Sei Optifrontier Co., Ltd.

Organization

Yokohama-shi, Kanagawa, JP

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Fusion connection device, wireless information terminal, fusion con...
- Patent number 11,768,328
- Issue date Sep 26, 2023
- SEI Optifrontier Co., Ltd.
- Takahiro Suzuki
- G02 - OPTICS
Information Patent Grant
Fusion connection device, wireless information terminal, fusion con...
- Patent number 11,454,761
- Issue date Sep 27, 2022
- SEI Optifrontier Co., Ltd.
- Takahiro Suzuki
- G02 - OPTICS
Information Patent Grant
Optical fiber holder
- Patent number 11,435,529
- Issue date Sep 6, 2022
- SEI Optifrontier Co., Ltd.
- Ryuichiro Sato
- G02 - OPTICS
Information Patent Grant
Fusion splicing device, theft sensing system of fusion splicing dev...
- Patent number 11,288,938
- Issue date Mar 29, 2022
- SEI Optifrontier Co., Ltd.
- Kazuyoshi Ooki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Theft sensing system for fusion splicer device and fusion splicer d...
- Patent number 11,257,335
- Issue date Feb 22, 2022
- SEI Optifrontier Co., Ltd.
- Kazuyoshi Ooki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical fiber holder and fusion-splicing apparatus including optica...
- Patent number 11,204,465
- Issue date Dec 21, 2021
- SEI Optifrontier Co., Ltd.
- Ryuichiro Sato
- G02 - OPTICS
Information Patent Grant
Reinforcing apparatus for optical fiber fusion-splicing part and fu...
- Patent number 11,181,692
- Issue date Nov 23, 2021
- SEI Optifrontier Co., Ltd.
- Ryosuke Meo
- G02 - OPTICS
Information Patent Grant
Optical connector
- Patent number 11,156,787
- Issue date Oct 26, 2021
- Sumitomo Electric Industries, Ltd.
- Yoshikyo Tamekuni
- G02 - OPTICS
Information Patent Grant
Termination unit
- Patent number 11,073,671
- Issue date Jul 27, 2021
- SEI Optifrontier Co., Ltd.
- Kazuya Masuda
- G02 - OPTICS
Information Patent Grant
Reinforcement device for the optical fiber fusion splicer
- Patent number D918016
- Issue date May 4, 2021
- SEI Optifrontier Co., Ltd.
- Kazufumi Joko
- D08 - Tools and hardware
Information Patent Grant
Theft tracking system and theft tracking method for optical fiber f...
- Patent number 10,989,875
- Issue date Apr 27, 2021
- SEI Optifrontier Co., Ltd.
- Kazuyoshi Ooki
- G02 - OPTICS
Information Patent Grant
Neck-hung fusion splicer operation tray having detachable flanking...
- Patent number 10,928,591
- Issue date Feb 23, 2021
- SEI Optifrontier Co., Ltd.
- Keitaro Koguchi
- G02 - OPTICS
Information Patent Grant
Optical fiber holder
- Patent number 10,921,527
- Issue date Feb 16, 2021
- SEI Optifrontier Co., Ltd.
- Ryuichiro Sato
- G02 - OPTICS
Information Patent Grant
Management system for fusion splicing device and management method...
- Patent number 10,901,723
- Issue date Jan 26, 2021
- SEI Optifrontier Co., Ltd.
- Kazuyoshi Ooki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Fiber optic cable rack
- Patent number 10,859,783
- Issue date Dec 8, 2020
- Sumitomo Electric Industries, Ltd.
- Takayasu Yamauchi
- G02 - OPTICS
Information Patent Grant
Theft sensing system for fusion splicer device and fusion splicer d...
- Patent number 10,825,309
- Issue date Nov 3, 2020
- SEI Optifrontier Co., Ltd.
- Kazuyoshi Ooki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical connector, detaching jig, and cap
- Patent number 10,677,996
- Issue date Jun 9, 2020
- Sei Optifrontier Co., Ltd.
- Yohei Aoshima
- G02 - OPTICS
Information Patent Grant
Optical connector
- Patent number 10,641,971
- Issue date May 5, 2020
- Sei Optifrontier Co., Ltd.
- Tsutomu Kamada
- G02 - OPTICS
Information Patent Grant
Termination unit and optical fiber exchange method using the same
- Patent number 10,591,693
- Issue date Mar 17, 2020
- Sumitomo Electric Industries, Ltd.
- Takayasu Yamauchi
- G02 - OPTICS
Information Patent Grant
Optical fiber holder and optical fiber cleaving apparatus to which...
- Patent number 10,551,564
- Issue date Feb 4, 2020
- Sei Optifrontier Co., Ltd.
- Shinsuke Kurino
