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Inventor

Takeshi Umeki

Inventor
Atsugi, JP

Overview

2→
Patents
2011–2015
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein67%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light33%
PatentTitleYear
9,065,243'Optical amplifier'20157,940,451'Wavelength converter and wavelength conversion apparatus'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011–2015Patents assigned to NIPPON TELEGRAPH & TELEPHONE (2)· patent assignee history
2011–2015Based in Atsugi, JP· patent location history
2015Patents assigned to ASOBE MASAKI (1)· patent assignee history
2015Patents assigned to ENBUTSU KOUJI (1)· patent assignee history
2015Patents assigned to MIYAMOTO YUTAKA (1)· patent assignee history
2015Patents assigned to TAKARA HIDEHIKO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON TELEGRAPH & TELEPHONE22011–2015
ASOBE MASAKI12015
ENBUTSU KOUJI12015
MIYAMOTO YUTAKA12015
TAKARA HIDEHIKO12015
Locations
LocationPatentsSpan
Atsugi, JP22011–2015