Inventor
Takaharu Tomita
Inventor
Kawasaki, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus29%
H04BTransmission29%
H04JMultiplex communication29%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light14%
PatentTitleYear
6,684,004'Optical demultiplexer circuit and demultiplexer device and optical wavelength division multiplex circuit'20046,426,817'Optical wavelength multiplexing system and terminal'20026,215,582'Light amplifier device'20016,212,311'Light signal transmission system and light signal transmission method'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2004Patents assigned to FUJITSU LTD (4)· patent assignee history
2001–2004Based in Kawasaki, JP· patent location history
2002Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 4 | 2001–2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 3 | 2001–2004 |
| Kanagawa, JP | 1 | 2002 |