Growing community of inventors

Tokyo, Japan

Toshihiro Miyakawa

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 = 0

Toshihiro Miyakawa ↔ Masamichi Shibata (1 patent)Toshihiro Miyakawa ↔ Yoshiaki Hyodo (1 patent)Toshihiro MiyakawaToshihiro Miyakawa (1 patent)Masamichi ShibataMasamichi Shibata (4 patents)Yoshiaki HyodoYoshiaki Hyodo (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Koyo Seiko Company, Ltd. (1 from 772 patents)

2. Nippon Koshuha Steel Co., Ltd. (1 from 13 patents)


1 patent:

1. 4911885 - High carbon chromium bearing steel

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12/20/2025
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