Growing community of inventors

Hachioji, Japan

Ryo Hirako

Average Co-Inventor Count = 12.00

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 = 13

Ryo HirakoEiji Kaneko (1 patent)Ryo HirakoNobuo Suzuki (1 patent)Ryo HirakoShumpei Ohara (1 patent)Ryo HirakoYukio Sano (1 patent)Ryo HirakoAkihiro Goto (1 patent)Ryo HirakoYukio Torii (1 patent)Ryo HirakoKeijiro Umemoto (1 patent)Ryo HirakoTakashi Miyao (1 patent)Ryo HirakoTadashi Shingu (1 patent)Ryo HirakoShinji Sasamoto (1 patent)Ryo HirakoMinoru Inanuma (1 patent)Ryo HirakoRyo Hirako (1 patent)Eiji KanekoEiji Kaneko (23 patents)Nobuo SuzukiNobuo Suzuki (4 patents)Shumpei OharaShumpei Ohara (3 patents)Yukio SanoYukio Sano (2 patents)Akihiro GotoAkihiro Goto (1 patent)Yukio ToriiYukio Torii (1 patent)Keijiro UmemotoKeijiro Umemoto (1 patent)Takashi MiyaoTakashi Miyao (1 patent)Tadashi ShinguTadashi Shingu (1 patent)Shinji SasamotoShinji Sasamoto (1 patent)Minoru InanumaMinoru Inanuma (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kajima Corporation (1 from 150 patents)

2. Teijin Chemicals Limited (1 from 127 patents)

3. Tachikawa Corporation (1 from 21 patents)


1 patent:

1. 4978181 - Sunshade

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1/21/2026
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