Inventor
NOGIWA SEIJI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “NOGIWA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GIGAPHOTON INC
7 patentsUS10340654B2Jul 2, 2019
Laser apparatus and extreme ultraviolet light generating system
GIGAPHOTON INC6 citations71
US9847618B2Dec 19, 2017
Laser apparatus
GIGAPHOTON INC0 citations51
US11532920B2Dec 20, 2022
Laser apparatus, EUV light generating system, and electronic device manufacturing method
GIGAPHOTON INC0 citations50
US12512640B2Dec 30, 2025
Laser system, pulse laser light generating method, and electronic device manufacturing method
GIGAPHOTON INC0 citations48
US9647406B2May 9, 2017
Laser unit and extreme ultraviolet light generating system
GIGAPHOTON INC0 citations41
US10483713B2Nov 19, 2019
Laser apparatus and measurement unit
GIGAPHOTON INC0 citations40
US10165665B2Dec 25, 2018
Laser apparatus and extreme ultraviolet light generating apparatus
GIGAPHOTON INC0 citations40
ANDO ELECTRIC
6 patentsUS5633750AMay 27, 1997
Optical fiber amplifier
ANDO ELECTRIC75 citations95
US5548402AAug 20, 1996
Optical sweep signal generator
ANDO ELECTRIC28 citations91
US5574534ANov 12, 1996
Apparatus for determining noise factor of optical amplifier
ANDO ELECTRIC13 citations73
US6122087ASep 19, 2000
Optical-frequency-stabilized light source
ANDO ELECTRIC14 citations72
US6323976B1Nov 27, 2001
Light source device for frequency division multiplexed optical communications
ANDO ELECTRIC4 citations61
US6091526AJul 18, 2000
Light source device for frequency division multiplexed optical communications
ANDO ELECTRIC3 citations61