Growing community of inventors

Hyogo, Japan

Koji Hagihara

Average Co-Inventor Count = 2.53

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 = 0

Koji HagiharaKazuya Hirata (4 patents)Koji HagiharaYasuto Kataoka (2 patents)Koji HagiharaYusuke Tomioka (1 patent)Koji HagiharaKoji Hagihara (4 patents)Kazuya HirataKazuya Hirata (9 patents)Yasuto KataokaYasuto Kataoka (13 patents)Yusuke TomiokaYusuke Tomioka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kobe Steel, Ltd. (3 from 1,886 patents)

2. Kobelco Compressors Corporation (1 from 4 patents)


4 patents:

1. 11371787 - Gas cooler

2. 11067081 - Screw compressor

3. 10895346 - Pressure vessel

4. 10415889 - Gas cooler having an insertable cooling portion

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as of
12/16/2025
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