Inventor
Fumio Takahata
Inventor
Tokyo, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission44%
H04JMultiplex communication22%
H04LTransmission of digital information, e.g. telegraphic communication22%
H04WWireless communication networks11%
PatentTitleYear
9,979,516Transmission device that performs multi-user MIMO transmission for performing spatial multiplexing and transmitting of a plurality of packets addressed to a plurality of reception devices20184,910,792'Up-link power control in satellite communications system'19904,870,642'Demand-assignment communication system'19894,783,779'Frequency assignment system in FDMA communication system'19884,075,429'Transmultiplexer'19784,045,614'System for controlling polarity state of start-stop telegraph signal train'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1990Patents assigned to KOKUSAI DENSHIN DENWA CO LTD (5)· patent assignee history
1977–1990Based in Tokyo, JP· patent location history
2018Patents assigned to SHARP KK (1)· patent assignee history
2018Patents assigned to UNIV WASEDA (1)· patent assignee history
2018Based in Shinjuku-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KOKUSAI DENSHIN DENWA CO LTD | 5 | 1977–1990 |
| SHARP KK | 1 | 2018 |
| UNIV WASEDA | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 5 | 1977–1990 |
| Shinjuku-ku, JP | 1 | 2018 |