Growing community of inventors

Yokkaichi, Japan

Hirokazu Akamatsu

Average Co-Inventor Count = 1.80

ph-index = 3

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 = 19

Hirokazu AkamatsuMasahiro Nishida (2 patents)Hirokazu AkamatsuToyokazu Uda (2 patents)Hirokazu AkamatsuHirokazu Akamatsu (3 patents)Masahiro NishidaMasahiro Nishida (2 patents)Toyokazu UdaToyokazu Uda (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Kasei Engineering Company (1 from 7 patents)

2. Ryoka Techno Engineering & Construction Co. (1 from 4 patents)

3. Ryoka Techono Engineering & Construction Co. (1 from 1 patent)


3 patents:

1. 5295805 - Rotating cylindrical treatment apparatus

2. 5277108 - Rotating cylindrical treatment apparatus

3. 4934928 - Rotating-drum heat treatment apparatus

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12/16/2025
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