LexDanaLexDanabeta
Inventor

Kouichi Minemura

Inventor
Tokyo, JP

Overview

3→
Patents
1981–1987
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.

H04Bprimary
H04BTransmission40%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light20%
G02BOptical elements, systems or apparatus20%
H04LTransmission of digital information, e.g. telegraphic communication20%
PatentTitleYear
4,706,300'Optical heterodyne detection pulse receiving system and method'19874,289,373'Bidirectional optical fiber transmission system'19814,285,570'Light branching device'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to NIPPON ELECTRIC CO (2)· patent assignee history
1981–1987Based in Tokyo, JP· patent location history
1987Patents assigned to NEC CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON ELECTRIC CO21981
NEC CORP11987
Locations
LocationPatentsSpan
Tokyo, JP31981–1987