Growing community of inventors

Tomioka, Japan

Osamu Niijima

Average Co-Inventor Count = 5.09

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 = 0

Osamu NiijimaMasaki Gotoh (2 patents)Osamu NiijimaHiroshi Miyajima (2 patents)Osamu NiijimaAtsushi Kajihara (2 patents)Osamu NiijimaMakoto Matsumoto (1 patent)Osamu NiijimaKento Suzuki (1 patent)Osamu NiijimaYuta Uchiumi (1 patent)Osamu NiijimaOsamu Niijima (2 patents)Masaki GotohMasaki Gotoh (4 patents)Hiroshi MiyajimaHiroshi Miyajima (4 patents)Atsushi KajiharaAtsushi Kajihara (3 patents)Makoto MatsumotoMakoto Matsumoto (19 patents)Kento SuzukiKento Suzuki (13 patents)Yuta UchiumiYuta Uchiumi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Gotoh Gut Co., Ltd. (2 from 13 patents)

2. Gunma Prefecture (2 from 6 patents)


2 patents:

1. 11948544 - Musical instrument tuner, musical performance support device and musical instrument management device

2. 11094298 - Capo

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1/3/2026
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