Kohei Choraku

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Specific conductivity measurement method, recording medium recordin...
- Patent number 11,435,385
- Issue date Sep 6, 2022
- Fujitsu Limited
- Kazuki Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Electronic component and substrate
- Patent number 11,158,964
- Issue date Oct 26, 2021
- Fujitsu Limited
- Takahide Mukoyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical waveguide substrate, method of manufacturing optical wavegu...
- Patent number 10,877,216
- Issue date Dec 29, 2020
- Fujitsu Limited
- Kohei Choraku
- G02 - OPTICS
Information Patent Grant
Electronic component and substrate
- Patent number 10,714,849
- Issue date Jul 14, 2020
- Fujitsu Limited
- Takahide Mukoyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wiring board manufacturing method
- Patent number 10,492,291
- Issue date Nov 26, 2019
- Fujitsu Limited
- Yoshiyuki Hiroshima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Light emitting element bonded board and method of manufacturing lig...
- Patent number 10,353,158
- Issue date Jul 16, 2019
- Fujitsu Limited
- Yoshiyuki Hiroshima
- G02 - OPTICS
Information Patent Grant
Printed circuit board and electric device
- Patent number 10,212,805
- Issue date Feb 19, 2019
- Fujitsu Limited
- Tetsuro Yamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wiring board, electronic apparatus, and manufacturing method of wir...
- Patent number 10,164,312
- Issue date Dec 25, 2018
- Fujitsu Limited
- Tetsuro Yamada
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical interconnection substrate including optical transmitter wit...
- Patent number 10,151,878
- Issue date Dec 11, 2018
- Fujitsu Limited
- Kohei Choraku
- G02 - OPTICS
Information Patent Grant
Circuit board and method of manufacturing the same
- Patent number 9,992,878
- Issue date Jun 5, 2018
- Fujitsu Limited
- Mitsuhiko Sugane
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Printed circuit board, electronic device, and manufacturing method
- Patent number 9,763,331
- Issue date Sep 12, 2017
- Fujitsu Limited
- Yoshiyuki Hiroshima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical axis adjustment method for optical interconnection, and opt...
- Patent number 9,715,062
- Issue date Jul 25, 2017
- Fujitsu Limited
- Kohei Choraku
- G02 - OPTICS
Information Patent Grant
Placement apparatus and a suction nozzle for an optical component
- Patent number 9,572,293
- Issue date Feb 14, 2017
- Fujitsu Limited
- Yoshiyuki Hiroshima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of manufacturing photoelectric composite substrate
- Patent number 9,470,856
- Issue date Oct 18, 2016
- Fujitsu Limited
- Tetsuro Yamada
- G02 - OPTICS
Information Patent Grant
Portable electronic apparatus
- Patent number 9,398,709
- Issue date Jul 19, 2016
- Fujitsu Limited
- Takao Shinoda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical waveguide substrate and information processing device
- Patent number 9,374,163
- Issue date Jun 21, 2016
- Fujitsu Limited
- Daisuke Usui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic device and optical connector
- Patent number 9,360,639
- Issue date Jun 7, 2016
- Fujitsu Limited
- Kohei Choraku
- G02 - OPTICS
Information Patent Grant
Method and device for manufacturing optical transmission device, an...
- Patent number 9,285,560
- Issue date Mar 15, 2016
- Fujitsu Limited
- Kohei Choraku
- G02 - OPTICS
Information Patent Grant
Housing, double-sided adhesive tape, and electronic apparatus
- Patent number 9,213,370
- Issue date Dec 15, 2015
- Fujitsu Limited
- Shingo Yamaguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical coupling structure and optical transmission apparatus
- Patent number 9,188,743
- Issue date Nov 17, 2015
- Fujitsu Limitd
- Kohei Choraku
- G02 - OPTICS
Information Patent Grant
Water-resistant cover and electronic device
- Patent number 8,891,237
- Issue date Nov 18, 2014
- Fujitsu Limited
- Takao Shinoda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light emitting member mounting method and apparatus
- Patent number 8,777,091
- Issue date Jul 15, 2014
- Fujitsu Limited
- Yoshiyuki Hiroshima
- G02 - OPTICS
Information Patent Grant
Seal structure, electronic device, portable device, and seal method
- Patent number 8,642,886
- Issue date Feb 4, 2014
- Fujitsu Limited
- Shingo Yamaguchi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Waterproof enclosure and electronic apparatus
- Patent number 8,269,104
- Issue date Sep 18, 2012
- Fujitsu Limited
- Kohei Choraku
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SPECIFIC CONDUCTIVITY MEASUREMENT METHOD, RECORDING MEDIUM RECORDIN...
- Publication number 20200341042
- Publication date Oct 29, 2020
- Fujitsu Limited
- Kazuki TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
ELECTRONIC COMPONENT AND SUBSTRATE
- Publication number 20200303849
- Publication date Sep 24, 2020
