Growing community of inventors

Norcross, GA, United States of America

Arifumi Tomikawa

Average Co-Inventor Count = 2.00

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 = 23

Arifumi Tomikawa ↔ Nihiko Yasukawa (2 patents)Arifumi TomikawaArifumi Tomikawa (2 patents)Nihiko YasukawaNihiko Yasukawa (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Oki Electric Industry Co., Ltd. (2 from 4,979 patents)


2 patents:

1. 4840258 - Brief case with a portable wireless telephone

2. 4790417 - Brief case with a portable wireless telephone

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1/3/2026
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