Inventor
Ippei Shake
Inventor
Yokohama, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission33%
H04LTransmission of digital information, e.g. telegraphic communication33%
H04JMultiplex communication17%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein11%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light6%
PatentTitleYear
8,625,588'Packet transmission method and packet transmission device'20147,869,428'Packet transmission method and packet transmission device'20117,684,697'Optical signal quality monitoring circuit and optical signal quality monitoring method'20107,200,328'Method and system for determining origin of optical signal quality degradation'20077,190,752'Data signal quality evaluation method and apparatus using high speed sampling'20077,079,765'Optical wavelength division multiplex signal monitoring apparatus'20066,842,565'Optical modulation/multiplexing circuit'20056,720,548'Optical sampling waveform measuring apparatus aiming at achieving wider band'20046,697,395'Sum frequency light generation method and sum frequency light generation apparatus adapatble for wide-band wavelength conversion'20046,587,242'Optical transmission system'20036,396,601'System for monitoring quality of optical signals having different bit rates'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2014Patents assigned to NIPPON TELEGRAPH & TELEPHONE (11)· patent assignee history
2002Based in Tokyo, JP· patent location history
2003–2014Based in Yokohama, JP· patent location history
2004Patents assigned to ANRITSU CORP (2)· patent assignee history
2010Based in Kanagawa, JP· patent location history
2014Patents assigned to FUKUTOKU MITSUNORI (1)· patent assignee history
2014Patents assigned to IMAJYUKU WATARU (1)· patent assignee history
2014Patents assigned to SHAKE IPPEI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON TELEGRAPH & TELEPHONE | 11 | 2002–2014 |
| ANRITSU CORP | 2 | 2004 |
| FUKUTOKU MITSUNORI | 1 | 2014 |
| IMAJYUKU WATARU | 1 | 2014 |
| SHAKE IPPEIself | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 9 | 2003–2014 |
| Kanagawa, JP | 1 | 2010 |
| Tokyo, JP | 1 | 2002 |