Growing community of inventors

Tamano, Japan

Fujio Oka

Average Co-Inventor Count = 4.00

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 = 44

Fujio OkaChihiro Jyomuta (1 patent)Fujio OkaYoshiyuki Sakamoto (1 patent)Fujio OkaKunihiro Mitsuhashi (1 patent)Fujio OkaNaoto Aomori (1 patent)Fujio OkaChihiro Joumuta (1 patent)Fujio OkaHidetoshi Nishikawa (1 patent)Fujio OkaFujio Oka (2 patents)Chihiro JyomutaChihiro Jyomuta (2 patents)Yoshiyuki SakamotoYoshiyuki Sakamoto (1 patent)Kunihiro MitsuhashiKunihiro Mitsuhashi (1 patent)Naoto AomoriNaoto Aomori (1 patent)Chihiro JoumutaChihiro Joumuta (1 patent)Hidetoshi NishikawaHidetoshi Nishikawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsui Engineering and Shipbuilding Company Limited (2 from 244 patents)


2 patents:

1. 7333045 - Buried object detection sensor

2. 5048320 - Method and apparatus for impact-type inspection of structures

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as of
12/27/2025
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