Growing community of inventors

Tokyo, Japan

Keiichiro Arai

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 = 0

Keiichiro AraiMasamichi Yamada (3 patents)Keiichiro AraiKazutaka Yamamoto (3 patents)Keiichiro AraiChiyo Sakenaga (3 patents)Keiichiro AraiKeiichiro Arai (3 patents)Masamichi YamadaMasamichi Yamada (119 patents)Kazutaka YamamotoKazutaka Yamamoto (4 patents)Chiyo SakenagaChiyo Sakenaga (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seikagaku Corporation (3 from 191 patents)


3 patents:

1. 11779593 - Agent for improving ocular subjective symptoms and method thereof

2. 11185558 - Agent for improving ocular subjective symptoms and method thereof

3. 11147831 - Agent for improving ocular subjective symptoms and method thereof

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as of
1/3/2026
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