Growing community of inventors

Kanagawa, Japan

Ryuya Koike

Average Co-Inventor Count = 2.57

ph-index = 1

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 = 4

Ryuya KoikeSeiichiro Jinta (1 patent)Ryuya KoikeTakashi Toyoda (1 patent)Ryuya KoikeJo Kamada (1 patent)Ryuya KoikeTakayuki Itou (1 patent)Ryuya KoikeIssei Yamazaki (1 patent)Ryuya KoikeRyuya Koike (3 patents)Seiichiro JintaSeiichiro Jinta (108 patents)Takashi ToyodaTakashi Toyoda (15 patents)Jo KamadaJo Kamada (4 patents)Takayuki ItouTakayuki Itou (2 patents)Issei YamazakiIssei Yamazaki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (3 from 58,131 patents)

2. Kabushiki Kaisha Toyota Jidoshokki (1 from 1,819 patents)


3 patents:

1. 10812891 - Sound output apparatus and method of executing function of sound output apparatus

2. 7616285 - Electronic circuit wiring and display device

3. 7239179 - Level conversion circuit, power supply voltage generation circuit, shift circuit, shift register circuit, and display apparatus

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as of
1/3/2026
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