P

Inventor

KATO TOMOYUKI

JP72 patents
⚠️ This page may combine multiple inventors who share the name “KATO TOMOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJITSU LTD

20 patents
US10948802B2Mar 16, 2021

Wavelength converter apparatus and method of performing wavelength conversion

FUJITSU LTD10 citations86
US11163119B2Nov 2, 2021

Wavelength conversion device and method of performing wavelength conversion

FUJITSU LTD2 citations73
US10193621B2Jan 29, 2019

Location measurement apparatus, light modulation converter, and light variation location measurement method

FUJITSU LTD2 citations73
US9857662B2Jan 2, 2018

Optical frequency shift device and method

FUJITSU LTD6 citations73
US9746699B2Aug 29, 2017

Optical frequency shifter, single sideband modulator, and light insertion and branch apparatus

FUJITSU LTD2 citations73
US11588572B2Feb 21, 2023

Wavelength converter and optical transmission device that includes wavelength converter

FUJITSU LTD0 citations63
US11190292B2Nov 30, 2021

Wavelength converter and optical transmission device that includes wavelength converter

FUJITSU LTD0 citations63
US10429721B2Oct 1, 2019

Wavelength conversion device, control-light generation device, wavelength conversion method, and control-light generation method

FUJITSU LTD1 citations63
US10281798B2May 7, 2019

Wavelength conversion device, control-light generation device, wavelength conversion method, and control-light generation method

FUJITSU LTD1 citations63
US11668870B2Jun 6, 2023

Optical communication device, optical transmission system, wavelength converter, and optical communication method

FUJITSU LTD1 citations62
US11460752B2Oct 4, 2022

Wavelength conversion device and wavelength conversion method

FUJITSU LTD1 citations62
US11789204B2Oct 17, 2023

Wavelength converter, optical transmission system and wavelength conversion method

FUJITSU LTD0 citations52
US11533548B2Dec 20, 2022

Transmission device, transmission method, and transmission system

FUJITSU LTD0 citations52
US11387912B2Jul 12, 2022

Wavelength converter and fiber optic transmission system

FUJITSU LTD0 citations52
US11368239B2Jun 21, 2022

Wavelength conversion device and wavelength conversion method

FUJITSU LTD0 citations52
US10972188B2Apr 6, 2021

Transmission apparatus and transmission method

FUJITSU LTD0 citations52
US10955727B2Mar 23, 2021

Wavelength converter and transmission apparatus

FUJITSU LTD0 citations52
US9929828B2Mar 27, 2018

Optical add/drop multiplexer and method for adding/dropping optical signal

FUJITSU LTD1 citations52
US9634787B2Apr 25, 2017

Optical add-drop multiplexer

FUJITSU LTD1 citations52
US9148228B2Sep 29, 2015

Optical signal transmitting device, optical signal transmitting method, frequency fluctuation suppressing device and frequency fluctuation suppressing system

FUJITSU LTD1 citations52

HITACHI LTD

5 patents

HONDA MOTOR CO LTD

4 patents

TOYOTA MOTOR CO LTD

4 patents

KATO TOMOYUKI

3 patents

AISIN CORP

3 patents

TOSHIBA TEC KK

3 patents

TOKYO ELECTRIC CO LTD

2 patents

ALOKA CO LTD

1 patent

FURUKAWA ELECTRIC CO LTD

1 patent

DENSO CORP

1 patent

FUJITSU TEN LTD

1 patent

TOSHIBA KK

1 patent

DENSO TEN LTD

1 patent

Showing the top 50 of 72 patents by PatentIndex Score.