Yokoyama; Sakai

Patent Applications and Registrations

Patent applications and USPTO patent grants for Yokoyama; Sakai.The latest application filed is for "circuit board for ink jet head, ink jet head having the same, method for cleaning the head and ink jet printing apparatus using the head".

Company Profile

0.31.27

Yokoyama; Sakai - Kawasaki N/A JP
YOKOYAMA; SAKAI - KAWASAKI-SHI JP
Yokoyama; Sakai - Kanagawa JP
Yokoyama; Sakai - Tokyo JP
Yokoyama; Sakai - Isehara 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
Method of producing liquid ejection head Grant 8,904,639 - Matsumoto , et al. December 9, 2	2014-12-09
Circuit board for ink jet head, ink jet head having the same, method for cleaning the head and ink jet printing apparatus using the head Grant 8,491,087 - Sakai , et al. July 23, 2	2013-07-23
Method of manufacturing liquid discharge head Grant 8,429,820 - Koyama , et al. April 30, 2	2013-04-30
Circuit Board For Ink Jet Head, Ink Jet Head Having The Same, Method For Cleaning The Head And Ink Jet Printing Apparatus Using The Head App 20120105537 - SAKAI; TOSHIYASU ; et al.	2012-05-03
Method Of Producing Liquid Ejection Head App 20120055022 - Matsumoto; Keiji ; et al.	2012-03-08
Liquid discharge head substrate, liquid discharge head using the substrate, and manufacturing method therefor Grant 8,129,204 - Saito , et al. March 6, 2	2012-03-06
Method Of Manufacturing Liquid Discharge Head App 20120047738 - Koyama; Shuji ; et al.	2012-03-01
Circuit board for ink jet head, ink jet head having the same, method for cleaning the head and ink jet printing apparatus using the head Grant 8,123,330 - Sakai , et al. February 28, 2	2012-02-28
Ink jet recording head and manufacturing method of ink jet recording head Grant 8,079,675 - Ozaki , et al. December 20, 2	2011-12-20
Circuit Board For Ink Jet Head, Ink Jet Head Having The Same, Method For Cleaning The Head And Ink Jet Printing Apparatus Using The Head App 20110199421 - SAKAI; TOSHIYASU ; et al.	2011-08-18
Ink jet print head and method for manufacturing ink jet print head Grant 7,967,421 - Kozuka , et al. June 28, 2	2011-06-28
Method of manufacturing ink jet circuit board with heaters and electrodes constructed to reduce corrosion Grant 7,954,238 - Shibata , et al. June 7, 2	2011-06-07
Circuit board for ink jet head, ink jet head having the same, method for cleaning the head and ink jet printing apparatus using the head Grant 7,950,769 - Sakai , et al. May 31, 2	2011-05-31
Ink jet head circuit board, method of manufacturing the same and ink jet head using the same Grant 7,862,155 - Shibata , et al. January 4, 2	2011-01-04
Ink jet recording head and manufacturing method of ink jet recording head Grant 7,857,429 - Ozaki , et al. December 28, 2	2010-12-28
Liquid Discharge Head Substrate, Liquid Discharge Head Using The Substrate, And Manufacturing Method Therefor App 20100285617 - Saito; Ichiro ; et al.	2010-11-11
Substrate for ink jet printing head, ink jet printing head, ink jet printing apparatus, and method of blowing fuse element of ink jet printing head Grant 7,798,595 - Hatsui , et al. September 21, 2	2010-09-21
Base member for liquid discharge head, liquid discharge head utilizing the same, and producing method therefor Grant 7,712,875 - Shibata , et al. May 11, 2	2010-05-11
Substrate For Liquid Discharge Head, Method Of Manufacturing The Same, And Liquid Discharge Head Using Such Substrate App 20100079551 - Saito; Ichiro ; et al.	2010-04-01
Circuit board for ink jet head, method of manufacturing the same, and ink jet head using the same Grant 7,681,993 - Ono , et al. March 23, 2	2010-03-23
Ink jet print head substrate, ink jet print head, ink jet printing apparatus, and method of manufacturing ink jet print head substrate Grant 7,669,981 - Ozaki , et al. March 2, 2	2010-03-02
Ink jet head circuit board, method of manufacturing the same and ink jet head using the same Grant 7,641,316 - Sakai , et al. January 5, 2	2010-01-05
Manufacturing Method of Semiconductive Element and Ink Jet Head Substrate Grant 7,591,071 - Ibe , et al. September 22, 2	2009-09-22
Ink jet head circuit board, method of manufacturing the same and ink jet head using the same Grant 7,566,116 - Saito , et al. July 28, 2	2009-07-28
Ink Jet Print Head Substrate, Ink Jet Print Head, Ink Jet Printing Apparatus, And Method Of Manufacturing Ink Jet Print Head Substrate App 20090179938 - OZAKI; TERUO ; et al.	2009-07-16
Ink jet print head substrate, ink jet print head, ink jet printing apparatus, and method of manufacturing ink jet print head substrate Grant 7,533,969 - Ozaki , et al. May 19, 2	2009-05-19
Substrate For Ink Jet Printing Head, Ink Jet Printing Head, Ink Jet Printing Apparatus, And Method Of Blowing Fuse Element Of Ink Jet Printing Head App 20090040264 - HATSUI; Takuya ; et al.	2009-02-12
