Growing community of inventors

Susono, Japan

Naoyuki Hayakawa

Average Co-Inventor Count = 2.00

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 = 3

Naoyuki HayakawaTakeshi Kitayama (1 patent)Naoyuki HayakawaNaoyuki Hayakawa (1 patent)Takeshi KitayamaTakeshi Kitayama (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyota Jidosha Kabushiki Kaisha (1 from 36,546 patents)


1 patent:

1. 8844507 - PCV system for internal combustion engine

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as of
12/15/2025
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