Growing community of inventors

Saitama, Japan

Takao Umezu

Average Co-Inventor Count = 4.00

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 = 7

Takao Umezu ↔ Haruo Onozuka (1 patent)Takao Umezu ↔ Seiji Takada (1 patent)Takao Umezu ↔ Muneyoshi Sato (1 patent)Takao UmezuTakao Umezu (1 patent)Haruo OnozukaHaruo Onozuka (24 patents)Seiji TakadaSeiji Takada (13 patents)Muneyoshi SatoMuneyoshi Sato (9 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fuji Photo Film Company, Limited (1 from 16,458 patents)


1 patent:

1. 5023470 - Electronic flash charging circuit

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12/5/2025
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