Haihua Yu

Person

Beijing, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Device authentication method, service access control method, device...
- Patent number 11,601,426
- Issue date Mar 7, 2023
- Ricoh Company, Ltd.
- Xiaojing Fan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Load balancing system with an access controller in the field of com...
- Patent number 10,674,402
- Issue date Jun 2, 2020
- Ricoh Company, Ltd.
- Tian Yang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Area restricted access system, method and non-transitory computer-r...
- Patent number 10,491,601
- Issue date Nov 26, 2019
- Ricoh Company, Ltd.
- Bin Da
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method, apparatus and electronic device for processing panoramic image
- Patent number 10,482,644
- Issue date Nov 19, 2019
- Ricoh Company, Ltd.
- Chaofeng Li
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Camera device having a parabolic mirror set between dual cameras an...
- Patent number 10,478,068
- Issue date Nov 19, 2019
- Ricoh Company, Ltd.
- Yupeng Zhang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Dual fisheye, hemispherical image projection and stitching method,...
- Patent number 10,482,571
- Issue date Nov 19, 2019
- Ricoh Company, Ltd.
- Hong Yi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Three dimensional image fusion method and device and non-transitory...
- Patent number 10,438,334
- Issue date Oct 8, 2019
- Ricoh Company, Ltd.
- Hong Yi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and device for recognizing user of mobile device
- Patent number 10,123,158
- Issue date Nov 6, 2018
- Ricoh Company, Ltd.
- Ke Liao
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Relative orientation angle calculation method and device as well as...
- Patent number 9,772,396
- Issue date Sep 26, 2017
- Ricoh Company, Ltd.
- Ke Liao
- G01 - MEASURING TESTING
Information Patent Grant
Method of controlling states of mobile node and verifier therein fo...
- Patent number 9,462,463
- Issue date Oct 4, 2016
- Ricoh Company, Ltd.
- Bin Da
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Area-limited self-organized network management method, communicatio...
- Patent number 9,326,315
- Issue date Apr 26, 2016
- Ricoh Company, Ltd.
- Haihua Yu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless network area limiting method and system based on near fiel...
- Patent number 9,226,336
- Issue date Dec 29, 2015
- Ricoh Company, Ltd.
- Yan Sun
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmitting device, receiving device, wireless communication syste...
- Patent number 9,055,436
- Issue date Jun 9, 2015
- Ricoh Company, Ltd.
- Yan Sun
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for determining projection area of image
- Patent number 8,861,892
- Issue date Oct 14, 2014
- Ricoh Company, Ltd.
- Haihua Yu
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
DEVICE AUTHENTICATION METHOD, SERVICE ACCESS CONTROL METHOD, DEVICE...
- Publication number 20200336481
- Publication date Oct 22, 2020
- RICOH COMPANY, LTD.
- Xiaojing FAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CAMERA DEVICE AND METHOD FOR SHOOTING LIGHT HAVING AT LEAST TWO WAV...
- Publication number 20180249910
- Publication date Sep 6, 2018
- RICOH COMPANY, LTD.
- Yupeng Zhang
- G01 - MEASURING TESTING
Information Patent Application
LOAD BALANCING METHOD, LOAD BALANCING SYSTEM, AND ACCESS CONTROLLER
- Publication number 20180255480
- Publication date Sep 6, 2018
- RICOH COMPANY, LTD.
- Tian YANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD, APPARATUS AND ELECTRONIC DEVICE FOR PROCESSING PANORAMIC IMAGE
- Publication number 20180253879
- Publication date Sep 6, 2018
- RICOH COMPANY, LTD.
- Chaofeng LI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
THREE DIMENSIONAL IMAGE FUSION METHOD AND DEVICE AND NON-TRANSITORY...
- Publication number 20180240223
- Publication date Aug 23, 2018
- RICOH COMPANY, LTD.
- Hong Yi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE PROCESSING METHOD AND DEVICE AS WELL AS NON-TRANSITORY COMPUT...
- Publication number 20180114291
- Publication date Apr 26, 2018
- RICOH COMPANY, LTD.
- Hong YI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AREA RESTRICTED ACCESS SYSTEM, METHOD AND NON-TRANSITORY COMPUTER-R...
- Publication number 20170006043
- Publication date Jan 5, 2017
- Bin DA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD AND DEVICE FOR RECOGNIZING USER OF MOBILE DEVICE
- Publication number 20160232677
- Publication date Aug 11, 2016
- RICOH COMPANY, LTD.
- Ke LIAO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
RELATIVE ORIENTATION ANGLE CALCULATION METHOD AND DEVICE AS WELL AS...
- Publication number 20160231415
- Publication date Aug 11, 2016
- RICOH COMPANY, LTD.
- Ke LIAO
- G01 - MEASURING TESTING
Information Patent Application
AREA RESTRICTED NETWORK MANAGEMENT METHOD AND DEVICE AS WELL AS ARE...
- Publication number 20150089606
- Publication date Mar 26, 2015
- RICOH COMPANY, LTD.
- Wei WANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND SYSTEM FOR ALLOCATING RADIO CHANNEL
- Publication number 20150029959
- Publication date Jan 29, 2015
- RICOH COMPANY, LTD.
- Bin DA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR DISCOVERING NETWORK NODE
- Publication number 20140241207
- Publication date Aug 28, 2014
- RICOH COMPANY, LTD.
- Yindong Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WIRELESS NETWORK AREA LIMITING METHOD AND SYSTEM BASED ON NEAR FIEL...
- Publication number 20140219262
- Publication date Aug 7, 2014
- RICOH COMPANY, LTD.
- Yan SUN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AREA-LIMITED SELF-ORGANIZED NETWORK MANAGEMENT METHOD, COMMUNICATIO...
- Publication number 20140126416
- Publication date May 8, 2014
- Haihua YU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMITTING DEVICE, RECEIVING DEVICE, WIRELESS COMMUNICATION SYSTE...
- Publication number 20130336484
- Publication date Dec 19, 2013
- Yan SUN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD OF CONTROLLING STATES OF MOBILE NODE AND VERIFIER THEREIN FO...
- Publication number 20130336485
- Publication date Dec 19, 2013
- Bin Da
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR DETERMINING PROJECTION AREA OF IMAGE
- Publication number 20130121601
- Publication date May 16, 2013
- Haihua YU
- G06 - COMPUTING CALCULATING COUNTING

