Growing community of inventors

Osaka, Japan

Ryuichi Kiyama

Average Co-Inventor Count = 7.00

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 = 0

Ryuichi Kiyama ↔ Toshio Fujishita (1 patent)Ryuichi Kiyama ↔ Takashi Kawasuji (1 patent)Ryuichi Kiyama ↔ Yukio Tada (1 patent)Ryuichi Kiyama ↔ Masahiro Fuji (1 patent)Ryuichi Kiyama ↔ Shozo Takechi (1 patent)Ryuichi Kiyama ↔ Yasuhiko Kanda (1 patent)Ryuichi Kiyama ↔ Yukio Tada (1 patent)Ryuichi KiyamaRyuichi Kiyama (1 patent)Toshio FujishitaToshio Fujishita (20 patents)Takashi KawasujiTakashi Kawasuji (16 patents)Yukio TadaYukio Tada (13 patents)Masahiro FujiMasahiro Fuji (12 patents)Shozo TakechiShozo Takechi (10 patents)Yasuhiko KandaYasuhiko Kanda (9 patents)Yukio TadaYukio Tada (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shionogi Company Limited (1 from 1,001 patents)

2. Masahiro Fuji (0 patent)

3. Yasuhiko Kanda (0 patent)

4. Toshio Fujishita (0 patent)

5. Yukio Tada (0 patent)

6. Ryuichi Kiyama (0 patent)

7. Shozo Takechi (0 patent)

8. Takashi Kawasuji (0 patent)


1 patent:

1. 9572813 - Antiviral agent

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12/27/2025
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