Growing community of inventors

Tokyo, Japan

Toshiaki Okiyama

Average Co-Inventor Count = 1.29

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 = 42

Toshiaki OkiyamaToshio Kawamata (1 patent)Toshiaki OkiyamaHaruo Takenaka (1 patent)Toshiaki OkiyamaToshiaki Okiyama (3 patents)Toshio KawamataToshio Kawamata (30 patents)Haruo TakenakaHaruo Takenaka (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fuji Photo Film Company, Limited (3 from 16,458 patents)


3 patents:

1. 4420528 - Transfer film for electrophotographic copier

2. 4352847 - Transfer film for use in electrophotographic copiers

3. 4071362 - Electrophotographic copying film

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as of
1/7/2026
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