Growing community of inventors

Ibaraki, Japan

Norio Shirai

Average Co-Inventor Count = 5.00

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 = 22

Norio ShiraiHideomi Ishibe (1 patent)Norio ShiraiJotaro Kishimoto (1 patent)Norio ShiraiYukihide Noguchi (1 patent)Norio ShiraiKiyoshi Nagai (1 patent)Norio ShiraiNorio Shirai (1 patent)Hideomi IshibeHideomi Ishibe (7 patents)Jotaro KishimotoJotaro Kishimoto (7 patents)Yukihide NoguchiYukihide Noguchi (2 patents)Kiyoshi NagaiKiyoshi Nagai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Takeda Chemical Industries, Inc. (1 from 1,858 patents)

2. Nippon Seisen Co., Ltd. (1 from 15 patents)


1 patent:

1. 4662915 - Powder-air separator for use in a powder filling apparatus

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12/13/2025
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