Inventor
Michikazu Shima
Inventor
Kawasaki, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission40%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light25%
H04JMultiplex communication20%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems5%
H05BElectric heating5%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications5%
PatentTitleYear
6,061,173'Wavelength-division-multiplexing optical amplifier'20006,055,094'Optical amplifying apparatus'20005,870,217'Multi-wavelength optical batch amplification apparatus'19995,841,558'Auxiliary-signal transmission system'19985,822,112'Control apparatus for optical amplifier'19985,798,857'Auxiliary-signal transmission system'19985,764,404'Wavelength-division-multiplexing optical amplifier'19985,680,246'Optical amplifier and optical transmission apparatus'19975,625,481'Auxiliary-signal transmission system'19975,604,759'Drive circuit for electronic device'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2000Patents assigned to FUJITSU LTD (10)· patent assignee history
1997–2000Based in Kawasaki, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 10 | 1997–2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 10 | 1997–2000 |