Growing community of inventors

Ichikawa, Japan

Tadayuki Sekiya

Average Co-Inventor Count = 4.61

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 = 35

Tadayuki SekiyaNoboru Sawayama (2 patents)Tadayuki SekiyaShinichi Kamiyama (2 patents)Tadayuki SekiyaMasayuki Takashima (2 patents)Tadayuki SekiyaHideo Yuh (2 patents)Tadayuki SekiyaToshiro Bando (1 patent)Tadayuki SekiyaToshio Shiina (1 patent)Tadayuki SekiyaMasao Yaejima (1 patent)Tadayuki SekiyaTadayuki Sekiya (3 patents)Noboru SawayamaNoboru Sawayama (38 patents)Shinichi KamiyamaShinichi Kamiyama (5 patents)Masayuki TakashimaMasayuki Takashima (4 patents)Hideo YuhHideo Yuh (2 patents)Toshiro BandoToshiro Bando (5 patents)Toshio ShiinaToshio Shiina (4 patents)Masao YaejimaMasao Yaejima (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ricoh Company, Ltd. (3 from 28,559 patents)


3 patents:

1. 4901113 - Image-forming device

2. 4814821 - Image-forming device

3. 3936041 - Automatic original supply device for electronic copying apparatus

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as of
12/17/2025
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