Growing community of inventors

Iruma, Japan

Hanji Oana

Average Co-Inventor Count = 4.00

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 = 8

Hanji Oana ↔ Hiroshi Watanabe (1 patent)Hanji Oana ↔ Ryushi Aoyama (1 patent)Hanji Oana ↔ Yasuhira Hironaka (1 patent)Hanji OanaHanji Oana (1 patent)Hiroshi WatanabeHiroshi Watanabe (12 patents)Ryushi AoyamaRyushi Aoyama (1 patent)Yasuhira HironakaYasuhira Hironaka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Abc Trading Co., Ltd. (1 from 5 patents)


1 patent:

1. 4235608 - Rotary-type counter-current heat exchanger

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as of
12/19/2025
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