Tomoyuki Akiyama

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical transmitter that transmits multi-level optical signal
- Patent number 12,126,386
- Issue date Oct 22, 2024
- Fujitsu Limited
- Shinsuke Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication element and optical neural network
- Patent number 12,056,603
- Issue date Aug 6, 2024
- Fujitsu Limited
- Tomoyuki Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical demultiplexer and communication device
- Patent number 12,052,052
- Issue date Jul 30, 2024
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical AD converter and optical receiver
- Patent number 11,868,026
- Issue date Jan 9, 2024
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical demultiplexing device and transmission device
- Patent number 11,791,906
- Issue date Oct 17, 2023
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmitter for transmitting multilevel optical signals
- Patent number 11,736,201
- Issue date Aug 22, 2023
- Fujitsu Limited
- Shinsuke Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical element and optical transmitter
- Patent number 11,630,264
- Issue date Apr 18, 2023
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical modulator, optical transmitter, and optical communication a...
- Patent number 11,563,497
- Issue date Jan 24, 2023
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication component, optical transmitter, and control m...
- Patent number 11,343,009
- Issue date May 24, 2022
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modulated light source
- Patent number 11,128,103
- Issue date Sep 21, 2021
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical demultiplexer, optical transport apparatus, and method of c...
- Patent number 11,119,278
- Issue date Sep 14, 2021
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical add-drop device
- Patent number 11,121,796
- Issue date Sep 14, 2021
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus and optical element
- Patent number 10,911,148
- Issue date Feb 2, 2021
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical element
- Patent number 10,547,406
- Issue date Jan 28, 2020
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical fiber mounted photonic integrated circuit device
- Patent number 10,488,596
- Issue date Nov 26, 2019
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical transport apparatus, optical demultiplexer, and method of c...
- Patent number 10,491,321
- Issue date Nov 26, 2019
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical device and optical apparatus
- Patent number 10,439,729
- Issue date Oct 8, 2019
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Modulated light source
- Patent number 10,389,083
- Issue date Aug 20, 2019
- Fujitsu Limited
- Tomoyuki Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical fiber mounted photonic integrated circuit device for single...
- Patent number 9,897,761
- Issue date Feb 20, 2018
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Modulated light source
- Patent number 9,537,289
- Issue date Jan 3, 2017
- Fujitsu Limited
- Tomoyuki Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical semiconductor element, method of controlling the same and m...
- Patent number 9,513,531
- Issue date Dec 6, 2016
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical semiconductor element, method of controlling the same and m...
- Patent number 9,513,530
- Issue date Dec 6, 2016
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Modulated light source
- Patent number 9,436,022
- Issue date Sep 6, 2016
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical semiconductor device and optical semiconductor device contr...
- Patent number 9,261,716
- Issue date Feb 16, 2016
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical semiconductor element having ring modulators
- Patent number 9,239,475
- Issue date Jan 19, 2016
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical semiconductor device
- Patent number 9,229,249
- Issue date Jan 5, 2016
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical semiconductor device
- Patent number 9,219,347
- Issue date Dec 22, 2015
- Fujitsu Limited
- Tomoyuki Akiyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical switch, optical demodulator, and optical demodulation metho...
- Patent number 9,184,865
- Issue date Nov 10, 2015
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control method of optical element
- Patent number 9,182,647
- Issue date Nov 10, 2015
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Grant
Optical semiconductor device
- Patent number 9,002,147
- Issue date Apr 7, 2015
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL TRANSMITTER, OPTICAL TRANSCEIVER USING OPTICAL TRANSMITTER,...
- Publication number 20250047390
- Publication date Feb 6, 2025
- Fujitsu Limited
- Jun MATSUI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE
