Koji KAWAHARA

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid discharge head, liquid discharge device, and liquid discharg...
- Patent number 11,141,976
- Issue date Oct 12, 2021
- Ricoh Company, Ltd.
- Toshimichi Odaka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Laminated substrate, liquid discharge head, and liquid discharge ap...
- Patent number 10,792,920
- Issue date Oct 6, 2020
- Ricoh Company, Ltd.
- Junichi Iwata
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid discharge head, liquid discharge device, and liquid discharg...
- Patent number 10,696,046
- Issue date Jun 30, 2020
- Ricoh Company, Ltd.
- Koji Kawahara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, AND LIQUID DISCHARG...
- Publication number 20200276818
- Publication date Sep 3, 2020
- Toshimichi ODAKA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LAMINATED SUBSTRATE, LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE AP...
- Publication number 20190358953
- Publication date Nov 28, 2019
- Junichi IWATA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, AND LIQUID DISCHARG...
- Publication number 20190240978
- Publication date Aug 8, 2019
- Koji KAWAHARA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS