Tomizawa; Keiji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tomizawa; Keiji.The latest application filed is for "liquid ejection head and liquid ejection apparatus".
Company Profile
3.53.54
- Tomizawa; Keiji - Kanagawa JP
- Tomizawa; Keiji - Yokohama JP
- Tomizawa; Keiji - Yokohama-shi JP
- Tomizawa; Keiji - Kanagawa-ken JP
Patent Activity
| Patent | Date |
|---|---|
| Liquid Ejection Head And Liquid Ejection Apparatus App 20210402770 - Hamada; Yoshihiro ; et al. | 2021-12-30 |
| Liquid Ejection Head And Liquid Ejection Apparatus App 20210402765 - Tomizawa; Keiji ; et al. | 2021-12-30 |
| Liquid ejection head and method of manufacturing the same Grant 11,077,658 - Ishiwata , et al. August 3, 2 | 2021-08-03 |
| Liquid Ejection Head And Method Of Manufacturing The Same App 20200070513 - Ishiwata; Tomoki ; et al. | 2020-03-05 |
| Liquid ejection head and liquid ejection apparatus Grant 10,322,578 - Kudo , et al. | 2019-06-18 |
| Printing apparatus and method of controlling printhead Grant 10,308,018 - Miura , et al. | 2019-06-04 |
| Liquid ejection head Grant 10,300,698 - Tomizawa , et al. | 2019-05-28 |
| Liquid Ejection Head And Liquid Ejection Apparatus App 20180361734 - Kudo; Tomoko ; et al. | 2018-12-20 |
| Liquid Ejection Head App 20180345668 - Tomizawa; Keiji ; et al. | 2018-12-06 |
| Liquid discharge head Grant 9,969,163 - Muraoka , et al. May 15, 2 | 2018-05-15 |
| Printing Apparatus And Method Of Controlling Printhead App 20180111370 - Miura; Yosuke ; et al. | 2018-04-26 |
| Liquid ejecting head, ejecting element substrate and liquid ejecting apparatus Grant 9,889,650 - Kodoi , et al. February 13, 2 | 2018-02-13 |
| Liquid discharge head and liquid discharge apparatus using the same Grant 9,731,503 - Kodoi , et al. August 15, 2 | 2017-08-15 |
| Method for controlling liquid ejection head and liquid ejecting apparatus Grant 9,676,181 - Tomizawa , et al. June 13, 2 | 2017-06-13 |
| Liquid Discharge Head App 20170136769 - Muraoka; Chiaki ; et al. | 2017-05-18 |
| Method For Controlling Liquid Ejection Head And Liquid Ejecting Apparatus App 20170028712 - Tomizawa; Keiji ; et al. | 2017-02-02 |
| Liquid Ejecting Head, Ejecting Element Substrate And Liquid Ejcting Apparatus App 20160339700 - Kodoi; Takuma ; et al. | 2016-11-24 |
| Liquid ejection head Grant 9,283,755 - Muraoka , et al. March 15, 2 | 2016-03-15 |
| Print head and inkjet printing apparatus Grant 9,266,325 - Tomizawa , et al. February 23, 2 | 2016-02-23 |
| Liquid ejection head, liquid ejection apparatus, and method of manufacturing liquid ejection head Grant 9,233,536 - Tomizawa , et al. January 12, 2 | 2016-01-12 |
| Liquid Ejection Head App 20150290934 - Muraoka; Chiaki ; et al. | 2015-10-15 |
| Liquid ejection head and method of producing the same Grant 9,156,263 - Kodoi , et al. October 13, 2 | 2015-10-13 |
| Liquid Ejection Head, Liquid Ejection Apparatus, And Method Of Manufacturing Liquid Ejection Head App 20150210077 - Tomizawa; Keiji ; et al. | 2015-07-30 |
| Liquid discharge head and method of making the same Grant 9,044,944 - Omura , et al. June 2, 2 | 2015-06-02 |
| Liquid Ejection Head And Method Of Producing The Same App 20150130873 - KODOI; Takuma ; et al. | 2015-05-14 |
| Inkjet printing apparatus and control method thereof Grant 9,004,630 - Nagatsuka , et al. April 14, 2 | 2015-04-14 |
| Printing apparatus and aging method Grant 8,985,721 - Tomizawa , et al. March 24, 2 | 2015-03-24 |
| Process for producing chip Grant 8,945,817 - Tomizawa , et al. February 3, 2 | 2015-02-03 |
| Process for producing liquid ejection head Grant 8,877,431 - Kodoi , et al. November 4, 2 | 2014-11-04 |
