Growing community of inventors

Yokohama, Japan

Yasuhiro Naganuma

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 = 3

Yasuhiro NaganumaIchiro Tsuchiya (1 patent)Yasuhiro NaganumaKazuya Kuwahara (1 patent)Yasuhiro NaganumaYasushi Koyano (1 patent)Yasuhiro NaganumaHiroyoshi Yamamoto (1 patent)Yasuhiro NaganumaYasuhiro Naganuma (2 patents)Ichiro TsuchiyaIchiro Tsuchiya (34 patents)Kazuya KuwaharaKazuya Kuwahara (17 patents)Yasushi KoyanoYasushi Koyano (9 patents)Hiroyoshi YamamotoHiroyoshi Yamamoto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Electric Industries, Limited (2 from 10,239 patents)


2 patents:

1. 7379646 - Optical fiber product, method of fabricating optical cable, and characteristic evaluation method

2. 6530243 - Method of making an optical fiber with an improved UV-curable resin

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as of
12/8/2025
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