Growing community of inventors

Yamagata-ken, Japan

Hideo Sekikawa

Average Co-Inventor Count = 4.00

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 = 5

Hideo SekikawaKoji Maekawa (1 patent)Hideo SekikawaToshihiro Ishigaki (1 patent)Hideo SekikawaTomoyuki Shimada (1 patent)Hideo SekikawaHideo Sekikawa (1 patent)Koji MaekawaKoji Maekawa (10 patents)Toshihiro IshigakiToshihiro Ishigaki (8 patents)Tomoyuki ShimadaTomoyuki Shimada (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,912 patents)


1 patent:

1. 6740202 - Speaker diaphragm and method of manufacturing same

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1/8/2026
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