Growing community of inventors

Tokyo, Japan

Hideki Hirai

Average Co-Inventor Count = 1.11

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 = 13

Hideki HiraiMichiki Asai (1 patent)Hideki HiraiHideki Hirai (5 patents)Michiki AsaiMichiki Asai (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Honda Motor Co., Ltd. (4 from 21,875 patents)

2. Kibun Food Chemifa Co., Ltd. (1 from 5 patents)


5 patents:

1. 12134297 - Rear suspension construction

2. 11999215 - Rear suspension structure

3. 8052160 - Vehicular suspension device

4. 7798507 - Vehicle suspension apparatus

5. 6710038 - Emulsification method using propylene glycol hyaluronate

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as of
12/16/2025
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