Growing community of inventors

Saitama, Japan

Tohru Akiyama

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 2

Tohru AkiyamaTakashi Okano (1 patent)Tohru AkiyamaTohru Akiyama (1 patent)Takashi OkanoTakashi Okano (30 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pioneer Video Corporation (1 from 96 patents)


1 patent:

1. 4965781 - Data reading device having servo controlled position reset

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as of
12/20/2025
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