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Kei SAITO
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Kanagawa, JP
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Patents Grants
last 30 patents
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 Applications
last 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