Growing community of inventors

Tokyo, Japan

Takeho Yamada

Average Co-Inventor Count = 3.00

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 = 9

Takeho YamadaMasato Yamagata (1 patent)Takeho YamadaKanji Ohnishi (1 patent)Takeho YamadaTakeho Yamada (1 patent)Masato YamagataMasato Yamagata (11 patents)Kanji OhnishiKanji Ohnishi (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (1 from 58,130 patents)


1 patent:

1. 5233644 - Cordless telephone with actuation of off-hook condition by operation of

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12/20/2025
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