- G02 - OPTICS
Information Patent Grant
Optical connector
- Patent number 10,539,745
- Issue date Jan 21, 2020
- Sei Optifrontier Co., Ltd.
- Tsutomu Kamada
- G02 - OPTICS
Information Patent Grant
Measurement system and measurement method
- Patent number 10,523,317
- Issue date Dec 31, 2019
- Sumitomo Electric Industries, Ltd.
- Kazuya Masuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber cutter
- Patent number 10,520,675
- Issue date Dec 31, 2019
- Sei Optifrontier Co., Ltd.
- Hiroshi Nakamura
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Optical fiber cutting apparatus
- Patent number 10,338,314
- Issue date Jul 2, 2019
- Sei Optifrontier Co., Ltd.
- Shinsuke Kurino
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Optical connector plug, receptacle for optical connector, and optic...
- Patent number 10,197,739
- Issue date Feb 5, 2019
- Sei Optifrontier Co., Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical fiber rack
- Patent number 10,175,443
- Issue date Jan 8, 2019
- Sei Optifrontier Co., Ltd.
- Kazuya Masuda
- G02 - OPTICS
Information Patent Grant
Optical fiber fusion splicer
- Patent number D837273
- Issue date Jan 1, 2019
- Sei Optifrontier Co., Ltd.
- Ryuichiro Sato
- D15 - Machines not elsewhere specified
Information Patent Grant
Optical-fiber fusion-splicing device
- Patent number 10,126,503
- Issue date Nov 13, 2018
- Sei Optifrontier Co., Ltd.
- Ryosuke Meo
- G02 - OPTICS
Information Patent Grant
Optical connector, pin keeper, pin insertion jig, expansion member,...
- Patent number 10,114,179
- Issue date Oct 30, 2018
- Sei Optifrontier Co., Ltd.
- Tsutomu Kamada
- G02 - OPTICS
Information Patent Grant
Multi-core/single-core conversion module and multi-core/single-core...
- Patent number 10,101,551
- Issue date Oct 16, 2018
- Sei Optifrontier Co., Ltd.
- Junji Fukui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
FUSION CONNECTION DEVICE, WIRELESS INFORMATION TERMINAL, FUSION CON...
- Publication number 20220381987
- Publication date Dec 1, 2022
- SEI Optifrontier Co., Ltd.
- Takahiro SUZUKI
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER HOLDER
- Publication number 20210157059
- Publication date May 27, 2021
- SEI Optifrontier Co., Ltd.
- Ryuichiro SATO
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR
- Publication number 20210116649
- Publication date Apr 22, 2021
- Sumitomo Electric Industries, Ltd.
- Yoshikyo TAMEKUNI
- G02 - OPTICS
Information Patent Application
TERMINATION UNIT
- Publication number 20210055497
- Publication date Feb 25, 2021
- SEI Optifrontier Co., Ltd.
- Kazuya MASUDA
- G02 - OPTICS
Information Patent Application
THEFT SENSING SYSTEM FOR FUSION SPLICER DEVICE AND FUSION SPLICER D...
- Publication number 20210012630
- Publication date Jan 14, 2021
- SEI Optifrontier Co., Ltd.
- Kazuyoshi OOKI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
FUSION SPLICING APPARATUS MANAGEMENT SYSTEM AND FUSION SPLICING APP...
- Publication number 20200371492
- Publication date Nov 26, 2020
- SEI Optifrontier Co., Ltd.
- Takaharu OHNISHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
FUSION CONNECTION DEVICE, WIRELESS INFORMATION TERMINAL, FUSION CON...
- Publication number 20200341197
- Publication date Oct 29, 2020
- SEI Optifrontier Co., Ltd.
- Takahiro SUZUKI
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER HOLDER AND FUSION-SPLICING APPARATUS INCLUDING OPTICA...
- Publication number 20200292755
- Publication date Sep 17, 2020
- SEI Optifrontier Co., Ltd.
- Ryuichiro SATO
- G02 - OPTICS
Information Patent Application
THEFT TRACKING SYSTEM AND THEFT TRACKING METHOD FOR OPTICAL FIBER F...
- Publication number 20200278497
- Publication date Sep 3, 2020
- SEI Optifrontier Co., Ltd.
- Kazuyoshi OOKI
- G02 - OPTICS
Information Patent Application
BASE COMPONENT, FAN-OUT CORD, AND METHOD OF MANUFACTURING FAN-OUT CORD
- Publication number 20200192048
- Publication date Jun 18, 2020
- SEI Optifrontier Co., Ltd.
- Yohei AOSHIMA
- G02 - OPTICS
