Kei SAITO

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Powder conveyance device and image forming apparatus including a co...
- Patent number 12,216,418
- Issue date Feb 4, 2025
- Ricoh Company, Ltd.
- Naohiro Kawashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container including a rotatable container body, a gear, and a...
- Patent number 11,754,947
- Issue date Sep 12, 2023
- Ricoh Company, Ltd.
- Hideo Yoshizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container, developing device, process cartridge, and imag...
- Patent number 11,726,418
- Issue date Aug 15, 2023
- Ricoh Company, Ltd.
- Naohiro Kawashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,599,061
- Issue date Mar 7, 2023
- Ricoh Company, Ltd.
- Kei Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus containing regulated...
- Patent number 11,454,897
- Issue date Sep 27, 2022
- Ricoh Company, Ltd.
- Kei Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,449,002
- Issue date Sep 20, 2022
- Ricoh Company, Ltd.
- Kei Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container, developing device, process cartridge, and imag...
- Patent number 11,366,410
- Issue date Jun 21, 2022
- Ricoh Company, Ltd.
- Naohiro Kawashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device regulates an amount of developer on a developing...
- Patent number 11,131,944
- Issue date Sep 28, 2021
- Ricoh Company, Ltd.
- Kei Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus i...
- Patent number 10,649,371
- Issue date May 12, 2020
- Ricoh Company, Ltd.
- Kei Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus incorporating same
- Patent number 9,772,579
- Issue date Sep 26, 2017
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus incorporating same
- Patent number 9,625,851
- Issue date Apr 18, 2017
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
TONER CONTAINER AND IMAGE FORMING APPARATUS
- Publication number 20240231257
- Publication date Jul 11, 2024
- Hideo YOSHIZAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONTAINER AND IMAGE FORMING APPARATUS
- Publication number 20240134301
- Publication date Apr 25, 2024
- Hideo YOSHIZAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20240126189
- Publication date Apr 18, 2024
- Naohiro KAWASHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20240077813
- Publication date Mar 7, 2024
- Kei SAITO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20220390894
- Publication date Dec 8, 2022
- RICOH COMPANY, LTD.
- Kei SAITO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20220317595
- Publication date Oct 6, 2022
- Hideo YOSHIZAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAG...
- Publication number 20220276586
- Publication date Sep 1, 2022
- RICOH COMPANY, LTD.
- Naohiro KAWASHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20220091558
- Publication date Mar 24, 2022
- Kei SAITO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAG...
- Publication number 20210364950
- Publication date Nov 25, 2021
- RICOH COMPANY, LTD.
- Naohiro KAWASHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20210364942
- Publication date Nov 25, 2021
- RICOH COMPANY, LTD.
- Kei SAITO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20210165344
- Publication date Jun 3, 2021
- Kei SAITO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS I...
- Publication number 20190286013
- Publication date Sep 19, 2019
- RICOH COMPANY, LTD.
- Kei Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20170108795
- Publication date Apr 20, 2017
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160238966
- Publication date Aug 18, 2016
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Person

Patents Grantslast 30 patents

Powder conveyance device and image forming apparatus including a co...

Toner container including a rotatable container body, a gear, and a...

Developer container, developing device, process cartridge, and imag...

Image forming apparatus

Developing device and image forming apparatus containing regulated...

Image forming apparatus

Developer container, developing device, process cartridge, and imag...

Developing device regulates an amount of developer on a developing...

Developing device, process cartridge, and image forming apparatus i...

Developing device and image forming apparatus incorporating same

Developing device and image forming apparatus incorporating same

Patents Applicationslast 30 patents

TONER CONTAINER AND IMAGE FORMING APPARATUS

TONER CONTAINER AND IMAGE FORMING APPARATUS

POWDER CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAG...

IMAGE FORMING APPARATUS

DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAG...

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS I...

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME