Inventor

Yukinobu Nakabayashi

Inventor

Tokyo, JP

Overview

7→

Patents

1995–2010

Patent span

Electricity

Primary field (CPC H)

Patents· 7 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary

G02BOptical elements, systems or apparatus21%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light21%

H04BTransmission21%

H04JMultiplex communication21%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%

H04QSelecting7%

PatentTitleYear

7,706,652'Optical waveguide device, optical module and method of aligning optical axes thereof'2010 6,597,830'Matrix optical switch and optical ADM'2003 6,404,968'Optical waveguide elements and a process for producing the same'2002 6,334,008'Optical circuit and method of fabricating the same'2001 5,808,785'Optical fiber amplifier and optical transmission system using the same'1998 5,600,481'Optical fiber amplifier and optical transmission system using the same'1997 5,436,760'Optical fiber amplifier with gain equalizing circuit'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2003Patents assigned to NEC CORP (6)· patent assignee history

1995–2003Based in Tokyo, JP· patent location history

2002Patents assigned to NGK INSULATORS LTD (1)· patent assignee history

2010Patents assigned to KONICA MINOLTA OPTO INC (1)· patent assignee history

2010Based in Hachioji, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NEC CORP	6	1995–2003
KONICA MINOLTA OPTO INC	1	2010
NGK INSULATORS LTD	1	2002

Locations

Location	Patents	Span
Tokyo, JP	6	1995–2003
Hachioji, JP	1	2010