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Yuuki TSUCHIYA
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Positioning member, holding device, process cartridge, and image fo...
Patent number
12,189,331
Issue date
Jan 7, 2025
Ricoh Company, Ltd.
Kazuki Yogosawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer accommodating device with screw including screw blade as...
Patent number
11,835,887
Issue date
Dec 5, 2023
Ricoh Company, Ltd.
Yuuki Tsuchiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process cartridge and image forming apparatus incorporating same
Patent number
11,813,874
Issue date
Nov 14, 2023
Ricoh Company, Ltd.
Tatsuya Kubo
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Image forming apparatus including a process cartridge that includes...
Patent number
11,275,325
Issue date
Mar 15, 2022
Ricoh Company, Ltd.
Hotaru Hashikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device, process cartridge, and image forming apparatus
Patent number
11,256,194
Issue date
Feb 22, 2022
Ricoh Company, Ltd.
Yuuki Tsuchiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer container, developing device, and image forming apparatus
Patent number
11,112,731
Issue date
Sep 7, 2021
Ricoh Company, Ltd.
Naohiro Kawashima
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Image forming apparatus including control circuitry to execute a wa...
Patent number
11,086,251
Issue date
Aug 10, 2021
Ricoh Company, Ltd.
Ryusuke Mase
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device, process cartridge, and image forming apparatus
Patent number
10,705,484
Issue date
Jul 7, 2020
Ricoh Company, Ltd.
Yuki Oshikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Vertical biaxial developing device and image forming apparatus and...
Patent number
10,209,645
Issue date
Feb 19, 2019
Ricoh Company, Ltd.
Yuuki Tsuchiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device and image forming apparatus and process cartridge...
Patent number
10,168,642
Issue date
Jan 1, 2019
Ricoh Company, Ltd.
Tatsuya Ohhira
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device with casing having upper and lower compartments
Patent number
10,114,334
Issue date
Oct 30, 2018
Ricoh Company, Ltd.
Tatsuya Ohhira
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
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
POSITIONING MEMBER, HOLDING DEVICE, PROCESS CARTRIDGE, AND IMAGE FO...
Publication number
20230315006
Publication date
Oct 5, 2023
Kazuki YOGOSAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPER ACCOMMODATING DEVICE, DEVELOPING DEVICE, PROCESS CARTRIDG...
Publication number
20220397841
Publication date
Dec 15, 2022
Yuuki TSUCHIYA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS INCORPORATING SAME
Publication number
20220072862
Publication date
Mar 10, 2022
Tatsuya KUBO
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20210080856
Publication date
Mar 18, 2021
Hotaru HASHIKAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
Publication number
20210041806
Publication date
Feb 11, 2021
Yuuki TSUCHIYA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPER CONTAINER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS
Publication number
20200174400
Publication date
Jun 4, 2020
Naohiro KAWASHIMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20200117119
Publication date
Apr 16, 2020
Ricoh Company, Ltd.
Ryusuke MASE
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
Publication number
20200103824
Publication date
Apr 2, 2020
Ricoh Company, Ltd.
Yuki OSHIKAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE...
Publication number
20180143568
Publication date
May 24, 2018
RICOH COMPANY, LTD.
Tatsuya OHHIRA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE...
Publication number
20180136586
Publication date
May 17, 2018
RICOH COMPANY, LTD.
Yuuki TSUCHIYA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE...
Publication number
20170293257
Publication date
Oct 12, 2017
Tatsuya OHHIRA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY