Inventor
Katsumi Uesaka
Inventor
Yokohama, JP
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light35%
H04BTransmission24%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein12%
G02BOptical elements, systems or apparatus9%
H03FAmplifiers9%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light6%
H03GControl of amplification3%
H03KPulse technique3%
PatentTitleYear
11,128,104Wavelength-tunable light source and wavelength control method for the same20219,819,149'Optical transmitter implementing wavelength tunable diode'20179,686,018'Optical transmitter emitting light with narrowed linewidth'20179,444,221'Laser apparatus and method to re-tune emission wavelength tunable LD'20169,395,487'Wavelength monitor'20169,395,504'System to control wavelength and method to control wavelength'20169,274,399'Optical modulator'20168,781,263'Optical modulator'20148,660,388'Optical modulation apparatus, method for controlling optical modulator, and control device for optical modulator'20148,620,116'Optical modulation apparatus, method for controlling optical modulation apparatus'20138,216,866'Method to manufacture semiconductor device with optical grating'20128,218,976'Optical receiver with trans-impedance responding in bit-by-bit to input signal'20128,121,160'Driver circuit for semiconductor laser diode driven in differential mode'20127,978,741'Optical transmitter with a shunt driving configuration and a load transistor operated in common gate mode'20117,912,380'Optical receiver'20117,492,797'Laser driver circuit'20097,483,459'Laser driver with selectable output impedance'20097,418,018'Driver circuit for semiconductor laser diode'20087,358,818'Optical receiver for an optical communication'20085,600,472'Distortion generating circuit'19975,329,173'Signal detecting circuit apparatus'19945,224,112'Semiconductor laser device driving circuit'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2021Patents assigned to SUMITOMO ELECTRIC INDUSTRIES (22)· patent assignee history
1993–2014Based in Kanagawa, JP· patent location history
1997–2017Based in Yokohama, JP· patent location history
2012–2014Patents assigned to UESAKA KATSUMI (6)· patent assignee history
2012Patents assigned to ISHIHARA KUNIAKI (1)· patent assignee history
2012Patents assigned to MOTO AKIHIRO (1)· patent assignee history
2014–2021Based in Osaka, JP· patent location history
2017Patents assigned to AIST (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUMITOMO ELECTRIC INDUSTRIES | 22 | 1993–2021 |
| UESAKA KATSUMIself | 6 | 2012–2014 |
| AIST | 1 | 2017 |
| ISHIHARA KUNIAKI | 1 | 2012 |
| MOTO AKIHIRO | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 14 | 1997–2017 |
| Kanagawa, JP | 6 | 1993–2014 |
| Osaka, JP | 2 | 2014–2021 |