Growing community of inventors

Fukuoka-ken, Japan

Chihiro Sugiyama

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 = 7

Chihiro Sugiyama ↔ Masanobu Wano (1 patent)Chihiro Sugiyama ↔ Takeshi Kaneda (1 patent)Chihiro Sugiyama ↔ Shigeru Asoh (1 patent)Chihiro Sugiyama ↔ Masaaki Ezawa (1 patent)Chihiro Sugiyama ↔ Hiroshi Nagakawa (1 patent)Chihiro Sugiyama ↔ Mitsunori Koga (1 patent)Chihiro SugiyamaChihiro Sugiyama (1 patent)Masanobu WanoMasanobu Wano (11 patents)Takeshi KanedaTakeshi Kaneda (4 patents)Shigeru AsohShigeru Asoh (1 patent)Masaaki EzawaMasaaki Ezawa (1 patent)Hiroshi NagakawaHiroshi Nagakawa (1 patent)Mitsunori KogaMitsunori Koga (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toto Ltd. (1 from 1,192 patents)


1 patent:

1. 8337033 - Washing counter

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as of
12/20/2025
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