Growing community of inventors

Osaka, Japan

Nobuki Matsuzaki

Average Co-Inventor Count = 2.00

ph-index = 3

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 = 75

Nobuki Matsuzaki ↔ Sachiko Tone (3 patents)Nobuki MatsuzakiNobuki Matsuzaki (3 patents)Sachiko ToneSachiko Tone (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kokuyo Kabushiki Kaisha (3 from 8 patents)


3 patents:

1. D449856 - Ballpoint pen

2. D437352 - Ballpoint pen

3. D430607 - Mechanical pencil

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idiyas.com
as of
12/13/2025
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