Substrate for ink jet printing head, ink jet printing head, ink jet printing apparatus, and method of blowing fuse element of ink jet printing head Grant 7,472,975 - Hatsui , et al. January 6, 2	2009-01-06
Method Of Manufacturing Ink Jet Circuit Board With Heaters And Electrodes Constructed To Reduce Corrosion App 20080188018 - Shibata; Kazuaki ; et al.	2008-08-07
Substrate for ink jet head with TaCr alloy protective layer, ink jet head utilizing the same and producing method therefor Grant 7,393,084 - Saito , et al. July 1, 2	2008-07-01
Ink Jet Print Head And Method For Manufacturing Ink Jet Print Head App 20080151007 - Kozuka; Yuki ; et al.	2008-06-26
Ink jet head circuit board with heaters and electrodes constructed to reduce corrosion, method of manufacturing the same and ink jet head using the same Grant 7,374,275 - Shibata , et al. May 20, 2	2008-05-20
Substrate for liquid discharge head, liquid discharge head using substrate for liquid discharge head and method of manufacturing the same Grant 7,338,150 - Ibe , et al. March 4, 2	2008-03-04
Substrate for ink jet head, ink jet head using the same, and manufacturing method thereof Grant 7,306,327 - Sakai , et al. December 11, 2	2007-12-11
Liquid Discharge Head Substrate, Liquid Discharge Head Using The Substrate, And Manufacturing Method Therefor App 20070252873 - Saito; Ichiro ; et al.	2007-11-01
Base Member For Liquid Discharge Head, Liquid Discharge Head Utilizing The Same, And Producing Method Therefor App 20070242106 - Shibata; Kazuaki ; et al.	2007-10-18
Substrate For Liquid Discharge Head, Liquid Discharge Head Using Substrate For Liquid Discharge Head And Method Of Manufacturing The Same App 20070206061 - IBE; SATOSHI ; et al.	2007-09-06
Substrate for liquid discharge head, liquid discharge head using substrate for liquid discharge head and method of manufacturing the same Grant 7,255,426 - Ibe , et al. August 14, 2	2007-08-14
Circuit Board For Ink Jet Head, Ink Jet Head Having The Same, Method For Cleaning The Head And Ink Jet Printing Apparatus Using The Head App 20070146428 - SAKAI; TOSHIYASU ; et al.	2007-06-28
Ink Jet Recording Head And Manufacturing Method Of Ink Jet Recording Head App 20070120902 - OZAKI; TERUO ; et al.	2007-05-31
Substrate for ink jet printing head, ink jet printing head, ink jet printing apparatus, and method of blowing fuse element of ink jet printing head App 20070008382 - Hatsui; Takuya ; et al.	2007-01-11
Ink jet print head substrate, ink jet print head, ink jet printing apparatus, and method of manufacturing ink jet print head substrate App 20060256160 - Ozaki; Teruo ; et al.	2006-11-16
Semiconductive element, ink jet head substrate and manufacturing method therefor App 20060170734 - Ibe; Satoshi ; et al.	2006-08-03
Substrate for ink jet head, ink jet head using the same, and manufacturing method thereof App 20060146095 - Sakai; Toshiyasu ; et al.	2006-07-06
Heat generating resistant element film, substrate for ink jet head utilizing the same, ink jet head and ink jet apparatus Grant 7,055,937 - Suzuki , et al. June 6, 2	2006-06-06
Ink jet head circuit board, method of manufacturing the same and ink jet head using the same App 20060098053 - Saito; Ichiro ; et al.	2006-05-11
Substrate for ink jet head, ink jet head utilizing the same and producing method therefor App 20060061626 - Saito; Ichiro ; et al.	2006-03-23
Ink jet head circuit board, method of manufacturing the same and ink jet head using the same App 20060033778 - Shibata; Kazuaki ; et al.	2006-02-16
Ink jet head circuit board, method of manufacturing the same and ink jet head using the same App 20060033782 - Sakai; Toshiyasu ; et al.	2006-02-16
Ink jet head circuit board, method of manufacturing the same and ink jet head using the same App 20060033779 - Shibata; Kazuaki ; et al.	2006-02-16
Circuit board for ink jet head, method of manufacturing the same, and ink jet head using the same App 20060033780 - Ono; Kenji ; et al.	2006-02-16
Substrate for liquid discharge head, liquid discharge head using substrate for liquid discharge head and method of manufacturing the same App 20050128254 - Ibe, Satoshi ; et al.	2005-06-16
Heat generating resistant element film, substrate for ink jet head utilizing the same, ink jet head and ink jet apparatus App 20040179084 - Suzuki, Hiroyuki ; et al.	2004-09-16
Ink jet recording head and apparatus having a protective member formed above energy generators for generating energy used to discharge ink Grant 5,491,505 - Suzuki , et al. February 13, 1	1996-02-13
Recording head having multi-layer matrix wiring Grant 5,081,474 - Shibata , et al. January 14, 1	1992-01-14

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