Growing community of inventors

Katsuta, Japan

Norio Nitta

Average Co-Inventor Count = 3.00

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 = 48

Norio Nitta ↔ Yasunori Ogawa (2 patents)Norio Nitta ↔ Kazuhiro Segawa (1 patent)Norio Nitta ↔ Mutsuo Harada (1 patent)Norio NittaNorio Nitta (2 patents)Yasunori OgawaYasunori Ogawa (14 patents)Kazuhiro SegawaKazuhiro Segawa (7 patents)Mutsuo HaradaMutsuo Harada (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Koki Co., Ltd. (2 from 1,267 patents)


2 patents:

1. D343345 - Portable electric hammer

2. D335619 - Portable electric hammer

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as of
12/8/2025
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