Growing community of inventors

Kawagoe, Japan

Kiichiro Yamamoto

Average Co-Inventor Count = 2.00

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 = 4

Kiichiro Yamamoto ↔ Shigeru Toyosumi (1 patent)Kiichiro YamamotoKiichiro Yamamoto (1 patent)Shigeru ToyosumiShigeru Toyosumi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Shipbuilding & Machinery Co., Ltd. (1 from 6 patents)


1 patent:

1. 3946620 - Gear with a trochoidal curved disk

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12/20/2025
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