- Publication number 20250007612
- Publication date Jan 2, 2025
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSCEIVER, OPTICAL TRANSCEIVER DEVICE USING THE SAME, AND...
- Publication number 20240094470
- Publication date Mar 21, 2024
- Fujitsu Limited
- Jun MATSUI
- G02 - OPTICS
Information Patent Application
OPTICAL RECEPTION DEVICE AND OPTICAL TRANSMISSION AND RECEPTION DEVICE
- Publication number 20230208525
- Publication date Jun 29, 2023
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMITTER THAT TRANSMITS MULTI-LEVEL OPTICAL SIGNAL
- Publication number 20230188219
- Publication date Jun 15, 2023
- Fujitsu Limited
- Shinsuke Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL AD CONVERTER AND OPTICAL RECEIVER
- Publication number 20230136573
- Publication date May 4, 2023
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
OPTICAL DEMULTIPLEXING DEVICE AND TRANSMISSION DEVICE
- Publication number 20230064847
- Publication date Mar 2, 2023
- FUJITSU LIMITED
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMITTER FOR TRANSMITTING MULTILEVEL OPTICAL SIGNALS
- Publication number 20230019673
- Publication date Jan 19, 2023
- Fujitsu Limited
- Shinsuke Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL DEMULTIPLEXER AND COMMUNICATION DEVICE
- Publication number 20220416886
- Publication date Dec 29, 2022
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMITTER AND TRANSMISSION DEVICE
- Publication number 20220311534
- Publication date Sep 29, 2022
- Fujitsu Limited
- Yohei SOBU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL MODULATOR, OPTICAL TRANSMITTER, AND OPTICAL COMMUNICATION A...
- Publication number 20220278753
- Publication date Sep 1, 2022
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ELEMENT AND OPTICAL TRANSMITTER
- Publication number 20220146755
- Publication date May 12, 2022
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION COMPONENT, OPTICAL TRANSMITTER, AND CONTROL M...
- Publication number 20210306087
- Publication date Sep 30, 2021
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION ELEMENT AND OPTICAL NEURAL NETWORK
- Publication number 20210248454
- Publication date Aug 12, 2021
- Fujitsu Limited
- Tomoyuki Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
OPTICAL ADD-DROP DEVICE
- Publication number 20200389247
- Publication date Dec 10, 2020
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL DEMULTIPLEXER, OPTICAL TRANSPORT APPARATUS, AND METHOD OF C...
- Publication number 20200379181
- Publication date Dec 3, 2020
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
OPTICAL TRANSMISSION APPARATUS AND OPTICAL ELEMENT
- Publication number 20200136729
- Publication date Apr 30, 2020
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSPORT APPARATUS, OPTICAL DEMULTIPLEXER, AND METHOD OF C...
- Publication number 20190245642
- Publication date Aug 8, 2019
- Fujitsu Limited
- Tomoyuki Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL DEVICE AND OPTICAL APPARATUS
- Publication number 20190097732
- Publication date Mar 28, 2019
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
MODULATED LIGHT SOURCE
- Publication number 20190097383
- Publication date Mar 28, 2019
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER MOUNTED PHOTONIC INTEGRATED CIRCUIT DEVICE
- Publication number 20180067265
- Publication date Mar 8, 2018
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
OPTICAL ELEMENT
- Publication number 20180013512
- Publication date Jan 11, 2018
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER MOUNTED PHOTONIC INTEGRATED CIRCUIT DEVICE
- Publication number 20170276879
- Publication date Sep 28, 2017
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
MODULATED LIGHT SOURCE
- Publication number 20170005454
- Publication date Jan 5, 2017
- Fujitsu Limited
- Tomoyuki Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL SEMICONDUCTOR ELEMENT, METHOD OF CONTROLLING THE SAME AND M...
- Publication number 20160370607
- Publication date Dec 22, 2016
- Fujitsu Limited
- Tomoyuki AKIYAMA
- G02 - OPTICS
Information Patent Application
MODULATED LIGHT SOURCE
- Publication number 20160218481
- Publication date Jul 28, 2016
- FUJITSU LIMITED
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
MODULATED LIGHT SOURCE
- Publication number 20150355482
- Publication date Dec 10, 2015
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
CONTROL METHOD OF OPTICAL ELEMENT
- Publication number 20150261061
- Publication date Sep 17, 2015
- Fujitsu Limited
- Tomoyuki Akiyama
- G02 - OPTICS
Information Patent Application
OPTICAL SEMICONDUCTOR DEVICE
- Publication number 20150016767
- Publication date Jan 15, 2015
- Fujitsu Limited
- Tomoyuki AKIYAMA
- G02 - OPTICS
Information Patent Application
OPTICAL SEMICONDUCTOR DEVICE AND OPTICAL SEMICONDUCTOR DEVICE CONTR...
- Publication number 20140376851
- Publication date Dec 25, 2014
- Tomoyuki Akiyama
- G02 - OPTICS

