Growing community of inventors

Chiba, Japan

Masashi Matsumura

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 = 6

Masashi Matsumura ↔ Keiichi Shibata (1 patent)Masashi Matsumura ↔ Takatoshi Hirata (1 patent)Masashi MatsumuraMasashi Matsumura (1 patent)Keiichi ShibataKeiichi Shibata (12 patents)Takatoshi HirataTakatoshi Hirata (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (1 from 58,130 patents)


1 patent:

1. 5519677 - Biaxial actuator for driving an objective lens in both focusing and

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/17/2025
Loading…