Growing community of inventors

Tokyo, Japan

Yohei Hirokawa

Average Co-Inventor Count = 1.50

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 = 37

Yohei HirokawaKazuhiro Okanoue (3 patents)Yohei HirokawaMasahiro Takei (2 patents)Yohei HirokawaMitsunori Morisaki (2 patents)Yohei HirokawaYohei Hirokawa (6 patents)Kazuhiro OkanoueKazuhiro Okanoue (50 patents)Masahiro TakeiMasahiro Takei (84 patents)Mitsunori MorisakiMitsunori Morisaki (11 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nec Corporation (6 from 35,689 patents)


6 patents:

1. 9392065 - Information processing system and information processing method

2. 9350691 - Information processing system, linkage server, and information processing method

3. 8855608 - Information processing system, mobile terminal, linkage server, and information processing method

4. 8670367 - Mobile terminal, method and program of notifying incoming call for mobile terminal

5. 7471952 - Data terminal device

6. 7013151 - Portable terminal device with built-in GPS

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as of
12/20/2025
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