Yoshihiro Ikefuji

Person

Kyoto, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Power transmission device and non-contact power feeding system for...
- Patent number 10,998,767
- Issue date May 4, 2021
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power transmission device non-contact power feeding system with det...
- Patent number 10,923,962
- Issue date Feb 16, 2021
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power transmitting device and non-contact power feeding system
- Patent number 10,778,046
- Issue date Sep 15, 2020
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Non-contact power feeding system
- Patent number 10,756,559
- Issue date Aug 25, 2020
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power reception device and non-contact power feeding system
- Patent number 10,700,554
- Issue date Jun 30, 2020
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Non-contact power supply system and power transmission device
- Patent number 10,601,258
- Issue date Mar 24, 2020
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Non-contact power supply system
- Patent number 10,530,187
- Issue date Jan 7, 2020
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power transmission device and non-contact power feeding system
- Patent number 10,432,029
- Issue date Oct 1, 2019
- ROHM CO., LTD.
- Yoshihiro Ikefuji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Charging system using NFC, mobile device chargeable by NFC, and cha...
- Patent number 10,424,977
- Issue date Sep 24, 2019
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power reception apparatus, power transmission apparatus, non-contac...
- Patent number 9,819,213
- Issue date Nov 14, 2017
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Personal identification device and electronic apparatus provided th...
- Patent number 7,961,918
- Issue date Jun 14, 2011
- Rohm Co., Ltd.
- Junichi Hikita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Filter circuit, and image sensor, image sensor module, and image re...
- Patent number 7,773,271
- Issue date Aug 10, 2010
- Rohm Co., Ltd.
- Nobuyuki Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of making semiconductor chips for liquid crystal display device
- Patent number 7,221,427
- Issue date May 22, 2007
- Rohm Co., Ltd.
- Takayuki Nakashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
IC card and IC chip module
- Patent number 7,003,678
- Issue date Feb 21, 2006
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Authentication system, authentication device, authentication data p...
- Patent number 6,842,859
- Issue date Jan 11, 2005
- Rohm Co., Ltd.
- Junichi Hikita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
IC card and IC chip module
- Patent number 6,802,008
- Issue date Oct 5, 2004
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data communication transponder and communications system employing it
- Patent number 6,747,546
- Issue date Jun 8, 2004
- Rohm Co., Ltd.
- Junichi Hikita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
IC card and method of using IC card
- Patent number 6,742,117
- Issue date May 25, 2004
- Rohm Co., Ltd.
- Junichi Hikita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Communications system having an authentication function
- Patent number 6,724,296
- Issue date Apr 20, 2004
- Rohm Co., Ltd.
- Junichi Hikita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Non contact type IC card
- Patent number 6,679,424
- Issue date Jan 20, 2004
- Rohm Co., Ltd.
- Junichi Hikita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Liquid crystal display device and method of making semiconductor ch...
- Patent number 6,680,773
- Issue date Jan 20, 2004
- Rohm Co., Ltd.
- Takayuki Nakashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Data communication equipment, data communication system, and data c...
- Patent number 6,654,466
- Issue date Nov 25, 2003
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Automatic adjusting responder with no self-contained power supply
- Patent number 6,624,743
- Issue date Sep 23, 2003
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Response device in contact/contactless IC card communication system
- Patent number 6,601,770
- Issue date Aug 5, 2003
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Telecommunication device
- Patent number 6,498,923
- Issue date Dec 24, 2002
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
IC card
- Patent number 6,491,228
- Issue date Dec 10, 2002
- Rohm Co., Ltd.
- Takashi Ueda
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Card mounted with circuit chip and circuit chip module
- Patent number 6,478,228
- Issue date Nov 12, 2002
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Circuit chip mounted card and circuit chip module
- Patent number 6,422,473
- Issue date Jul 23, 2002
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Non-contact IC card
- Patent number 6,404,644
- Issue date Jun 11, 2002
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Liquid crystal display having capacitors on a substrate with equal...
- Patent number 6,404,478
- Issue date Jun 11, 2002
- Rohm Co., Ltd.
- Takayuki Nakashima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
POWER TRANSMISSION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM
- Publication number 20190140483
- Publication date May 9, 2019
- ROHM CO., LTD.
- Yoshihiro IKEFUJI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER TRANSMISSION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM
- Publication number 20180342898
- Publication date Nov 29, 2018
- ROHM CO., LTD.
- Yoshihiro IKEFUJI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER RECEPTION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM
- Publication number 20180331575
- Publication date Nov 15, 2018
- ROHM CO., LTD.
- Yoshihiro IKEFUJI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER TRANSMISSION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM
- Publication number 20180262049
- Publication date Sep 13, 2018
- ROHM CO., LTD.
- Yoshihiro IKEFUJI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
NON-CONTACT POWER FEEDING SYSTEM
- Publication number 20180254654
- Publication date Sep 6, 2018
- ROHM CO., LTD.
- Yoshihiro IKEFUJI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
POWER TRANSMISSION DEVICE, POWER RECEPTION DEVICE AND NON-CONTACT P...
- Publication number 20180205255
- Publication date Jul 19, 2018
- Rohm Co., Ltd.
- Yoshihiro IKEFUJI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER TRANSMITTING DEVICE AND NON-CONTACT POWER FEEDING SYSTEM
- Publication number 20180183277
- Publication date Jun 28, 2018
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CHARGING SYSTEM USING NFC, MOBILE DEVICE CHARGEABLE BY NFC, AND CHA...
- Publication number 20180175676
- Publication date Jun 21, 2018
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
NON-CONTACT POWER SUPPLY SYSTEM AND POWER TRANSMISSION DEVICE
- Publication number 20180138757
- Publication date May 17, 2018
- Rohm Co., Ltd.
- Yoshihiro Ikefuji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Non-Contact Power Supply System
- Publication number 20180019618
- Publication date Jan 18, 2018
- Rohm Co., Ltd.
- Yoshihiro IKEFUJI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER RECEPTION APPARATUS, POWER TRANSMISSION APPARATUS, NON-CONTAC...
- Publication number 20150280453
- Publication date Oct 1, 2015
- Rohm Co., Ltd.
- Yoshihiro IKEFUJI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Personal Identification Device and Electronic Apparatus Provided Th...
- Publication number 20080008365
- Publication date Jan 10, 2008
- Rohm Co., Ltd.
- Junichi Hikita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Filter circuit, and image sensor, image sensor module, and image re...
- Publication number 20070070215
- Publication date Mar 29, 2007
- Nobuyuki Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical signal processor and image processing apparatus
- Publication number 20060077272
- Publication date Apr 13, 2006
- ROHM CO., LTD.
- Nobuyuki Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IC card and IC chip module
- Publication number 20050023361
- Publication date Feb 3, 2005
- ROHM CO., LTD.
- Yoshihiro Ikefuji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Liquid crystal display device and method of making semiconductor ch...
- Publication number 20040108969
- Publication date Jun 10, 2004
- Takayuki Nakashima
- G02 - OPTICS
Information Patent Application
Non contact type IC card
- Publication number 20030066895
- Publication date Apr 10, 2003
- ROHM CO., LTD.
- Junichi Hikita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
NON-CONTACT IC CARD
- Publication number 20020162893
- Publication date Nov 7, 2002
- JUNICHI HIKITA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
TELECOMMUNICATION DEVICE
- Publication number 20020137463
- Publication date Sep 26, 2002
- YOSHIHIRO IKEFUJI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Liquid crystal display device and method of making semiconductor ch...
- Publication number 20020072141
- Publication date Jun 13, 2002
- Takayuki Nakashima
- G02 - OPTICS
Information Patent Application
CIRCUIT CHIP MOUNTED CARD AND CIRCUIT CHIP MODULE
- Publication number 20020070280
- Publication date Jun 13, 2002
- YOSHIHIRO IKEFUJI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LIQUID CRYSTAL DISPLAY HAVING CAPACITORS ON A SUBSTRATE WITH EQUAL...
- Publication number 20020067441
- Publication date Jun 6, 2002
- Takayuki Nakashima
- G02 - OPTICS
Information Patent Application
Integrated circuit device
- Publication number 20020050635
- Publication date May 2, 2002
- ROHM CO., LTD.
- Katsuya Ogura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
IC CARD
- Publication number 20010045468
- Publication date Nov 29, 2001
- YOSHIHIRO IKEFUJI
- G06 - COMPUTING CALCULATING COUNTING

