Akira NishikawaYoshikazu Sumi (9 patents)Akira NishikawaMasahiro Sugesawa (9 patents)Akira NishikawaMasayuki Hattori (9 patents)Akira NishikawaHiroyuki Ishikura (9 patents)Akira NishikawaHideyuki Shibata (1 patent)Akira NishikawaHiromichi Oshio (1 patent)Akira NishikawaHideo Hirohara (1 patent)Akira NishikawaToshiya Yamamoto (1 patent)Akira NishikawaSeigo Ouchi (1 patent)Akira NishikawaHirochika Sakano (1 patent)Akira NishikawaSeiichi Tuji (1 patent)Akira NishikawaKimio Nakaseko (1 patent)Akira NishikawaAkira Nishikawa (12 patents)Hiroki TanakaHiroki Tanaka (18 patents)Tomoyuki FukunagaTomoyuki Fukunaga (11 patents)Kuniharu MatsudaKuniharu Matsuda (10 patents)Yoshikazu SumiYoshikazu Sumi (9 patents)Masahiro SugesawaMasahiro Sugesawa (9 patents)Masayuki HattoriMasayuki Hattori (9 patents)Hiroyuki IshikuraHiroyuki Ishikura (9 patents)Hideyuki ShibataHideyuki Shibata (21 patents)Hiromichi OshioHiromichi Oshio (20 patents)Hideo HiroharaHideo Hirohara (10 patents)Toshiya YamamotoToshiya Yamamoto (3 patents)Seigo OuchiSeigo Ouchi (2 patents)Hirochika SakanoHirochika Sakano (1 patent)Seiichi TujiSeiichi Tuji (1 patent)Kimio NakasekoKimio Nakaseko (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Central Japan Railway Company (9 from 118 patents)

2. Nippon Sharyo, Ltd. (7 from 51 patents)

3. Sumitomo Chemical Company, Limited (3 from 6,893 patents)

4. Nippon Sharyo Co. Ltd. (2 from 4 patents)


12 patents:

1. D764351 - Lighting fixture for a passenger carrying car

2. D764086 - Light fixture for a vehicle

3. D762898 - Light fixture for a vehicle

4. D762896 - Light fixture for a vehicle

5. D762897 - Light fixture for a vehicle

6. D762895 - Light fixture for a vehicle

7. D762518 - Lighting fixture for a passenger carrying car

8. D762519 - Lighting fixture for a passenger carrying car

9. D761465 - Light bar for a motor vehicle

10. 5665680 - Method for increasing yield of soybean by inhibition of gibberellin

11. 5173423 - Process for breeding a glabrous variety of rice crop and a glabrous plant

12. 4913725 - Granular fertilizer compositions

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as of
12/17/2025
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