Growing community of inventors

Osaka, Japan

Koichiro Hayashi

Average Co-Inventor Count = 2.00

ph-index = 2

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 = 63

Koichiro HayashiTamio Sakurai (2 patents)Koichiro HayashiKoichiro Hayashi (2 patents)Tamio SakuraiTamio Sakurai (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Itoki Co., Ltd. (2 from 27 patents)

2. Itoki Crebio Corporation (2 from 9 patents)


2 patents:

1. D512251 - Desk

2. D510492 - Desk

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as of
1/8/2026
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