Growing community of inventors

Tokyo, Japan

Chihiro Tsuchiya

Average Co-Inventor Count = 1.20

ph-index = 3

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 = 24

Chihiro Tsuchiya ↔ Roger Hulks (1 patent)Chihiro TsuchiyaChihiro Tsuchiya (3 patents)Roger HulksRoger Hulks (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Epoch Company, Ltd. (3 from 202 patents)


3 patents:

1. D724158 - Toy bus

2. D678961 - Doll house

3. D678962 - Toy car

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as of
12/12/2025
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