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Inventor

Yohtaro Umeda

Inventor
Kanagawa, JP

Overview

3→
Patents
2007–2011
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H03Kprimary
H03KPulse technique50%
H03FAmplifiers25%
H03GControl of amplification25%
PatentTitleYear
7,868,701'Transimpedance amplifier'20117,511,539'Driver circuit'20097,187,227'Driver circuit'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007–2009Patents assigned to NIPPON TELEGRAPH & TELEPHONE (2)· patent assignee history
2007–2009Based in Kanagawa, JP· patent location history
2011Patents assigned to NIPPON TELEPHONE AND TELEGRAPH CORP (1)· patent assignee history
2011Patents assigned to NTT ELECTRONICS CORP (1)· patent assignee history
2011Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON TELEGRAPH & TELEPHONE22007–2009
NIPPON TELEPHONE AND TELEGRAPH CORP12011
NTT ELECTRONICS CORP12011
Locations
LocationPatentsSpan
Kanagawa, JP22007–2009
Tokyo, JP12011