Kenichiro Ohtsuka

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

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
Optical connector
- Patent number 10,539,745
- Issue date Jan 21, 2020
- Sei Optifrontier Co., Ltd.
- Tsutomu Kamada
- G02 - OPTICS
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 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
Information Patent Grant
Optical fiber with connector
- Patent number 9,958,620
- Issue date May 1, 2018
- Sei Optifrontier Co., Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical fiber with connector
- Patent number 9,921,376
- Issue date Mar 20, 2018
- Sei Optifrontier Co., Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical fiber with connector
- Patent number 9,804,344
- Issue date Oct 31, 2017
- Sei Optifrontier Co., Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Stranded optical cable with connectors
- Patent number 9,176,295
- Issue date Nov 3, 2015
- Sumitomo Electric Industries, Ltd.
- Itaru Sakabe
- G02 - OPTICS
Information Patent Grant
Optical connector and method of assembling the same
- Patent number 8,511,910
- Issue date Aug 20, 2013
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical connector, method of attaching the optical connector to coa...
- Patent number 8,480,311
- Issue date Jul 9, 2013
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical cable gripping member
- Patent number 8,478,100
- Issue date Jul 2, 2013
- Sumitomo Electric Industries, Ltd.
- Yoshinobu Toda
- G02 - OPTICS
Information Patent Grant
Optical fiber connector and optical cable
- Patent number 8,434,948
- Issue date May 7, 2013
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical connector, and method of assembling optical connector
- Patent number 8,297,850
- Issue date Oct 30, 2012
- Sumitomo Electric Industries, Ltd.
- Daizo Nishioka
- G02 - OPTICS
Information Patent Grant
Optical connecting member and method of fitting the same
- Patent number 8,292,514
- Issue date Oct 23, 2012
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical cable connecting closure and optical interconnection system
- Patent number 8,254,741
- Issue date Aug 28, 2012
- Sumitomo Electric Industries, Ltd.
- Tsuyoshi Imaizumi
- G02 - OPTICS
Information Patent Grant
Optical fiber cutting apparatus and optical fiber cutting method
- Patent number 8,196,793
- Issue date Jun 12, 2012
- Sumitomo Electric Industries, Ltd.
- Masaki Ohmura
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Optical fiber branch cable, method of wiring the same, and method o...
- Patent number 7,927,025
- Issue date Apr 19, 2011
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical connector and method of attaching optical fiber cord to opt...
- Patent number 7,731,429
- Issue date Jun 8, 2010
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical connector and optical connector assembling method
- Patent number 7,717,623
- Issue date May 18, 2010
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical fiber connector, optical fiber connecting method, and conne...
- Patent number 7,534,051
- Issue date May 19, 2009
- Sumitomo Electric Industries, Ltd.
- Daizo Nishioka
- G02 - OPTICS
Information Patent Grant
Method of making optical connector ferrule, die for making optical...
- Patent number 7,512,307
- Issue date Mar 31, 2009
- Sumitomo Electric Industries, Ltd.
- Wataru Sakurai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and metal mold for manufacturing optical connector ferrule,...
- Patent number 7,410,303
- Issue date Aug 12, 2008
- Sumitomo Electric Industries, Ltd.
- Wataru Sakurai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Core connector for an optical communication connector
- Patent number D571301
- Issue date Jun 17, 2008
- Matsushita Electric Works, Ltd.
- Yoshiyuki Nakashima
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Optical connector
- Patent number 7,341,381
- Issue date Mar 11, 2008
- The Furukawa Electric Co., Ltd.
- Naoko Shimoji
- G02 - OPTICS
Information Patent Grant
Optical communication connector
- Patent number D556688
- Issue date Dec 4, 2007
- Matsushita Electric Works, Ltd.
- Yoshihiro Shogaki
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Optical module having a semiconductor optical device mounted on a b...
- Patent number 7,162,126
- Issue date Jan 9, 2007
- Sumitomo Electric Industries, Ltd.
- Toshio Takagi
- G02 - OPTICS
Information Patent Grant
Optical connector ferrule, optical connector and making method for...
- Patent number 7,052,187
- Issue date May 30, 2006
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Optical connector and backplane assembly
- Patent number 6,964,525
- Issue date Nov 15, 2005
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Grant
Ferrule for optical connector and making method thereof
- Patent number 6,676,300
- Issue date Jan 13, 2004
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS

