Growing community of inventors

Tokyo, Japan

Katsuhiro Tokutake

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 = 13

Katsuhiro Tokutake ↔ Hiroaki Matsuda (1 patent)Katsuhiro Tokutake ↔ Susumu Matsumoto (1 patent)Katsuhiro TokutakeKatsuhiro Tokutake (2 patents)Hiroaki MatsudaHiroaki Matsuda (93 patents)Susumu MatsumotoSusumu Matsumoto (29 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Combi Corporation (2 from 192 patents)


2 patents:

1. D361213 - Chair for baby

2. D327715 - Toy vehicle

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as of
1/23/2026
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