Growing community of inventors

Yokohama, Japan

Hideo Yokoyama

Average Co-Inventor Count = 2.25

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 = 14

Hideo YokoyamaSeiji Tomita (3 patents)Hideo YokoyamaShigeo Yamada (1 patent)Hideo YokoyamaHideo Yokoyama (3 patents)Seiji TomitaSeiji Tomita (20 patents)Shigeo YamadaShigeo Yamada (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tokyo Shibaura Denki Kabushiki Kaisha (3 from 2,916 patents)


3 patents:

1. 4519558 - Tape player

2. 4492995 - Tape cassette loading and ejection device

3. 4360174 - Cassette tape recorder

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idiyas.com
as of
12/21/2025
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