Xianfeng CHEN

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric film, piezoelectric device, and method for making pie...
- Patent number 10,424,718
- Issue date Sep 24, 2019
- Ricoh Company, Ltd.
- Xianfeng Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Crystal pattern forming method, piezoelectric film producing method...
- Patent number 10,276,778
- Issue date Apr 30, 2019
- Ricoh Company, Ltd.
- Xianfeng Chen
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Polarizing apparatus and polarizing method
- Patent number 10,060,044
- Issue date Aug 28, 2018
- Ricoh Company, Ltd.
- Xianfeng Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making a piezoelectric film
- Patent number 9,902,153
- Issue date Feb 27, 2018
- Ricoh Company, Ltd.
- Xianfeng Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Pattern formation method, manufacturing method of peizoelectric fil...
- Patent number 9,583,694
- Issue date Feb 28, 2017
- Ricoh Company, Ltd.
- Xianfeng Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Complex oxide, thin-film capacitive element, liquid droplet dischar...
- Patent number 9,583,270
- Issue date Feb 28, 2017
- Ricoh Company, Ltd.
- Yoshikazu Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of heating, method of producing piezoelectric film, and ligh...
- Patent number 9,461,239
- Issue date Oct 4, 2016
- Ricoh Company, Ltd.
- Xianfeng Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making liquid discharge head, liquid discharge head, liqu...
- Patent number 9,202,717
- Issue date Dec 1, 2015
- Ricoh Company, Ltd.
- Atsushi Takeuchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
CRYSTAL PATTERN FORMING METHOD, PIEZOELECTRIC FILM PRODUCING METHOD...
- Publication number 20170365776
- Publication date Dec 21, 2017
- RICOH COMPANY, LTD.
- Xianfeng Chen
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
FERROELECTRIC ELEMENT AND METHOD OF MANUFACTURING FERROELECTRIC ELE...
- Publication number 20170298520
- Publication date Oct 19, 2017
- RICOH COMPANY, LTD.
- Xianfeng CHEN
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
POLARIZING APPARATUS AND POLARIZING METHOD
- Publication number 20170114473
- Publication date Apr 27, 2017
- RICOH COMPANY, LTD.
- Xianfeng CHEN
- C30 - CRYSTAL GROWTH
Information Patent Application
PIEZOELECTRIC FILM, PIEZOELECTRIC DEVICE, AND METHOD FOR MAKING PIE...
- Publication number 20170092836
- Publication date Mar 30, 2017
- RICOH COMPANY, LTD.
- Xianfeng CHEN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF MAKING PIEZOELECTRIC FILM, METHOD OF MAKING PIEZOELECTRIC...
- Publication number 20160023466
- Publication date Jan 28, 2016
- RICOH COMPANY, LTD.
- Xianfeng Chen
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PATTERN FORMATION METHOD, MANUFACTURING METHOD OF PIEZOELECTRIC FIL...
- Publication number 20150068673
- Publication date Mar 12, 2015
- RICOH COMPANY, LTD.
- Xianfeng Chen
- B32 - LAYERED PRODUCTS
Information Patent Application
COMPLEX OXIDE, THIN-FILM CAPACITIVE ELEMENT, LIQUID DROPLET DISCHAR...
- Publication number 20140268481
- Publication date Sep 18, 2014
- RICOH COMPANY, LTD.
- Yoshikazu AKIYAMA
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
METHOD OF HEATING, METHOD OF PRODUCING PIEZOELECTRIC FILM, AND LIGH...
- Publication number 20140216643
- Publication date Aug 7, 2014
- RICOH COMPANY, LTD.
- Xianfeng CHEN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF MAKING LIQUID DISCHARGE HEAD, LIQUID DISCHARGE HEAD, LIQU...
- Publication number 20130169713
- Publication date Jul 4, 2013
- RICOH COMPANY, LTD.
- Atsushi Takeuchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Xianfeng CHEN

Person

Patents Grantslast 30 patents

Piezoelectric film, piezoelectric device, and method for making pie...

Crystal pattern forming method, piezoelectric film producing method...

Polarizing apparatus and polarizing method

Method of making a piezoelectric film

Pattern formation method, manufacturing method of peizoelectric fil...

Complex oxide, thin-film capacitive element, liquid droplet dischar...

Method of heating, method of producing piezoelectric film, and ligh...

Method of making liquid discharge head, liquid discharge head, liqu...

Patents Applicationslast 30 patents

CRYSTAL PATTERN FORMING METHOD, PIEZOELECTRIC FILM PRODUCING METHOD...

FERROELECTRIC ELEMENT AND METHOD OF MANUFACTURING FERROELECTRIC ELE...

POLARIZING APPARATUS AND POLARIZING METHOD

PIEZOELECTRIC FILM, PIEZOELECTRIC DEVICE, AND METHOD FOR MAKING PIE...

METHOD OF MAKING PIEZOELECTRIC FILM, METHOD OF MAKING PIEZOELECTRIC...

PATTERN FORMATION METHOD, MANUFACTURING METHOD OF PIEZOELECTRIC FIL...

COMPLEX OXIDE, THIN-FILM CAPACITIVE ELEMENT, LIQUID DROPLET DISCHAR...

METHOD OF HEATING, METHOD OF PRODUCING PIEZOELECTRIC FILM, AND LIGH...

METHOD OF MAKING LIQUID DISCHARGE HEAD, LIQUID DISCHARGE HEAD, LIQU...