Growing community of inventors

Sendai, Japan

Yoshifumi Hatakeyama

Average Co-Inventor Count = 7.00

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 = 1

Yoshifumi Hatakeyama ↔ Hiroshi Harada (1 patent)Yoshifumi Hatakeyama ↔ Takeshi Hasegawa (1 patent)Yoshifumi Hatakeyama ↔ Yasuo Takemura (1 patent)Yoshifumi Hatakeyama ↔ Ichiro Terunuma (1 patent)Yoshifumi Hatakeyama ↔ Atsushi Momota (1 patent)Yoshifumi Hatakeyama ↔ Makoto Katoh (1 patent)Yoshifumi HatakeyamaYoshifumi Hatakeyama (1 patent)Hiroshi HaradaHiroshi Harada (62 patents)Takeshi HasegawaTakeshi Hasegawa (25 patents)Yasuo TakemuraYasuo Takemura (21 patents)Ichiro TerunumaIchiro Terunuma (8 patents)Atsushi MomotaAtsushi Momota (6 patents)Makoto KatohMakoto Katoh (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujikura Limited (1 from 1,801 patents)

2. Kyoei Electric Co., Ltd. (1 from 2 patents)


1 patent:

1. 8091218 - Method of manufacturing a rigid printed wiring board

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12/7/2025
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