Yoshihiro Ikefuji

Person

Patents Grantslast 30 patents

Power transmission device and non-contact power feeding system for...

Power transmission device non-contact power feeding system with det...

Power transmitting device and non-contact power feeding system

Non-contact power feeding system

Power reception device and non-contact power feeding system

Non-contact power supply system and power transmission device

Non-contact power supply system

Power transmission device and non-contact power feeding system

Charging system using NFC, mobile device chargeable by NFC, and cha...

Power reception apparatus, power transmission apparatus, non-contac...

Personal identification device and electronic apparatus provided th...

Filter circuit, and image sensor, image sensor module, and image re...

Method of making semiconductor chips for liquid crystal display device

IC card and IC chip module

Authentication system, authentication device, authentication data p...

IC card and IC chip module

Data communication transponder and communications system employing it

IC card and method of using IC card

Communications system having an authentication function

Non contact type IC card

Liquid crystal display device and method of making semiconductor ch...

Data communication equipment, data communication system, and data c...

Automatic adjusting responder with no self-contained power supply

Response device in contact/contactless IC card communication system

Telecommunication device

IC card

Card mounted with circuit chip and circuit chip module

Circuit chip mounted card and circuit chip module

Non-contact IC card

Liquid crystal display having capacitors on a substrate with equal...

Patents Applicationslast 30 patents

POWER TRANSMISSION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM

POWER TRANSMISSION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM

POWER RECEPTION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM

POWER TRANSMISSION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM

NON-CONTACT POWER FEEDING SYSTEM

POWER TRANSMISSION DEVICE, POWER RECEPTION DEVICE AND NON-CONTACT P...

POWER TRANSMITTING DEVICE AND NON-CONTACT POWER FEEDING SYSTEM

CHARGING SYSTEM USING NFC, MOBILE DEVICE CHARGEABLE BY NFC, AND CHA...

NON-CONTACT POWER SUPPLY SYSTEM AND POWER TRANSMISSION DEVICE

Non-Contact Power Supply System

POWER RECEPTION APPARATUS, POWER TRANSMISSION APPARATUS, NON-CONTAC...

Personal Identification Device and Electronic Apparatus Provided Th...

Filter circuit, and image sensor, image sensor module, and image re...

Optical signal processor and image processing apparatus

IC card and IC chip module

Liquid crystal display device and method of making semiconductor ch...

Non contact type IC card

NON-CONTACT IC CARD

TELECOMMUNICATION DEVICE

Liquid crystal display device and method of making semiconductor ch...

CIRCUIT CHIP MOUNTED CARD AND CIRCUIT CHIP MODULE

LIQUID CRYSTAL DISPLAY HAVING CAPACITORS ON A SUBSTRATE WITH EQUAL...

Integrated circuit device

IC CARD