Growing community of inventors

Saitama, Japan

Yuji Terao

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 = 15

Yuji TeraoYuji Terao (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Pentax Corporation (4 from 1,056 patents)

2. Hoya Corporation (2 from 2,530 patents)


6 patents:

1. 7941889 - Cleaning tool for photographic device

2. D593267 - Cleaner

3. 7490380 - Cleaning tool for photographic device

4. D561960 - Cleaner

5. D560318 - Cleaner

6. D560320 - Cleaner

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as of
1/2/2026
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