Person

Patents Grantslast 30 patents

Device authentication method, service access control method, device...

Load balancing system with an access controller in the field of com...

Area restricted access system, method and non-transitory computer-r...

Method, apparatus and electronic device for processing panoramic image

Camera device having a parabolic mirror set between dual cameras an...

Dual fisheye, hemispherical image projection and stitching method,...

Three dimensional image fusion method and device and non-transitory...

Method and device for recognizing user of mobile device

Relative orientation angle calculation method and device as well as...

Method of controlling states of mobile node and verifier therein fo...

Area-limited self-organized network management method, communicatio...

Wireless network area limiting method and system based on near fiel...

Transmitting device, receiving device, wireless communication syste...

Method and apparatus for determining projection area of image

Patents Applicationslast 30 patents

DEVICE AUTHENTICATION METHOD, SERVICE ACCESS CONTROL METHOD, DEVICE...

CAMERA DEVICE AND METHOD FOR SHOOTING LIGHT HAVING AT LEAST TWO WAV...

LOAD BALANCING METHOD, LOAD BALANCING SYSTEM, AND ACCESS CONTROLLER

METHOD, APPARATUS AND ELECTRONIC DEVICE FOR PROCESSING PANORAMIC IMAGE

THREE DIMENSIONAL IMAGE FUSION METHOD AND DEVICE AND NON-TRANSITORY...

IMAGE PROCESSING METHOD AND DEVICE AS WELL AS NON-TRANSITORY COMPUT...

AREA RESTRICTED ACCESS SYSTEM, METHOD AND NON-TRANSITORY COMPUTER-R...

METHOD AND DEVICE FOR RECOGNIZING USER OF MOBILE DEVICE

RELATIVE ORIENTATION ANGLE CALCULATION METHOD AND DEVICE AS WELL AS...

AREA RESTRICTED NETWORK MANAGEMENT METHOD AND DEVICE AS WELL AS ARE...

METHOD AND SYSTEM FOR ALLOCATING RADIO CHANNEL

METHOD AND APPARATUS FOR DISCOVERING NETWORK NODE

WIRELESS NETWORK AREA LIMITING METHOD AND SYSTEM BASED ON NEAR FIEL...

AREA-LIMITED SELF-ORGANIZED NETWORK MANAGEMENT METHOD, COMMUNICATIO...

TRANSMITTING DEVICE, RECEIVING DEVICE, WIRELESS COMMUNICATION SYSTE...

METHOD OF CONTROLLING STATES OF MOBILE NODE AND VERIFIER THEREIN FO...

METHOD AND APPARATUS FOR DETERMINING PROJECTION AREA OF IMAGE