Growing community of inventors

Hirakata, Japan

Hidemichi Sumisha

Average Co-Inventor Count = 2.25

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 = 55

Hidemichi SumishaSeiko Minamide (2 patents)Hidemichi SumishaSatoshi Kikuya (1 patent)Hidemichi SumishaSeikou Minamide (1 patent)Hidemichi SumishaHidemichi Sumisha (3 patents)Seiko MinamideSeiko Minamide (11 patents)Satoshi KikuyaSatoshi Kikuya (13 patents)Seikou MinamideSeikou Minamide (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Matsushita Electric Industrial Co., Ltd. (3 from 27,375 patents)


3 patents:

1. 4485988 - Tape cassette

2. D274327 - Cassette for video tape recorder

3. D271392 - Cassette for video tape recorder

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as of
12/7/2025
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