Growing community of inventors

Tokyo, Japan

Kazuhisa Yotsuya

Average Co-Inventor Count = 1.00

ph-index = 2

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 = 72

Kazuhisa YotsuyaKazuhisa Yotsuya (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hakuba Photo Industry Co. Ltd. (2 from 6 patents)


2 patents:

1. D357493 - Table tripod

2. D357267 - Mini tripod

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as of
12/18/2025
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