Inventor
Shigekazu Harada
Inventor
Tokyo, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Jprimary
H04JMultiplex communication42%
H04LTransmission of digital information, e.g. telegraphic communication25%
H04QSelecting17%
B41JTypewriters8%
H04BTransmission8%
PatentTitleYear
10,933,630Liquid ejection device and multi-nozzle liquid ejection device20218,139,940'Wavelength division multiplexing transmission system and remote apparatus and station apparatus used therein'20127,684,703'Wavelength division multiplexing transmission system and remote apparatus and station apparatus used therein'20107,609,728'Optical transmission switching device'20097,580,634'Transmission method, transmitter-receiver, and transmitting-receiving system'20097,372,804'Multiplex communication system and method'20087,295,779'Wavelength division-multiplexing optical transmission system'20076,574,019'Transmission system, and station unit and remote units to be used therein'20035,963,558'Data transmission system and a terminal management method of the same'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2012Patents assigned to NEC CORP (8)· patent assignee history
1999–2012Based in Tokyo, JP· patent location history
2012Patents assigned to HARADA SHIGEKAZU (1)· patent assignee history
2021Patents assigned to TOSHIBA TEC KK (1)· patent assignee history
2021Based in Shizuoka-shi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NEC CORP | 8 | 1999–2012 |
| HARADA SHIGEKAZUself | 1 | 2012 |
| TOSHIBA TEC KK | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 8 | 1999–2012 |
| Shizuoka-shi, JP | 1 | 2021 |