Tsukamoto; Ryuji

Patent Applications and Registrations

Patent applications and USPTO patent grants for Tsukamoto; Ryuji.The latest application filed is for "liquid discharge apparatus".

Company Profile

0.21.22

Tsukamoto; Ryuji - Kanagawa JP
Tsukamoto; Ryuji - Kanagawa-ken N/A JP
Tsukamoto; Ryuji - Ashigarakami-gun N/A JP
Tsukamoto; Ryuji - Ashigara-Kami-Gun JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Liquid discharge apparatus Grant 10,675,865 - Tsukamoto	2020-06-09
Liquid Discharge Apparatus App 20190299597 - Tsukamoto; Ryuji	2019-10-03
Liquid Discharge Head, Liquid Discharge Device, And Liquid Discharge Apparatus App 20170253034 - TSUKAMOTO; Ryuji	2017-09-07
Ink circulation apparatus, ink circulation method and inkjet recording apparatus Grant 8,955,949 - Tsukamoto February 17, 2	2015-02-17
Ink circulation apparatus, ink circulation method and inkjet recording apparatus Grant 8,955,952 - Tsukamoto February 17, 2	2015-02-17
Ink Circulation Apparatus, Ink Circulation Method And Inkjet Recording Apparatus App 20140300670 - TSUKAMOTO; Ryuji	2014-10-09
Ink Circulation Apparatus, Ink Circulation Method And Inkjet Recording Apparatus App 20140300672 - TSUKAMOTO; Ryuji	2014-10-09
Device and method for driving liquid discharge head, liquid discharge apparatus, and ink-jet apparatus Grant 8,801,128 - Tsukamoto August 12, 2	2014-08-12
Inkjet ejection apparatus, inkjet ejection method, and inkjet recording apparatus Grant 8,613,489 - Tsukamoto , et al. December 24, 2	2013-12-24
Method of manufacturing piezoelectric element and method of manufacturing liquid ejection head Grant 8,474,116 - Tsukamoto July 2, 2	2013-07-02
Device And Method For Driving Liquid Discharge Head, Liquid Discharge Apparatus, And Ink-jet Apparatus App 20130083106 - TSUKAMOTO; Ryuji	2013-04-04
Piezoelectric actuator, method of manufacturing piezoelectric actuator, liquid ejection head, method of manufacturing liquid ejection head and image forming apparatus Grant 8,382,257 - Tsukamoto February 26, 2	2013-02-26
Method and apparatus for driving inkjet head Grant 8,277,008 - Tsukamoto October 2, 2	2012-10-02
Method of manufacturing a piezoelectric actuator Grant 8,266,773 - Tsukamoto September 18, 2	2012-09-18
Method of manufacturing piezoelectric element and method of manufacturing liquid ejection head Grant 8,252,365 - Tsukamoto August 28, 2	2012-08-28
Method of driving piezoelectric actuator and method of driving liquid ejection head Grant 8,177,336 - Tsukamoto May 15, 2	2012-05-15
Method of manufacturing piezoelectric element and method of manufacturing liquid ejection head Grant 8,119,192 - Tsukamoto February 21, 2	2012-02-21
Inkjet Ejection Apparatus, Inkjet Ejection Method, And Inkjet Recording Apparatus App 20110175956 - TSUKAMOTO; Ryuji ; et al.	2011-07-21
Method of driving piezoelectric actuator and liquid ejection apparatus Grant 7,963,637 - Tsukamoto June 21, 2	2011-06-21
Method And Apparatus For Driving Inkjet Head App 20110050769 - TSUKAMOTO; Ryuji	2011-03-03
Piezoelectric actuator, liquid ejection head, image forming apparatus, and method of manufacturing piezoelectric actuator Grant 7,887,163 - Tsukamoto February 15, 2	2011-02-15
Piezoelectric Actuator, Method Of Manufacturing Piezoelectric Actuator, Liquid Ejection Head, Method Of Manufacturing Liquid Ejection Head And Image Forming Apparatus App 20100238216 - Tsukamoto; Ryuji	2010-09-23
Process for producing a piezoelectric film, film forming apparatus, and piezoelectric film Grant 7,772,747 - Fujii , et al. August 10, 2	2010-08-10
Method of manufacturing a liquid ejection head Grant 7,765,659 - Tsukamoto August 3, 2	2010-08-03
Method Of Manufacturing Piezoelectric Actuator, Liquid Ejection Head, And Image Forming Apparatus App 20100079554 - TSUKAMOTO; Ryuji	2010-04-01
Process For Producing A Piezoelectric Film, Film Forming Apparatus, And Piezoelectric Film App 20090236949 - FUJII; Takamichi ; et al.	2009-09-24
Method Of Driving Piezoelectric Actuator And Method Of Driving Liquid Ejection Head App 20090231395 - TSUKAMOTO; Ryuji	2009-09-17
Method Of Manufacturing Piezoelectric Element And Method Of Manufacturing Liquid Ejection Head App 20090223030 - TSUKAMOTO; Ryuji	2009-09-10
Method Of Driving Piezoelectric Actuator And Liquid Ejection Apparatus App 20090115821 - TSUKAMOTO; Ryuji	2009-05-07
Method Of Manufacturing Piezoelectric Actuator, Liquid Ejection Head And Image Forming Apparatus App 20090083958 - TSUKAMOTO; Ryuji	2009-04-02
Piezoelectric actuator, droplet ejection apparatus, and manufacturing method thereof Grant 7,439,659 - Tsukamoto October 21, 2	2008-10-21
Method Of Manufacturing Piezoelectric Element And Method Of Manufacturing Liquid Ejection Head App 20080241363 - TSUKAMOTO; Ryuji	2008-10-02
Method Of Manufacturing Piezoelectric Element And Method Of Manufacturing Liquid Ejection Head App 20080241362 - TSUKAMOTO; Ryuji	2008-10-02
Piezoelectric Actuator, Liquid Ejection Head, Image Forming Apparatus, And Method Of Manufacturing Piezoelectric Actuator App 20080225089 - TSUKAMOTO; Ryuji	2008-09-18
Methods of manufacturing piezoelectric actuator and liquid ejection head, piezoelectric actuator, liquid ejection head, and image forming apparatus App 20070138906 - Tsukamoto; Ryuji	2007-06-21
Liquid ejection head and manufacturing method thereof App 20060197808 - Tsukamoto; Ryuji	2006-09-07
Piezoelectric actuator, droplet ejection apparatus, and manufacturing method thereof App 20060186766 - Tsukamoto; Ryuji	2006-08-24

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