Growing community of inventors

Utsunomiya, Japan

Keizo Takahashi

Average Co-Inventor Count = 2.00

ph-index = 2

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 = 172

Keizo TakahashiMasakazu Matsumoto (2 patents)Keizo TakahashiKeizo Takahashi (2 patents)Masakazu MatsumotoMasakazu Matsumoto (3 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mitutoyo Corporation (2 from 1,622 patents)


2 patents:

1. 5189805 - Coordinate measuring machine

2. 5187874 - Coordinate measuring machine with protected origin point blocks

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idiyas.com
as of
12/21/2025
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