Inventor
Kuniharu Kato
Inventor
Ibaraki, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus45%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light14%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1014%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein9%
H04BTransmission9%
H04JMultiplex communication5%
H04QSelecting5%
PatentTitleYear
6,885,823'Wavelength multiplexing/demultiplexing unit, wavelength multiplexing/demultiplexing apparatus and wavelength multiplexing/demultiplexing method'20056,718,140'Optical wavelength division multiplexing transmission network device'20046,480,639'Optical module'20026,222,967'Packaging platform, optical module using the platform, and methods for producing the platform and the module'20016,164,836'Opto-electronic hybrid integration platform, optical sub-module, opto-electronic hybrid integration circuit, and process for fabricating platform'20006,027,254'Opto-electronic hybrid integration platform, optical sub-module, opto-electronic hybrid integration circuit, and process for fabricating platform'20005,621,837'Opto-electronic hybrid integration platform, optical sub-module, opto-electronic hybrid integration circuit and process for fabricating platform'19975,513,285'Compact optical switching module including thin-film heaters and trimmed thick-film fixed resistors'19965,436,995'Optical fiber connector unit and optical fiber connector'19955,327,517'Guided-wave circuit module and wave-guiding optical component equipped with the module'19945,247,594'Waveguide-type optical matrix switch'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2004Patents assigned to NIPPON TELEGRAPH & TELEPHONE (9)· patent assignee history
1993–1996Based in Naka, JP· patent location history
1995–2005Based in Ibaraki, JP· patent location history
1996Patents assigned to OKI ELECTRIC IND CO LTD (1)· patent assignee history
1997Based in Tokai, JP· patent location history
2000Based in Naka-gun, JP· patent location history
2001–2002Based in Tokyo, JP· patent location history
2005Patents assigned to NTT ELECTRONICS CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON TELEGRAPH & TELEPHONE | 9 | 1993–2004 |
| NTT ELECTRONICS CORP | 1 | 2005 |
| OKI ELECTRIC IND CO LTD | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 4 | 1995–2005 |
| Naka, JP | 3 | 1993–1996 |
| Tokyo, JP | 2 | 2001–2002 |
| Naka-gun, JP | 1 | 2000 |
| Tokai, JP | 1 | 1997 |