Growing community of inventors

Tokyo, Japan

Ryoichi Nagasaka

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 = 4

Ryoichi Nagasaka ↔ Tetsuji Hayashi (1 patent)Ryoichi Nagasaka ↔ Masumi Hayashi (1 patent)Ryoichi NagasakaRyoichi Nagasaka (1 patent)Tetsuji HayashiTetsuji Hayashi (9 patents)Masumi HayashiMasumi Hayashi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kayaba Kogyo Co., Ltd. (1 from 1 patent)


1 patent:

1. 6058962 - Flow rate regulating valve of hydraulic pump

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as of
12/17/2025
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