Ryohhei SUGIYAMA

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Heating device, fixing device, and image forming apparatus
- Patent number 12,124,194
- Issue date Oct 22, 2024
- Ricoh Company, Ltd.
- Ryohhei Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 11,703,783
- Issue date Jul 18, 2023
- Ricoh Company, Ltd.
- Ryohhei Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method with temperature a...
- Patent number 10,401,766
- Issue date Sep 3, 2019
- Ricoh Company, Ltd.
- Ryohhei Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including a fixing device
- Patent number 10,191,423
- Issue date Jan 29, 2019
- Ricoh Company, Ltd.
- Ryohhei Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device, image forming apparatus, and method of controlling f...
- Patent number 9,817,345
- Issue date Nov 14, 2017
- Ricoh Company, Ltd.
- Motoyoshi Yamano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drive transmission unit, fixing device with drive transmission unit...
- Patent number 9,696,672
- Issue date Jul 4, 2017
- Ricoh Company, Ltd.
- Hiroshi Ono
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240385554
- Publication date Nov 21, 2024
- Ryohei MATSUDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20240361712
- Publication date Oct 31, 2024
- Hiroshi YOSHINAGA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20240353781
- Publication date Oct 24, 2024
- Kentaro YAMASHITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE SAME
- Publication number 20240176265
- Publication date May 30, 2024
- Ryohei MATSUDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20240176268
- Publication date May 30, 2024
- Hiroshi YOSHINAGA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20240004329
- Publication date Jan 4, 2024
- Hiroshi YOSHINAGA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20230305451
- Publication date Sep 28, 2023
- RICOH COMPANY, LTD.
- Ryohhei Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20230063831
- Publication date Mar 2, 2023
- Ryohhei SUGIYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20180088502
- Publication date Mar 29, 2018
- Ryohhei SUGIYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE, IMAGE FORMING APPARATUS, AND METHOD OF CONTROLLING F...
- Publication number 20170146933
- Publication date May 25, 2017
- RICOH COMPANY, LTD.
- Motoyoshi YAMANO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20170131666
- Publication date May 11, 2017
- RICOH COMPANY, LTD.
- Ryohhei SUGIYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRIVE TRANSMISSION UNIT, FIXING DEVICE WITH DRIVE TRANSMISSION UNIT...
- Publication number 20160306311
- Publication date Oct 20, 2016
- RICOH COMPANY, LTD.
- Hiroshi ONO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Ryohhei SUGIYAMA

Person

Patents Grantslast 30 patents

Heating device, fixing device, and image forming apparatus

Fixing device and image forming apparatus

Image forming apparatus and image forming method with temperature a...

Image forming apparatus including a fixing device

Fixing device, image forming apparatus, and method of controlling f...

Drive transmission unit, fixing device with drive transmission unit...

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS

HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

FIXING DEVICE, IMAGE FORMING APPARATUS, AND METHOD OF CONTROLLING F...

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

DRIVE TRANSMISSION UNIT, FIXING DEVICE WITH DRIVE TRANSMISSION UNIT...