Tokyo
Japan
40
2025-09-04
The entities that hold a legal rights for patent applications filed by inventor Yoshida Junji:
Junji Yoshida from Tokyo, JP has applied for patents for these inventions. The list has both pending applications and granted patents:
WAVELENGTH-VARIABLE LASER
#2 | 2025-01-16RAMAN AMPLIFIER AND METHOD FOR DESIGNING RAMAN AMPLIFIER
#3 | 2024-10-03LIGHT SOURCE, LIGHT SOURCE DEVICE, METHOD OF DRIVING LIGHT SOURCE, RAMAN AMPLIFIER, AND RAMAN AMPLIFICATION SYSTEM
#4 | 2024-08-29WAVELENGTH-VARIABLE LASER
#5 | 2023-07-20LIGHT SOURCE, LIGHT SOURCE DEVICE, METHOD OF DRIVING LIGHT SOURCE, RAMAN AMPLIFIER, AND RAMAN AMPLIFICATION SYSTEM
#6 | 2023-06-15Wavelength-variable laser
#7 | 2021-07-08Wavelength-variable laser
#8 | 2021-06-17Wavelength-variable laser
#9 | 2021-06-03Air cleaner
#10 | 2020-05-21Constant velocity joint and assembly method therefor
#11 | 2020-02-27Wavelength-variable laser
#12 | 2018-11-15Wavelength-variable laser
#13 | 2017-10-05Optical unit, fixing mechanism for optical unit, and semiconductor laser module
#14 | 2017-06-29Optical semiconductor device, semiconductor laser module, and optical fiber amplifier
#15 | 2016-10-13Semiconductor laser array, semiconductor laser element, semiconductor laser module, and wavelength-variable laser assembly
#16 | 2016-09-29Method of designing semiconductor laser device, method of designing raman amplifier, methods of manufacturing semiconductor laser device, semiconductor laser device, raman amplifier, and optical communication system
#17 | 2015-10-29Optical semiconductor device, semiconductor laser module, and optical fiber amplifier
#18 | 2015-05-28SEMICONDUCTOR LASER MODULE
#19 | 2015-04-16Optical semiconductor device, semiconductor laser module, and optical fiber amplifier
#20 | 2014-10-23SEMICONDUCTOR LASER WITH VARIED-WIDTH WAVEGUIDE AND SEMICONDUCTOR LASER MODULE INCLUDING THE SAME
#21 | 2013-06-13OPTICAL SEMICONDUCTOR DEVICE AND PUMPING LIGHT SOURCE FOR OPTICAL FIBER AMPLIFIER
#22 | 2011-07-07Optical semiconductor device and pumping light source for optical fiber amplifier
#23 | 2010-09-30Semiconductor optical amplifier
#24 | 2007-03-20Semiconductor laser device, semiconductor laser module, and optical fiber amplifier using the semiconductor laser module
#25 | 2006-07-25Semiconductor laser apparatus, semiconductor laser module, optical fiber amplifier and semiconductor laser usage determining method
#26 | 2006-07-04Ridge waveguide semiconductor laser diode
#27 | 2006-07-04Semiconductor laser device, semiconductor laser module, and optical fiber amplifier
#28 | 2006-02-28Semiconductor laser device and optical fiber amplifier using the same
#29 | 2006-02-07Semiconductor laser device and semiconductor laser module
#30 | 2005-11-22Semiconductor laser device with a strain reduction cushion function, semiconductor laser module, and semiconductor laser device fabrication method
#31 | 2005-11-10Semiconductor laser module and optical transmission apparatus using the semiconductor laser module
#32 | 2005-09-27Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) and stimulated brillouin scattering (SBS)
#33 | 2005-09-20Semiconductor laser device for use in a laser module
#34 | 2005-08-23Semiconductor laser module and Raman amplifier
#35 | 2005-05-31Semiconductor laser module, optical measuring method and optical measuring apparatus
#36 | 2005-05-24Semiconductor laser device, semiconductor laser module, Raman amplifier using the device or module, and method for forming a suitable current blocking layer
#37 | 2005-04-05Semiconductor laser device, semiconductor laser module, and optical fiber amplifier
#38 | 2005-03-22Semiconductor laser devices, and semiconductor laser modules and optical communication systems using the same
#39 | 2005-01-27Semiconductor laser device, semiconductor laser module, and Raman amplifier using the device or module
#40 | 2005-01-18Semiconductor laser device, semiconductor laser module, and optical fiber amplifier using the device or module
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