Tomoyuki Akiyama

Person

Patents Grantslast 30 patents

Optical transmitter that transmits multi-level optical signal

Optical communication element and optical neural network

Optical demultiplexer and communication device

Optical AD converter and optical receiver

Optical demultiplexing device and transmission device

Optical transmitter for transmitting multilevel optical signals

Optical element and optical transmitter

Optical modulator, optical transmitter, and optical communication a...

Optical communication component, optical transmitter, and control m...

Modulated light source

Optical demultiplexer, optical transport apparatus, and method of c...

Optical add-drop device

Optical transmission apparatus and optical element

Optical element

Optical fiber mounted photonic integrated circuit device

Optical transport apparatus, optical demultiplexer, and method of c...

Optical device and optical apparatus

Modulated light source

Optical fiber mounted photonic integrated circuit device for single...

Modulated light source

Optical semiconductor element, method of controlling the same and m...

Optical semiconductor element, method of controlling the same and m...

Modulated light source

Optical semiconductor device and optical semiconductor device contr...

Optical semiconductor element having ring modulators

Optical semiconductor device

Optical semiconductor device

Optical switch, optical demodulator, and optical demodulation metho...

Control method of optical element

Optical semiconductor device

Patents Applicationslast 30 patents

OPTICAL TRANSMITTER, OPTICAL TRANSCEIVER USING OPTICAL TRANSMITTER,...

OPTICAL TRANSMISSION DEVICE

OPTICAL TRANSCEIVER, OPTICAL TRANSCEIVER DEVICE USING THE SAME, AND...

OPTICAL RECEPTION DEVICE AND OPTICAL TRANSMISSION AND RECEPTION DEVICE

OPTICAL TRANSMITTER THAT TRANSMITS MULTI-LEVEL OPTICAL SIGNAL

OPTICAL AD CONVERTER AND OPTICAL RECEIVER

OPTICAL DEMULTIPLEXING DEVICE AND TRANSMISSION DEVICE

OPTICAL TRANSMITTER FOR TRANSMITTING MULTILEVEL OPTICAL SIGNALS

OPTICAL DEMULTIPLEXER AND COMMUNICATION DEVICE

OPTICAL TRANSMITTER AND TRANSMISSION DEVICE

OPTICAL MODULATOR, OPTICAL TRANSMITTER, AND OPTICAL COMMUNICATION A...

OPTICAL ELEMENT AND OPTICAL TRANSMITTER

OPTICAL COMMUNICATION COMPONENT, OPTICAL TRANSMITTER, AND CONTROL M...

OPTICAL COMMUNICATION ELEMENT AND OPTICAL NEURAL NETWORK

OPTICAL ADD-DROP DEVICE

OPTICAL DEMULTIPLEXER, OPTICAL TRANSPORT APPARATUS, AND METHOD OF C...

OPTICAL TRANSMISSION APPARATUS AND OPTICAL ELEMENT

OPTICAL TRANSPORT APPARATUS, OPTICAL DEMULTIPLEXER, AND METHOD OF C...

OPTICAL DEVICE AND OPTICAL APPARATUS

MODULATED LIGHT SOURCE

OPTICAL FIBER MOUNTED PHOTONIC INTEGRATED CIRCUIT DEVICE

OPTICAL ELEMENT

OPTICAL FIBER MOUNTED PHOTONIC INTEGRATED CIRCUIT DEVICE

MODULATED LIGHT SOURCE

OPTICAL SEMICONDUCTOR ELEMENT, METHOD OF CONTROLLING THE SAME AND M...

MODULATED LIGHT SOURCE

MODULATED LIGHT SOURCE

CONTROL METHOD OF OPTICAL ELEMENT

OPTICAL SEMICONDUCTOR DEVICE

OPTICAL SEMICONDUCTOR DEVICE AND OPTICAL SEMICONDUCTOR DEVICE CONTR...