Patents Applicationslast 30 patents

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 PLUG, RECEPTACLE FOR OPTICAL CONNECTOR, AND OPTIC...
- Publication number 20180031773
- Publication date Feb 1, 2018
- SEI Optifrontier Co., Ltd.
- Kenichiro OHTSUKA
- G02 - OPTICS
Information Patent Application
MULTI-CORE/SINGLE-CORE CONVERSION MODULE AND MULTI-CORE/SINGLE-CORE...
- Publication number 20170359091
- Publication date Dec 14, 2017
- SEI Optifrontier Co., Ltd.
- Junji FUKUI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
OPTICAL CONNECTOR, PIN KEEPER, PIN INSERTION JIG, EXPANSION MEMBER,...
- Publication number 20170315308
- Publication date Nov 2, 2017
- SEI Optifrontier Co., Ltd.
- Tsutomu KAMADA
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR
- Publication number 20170254961
- Publication date Sep 7, 2017
- SEI Optifrontier Co., Ltd.
- Tsutomu KAMADA
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER WITH CONNECTOR
- Publication number 20170160495
- Publication date Jun 8, 2017
- SEI Optifrontier Co., Ltd.
- Kenichiro OHTSUKA
- G02 - OPTICS
Information Patent Application
OPTICAL CABLE GRIPPING MEMBER
- Publication number 20120128312
- Publication date May 24, 2012
- Nippon Telegraph and Telephone Corporation
- Yoshinobu Toda
- G02 - OPTICS
Information Patent Application
STRANDED OPTICAL CABLE WITH CONNECTORS
- Publication number 20120106906
- Publication date May 3, 2012
- Sumitomo Electric Industries, Ltd.
- Itaru Sakabe
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR, AND ASSEMBLING METHOD OF OPTICAL CONNECTOR
- Publication number 20110116745
- Publication date May 19, 2011
- Sumitomo Electric Industries, Ltd.
- Daizo NISHIOKA
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR AND METHOD OF ASSEMBLING THE SAME
- Publication number 20100290740
- Publication date Nov 18, 2010
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTING MEMBER AND METHOD OF FITTING THE SAME
- Publication number 20100284654
- Publication date Nov 11, 2010
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR AND METHOD OF ASSEMBLING THE SAME
- Publication number 20100247039
- Publication date Sep 30, 2010
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR, METHOD OF ATTACHING THE OPTICAL CONNECTOR TO COA...
- Publication number 20100220960
- Publication date Sep 2, 2010
- Sumitomo Electric Industries, Ltd.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER CUTTING DEVICE, OPTICAL FIBER CUTTING METHOD, AND OPT...
- Publication number 20100187276
- Publication date Jul 29, 2010
- Masaki Ohmura
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER CONNECTOR AND OPTICAL CABLE
- Publication number 20100086258
- Publication date Apr 8, 2010
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
OPTICAL CABLE CONNECTING CLOSURE AND OPTICAL INTERCONNECTION SYSTEM
- Publication number 20100074578
- Publication date Mar 25, 2010
- Tsuyoshi Imaizumi
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER CUTTING APPARATUS AND OPTICAL FIBER CUTTING METHOD
- Publication number 20100044406
- Publication date Feb 25, 2010
- Masaki Ohmura
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Optical Fiber Branch Cable, Method of Wiring the Same, and Method o...
- Publication number 20090304339
- Publication date Dec 10, 2009
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR AND METHOD OF ATTACHING OPTICAL FIBER CORD TO OPT...
- Publication number 20090252460
- Publication date Oct 8, 2009
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER CUTTING METHOD, DEVICE USED IN SAME METHOD, AND CONN...
- Publication number 20090224019
- Publication date Sep 10, 2009
- SUMITOMO ELECTRIC INDUSTRIES , LTD.
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
Optical Connector, and Method of Assembling Optical Connector
- Publication number 20080107381
- Publication date May 8, 2008
- Daizo Nishioka
- G02 - OPTICS
Information Patent Application
Optical fiber connector, optical fiber connecting method, and, conn...
- Publication number 20080013891
- Publication date Jan 17, 2008
- Daizo Nishioka
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR
- Publication number 20070098329
- Publication date May 3, 2007
- The Furukawa Electric Co, Ltd.
- Naoko SHIMOJI
- G02 - OPTICS
Information Patent Application
Method of making optical connector ferrule, die for making optical...
- Publication number 20060263034
- Publication date Nov 23, 2006
- Sumitomo Electric Industries, Ltd.
- Wataru Sakurai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical connector and optical connector assembling method
- Publication number 20060257079
- Publication date Nov 16, 2006
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
Method and metal mold for manufacturing optical connector ferrule,...
- Publication number 20050123248
- Publication date Jun 9, 2005
- Sumitomo Electric Industries, Ltd.
- Wataru Sakurai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical module having a semiconductor optical device mounted on a b...
- Publication number 20050089279
- Publication date Apr 28, 2005
- Toshio Takagi
- G02 - OPTICS
Information Patent Application
Optical connector and backplane assembly
- Publication number 20040151439
- Publication date Aug 5, 2004
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
Optical connector ferrule, optical connector and making method for...
- Publication number 20030161584
- Publication date Aug 28, 2003
- Kenichiro Ohtsuka
- G02 - OPTICS
Information Patent Application
Ferrule for optical connector and making method thereof
- Publication number 20020154867
- Publication date Oct 24, 2002
- Kenichiro Ohtsuka
- G02 - OPTICS

