Growing community of inventors

Hamamatsu, Japan

Masahiro Koyama

Average Co-Inventor Count = 1.50

ph-index = 4

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 = 63

Masahiro KoyamaYasuyoshi Nakajima (2 patents)Masahiro KoyamaYasushi Kurakake (1 patent)Masahiro KoyamaIwao Higashi (1 patent)Masahiro KoyamaTakuro Sone (1 patent)Masahiro KoyamaToshiyuki Ito (1 patent)Masahiro KoyamaMasahiro Koyama (7 patents)Yasuyoshi NakajimaYasuyoshi Nakajima (3 patents)Yasushi KurakakeYasushi Kurakake (25 patents)Iwao HigashiIwao Higashi (20 patents)Takuro SoneTakuro Sone (16 patents)Toshiyuki ItoToshiyuki Ito (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yamaha Corporation (7 from 5,452 patents)


7 patents:

1. 7470854 - Electronic music apparatus

2. 6518491 - Apparatus and method for automatically generating musical composition data for use on portable terminal

3. 5895449 - Singing sound-synthesizing apparatus and method

4. 5744741 - Digital signal processing device for sound signal processing

5. 5646362 - Sound parameter editing device for an electronic musical instrument

6. 5391827 - Electronic musical instrument having a musical tone parameter display

7. 5361672 - Electronic musical instrument with help key for displaying the function

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