Growing community of inventors

Kyoto, Japan

Tatsuo Fukuyama

Average Co-Inventor Count = 3.75

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 = 43

Tatsuo Fukuyama ↔ Yasuomi Shimada (2 patents)Tatsuo Fukuyama ↔ Kenichi Takahashi (1 patent)Tatsuo Fukuyama ↔ Takafumi Ueno (1 patent)Tatsuo Fukuyama ↔ Toshiyuki Mizutani (1 patent)Tatsuo Fukuyama ↔ Shinichiro Ishii (1 patent)Tatsuo FukuyamaTatsuo Fukuyama (2 patents)Yasuomi ShimadaYasuomi Shimada (10 patents)Kenichi TakahashiKenichi Takahashi (32 patents)Takafumi UenoTakafumi Ueno (11 patents)Toshiyuki MizutaniToshiyuki Mizutani (2 patents)Shinichiro IshiiShinichiro Ishii (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Matsushita Electric Industrial Co., Ltd. (2 from 27,375 patents)


2 patents:

1. 4387275 - Speaker and speaker system

2. 4243839 - Transducer with flux sensing coils

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as of
12/13/2025
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