Kitajima; Shigeki

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kitajima; Shigeki.The latest application filed is for "authentication information registration system".

Company Profile

0.17.13

Kitajima; Shigeki - Kawasaki JP
Kitajima; Shigeki - Tokyo JP
Kitajima, Shigeki - Kawasaki-shi JP
Kitajima; Shigeki - Kokubunji 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
Authentication Information Registration System App 20090197571 - Kitajima; Shigeki ; et al.	2009-08-06
Electronic Advertisement System App 20090132367 - HAMADA; Takuji ; et al.	2009-05-21
Optical switching apparatus and optical communication network system Grant 7,356,257 - Kitajima , et al. April 8, 2	2008-04-08
Character Display Method App 20070283255 - Kina; Sadayuki ; et al.	2007-12-06
Optical crossconnect apparatus and optical transmission system Grant 7,272,314 - Fukashiro , et al. September 18, 2	2007-09-18
Optical protection switching using 2 by 2 switching functions Grant 7,242,860 - Ikeda , et al. July 10, 2	2007-07-10
Optical switching apparatus, optical transmission system and method of setting up for optical signal route Grant 7,206,475 - Kakizaki , et al. April 17, 2	2007-04-17
Optical transmission apparatus and optical systems Grant 7,194,205 - Tsushima , et al. March 20, 2	2007-03-20
Optical switching apparatus and optical communication network system App 20050281556 - Kitajima, Shigeki ; et al.	2005-12-22
Optical switching apparatus and optical communication network system Grant 6,933,852 - Kitajima , et al. August 23, 2	2005-08-23
Optical switching apparatus, optical transmission system and method of setting up for optical signal route App 20050031346 - Kakizaki, Sunao ; et al.	2005-02-10
Optical crossconnect apparatus and optical transmission system App 20050025481 - Fukashiro, Yasuyuki ; et al.	2005-02-03
Optical switching apparatus, optical transmission system and method of setting up for optical signal route Grant 6,839,480 - Kakizaki , et al. January 4, 2	2005-01-04
Optical crossconnect apparatus and optical transmission system Grant 6,813,445 - Fukashiro , et al. November 2, 2	2004-11-02
Optical transmission apparatus and optical systems App 20040179839 - Tsushima, Hideaki ; et al.	2004-09-16
Optical switching apparatus, optical transmission system and method of setting up for optical signal route Grant 6,778,725 - Kakizaki , et al. August 17, 2	2004-08-17
Optical transmission apparatus and optical systems Grant 6,731,874 - Tsushima , et al. May 4, 2	2004-05-04
Optical switching apparatus, optical transmission system and method of setting up for optical signal route App 20040081460 - Kakizaki, Sunao ; et al.	2004-04-29
Optical protection switching using 2 by 2 switching functions App 20040076427 - Ikeda, Hiroki ; et al.	2004-04-22
Optical switching apparatus and optical communication network system App 20030128979 - Kitajima, Shigeki ; et al.	2003-07-10
Optical transmission apparatus and optical systems App 20020176142 - Tsushima, Hideaki ; et al.	2002-11-28
Optical crossconnect apparatus and optical transmission system App 20020093712 - Fukashiro, Yasuyuki ; et al.	2002-07-18
Optical crossconnect apparatus and optical transmission system Grant 6,362,905 - Fukashiro , et al. March 26, 2	2002-03-26
Optical cross-connect system and optical transmission system Grant 6,317,230 - Kitajima , et al. November 13, 2	2001-11-13
Optical cross-connect system and optical transmission system App 20010033403 - Kitajima, Shigeki ; et al.	2001-10-25
Fault restoration control method and it's apparatus in a communication network Grant 6,304,346 - Sawada , et al. October 16, 2	2001-10-16
Optical intensity and phase modulators in an optical transmitter apparatus Grant 5,515,196 - Kitajima , et al. May 7, 1	1996-05-07
Information transmission system with variable transmission rate Grant 5,515,368 - Saito , et al. May 7, 1	1996-05-07
Homodyne optical receiver equipment Grant 5,323,258 - Tsushima , et al. June 21, 1	1994-06-21
Optical tuning method and apparatus suitable for selective reception of optical frequency division multiplex signals Grant 5,144,467 - Kitajima , et al. September 1, 1	1992-09-01

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.