Growing community of inventors

Shiga-ken, Japan

Yuki Nishikawa

Average Co-Inventor Count = 3.18

ph-index = 3

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 = 34

Yuki Nishikawa ↔ Tatsuro Yamada (7 patents)Yuki Nishikawa ↔ Yuki Ochiai (7 patents)Yuki Nishikawa ↔ Yasuaki Kayanuma (4 patents)Yuki Nishikawa ↔ Satoshi Goto (3 patents)Yuki Nishikawa ↔ Takashi Akiyama (1 patent)Yuki Nishikawa ↔ Shigehisa Watanabe (1 patent)Yuki NishikawaYuki Nishikawa (9 patents)Tatsuro YamadaTatsuro Yamada (16 patents)Yuki OchiaiYuki Ochiai (14 patents)Yasuaki KayanumaYasuaki Kayanuma (14 patents)Satoshi GotoSatoshi Goto (7 patents)Takashi AkiyamaTakashi Akiyama (68 patents)Shigehisa WatanabeShigehisa Watanabe (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Citizen Electronics Co., Ltd. (9 from 608 patents)

2. Citizen Watch Company, Ltd. (8 from 2,002 patents)

3. Citizen Holdings Company, Ltd. (1 from 450 patents)


9 patents:

1. D808914 - Light-emitting diode

2. D807837 - Light-emitting diode

3. D807838 - Light-emitting diode

4. D803170 - Light-emitting diode

5. D802544 - Light-emitting diode

6. D801290 - Light-emitting diode

7. D789308 - Light-emitting diode

8. D786808 - Light-emitting diode

9. D762182 - Light-emitting diode

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idiyas.com
as of
12/6/2025
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