Growing community of inventors

Yokohama, Japan

Kemmei Masuda

Average Co-Inventor Count = 3.00

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 = 2

Kemmei Masuda ↔ Shigeru Yamazaki (2 patents)Kemmei Masuda ↔ Toshio Tsuchiya (2 patents)Kemmei MasudaKemmei Masuda (2 patents)Shigeru YamazakiShigeru Yamazaki (21 patents)Toshio TsuchiyaToshio Tsuchiya (9 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (2 from 42,517 patents)


2 patents:

1. 7023635 - Recording/reproducing apparatus

2. 6717761 - Recording/reproducing apparatus

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as of
1/7/2026
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