Information Patent Application
FUSION SPLICING DEVICE, THEFT SENSING SYSTEM OF FUSION SPLICING DEV...
- Publication number 20200134997
- Publication date Apr 30, 2020
- SEI Optifrontier Co., Ltd.
- Kazuyoshi OOKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
THEFT SENSING SYSTEM FOR FUSION SPLICER DEVICE AND FUSION SPLICER D...
- Publication number 20200134994
- Publication date Apr 30, 2020
- SEI Optifrontier Co., Ltd.
- Kazuyoshi OOKI
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR AND OPTICAL FIBER WITH CONNECTOR
- Publication number 20190391343
- Publication date Dec 26, 2019
- SEI Optifrontier Co., Ltd.
- Yohei AOSHIMA
- G02 - OPTICS
Information Patent Application
MEASUREMENT SYSTEM AND MEASUREMENT METHOD
- Publication number 20190372665
- Publication date Dec 5, 2019
- Sumitomo Electric Industries, Ltd.
- Kazuya MASUDA
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL CONNECTOR AND OPTICAL FIBER WITH CONNECTOR
- Publication number 20190361177
- Publication date Nov 28, 2019
- SEI Optifrontier Co., Ltd.
- Yohei AOSHIMA
- G02 - OPTICS
Information Patent Application
FIBER OPTIC CABLE RACK
- Publication number 20190346645
- Publication date Nov 14, 2019
- Sumitomo Electric Industries, Ltd.
- Takayasu YAMAUCHI
- G02 - OPTICS
Information Patent Application
MANAGEMENT SYSTEM FOR FUSION SPLICING DEVICE AND MANAGEMENT METHOD...
- Publication number 20190310838
- Publication date Oct 10, 2019
- SEI Optifrontier Co., Ltd.
- Kazuyoshi OOKI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
OPTICAL WIRING RACK
- Publication number 20190293889
- Publication date Sep 26, 2019
- SEI Optifrontier Co., Ltd.
- Kazuya MASUDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL CONNECTOR, DETACHING JIG, AND CAP
- Publication number 20190278029
- Publication date Sep 12, 2019
- SEI Optifrontier Co., Ltd.
- Yohei AOSHIMA
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER HOLDER
- Publication number 20190235173
- Publication date Aug 1, 2019
- SEI Optifrontier Co., Ltd.
- Ryuichiro SATO
- G02 - OPTICS
Information Patent Application
REINFORCING APPARATUS FOR OPTICAL FIBER FUSION-SPLICING PART AND FU...
- Publication number 20190196105
- Publication date Jun 27, 2019
- SEI Optifrontier Co., Ltd.
- Ryosuke MEO
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR FERRULE AND OPTICAL CONNECTOR
- Publication number 20190196117
- Publication date Jun 27, 2019
- Sumitomo Electric Industries, Ltd.
- Masaki OHMURA
- G02 - OPTICS
Information Patent Application
NECK-HUNG OPERATION TRAY FOR FUSION SPLICER
- Publication number 20190187379
- Publication date Jun 20, 2019
- SEI Optifrontier Co., Ltd.
- Keitaro KOGUCHI
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR FERRULE AND OPTICAL CONNECTOR
- Publication number 20190179087
- Publication date Jun 13, 2019
- Sumitomo Electric Industries, Ltd.
- Masaki OHMURA
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR
- Publication number 20190079250
- Publication date Mar 14, 2019
- SEI Optifrontier Co., Ltd.
- Tsutomu KAMADA
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR AND ADAPTERS
- Publication number 20190079249
- Publication date Mar 14, 2019
- Sumitomo Electric Industries, Ltd.
- Yoshikyo TAMEKUNI
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER CUTTER
- Publication number 20190064440
- Publication date Feb 28, 2019
- SEI Optifrontier Co., Ltd.
- Tsuyoshi TADA
- G02 - OPTICS
Information Patent Application
TERMINATION UNIT AND OPTICAL FIBER EXCHANGE METHOD USING THE SAME
- Publication number 20190064468
- Publication date Feb 28, 2019
- Sumitomo Electric Industries, Ltd.
- Takayasu YAMAUCHI
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER CUTTER
- Publication number 20190049667
- Publication date Feb 14, 2019
- SEI Optifrontier Co., Ltd.
- Hiroshi NAKAMURA
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR
- Publication number 20180348444
- Publication date Dec 6, 2018
- Sumitomo Electric Industries, Ltd.
- Yoshikyo Tamekuni
- G02 - OPTICS

