Growing community of inventors

Kumagaya, Japan

Shigeru Oguma

Average Co-Inventor Count = 3.46

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 = 124

Shigeru Oguma ↔ Yoshihito Yoshizawa (2 patents)Shigeru Oguma ↔ Kiyotaka Yamauchi (2 patents)Shigeru Oguma ↔ Shigeo Fujii (1 patent)Shigeru Oguma ↔ Juro Endo (1 patent)Shigeru Oguma ↔ Shiro Murakami (1 patent)Shigeru Oguma ↔ Masayuki Nakao (1 patent)Shigeru OgumaShigeru Oguma (3 patents)Yoshihito YoshizawaYoshihito Yoshizawa (42 patents)Kiyotaka YamauchiKiyotaka Yamauchi (19 patents)Shigeo FujiiShigeo Fujii (25 patents)Juro EndoJuro Endo (11 patents)Shiro MurakamiShiro Murakami (6 patents)Masayuki NakaoMasayuki Nakao (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Metals, Ltd. (3 from 2,333 patents)


3 patents:

1. 5160379 - Fe-base soft magnetic alloy and method of producing same

2. 4881989 - Fe-base soft magnetic alloy and method of producing same

3. 4774130 - Magnetic recording medium

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as of
12/30/2025
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