| Liquid Discharge Head And Method Of Making The Same App 20140307028 - Omura; Atsushi ; et al. | 2014-10-16 |
| Liquid discharge head Grant 8,845,081 - Oikawa , et al. September 30, 2 | 2014-09-30 |
| Process For Producing Liquid Ejection Head App 20140199633 - Kodoi; Takuma ; et al. | 2014-07-17 |
| Process For Producing Chip App 20140198157 - Tomizawa; Keiji ; et al. | 2014-07-17 |
| Printing Apparatus And Aging Method App 20140152725 - Tomizawa; Keiji ; et al. | 2014-06-05 |
| Print Head And Inkjet Printing Apparatus App 20140125737 - Tomizawa; Keiji ; et al. | 2014-05-08 |
| Inkjet Printing Apparatus And Control Method Thereof App 20130307889 - Nagatsuka; Toshikazu ; et al. | 2013-11-21 |
| Liquid Discharge Head And Liquid Discharge Apparatus Using The Same App 20130286096 - Kodoi; Takuma ; et al. | 2013-10-31 |
| Liquid Discharge Head App 20130076835 - Oikawa; Masaki ; et al. | 2013-03-28 |
| Inkjet head Grant 8,342,648 - Muraoka , et al. January 1, 2 | 2013-01-01 |
| Printing apparatus and control method therefor Grant 8,342,645 - Tomizawa , et al. January 1, 2 | 2013-01-01 |
| Inkjet print apparatus and inkjet print method Grant 8,342,631 - Kyoshima , et al. January 1, 2 | 2013-01-01 |
| Inkjet printing apparatus and inkjet printing method Grant 8,287,091 - Kyoshima , et al. October 16, 2 | 2012-10-16 |
| Ink jet print head, ink jet printing apparatus and ink jet printing method Grant 8,231,203 - Akama , et al. July 31, 2 | 2012-07-31 |
| Liquid ejection head and manufacturing method of liquid ejection head Grant 8,210,655 - Muraoka , et al. July 3, 2 | 2012-07-03 |
| Ink jet print head Grant 8,177,329 - Matsumoto , et al. May 15, 2 | 2012-05-15 |
| Print head Grant 8,162,446 - Tomizawa , et al. April 24, 2 | 2012-04-24 |
| Printhead substrate, printhead, head cartridge, and printing apparatus Grant 8,132,895 - Tomizawa , et al. March 13, 2 | 2012-03-13 |
| Liquid ejecting head and manufacturing dimension control method Grant 8,100,505 - Kuroda , et al. January 24, 2 | 2012-01-24 |
| Print head with offset ejection ports Grant 8,087,759 - Oikawa , et al. January 3, 2 | 2012-01-03 |
| Ink-jet recording head Grant 8,083,322 - Tomizawa , et al. December 27, 2 | 2011-12-27 |
| Liquid ejection head and printing apparatus Grant 8,033,651 - Tomizawa , et al. October 11, 2 | 2011-10-11 |
| Liquid recording head Grant 7,984,976 - Tomizawa , et al. July 26, 2 | 2011-07-26 |
| Liquid ejection head Grant 7,980,663 - Matsumoto , et al. July 19, 2 | 2011-07-19 |
| Inkjet print head Grant 7,963,635 - Oikawa , et al. June 21, 2 | 2011-06-21 |
| Ink jet recording head and ink jet recording apparatus Grant 7,963,633 - Oikawa , et al. June 21, 2 | 2011-06-21 |
| Liquid ejection head, inkjet printing apparatus and liquid ejecting method Grant 7,938,511 - Tomizawa , et al. May 10, 2 | 2011-05-10 |
| Inkjet Print Apparatus And Inkjet Print Method App 20110084999 - Kyoshima; Masayuki ; et al. | 2011-04-14 |
| Inkjet Head App 20110074884 - Muraoka; Chiaki ; et al. | 2011-03-31 |
| Inkjet Printing Apparatus And Inkjet Printing Method App 20100328384 - Kyoshima; Masayuki ; et al. | 2010-12-30 |
| Printing Apparatus And Control Method Therefor App 20100289843 - Tomizawa; Keiji ; et al. | 2010-11-18 |
| Liquid jet head Grant 7,832,843 - Oikawa , et al. November 16, 2 | 2010-11-16 |
| Liquid jet head Grant 7,784,904 - Ide , et al. August 31, 2 | 2010-08-31 |
| Ink jet recording head and liquid jetting method Grant 7,771,026 - Ide , et al. August 10, 2 | 2010-08-10 |
| Ink Jet Print Head App 20100188465 - Matsumoto; Mitsuhiro ; et al. | 2010-07-29 |
| Ink jet print head Grant 7,735,962 - Matsumoto , et al. June 15, 2 | 2010-06-15 |
