Growing community of inventors

Kitakyushu, Japan

Ryuji Matsubara

Average Co-Inventor Count = 3.00

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

Ryuji MatsubaraKatsuaki Nakamura (1 patent)Ryuji MatsubaraNobuyuki Ashie (1 patent)Ryuji MatsubaraRyuji Matsubara (1 patent)Katsuaki NakamuraKatsuaki Nakamura (3 patents)Nobuyuki AshieNobuyuki Ashie (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


1 patent:

1. 6458222 - Metal material, brass and method for manufacturing the same

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as of
12/21/2025
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