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Masami IWAMA
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Liquid discharge head and liquid discharge apparatus
Patent number
11,077,688
Issue date
Aug 3, 2021
Ricoh Company, Ltd.
Masami Iwama
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid discharge head and liquid discharge apparatus
Patent number
10,576,742
Issue date
Mar 3, 2020
Ricoh Company, Ltd.
Takakazu Kihira
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid discharge head, liquid discharge device, and liquid discharg...
Patent number
10,179,452
Issue date
Jan 15, 2019
Ricoh Company, Ltd.
Masami Iwama
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid-discharging head, liquid-discharging unit, and apparatus con...
Patent number
10,076,918
Issue date
Sep 18, 2018
Ricoh Company, Ltd.
Tomoaki Murakami
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid droplet ejection head, control device, control method, and m...
Patent number
8,974,026
Issue date
Mar 10, 2015
Ricoh Company, Ltd.
Masami Iwama
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Driving device of liquid-jet head, liquid-jet device and method for...
Patent number
8,931,871
Issue date
Jan 13, 2015
Ricoh Company, Ltd.
Masami Iwama
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid-ejection head unit and image forming apparatus
Patent number
8,366,242
Issue date
Feb 5, 2013
Ricoh Company, Ltd.
Tomohiko Koda
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
Information
Patent Application
LIQUID DISCHARGE HEAD, LIQUID DISCHARGE UNIT, AND LIQUID DISCHARGE...
Publication number
20240326428
Publication date
Oct 3, 2024
Masami IWAMA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGE HEAD AND IMAGE FORMING APPARATUS
Publication number
20230373212
Publication date
Nov 23, 2023
Masami IWAMA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS
Publication number
20200094595
Publication date
Mar 26, 2020
Masami Iwama
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS
Publication number
20190224974
Publication date
Jul 25, 2019
Takakazu KIHIRA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, AND LIQUID DISCHARG...
Publication number
20180194135
Publication date
Jul 12, 2018
Masami IWAMA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID-DISCHARGING HEAD, LIQUID-DISCHARGING UNIT, AND APPARATUS CON...
Publication number
20170253062
Publication date
Sep 7, 2017
RICOH COMPANY, LTD.
Tomoaki MURAKAMI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGING HEAD, LIQUID DISCHARGING UNIT, AND DEVICE TO DIS...
Publication number
20160236469
Publication date
Aug 18, 2016
RICOH COMPANY, LTD.
Masami Iwama
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DROPLET EJECTION HEAD, CONTROL DEVICE, CONTROL METHOD, AND M...
Publication number
20140375712
Publication date
Dec 25, 2014
RICOH COMPANY, LTD.
Masami Iwama
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
DRIVING DEVICE OF LIQUID-JET HEAD, LIQUID-JET DEVICE AND METHOD FOR...
Publication number
20130068850
Publication date
Mar 21, 2013
RICOH COMPANY, LTD.
Masami IWAMA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID-EJECTION HEAD UNIT AND IMAGE FORMING APPARATUS
Publication number
20100328400
Publication date
Dec 30, 2010
RICOH COMPANY, LTD.
Tomohiko Koda
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS