Koizumi; Masumi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Koizumi; Masumi.The latest application filed is for "composite semiconductor device, print head and image forming apparatus".

Company Profile

0.11.5

Koizumi; Masumi - Tokyo JP
Koizumi; Masumi - Hachioji JP
Koizumi; Masumi - Kawasaki 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
Composite semiconductor device, print head and image forming apparatus Grant 8,130,253 - Ohkawa , et al. March 6, 2	2012-03-06
LED array, LED head and image recording apparatus Grant 7,847,304 - Taninaka , et al. December 7, 2	2010-12-07
Composite semiconductor device, print head and image forming apparatus App 20090322852 - Ohkawa; Kazuya ; et al.	2009-12-31
Led Array, Led Head And Image Recording Apparatus App 20070228397 - Taninaka; Masumi ; et al.	2007-10-04
Light-emitting-element array Grant 6,858,875 - Hamano , et al. February 22, 2	2005-02-22
Semiconductor array device with single interconnection layer Grant 6,781,246 - Fujiwara , et al. August 24, 2	2004-08-24
Light-emitting-element array App 20040021145 - Hamano, Hiroshi ; et al.	2004-02-05
Semiconductor array device with single interconnection layer App 20040021146 - Fujiwara, Hiroyuki ; et al.	2004-02-05
Opto-electronic device with self-aligned ohmic contact layer Grant 6,541,796 - Nobori , et al. April 1, 2	2003-04-01
Opto-electronic device with self-aligned ohmic contact layer App 20010054716 - Nobori, Masaharu ; et al.	2001-12-27
Organic electroluminescent light-emitting array and optical head assembly Grant 6,297,842 - Koizumi , et al. October 2, 2	2001-10-02
End face light emitting type light emitting diode Grant 5,955,748 - Nakamura , et al. September 21, 1	1999-09-21
Diffusion mask and fabrication method for forming pn-junction elements in a compound semiconductor substrate Grant 5,700,714 - Ogihara , et al. December 23, 1	1997-12-23
Low-shrinkage polyester film and preparation thereof Grant 5,093,064 - Utsumi , et al. * March 3, 1	1992-03-03
Biaxially oriented polyester film for use in floppy disc Grant 5,087,526 - Tomitaka , et al. February 11, 1	1992-02-11
Thin-film transistor matrix for active matrix display panel with alloy electrodes Grant 5,070,379 - Nomoto , et al. December 3, 1	1991-12-03

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.