- Fujitsu Limited
- Takahide Mukoyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL WAVEGUIDE SUBSTRATE, METHOD OF MANUFACTURING OPTICAL WAVEGU...
- Publication number 20190324207
- Publication date Oct 24, 2019
- Fujitsu Limited
- Kohei Choraku
- G02 - OPTICS
Information Patent Application
ELECTRONIC COMPONENT AND SUBSTRATE
- Publication number 20190245284
- Publication date Aug 8, 2019
- Fujitsu Limited
- Takahide Mukoyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PRINTED CIRCUIT BOARD AND ELECTRIC DEVICE
- Publication number 20180184514
- Publication date Jun 28, 2018
- Fujitsu Limited
- Tetsuro Yamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT EMITTING ELEMENT BONDED BOARD AND METHOD OF MANUFACTURING LIG...
- Publication number 20180156993
- Publication date Jun 7, 2018
- Fujitsu Limited
- YOSHIYUKI HIROSHIMA
- G02 - OPTICS
Information Patent Application
OPTICAL INTERCONNECTION SUBSTRATE
- Publication number 20170293095
- Publication date Oct 12, 2017
- Fujitsu Limited
- Kohei Choraku
- G02 - OPTICS
Information Patent Application
WIRING BOARD MANUFACTURING METHOD
- Publication number 20170290144
- Publication date Oct 5, 2017
- Fujitsu Limited
- YOSHIYUKI HIROSHIMA
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
WIRING BOARD, ELECTRONIC APPARATUS, AND MANUFACTURING METHOD OF WIR...
- Publication number 20170055343
- Publication date Feb 23, 2017
- Fujitsu Limited
- Tetsuro Yamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PRINTED CIRCUIT BOARD, ELECTRONIC DEVICE, AND MANUFACTURING METHOD
- Publication number 20160309593
- Publication date Oct 20, 2016
- Fujitsu Limited
- Yoshiyuki Hiroshima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
OPTICAL AXIS ADJUSTMENT METHOD FOR OPTICAL INTERCONNECTION, AND OPT...
- Publication number 20160202413
- Publication date Jul 14, 2016
- Fujitsu Limited
- Kohei Choraku
- G02 - OPTICS
Information Patent Application
CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME
- Publication number 20160192486
- Publication date Jun 30, 2016
- Fujitsu Limited
- Mitsuhiko Sugane
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
OPTICAL WAVEGUIDE SUBSTRATE AND INFORMATION PROCESSING DEVICE
- Publication number 20150063746
- Publication date Mar 5, 2015
- Fujitsu Limited
- Daisuke USUI
- G02 - OPTICS
Information Patent Application
PLACEMENT APPARATUS FOR OPTICAL COMPONENT, SUCTION NOZZLE FOR OPTIC...
- Publication number 20140283380
- Publication date Sep 25, 2014
- Fujitsu Limited
- Yoshiyuki HIROSHIMA
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD AND DEVICE FOR MANUFACTURING OPTICAL TRANSMISSION DEVICE, AN...
- Publication number 20140270631
- Publication date Sep 18, 2014
- Fujitsu Limited
- Kohei CHORAKU
- G02 - OPTICS
Information Patent Application
ELECTRONIC DEVICE AND OPTICAL CONNECTOR
- Publication number 20140270656
- Publication date Sep 18, 2014
- Fujitsu Limited
- Kohei Choraku
- G02 - OPTICS
Information Patent Application
METHOD OF MANUFACTURING PHOTOELECTRIC COMPOSITE SUBSTRATE
- Publication number 20140170784
- Publication date Jun 19, 2014
- Fujitsu Limited
- Tetsuro YAMADA
- G02 - OPTICS
Information Patent Application
PORTABLE ELECTRONIC APPARATUS
- Publication number 20140140033
- Publication date May 22, 2014
- Fujitsu Limited
- TAKAO SHINODA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LIGHT EMITTING MEMBER MOUNTING METHOD AND APPARATUS
- Publication number 20130256387
- Publication date Oct 3, 2013
- Fujitsu Limited
- Yoshiyuki HIROSHIMA
- G02 - OPTICS
Information Patent Application
OPTICAL COUPLING STRUCTURE AND OPTICAL TRANSMISSION APPARATUS
- Publication number 20130243376
- Publication date Sep 19, 2013
- Kohei Choraku
- G02 - OPTICS
Information Patent Application
HOUSING, DOUBLE-SIDED ADHESIVE TAPE, AND ELECTRONIC APPARATUS
- Publication number 20130088818
- Publication date Apr 11, 2013
- Fujitsu Limited
- Shingo YAMAGUCHI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ELECTRONIC DEVICE
- Publication number 20120081875
- Publication date Apr 5, 2012
- FUJITSU LIMITED
- Shingo YAMAGUCHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
WATER-RESISTANT COVER AND ELECTRONIC DEVICE
- Publication number 20120055838
- Publication date Mar 8, 2012
- Fujitsu Limited
- Takao Shinoda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SEAL STRUCTURE, ELECTRONIC DEVICE, PORTABLE DEVICE, AND SEAL METHOD
- Publication number 20110209890
- Publication date Sep 1, 2011
- Fujitsu Limited
- Shingo Yamaguchi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
ELECTRONIC DEVICE, HOUSING, AND GASKET
- Publication number 20100302718
- Publication date Dec 2, 2010
- Fujitsu Limited
- Takao Shinoda
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
WATERPROOF ENCLOSURE AND ELECTRONIC APPARATUS
- Publication number 20100206601
- Publication date Aug 19, 2010
- Fujitsu Limited
- Kohei Choraku
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kohei Choraku

