Inventor profile of:

Junji Yoshida

City:

Tokyo

Country:

Japan

Published Applications:

40

Last publication date:

2025-09-04

Top Assignees for applications by Junji Yoshida

The entities that hold a legal rights for patent applications filed by inventor Yoshida Junji:

Recent patent applications by Yoshida Junji

Junji Yoshida from Tokyo, JP has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2025-09-04
US20250279629A1
Electricity

WAVELENGTH-VARIABLE LASER

#2 | 2025-01-16
US20250023316A1
Electricity

RAMAN AMPLIFIER AND METHOD FOR DESIGNING RAMAN AMPLIFIER

#3 | 2024-10-03
US20240332884A1
Electricity

LIGHT SOURCE, LIGHT SOURCE DEVICE, METHOD OF DRIVING LIGHT SOURCE, RAMAN AMPLIFIER, AND RAMAN AMPLIFICATION SYSTEM

#4 | 2024-08-29
US20240291240A1
Electricity

WAVELENGTH-VARIABLE LASER

#5 | 2023-07-20
US20230231629A1
Electricity

LIGHT SOURCE, LIGHT SOURCE DEVICE, METHOD OF DRIVING LIGHT SOURCE, RAMAN AMPLIFIER, AND RAMAN AMPLIFICATION SYSTEM

#6 | 2023-06-15
US20230187906A1
Electricity

Wavelength-variable laser

#7 | 2021-07-08
US20210210929A1
Electricity

Wavelength-variable laser

#8 | 2021-06-17
US20210184436A1
Electricity

Wavelength-variable laser

#9 | 2021-06-03
US20210164424A1
Mechanical engineering

Air cleaner

#10 | 2020-05-21
US20200158183A1
Mechanical engineering

Constant velocity joint and assembly method therefor

#11 | 2020-02-27
US20200067279A1
Electricity

Wavelength-variable laser

#12 | 2018-11-15
US20180331503A1
Electricity

Wavelength-variable laser

#13 | 2017-10-05
US20170288367A1
Electricity

Optical unit, fixing mechanism for optical unit, and semiconductor laser module

#14 | 2017-06-29
US20170187168A1
Electricity

Optical semiconductor device, semiconductor laser module, and optical fiber amplifier

#15 | 2016-10-13
US20160301193A1
Electricity

Semiconductor laser array, semiconductor laser element, semiconductor laser module, and wavelength-variable laser assembly

#16 | 2016-09-29
US20160285237A1
Electricity

Method 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 | 2015-10-29
US20150311676A1
Electricity

Optical semiconductor device, semiconductor laser module, and optical fiber amplifier

#18 | 2015-05-28
US20150146757A1
Electricity

SEMICONDUCTOR LASER MODULE

#19 | 2015-04-16
US20150103858A1
Electricity

Optical semiconductor device, semiconductor laser module, and optical fiber amplifier

#20 | 2014-10-23
US20140314113A1
Electricity

SEMICONDUCTOR LASER WITH VARIED-WIDTH WAVEGUIDE AND SEMICONDUCTOR LASER MODULE INCLUDING THE SAME

#21 | 2013-06-13
US20130149804A1
Electricity

OPTICAL SEMICONDUCTOR DEVICE AND PUMPING LIGHT SOURCE FOR OPTICAL FIBER AMPLIFIER

#22 | 2011-07-07
US20110164641A1
Electricity

Optical semiconductor device and pumping light source for optical fiber amplifier

#23 | 2010-09-30
US20100245987A1
Electricity

Semiconductor optical amplifier

#24 | 2007-03-20
US10748159
-

Semiconductor laser device, semiconductor laser module, and optical fiber amplifier using the semiconductor laser module

#25 | 2006-07-25
US10375038
-

Semiconductor laser apparatus, semiconductor laser module, optical fiber amplifier and semiconductor laser usage determining method

#26 | 2006-07-04
US10626104
-

Ridge waveguide semiconductor laser diode

#27 | 2006-07-04
US10366447
-

Semiconductor laser device, semiconductor laser module, and optical fiber amplifier

#28 | 2006-02-28
US9877952
-

Semiconductor laser device and optical fiber amplifier using the same

#29 | 2006-02-07
US10367884
-

Semiconductor laser device and semiconductor laser module

#30 | 2005-11-22
US10322664
-

Semiconductor laser device with a strain reduction cushion function, semiconductor laser module, and semiconductor laser device fabrication method

#31 | 2005-11-10
US20050249259A1
Electricity

Semiconductor laser module and optical transmission apparatus using the semiconductor laser module

#32 | 2005-09-27
US10251835
-

Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) and stimulated brillouin scattering (SBS)

#33 | 2005-09-20
US9832885
-

Semiconductor laser device for use in a laser module

#34 | 2005-08-23
US10329716
-

Semiconductor laser module and Raman amplifier

#35 | 2005-05-31
US10193232
-

Semiconductor laser module, optical measuring method and optical measuring apparatus

#36 | 2005-05-24
US10291513
-

Semiconductor laser device, semiconductor laser module, Raman amplifier using the device or module, and method for forming a suitable current blocking layer

#37 | 2005-04-05
US10259477
-

Semiconductor laser device, semiconductor laser module, and optical fiber amplifier

#38 | 2005-03-22
US10001057
-

Semiconductor laser devices, and semiconductor laser modules and optical communication systems using the same

#39 | 2005-01-27
US20050018727A1
Electricity

Semiconductor laser device, semiconductor laser module, and Raman amplifier using the device or module

#40 | 2005-01-18
US10287037
-

Semiconductor laser device, semiconductor laser module, and optical fiber amplifier using the device or module

InventorID:

286803 ⎘