Growing community of inventors

Hamamatsu, Japan

Masahiko Wakita

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 = 83

Masahiko WakitaTom Jen Tsai (3 patents)Masahiko WakitaMasahiko Wakita (3 patents)Tom Jen TsaiTom Jen Tsai (9 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yamaha Corporation (3 from 5,451 patents)


3 patents:

1. 6582235 - Method and apparatus for displaying music piece data such as lyrics and chord data

2. 6504090 - Apparatus and method for practice and evaluation of musical performance of chords

3. 6346666 - Apparatus and method for practice and evaluation of musical performance of chords

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as of
12/21/2025
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