Ryohki Wakasa

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid circulation device, liquid discharge apparatus, and liquid c...
- Patent number 11,667,131
- Issue date Jun 6, 2023
- Ricoh Company, Ltd.
- Yuuichiroh Uematsu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid circulation device, liquid discharge apparatus, and liquid c...
- Patent number 11,260,667
- Issue date Mar 1, 2022
- Ricoh Company Ltd.
- Yuuichiroh Uematsu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid discharge device, image forming apparatus, and fabricating a...
- Patent number 11,077,671
- Issue date Aug 3, 2021
- Ricoh Company, Ltd.
- Ryohki Wakasa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
LIQUID DISCHARGE APPARATUS, LIQUID DISCHARGE METHOD, AND STORAGE ME...
- Publication number 20230271417
- Publication date Aug 31, 2023
- RICOH COMPANY, LTD.
- Ryohki Wakasa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID CIRCULATION DEVICE, LIQUID DISCHARGE APPARATUS, AND LIQUID C...
- Publication number 20220126594
- Publication date Apr 28, 2022
- RICOH COMPANY, LTD.
- Yuuichiroh Uematsu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID CIRCULATION DEVICE, LIQUID DISCHARGE APPARATUS, AND LIQUID C...
- Publication number 20200376842
- Publication date Dec 3, 2020
- Ricoh Company, Ltd.
- Yuuichiroh Uematsu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID DISCHARGE DEVICE, IMAGE FORMING APPARATUS, AND FABRICATING A...
- Publication number 20200147976
- Publication date May 14, 2020
- RICOH COMPANY, LTD.
- Ryohki Wakasa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS