Growing community of inventors

Kawagoe, Japan

Tsutomu Kayama

Average Co-Inventor Count = 7.00

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 = 116

Tsutomu Kayama ↔ Nobuo Utsugi (1 patent)Tsutomu Kayama ↔ Shogo Takeuchi (1 patent)Tsutomu Kayama ↔ Ryohei Terada (1 patent)Tsutomu Kayama ↔ Yoshiaki Nagai (1 patent)Tsutomu Kayama ↔ Hideki Kitazawa (1 patent)Tsutomu Kayama ↔ Kohichi Tanimoto (1 patent)Tsutomu KayamaTsutomu Kayama (1 patent)Nobuo UtsugiNobuo Utsugi (5 patents)Shogo TakeuchiShogo Takeuchi (3 patents)Ryohei TeradaRyohei Terada (1 patent)Yoshiaki NagaiYoshiaki Nagai (1 patent)Hideki KitazawaHideki Kitazawa (1 patent)Kohichi TanimotoKohichi Tanimoto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pioneer Electronic Corporation (1 from 2,861 patents)


1 patent:

1. 5070431 - Display board illuminating device for passive displays

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12/18/2025
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