Growing community of inventors

Fukuoka, Japan

Toshiaki Sakiyama

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 = 23

Toshiaki SakiyamaYuji Hirai (1 patent)Toshiaki SakiyamaHideyuki Matsuo (1 patent)Toshiaki SakiyamaHajime Sakai (1 patent)Toshiaki SakiyamaYouji Manabe (1 patent)Toshiaki SakiyamaKentaro Oka (1 patent)Toshiaki SakiyamaKeiko Sonoda (1 patent)Toshiaki SakiyamaToshiaki Sakiyama (2 patents)Yuji HiraiYuji Hirai (11 patents)Hideyuki MatsuoHideyuki Matsuo (6 patents)Hajime SakaiHajime Sakai (3 patents)Youji ManabeYouji Manabe (1 patent)Kentaro OkaKentaro Oka (1 patent)Keiko SonodaKeiko Sonoda (1 patent)
..
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. 6882713 - Telephone apparatus

2. 5519765 - Telephone answering machine

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idiyas.com
as of
12/13/2025
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