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Keitaroh Sakai
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Liquid discharger and liquid stirring method
Patent number
10,518,547
Issue date
Dec 31, 2019
Ricoh Company, Ltd.
Keitaroh Sakai
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Liquid stirrer and image forming apparatus including same
Patent number
10,124,617
Issue date
Nov 13, 2018
Ricoh Company, Ltd.
Keitaroh Sakai
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Liquid discharger including a head, a cap, a belt, and a belt cleaner
Patent number
9,849,678
Issue date
Dec 26, 2017
Ricoh Company, Ltd.
Keitaroh Sakai
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
Information
Patent Application
LIQUID DISCHARGE APPARATUS AND LIQUID DISCHARGE METHOD
Publication number
20240367437
Publication date
Nov 7, 2024
Keitaroh SAKAI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
DRIVE UNIT, LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE APPARATUS
Publication number
20240149583
Publication date
May 9, 2024
Keitaroh SAKAI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS
Publication number
20230278338
Publication date
Sep 7, 2023
Isamu KUBO
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
DISCHARGE HEAD, DISCHARGE UNIT, AND LIQUID DISCHARGE APPARATUS
Publication number
20220379609
Publication date
Dec 1, 2022
Ryohta MATSUFUJI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGER AND LIQUID STIRRING METHOD
Publication number
20170341407
Publication date
Nov 30, 2017
RICOH COMPANY, LTD.
Keitaroh SAKAI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGER
Publication number
20170100936
Publication date
Apr 13, 2017
Keitaroh SAKAI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID STIRRER AND IMAGE FORMING APPARATUS INCLUDING SAME
Publication number
20150360190
Publication date
Dec 17, 2015
RICOH COMPANY, LTD.
Keitaroh Sakai
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS