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Extract from the Register of European Patents

EP About this file: EP0581259

EP0581259 - Image forming apparatus and light quantity control device for use in the image forming apparatus [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 21.10.2000 Database last updated on 24.04.2024
Most recent event Tooltip	28.12.2007	Lapse of the patent in a contracting state New state(s): IT	published on 30.01.2008 [2008/05]
Applicant(s)	For all designated states CANON KABUSHIKI KAISHA 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo / JP
	[N/P]
Former [1994/05]	For all designated states CANON KABUSHIKI KAISHA 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo / JP
Inventor(s)	01 / Sakata, Shirou c/o CANON K.K., 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP
	02 / Otaka, Koichi c/o CANON K.K., 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP
	03 / Takahashi, Masako c/o CANON K.K., 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP
	[1999/51]
Former [1994/05]	01 / Sakata, Shirou c/o CANON K.K., 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP
	02 / Otaka, Koichi c/o CANON K.K., 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP
	03 / Takashasi, Masako c/o CANON K.K., 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP
Representative(s)	Pellmann, Hans-Bernd, et al Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4-6 80336 München / DE
	[N/P]
Former [1994/08]	Pellmann, Hans-Bernd, Dipl.-Ing., et al Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4 D-80336 München / DE
Former [1994/05]	Pellmann, Hans-Bernd, Dipl.-Ing. Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4 D-80336 München / DE
Application number, filing date	93112042.2	28.07.1993
	[1994/05]
Priority number, date	JP19920202526	29.07.1992 Original published format: JP 20252692
	JP19920202527	29.07.1992 Original published format: JP 20252792
	JP19920202542	29.07.1992 Original published format: JP 20254292
	[1994/05]
Filing language	EN
Procedural language	EN
Publication	Type:	A2 Application without search report
	No.:	EP0581259
	Date:	02.02.1994
	Language:	EN
	[1994/05]
	Type:	A3 Search report
	No.:	EP0581259
	Date:	24.08.1994
	Language:	EN
	[1994/34]
	Type:	B1 Patent specification
	No.:	EP0581259
	Date:	22.12.1999
	Language:	EN
	[1999/51]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	11.07.1994
Classification	IPC:	G06K15/12	[1994/05]
	CPC:	G06K15/1214 (EP,US)
Designated contracting states	DE, FR, GB, IT [1994/05]
Title	German:	Bilderzeugungsgerät und Vorrichtung für die Steuerung der Lichtmenge zur Verwendung in diesem Gerät	[1994/05]
	English:	Image forming apparatus and light quantity control device for use in the image forming apparatus	[1994/05]
	French:	Dispositif de formation d'image et circuit de commande de la quantité de lumière utilisé dans ce dispositif	[1994/05]
Examination procedure	10.01.1995	Examination requested [1995/11]
	14.05.1997	Despatch of a communication from the examining division (Time limit: M06)
	13.11.1997	Reply to a communication from the examining division
	18.12.1997	Despatch of a communication from the examining division (Time limit: M06)
	23.06.1998	Reply to a communication from the examining division
	27.07.1998	Despatch of a communication from the examining division (Time limit: M04)
	03.12.1998	Reply to a communication from the examining division
	16.02.1999	Despatch of communication of intention to grant (Approval: Yes)
	25.06.1999	Communication of intention to grant the patent
	05.10.1999	Fee for grant paid
	05.10.1999	Fee for publishing/printing paid
Opposition(s)	23.09.2000	No opposition filed within time limit [2000/49]
Fees paid	Renewal fee
	25.07.1995	Renewal fee patent year 03
	31.07.1996	Renewal fee patent year 04
	29.07.1997	Renewal fee patent year 05
	28.07.1998	Renewal fee patent year 06
	27.07.1999	Renewal fee patent year 07
Opt-out from the exclusive Tooltip competence of the Unified Patent Court	See the Register of the Unified Patent Court for opt-out data
	Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition Tooltip	FR	22.12.1999
	IT	22.12.1999
	GB	28.07.2000
	[2008/05]
Former [2006/14]	FR	22.12.1999
	GB	28.07.2000
Former [2001/28]	FR	19.05.2000
	GB	28.07.2000
Former [2001/09]	FR	19.05.2000
Documents cited:	Search	[A]US4727382 (NEGISHI KIYOSHI [JP], et al) [A] 1,6,7,9 * column 1, line 67 - column 3, line 3; figures 1,6; claims 5,6,17 *;
		[A]US4879459 (NEGISHI KIYOSHI [JP]) [A] 1,5-7,9 * column 1, line 47 - line 68; figure 1 *;
		[A]US4912714 (HATANAKA KAZUOMI [JP], et al) [A] 1,5-7,9 * column 3, line 13 - line 59; claim 1 *;
		[A]US4463364 (TAMURA YASUYUKI [JP]) [A] 1,6,7,9 * claims 1,2 *;
		[A]EP0358171 (CANON KK [JP]) [A] 1,6,7,9 * figures 1,2; claim 1 *

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