P

Inventor

MICHISHITA YUKIO

JP14 patents
⚠️ This page may combine multiple inventors who share the name “MICHISHITA YUKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NEC CORP

11 patents
US6144487ANov 7, 2000

Optical amplifying apparatus capable of detecting at least one of optical individual signals

NEC CORP21 citations92
US6064514AMay 16, 2000

Optical surge preventing method and system for use with or in a rare earth doped fiber circuit

NEC CORP25 citations92
US7496296B2Feb 24, 2009

Optical transmission path monitoring system, monitoring apparatus therefor and monitoring method therefor

NEC CORP8 citations83
US5956166ASep 21, 1999

Wavelength division multiplexing optical transmission system and wavelength division multiplexing optical transmission method

NEC CORP18 citations83
US6496302B1Dec 17, 2002

Optical amplifier

NEC CORP13 citations73
US6271960B1Aug 7, 2001

Method and apparatus for wavelength conversion of signal light

NEC CORP10 citations73
US6151159ANov 21, 2000

Optical amplifier for wavelength multiplex transmission

NEC CORP7 citations73
US5754325AMay 19, 1998

Optical regenerating circuit

NEC CORP10 citations73
US6941075B2Sep 6, 2005

Wavelength division multiplexing optical transmission method and system

NEC CORP4 citations62
US6097534AAug 1, 2000

Optical amplifier system generating high optical output level

NEC CORP5 citations62
US6442309B1Aug 27, 2002

Optical amplifier

NEC CORP1 citations51

MITSUBISHI HEAVY IND LTD

2 patents
US6417487B2Jul 9, 2002

Laser beam machining head

MITSUBISHI HEAVY IND LTD56 citations92
US9739695B2Aug 22, 2017

Water jet peening compressive residual stress test method, test device, and test facility

MITSUBISHI HEAVY IND LTD8 citations83

MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD

1 patent
US10766120B2Sep 8, 2020

Method and device for manufacturing compressor scrolls, compressor scroll, and scroll compressor

MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD0 citations39