Growing community of inventors

Minamiashigara, Japan

Mamoru Sumita

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 = 15

Mamoru Sumita ↔ Kenji Yokoi (1 patent)Mamoru Sumita ↔ Sumie Ishikawa (1 patent)Mamoru SumitaMamoru Sumita (1 patent)Kenji YokoiKenji Yokoi (7 patents)Sumie IshikawaSumie Ishikawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,494 patents)


1 patent:

1. D306578 - Optical disk drive unit for electronic computer

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as of
12/16/2025
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