Hiromasa Takagi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sheet conveying device, fixing device, and image forming apparatus
- Patent number 12,072,666
- Issue date Aug 27, 2024
- Ricoh Company, Ltd.
- Takahiro Imada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Contact-separation device, fixing device, and image forming apparatus
- Patent number 11,841,652
- Issue date Dec 12, 2023
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,693,362
- Issue date Jul 4, 2023
- Ricoh Company, Ltd.
- Hiromasa Takagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and cleaning method
- Patent number 11,500,314
- Issue date Nov 15, 2022
- Ricoh Company, Ltd.
- Keitaro Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device, heating device, and image forming device with a subs...
- Patent number 11,256,200
- Issue date Feb 22, 2022
- Ricoh Company, Ltd.
- Takahiro Imada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device capable of enhancing durability of endless belt and i...
- Patent number 10,935,911
- Issue date Mar 2, 2021
- Ricoh Company, Ltd.
- Teppei Kawata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,678,170
- Issue date Jun 9, 2020
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,156,818
- Issue date Dec 18, 2018
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,152,006
- Issue date Dec 11, 2018
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,061,235
- Issue date Aug 28, 2018
- Ricoh Company, Ltd.
- Keitaro Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus incorporating fixing device
- Patent number 10,012,932
- Issue date Jul 3, 2018
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,001,735
- Issue date Jun 19, 2018
- Ricoh Company, Limited
- Takahiro Imada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 9,983,526
- Issue date May 29, 2018
- Ricoh Company, Ltd.
- Takeshi Uchitani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,971,289
- Issue date May 15, 2018
- Ricoh Company, Ltd.
- Takamasa Hase
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,927,748
- Issue date Mar 27, 2018
- Ricoh Company, Ltd.
- Hiroshi Yoshinaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,904,220
- Issue date Feb 27, 2018
- Ricoh Company, Ltd.
- Kazuya Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,874,839
- Issue date Jan 23, 2018
- Ricoh Company, Ltd.
- Kazunari Sawada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,851,663
- Issue date Dec 26, 2017
- Ricoh Company, Ltd.
- Shohta Kobashigawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,829,840
- Issue date Nov 28, 2017
- Ricoh Company, Ltd.
- Takashi Seto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device capable of enhancing durability of endless belt and i...
- Patent number 9,811,031
- Issue date Nov 7, 2017
- Ricoh Company, Ltd.
- Teppei Kawata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including the fixing device
- Patent number 9,727,008
- Issue date Aug 8, 2017
- Ricoh Company, Ltd.
- Teppei Kawata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 9,715,203
- Issue date Jul 25, 2017
- Ricoh Company, Ltd.
- Takeshi Uchitani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including a fixing device that includes a r...
- Patent number 9,690,243
- Issue date Jun 27, 2017
- Ricoh Company, Ltd.
- Takamasa Hase
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device, image forming apparatus, and fixing method
- Patent number 9,678,460
- Issue date Jun 13, 2017
- Ricoh Company, Ltd.
- Takamasa Hase
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,651,905
- Issue date May 16, 2017
- Ricoh Company, Ltd.
- Ippei Fujimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,639,042
- Issue date May 2, 2017
- Ricoh Company, Ltd.
- Kenji Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,618,887
- Issue date Apr 11, 2017
- Ricoh Company, Ltd.
- Hiromasa Takagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,618,888
- Issue date Apr 11, 2017
- Ricoh Company, Ltd.
- Keitaro Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
NIP formation assembly, fixing device, and image forming apparatus
- Patent number 9,618,886
- Issue date Apr 11, 2017
- Ricoh Company, Ltd.
- Takashi Seto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,612,556
- Issue date Apr 4, 2017
- Ricoh Company, Ltd.
- Yasuhiko Ogino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
HEATING DEVICE, FRAME DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20240295847
- Publication date Sep 5, 2024
- Shigeo NANNO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FRAME DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20240295842
- Publication date Sep 5, 2024
- Hitoshi FUJIWARA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20240248426
- Publication date Jul 25, 2024
- Hiromasa TAKAGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SHEET CONVEYING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20230359142
- Publication date Nov 9, 2023
- Takahiro IMADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20230008258
- Publication date Jan 12, 2023
- Hiromasa TAKAGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CONTACT-SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20230004107
- Publication date Jan 5, 2023
- RICOH COMPANY, LTD.
- Seiji SAITOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND CLEANING METHOD
- Publication number 20220043376
- Publication date Feb 10, 2022
- Ricoh Company, Ltd.
- Keitaro SHOJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE, HEATING DEVICE, AND IMAGE FORMING DEVICE
- Publication number 20210223724
- Publication date Jul 22, 2021
- Takahiro IMADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20200159149
- Publication date May 21, 2020
- RICOH COMPANY, LTD.
- Takumi WAIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20190094764
- Publication date Mar 28, 2019
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE CAPABLE OF ENHANCING DURABILITY OF ENDLESS BELT AND I...
- Publication number 20180046121
- Publication date Feb 15, 2018
- Teppei KAWATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE FIXING DEVICE
- Publication number 20170293245
- Publication date Oct 12, 2017
- Teppei KAWATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20170277091
- Publication date Sep 28, 2017
- Takeshi Uchitani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
NIP-FORMING MEMBER, FIXING UNIT, AND IMAGE FORMING APPARATUS
- Publication number 20170255149
- Publication date Sep 7, 2017
- Hiromasa TAKAGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20170255150
- Publication date Sep 7, 2017
- Takamasa HASE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170248879
- Publication date Aug 31, 2017
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170248885
- Publication date Aug 31, 2017
- Kazuya SAITO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS INCORPORATING FIXING DEVICE
- Publication number 20170212457
- Publication date Jul 27, 2017
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170205742
- Publication date Jul 20, 2017
- Keitaro SHOJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170102652
- Publication date Apr 13, 2017
- RICOH COMPANY, LTD.
- Takahiro IMADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170010570
- Publication date Jan 12, 2017
- Ippei FUJIMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160378033
- Publication date Dec 29, 2016
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160378027
- Publication date Dec 29, 2016
- Kazunari SAWADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160334742
- Publication date Nov 17, 2016
- Shohta KOBASHIGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160274514
- Publication date Sep 22, 2016
- Kenji ISHII
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE, IMAGE FORMING APPARATUS, AND FIXING METHOD
- Publication number 20160274510
- Publication date Sep 22, 2016
- TAKAMASA HASE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160274511
- Publication date Sep 22, 2016
- Yasuhiko OGINO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160246228
- Publication date Aug 25, 2016
- Ippei FUJIMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160231672
- Publication date Aug 11, 2016
- TAKASHI SETO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160223961
- Publication date Aug 4, 2016
- Hiromasa TAKAGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hiromasa Takagi

