Growing community of inventors

Sendai, Japan

Kouji Hirai

Average Co-Inventor Count = 3.75

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 = 5

Kouji HiraiShigeru Ohkawa (1 patent)Kouji HiraiMitsuhiko Manpo (1 patent)Kouji HiraiYuuji Osada (1 patent)Kouji HiraiTakashi Yokoyama (1 patent)Kouji HiraiNoriaki Shindo (1 patent)Kouji HiraiHiroyuki Otsuki (1 patent)Kouji HiraiKouji Hirai (2 patents)Shigeru OhkawaShigeru Ohkawa (3 patents)Mitsuhiko ManpoMitsuhiko Manpo (3 patents)Yuuji OsadaYuuji Osada (2 patents)Takashi YokoyamaTakashi Yokoyama (2 patents)Noriaki ShindoNoriaki Shindo (1 patent)Hiroyuki OtsukiHiroyuki Otsuki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujitsu Corporation (2 from 39,237 patents)


2 patents:

1. 9735815 - Radio apparatus

2. 8014736 - Distortion compensating apparatus, wireless communicating apparatus, and distortion compensating method

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as of
12/18/2025
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