Igawa; Tatsuo

Patent Applications and Registrations

Patent applications and USPTO patent grants for Igawa; Tatsuo.The latest application filed is for "ink-jet recording head and ink-jet recorder".

Company Profile

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Igawa; Tatsuo - Kitaibaraki JP
Igawa; Tatsuo - Kita Ibaraki JP
Igawa; Tatsuo - Kitaibaraki-shi Ibaraki-ken 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
Ink-jet recording head and ink-jet recorder Grant 6,604,816 - Yonekura , et al. August 12, 2	2003-08-12
Developing apparatus and color electrophotographic apparatus using the same Grant 5,832,350 - Kumasaka , et al. November 3, 1	1998-11-03
Developing apparatus for an electrophotographic machine Grant 5,574,546 - Kumasaka , et al. November 12, 1	1996-11-12
Multiplexed driving method for an electrooptical device, and circuit therefor Grant 5,252,954 - Nagata , et al. October 12, 1	1993-10-12
Apparatus and method for driving an optical printer having a liquid crystal optical switch Grant 5,095,376 - Umeda , et al. March 10, 1	1992-03-10
Time-sharing drive liquid crystal optical switch array and optical printer using this optical switch array Grant 4,783,149 - Umeda , et al. November 8, 1	1988-11-08
Printer utilizing optical switch elements Grant 4,769,659 - Umeda , et al. September 6, 1	1988-09-06
Multiplexed driving method for an optical switching element employing ferroelectric liquid crystal Grant 4,746,196 - Umeda , et al. May 24, 1	1988-05-24
Driving ferroelectric liquid crystal printers via short circuiting Grant 4,712,876 - Umeda , et al. December 15, 1	1987-12-15
Driving method and apparatus for optical printer with liquid-crystal switching element Grant 4,591,886 - Umeda , et al. May 27, 1	1986-05-27
Display panel having uniaxially-stretched organic polymer film as the substrate Grant 4,586,790 - Umeda , et al. May 6, 1	1986-05-06
Liquid crystal display device Grant 4,505,546 - Umeda , et al. March 19, 1	1985-03-19

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