Growing community of inventors

Hiroshima, Japan

Tadamune Otsubo

Average Co-Inventor Count = 4.00

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 = 4

Tadamune Otsubo ↔ Hiroaki Tokiwa (1 patent)Tadamune Otsubo ↔ Masahiro Irie (1 patent)Tadamune Otsubo ↔ Kiyoshi Ikeda (1 patent)Tadamune OtsuboTadamune Otsubo (1 patent)Hiroaki TokiwaHiroaki Tokiwa (2 patents)Masahiro IrieMasahiro Irie (1 patent)Kiyoshi IkedaKiyoshi Ikeda (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Josho Gakuen Educational Foundation (1 from 8 patents)

2. Rikkyo Educational Corporation (1 from 2 patents)


1 patent:

1. 9738675 - Water-soluble photochromic compound

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12/6/2025
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