Kenichiro Ohtsuka

Person

Patents Grantslast 30 patents

Optical connector

Optical connector

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

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

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

Optical fiber with connector

Optical fiber with connector

Optical fiber with connector

Stranded optical cable with connectors

Optical connector and method of assembling the same

Optical connector, method of attaching the optical connector to coa...

Optical cable gripping member

Optical fiber connector and optical cable

Optical connector, and method of assembling optical connector

Optical connecting member and method of fitting the same

Optical cable connecting closure and optical interconnection system

Optical fiber cutting apparatus and optical fiber cutting method

Optical fiber branch cable, method of wiring the same, and method o...

Optical connector and method of attaching optical fiber cord to opt...

Optical connector and optical connector assembling method

Optical fiber connector, optical fiber connecting method, and conne...

Method of making optical connector ferrule, die for making optical...

Method and metal mold for manufacturing optical connector ferrule,...

Core connector for an optical communication connector

Optical connector

Optical communication connector

Optical module having a semiconductor optical device mounted on a b...

Optical connector ferrule, optical connector and making method for...

Optical connector and backplane assembly

Ferrule for optical connector and making method thereof

Patents Applicationslast 30 patents

OPTICAL CONNECTOR

OPTICAL CONNECTOR PLUG, RECEPTACLE FOR OPTICAL CONNECTOR, AND OPTIC...

MULTI-CORE/SINGLE-CORE CONVERSION MODULE AND MULTI-CORE/SINGLE-CORE...

OPTICAL CONNECTOR, PIN KEEPER, PIN INSERTION JIG, EXPANSION MEMBER,...

OPTICAL CONNECTOR

OPTICAL FIBER WITH CONNECTOR

OPTICAL CABLE GRIPPING MEMBER

STRANDED OPTICAL CABLE WITH CONNECTORS

OPTICAL CONNECTOR, AND ASSEMBLING METHOD OF OPTICAL CONNECTOR

OPTICAL CONNECTOR AND METHOD OF ASSEMBLING THE SAME

OPTICAL CONNECTING MEMBER AND METHOD OF FITTING THE SAME

OPTICAL CONNECTOR AND METHOD OF ASSEMBLING THE SAME

OPTICAL CONNECTOR, METHOD OF ATTACHING THE OPTICAL CONNECTOR TO COA...

OPTICAL FIBER CUTTING DEVICE, OPTICAL FIBER CUTTING METHOD, AND OPT...

OPTICAL FIBER CONNECTOR AND OPTICAL CABLE

OPTICAL CABLE CONNECTING CLOSURE AND OPTICAL INTERCONNECTION SYSTEM

OPTICAL FIBER CUTTING APPARATUS AND OPTICAL FIBER CUTTING METHOD

Optical Fiber Branch Cable, Method of Wiring the Same, and Method o...

OPTICAL CONNECTOR AND METHOD OF ATTACHING OPTICAL FIBER CORD TO OPT...

OPTICAL FIBER CUTTING METHOD, DEVICE USED IN SAME METHOD, AND CONN...

Optical Connector, and Method of Assembling Optical Connector

Optical fiber connector, optical fiber connecting method, and, conn...

OPTICAL CONNECTOR

Method of making optical connector ferrule, die for making optical...

Optical connector and optical connector assembling method

Method and metal mold for manufacturing optical connector ferrule,...

Optical module having a semiconductor optical device mounted on a b...

Optical connector and backplane assembly

Optical connector ferrule, optical connector and making method for...

Ferrule for optical connector and making method thereof