Growing community of inventors

Tokyo, Japan

Daisuke Matsuyama

Average Co-Inventor Count = 1.00

ph-index = 6

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 = 71

Daisuke MatsuyamaDaisuke Matsuyama (13 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Epoch Company, Ltd. (13 from 202 patents)


13 patents:

1. D1023164 - Toy car

2. D1004009 - Toy house

3. D969932 - Toy house

4. D969933 - Toy merry-go-round

5. D924985 - Toy car

6. D901599 - Toy house

7. D901601 - Toy house

8. D901600 - Toy house

9. D901602 - Toy ropeway

10. D884091 - Toy house

11. D872810 - Toy house

12. D859540 - Toy house

13. D852901 - Toy bus

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as of
12/12/2025
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