Person

Patents Grantslast 30 patents

Specific conductivity measurement method, recording medium recordin...

Electronic component and substrate

Optical waveguide substrate, method of manufacturing optical wavegu...

Electronic component and substrate

Wiring board manufacturing method

Light emitting element bonded board and method of manufacturing lig...

Printed circuit board and electric device

Wiring board, electronic apparatus, and manufacturing method of wir...

Optical interconnection substrate including optical transmitter wit...

Circuit board and method of manufacturing the same

Printed circuit board, electronic device, and manufacturing method

Optical axis adjustment method for optical interconnection, and opt...

Placement apparatus and a suction nozzle for an optical component

Method of manufacturing photoelectric composite substrate

Portable electronic apparatus

Optical waveguide substrate and information processing device

Electronic device and optical connector

Method and device for manufacturing optical transmission device, an...

Housing, double-sided adhesive tape, and electronic apparatus

Optical coupling structure and optical transmission apparatus

Water-resistant cover and electronic device

Light emitting member mounting method and apparatus

Seal structure, electronic device, portable device, and seal method

Waterproof enclosure and electronic apparatus

Patents Applicationslast 30 patents

SPECIFIC CONDUCTIVITY MEASUREMENT METHOD, RECORDING MEDIUM RECORDIN...

ELECTRONIC COMPONENT AND SUBSTRATE

OPTICAL WAVEGUIDE SUBSTRATE, METHOD OF MANUFACTURING OPTICAL WAVEGU...

ELECTRONIC COMPONENT AND SUBSTRATE

PRINTED CIRCUIT BOARD AND ELECTRIC DEVICE

LIGHT EMITTING ELEMENT BONDED BOARD AND METHOD OF MANUFACTURING LIG...

OPTICAL INTERCONNECTION SUBSTRATE

WIRING BOARD MANUFACTURING METHOD

WIRING BOARD, ELECTRONIC APPARATUS, AND MANUFACTURING METHOD OF WIR...

PRINTED CIRCUIT BOARD, ELECTRONIC DEVICE, AND MANUFACTURING METHOD

OPTICAL AXIS ADJUSTMENT METHOD FOR OPTICAL INTERCONNECTION, AND OPT...

CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME

OPTICAL WAVEGUIDE SUBSTRATE AND INFORMATION PROCESSING DEVICE

PLACEMENT APPARATUS FOR OPTICAL COMPONENT, SUCTION NOZZLE FOR OPTIC...

METHOD AND DEVICE FOR MANUFACTURING OPTICAL TRANSMISSION DEVICE, AN...

ELECTRONIC DEVICE AND OPTICAL CONNECTOR

METHOD OF MANUFACTURING PHOTOELECTRIC COMPOSITE SUBSTRATE

PORTABLE ELECTRONIC APPARATUS

LIGHT EMITTING MEMBER MOUNTING METHOD AND APPARATUS

OPTICAL COUPLING STRUCTURE AND OPTICAL TRANSMISSION APPARATUS

HOUSING, DOUBLE-SIDED ADHESIVE TAPE, AND ELECTRONIC APPARATUS

ELECTRONIC DEVICE

WATER-RESISTANT COVER AND ELECTRONIC DEVICE

SEAL STRUCTURE, ELECTRONIC DEVICE, PORTABLE DEVICE, AND SEAL METHOD

ELECTRONIC DEVICE, HOUSING, AND GASKET

WATERPROOF ENCLOSURE AND ELECTRONIC APPARATUS