| Liquid Recording Head App 20100091067 - TOMIZAWA; Keiji ; et al. | 2010-04-15 |
| Ink jet printing apparatus and ink jet printing method Grant 7,695,088 - Yamane , et al. April 13, 2 | 2010-04-13 |
| Liquid Ejection Head App 20100053277 - Matsumoto; Mitsuhiro ; et al. | 2010-03-04 |
| Ink Jet Print Head, Ink Jet Printing Apparatus And Ink Jet Printing Method App 20100045719 - Akama; Yuichiro ; et al. | 2010-02-25 |
| Ink-jet Recording Head App 20100045748 - Tomizawa; Keiji ; et al. | 2010-02-25 |
| Liquid recording head Grant 7,654,648 - Tomizawa , et al. February 2, 2 | 2010-02-02 |
| Print Head App 20090315945 - Oikawa; Masaki ; et al. | 2009-12-24 |
| Ink-jet recording head Grant 7,628,472 - Tomizawa , et al. December 8, 2 | 2009-12-08 |
| Ink jet recording head Grant RE40,994 - Murakami , et al. November 24, 2 | 2009-11-24 |
| Printhead Substrate, Printhead, Head Cartridge, And Printing Apparatus App 20090251509 - Tomizawa; Keiji ; et al. | 2009-10-08 |
| Ink jet recording head Grant 7,591,537 - Tsuchii , et al. September 22, 2 | 2009-09-22 |
| Liquid Ejection Head And Manufacturing Method Of Liquid Ejection Head App 20090201343 - Muraoka; Chiaki ; et al. | 2009-08-13 |
| Recording apparatus and recording method Grant 7,556,330 - Saito , et al. July 7, 2 | 2009-07-07 |
| Liquid Ejection Head And Printing Apparatus App 20090153624 - Tomizawa; Keiji ; et al. | 2009-06-18 |
| Liquid Ejecting Head And Manufacturing Dimension Control Method App 20090147050 - Kuroda; Tomotsugu ; et al. | 2009-06-11 |
| Inkjet Print Head App 20090147056 - Oikawa; Masaki ; et al. | 2009-06-11 |
| Liquid Jet Head App 20090066752 - Ide; Shuichi ; et al. | 2009-03-12 |
| Liquid Ejection Head, Inkjet Printing Apparatus And Liquid Ejecting Method App 20090058949 - Tomizawa; Keiji ; et al. | 2009-03-05 |
| Ink Jet Print Head App 20090058933 - Matsumoto; Mitsuhiro ; et al. | 2009-03-05 |
| Print Head App 20080239007 - Tomizawa; Keiji ; et al. | 2008-10-02 |
| Ink Jet Recording Head And Liquid Jetting Method App 20080239011 - Ide; Shuichi ; et al. | 2008-10-02 |
| Ink Jet Printing Apparatus And Ink Jet Printing Method App 20080150991 - Yamane; Toru ; et al. | 2008-06-26 |
| Ink Jet Recording Head And Ink Jet Recording Apparatus App 20080143786 - Oikawa; Masaki ; et al. | 2008-06-19 |
| Liquid Jet Head App 20080055368 - Oikawa; Masaki ; et al. | 2008-03-06 |
| Ink Jet Recording Head App 20080012898 - Tsuchii; Ken ; et al. | 2008-01-17 |
| Liquid Recording Head App 20070206065 - Tomizawa; Keiji ; et al. | 2007-09-06 |
| Recording apparatus and recording method App 20070057985 - Saito; Tetsuya ; et al. | 2007-03-15 |
| Ink jet record head Grant 7,090,334 - Tomizawa , et al. August 15, 2 | 2006-08-15 |
| Ink jet record head Grant 6,984,026 - Tomizawa , et al. January 10, 2 | 2006-01-10 |
| Ink jet record head Grant 6,971,736 - Tomizawa , et al. December 6, 2 | 2005-12-06 |
| Ink jet record head App 20050219326 - Tomizawa, Keiji ; et al. | 2005-10-06 |
| Ink jet recording head Grant 6,935,723 - Murakami , et al. August 30, 2 | 2005-08-30 |
| Ink jet recording head Grant 6,830,317 - Tsuchii , et al. December 14, 2 | 2004-12-14 |
| Ink-jet recording head App 20040218007 - Tomizawa, Keiji ; et al. | 2004-11-04 |
| Ink jet record head App 20040130598 - Tomizawa, Keiji ; et al. | 2004-07-08 |
| Ink jet record head App 20040056927 - Tomizawa, Keiji ; et al. | 2004-03-25 |
| Ink jet recording head App 20040021744 - Murakami, Shuichi ; et al. | 2004-02-05 |
| Ink jet recording head App 20030197760 - Tsuchii, Ken ; et al. | 2003-10-23 |
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