Growing community of inventors

Tokyo, Japan

Hirofumi Iizuka

Average Co-Inventor Count = 5.00

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 = 1

Hirofumi IizukaAtsushi Miyamoto (2 patents)Hirofumi IizukaEiji Yamada (2 patents)Hirofumi IizukaMasaharu Hattori (2 patents)Hirofumi IizukaMasato Andou (2 patents)Hirofumi IizukaHirofumi Iizuka (2 patents)Atsushi MiyamotoAtsushi Miyamoto (67 patents)Eiji YamadaEiji Yamada (11 patents)Masaharu HattoriMasaharu Hattori (8 patents)Masato AndouMasato Andou (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kddi Corporation (2 from 446 patents)


2 patents:

1. 11546180 - Data management apparatus, data management method, and data communication system

2. 10892904 - Data management apparatus, data management method, and data communication system

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as of
1/5/2026
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