Person

Patents Grantslast 30 patents

Sheet conveying device, fixing device, and image forming apparatus

Contact-separation device, fixing device, and image forming apparatus

Image forming apparatus

Image forming apparatus and cleaning method

Fixing device, heating device, and image forming device with a subs...

Fixing device capable of enhancing durability of endless belt and i...

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Image forming apparatus incorporating fixing device

Fixing device and image forming apparatus

Fixing device and image forming apparatus including same

Image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device capable of enhancing durability of endless belt and i...

Fixing device and image forming apparatus including the fixing device

Fixing device and image forming apparatus including same

Image forming apparatus including a fixing device that includes a r...

Fixing device, image forming apparatus, and fixing method

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

NIP formation assembly, fixing device, and image forming apparatus

Fixing device and image forming apparatus

Patents Applicationslast 30 patents

HEATING DEVICE, FRAME DEVICE, AND IMAGE FORMING APPARATUS

FRAME DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

SHEET CONVEYING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

CONTACT-SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND CLEANING METHOD

FIXING DEVICE, HEATING DEVICE, AND IMAGE FORMING DEVICE

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE CAPABLE OF ENHANCING DURABILITY OF ENDLESS BELT AND I...

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE FIXING DEVICE

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

NIP-FORMING MEMBER, FIXING UNIT, AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS INCORPORATING FIXING DEVICE

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE, IMAGE FORMING APPARATUS, AND FIXING METHOD

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS