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Inventor

Masayuki Yasunaga

Inventor
Tokyo, JP

Overview

4→
Patents
1990–1993
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H01Qprimary
H01QAntennas, i.e. radio aerials50%
H04BTransmission50%
PatentTitleYear
5,204,981'Interference elimination system'19935,173,711'Microstrip antenna for two-frequency separate-feeding type for circularly polarized waves'19925,170,176'Quadrifilar helix antenna'19924,893,350'Interference cancellation system'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1993Patents assigned to KOKUSAI DENSHIN DENWA CO LTD (4)· patent assignee history
1990–1993Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOKUSAI DENSHIN DENWA CO LTD41990–1993
Locations
LocationPatentsSpan
Tokyo, JP41990–1993