Sei Optifrontier Co., Ltd.

Organization

Patents Grantslast 30 patents

Fusion connection device, wireless information terminal, fusion con...

Fusion connection device, wireless information terminal, fusion con...

Optical fiber holder

Fusion splicing device, theft sensing system of fusion splicing dev...

Theft sensing system for fusion splicer device and fusion splicer d...

Optical fiber holder and fusion-splicing apparatus including optica...

Reinforcing apparatus for optical fiber fusion-splicing part and fu...

Optical connector

Termination unit

Reinforcement device for the optical fiber fusion splicer

Theft tracking system and theft tracking method for optical fiber f...

Neck-hung fusion splicer operation tray having detachable flanking...

Optical fiber holder

Management system for fusion splicing device and management method...

Fiber optic cable rack

Theft sensing system for fusion splicer device and fusion splicer d...

Optical connector, detaching jig, and cap

Optical connector

Termination unit and optical fiber exchange method using the same

Optical fiber holder and optical fiber cleaving apparatus to which...

Optical connector

Measurement system and measurement method

Optical fiber cutter

Optical fiber cutting apparatus

Optical connector plug, receptacle for optical connector, and optic...

Optical fiber rack

Optical fiber fusion splicer

Optical-fiber fusion-splicing device

Optical connector, pin keeper, pin insertion jig, expansion member,...

Multi-core/single-core conversion module and multi-core/single-core...

Patents Applicationslast 30 patents

FUSION CONNECTION DEVICE, WIRELESS INFORMATION TERMINAL, FUSION CON...

OPTICAL FIBER HOLDER

OPTICAL CONNECTOR

TERMINATION UNIT

THEFT SENSING SYSTEM FOR FUSION SPLICER DEVICE AND FUSION SPLICER D...

FUSION SPLICING APPARATUS MANAGEMENT SYSTEM AND FUSION SPLICING APP...

FUSION CONNECTION DEVICE, WIRELESS INFORMATION TERMINAL, FUSION CON...

OPTICAL FIBER HOLDER AND FUSION-SPLICING APPARATUS INCLUDING OPTICA...

THEFT TRACKING SYSTEM AND THEFT TRACKING METHOD FOR OPTICAL FIBER F...

BASE COMPONENT, FAN-OUT CORD, AND METHOD OF MANUFACTURING FAN-OUT CORD

FUSION SPLICING DEVICE, THEFT SENSING SYSTEM OF FUSION SPLICING DEV...

THEFT SENSING SYSTEM FOR FUSION SPLICER DEVICE AND FUSION SPLICER D...

OPTICAL CONNECTOR AND OPTICAL FIBER WITH CONNECTOR

MEASUREMENT SYSTEM AND MEASUREMENT METHOD

OPTICAL CONNECTOR AND OPTICAL FIBER WITH CONNECTOR

FIBER OPTIC CABLE RACK

MANAGEMENT SYSTEM FOR FUSION SPLICING DEVICE AND MANAGEMENT METHOD...

OPTICAL WIRING RACK

OPTICAL CONNECTOR, DETACHING JIG, AND CAP

OPTICAL FIBER HOLDER

REINFORCING APPARATUS FOR OPTICAL FIBER FUSION-SPLICING PART AND FU...

OPTICAL CONNECTOR FERRULE AND OPTICAL CONNECTOR

NECK-HUNG OPERATION TRAY FOR FUSION SPLICER

OPTICAL CONNECTOR FERRULE AND OPTICAL CONNECTOR

OPTICAL CONNECTOR

OPTICAL CONNECTOR AND ADAPTERS

OPTICAL FIBER CUTTER

TERMINATION UNIT AND OPTICAL FIBER EXCHANGE METHOD USING THE SAME

OPTICAL FIBER CUTTER

OPTICAL CONNECTOR

Trademarklast 30 trademarks