Growing community of inventors

Kanagawa, Japan

Naoki Okayama

Average Co-Inventor Count = 5.54

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 = 232

Naoki OkayamaNaoki Kamaya (2 patents)Naoki OkayamaToshiyuki Yamauchi (2 patents)Naoki OkayamaYukio Yamada (1 patent)Naoki OkayamaAkinari Mori (1 patent)Naoki OkayamaYoshisada Okayasu (1 patent)Naoki OkayamaTakanori Maruichi (1 patent)Naoki OkayamaJunichi Iwasawa (1 patent)Naoki OkayamaRenjiro Okano (1 patent)Naoki OkayamaToshiki Takekuma (1 patent)Naoki OkayamaNaoki Okayama (2 patents)Naoki KamayaNaoki Kamaya (29 patents)Toshiyuki YamauchiToshiyuki Yamauchi (15 patents)Yukio YamadaYukio Yamada (24 patents)Akinari MoriAkinari Mori (15 patents)Yoshisada OkayasuYoshisada Okayasu (9 patents)Takanori MaruichiTakanori Maruichi (5 patents)Junichi IwasawaJunichi Iwasawa (3 patents)Renjiro OkanoRenjiro Okano (2 patents)Toshiki TakekumaToshiki Takekuma (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (2 from 58,132 patents)


2 patents:

1. 5276471 - Image displaying device

2. 5189520 - Video camera modular accessory apparatus

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as of
1/22/2026
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