Deutsch English Français

Contact

EP0234289

European procedure

Quick help

Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...

News flashes

Italy joins the Federated Register

Click here for more information on the Federated Register.

2025-06-12

More...

Extract from the Register of European Patents

EP About this file: EP0234289

EP0234289 - Half-tone display device and method for a flat matrix type display [Right-click to bookmark this link]
Former [1987/36]	Half-tone display system for a flat matrix type cathode-ray tube
	[1994/15]
Status	No opposition filed within time limit Status updated on 16.02.1995 Database last updated on 11.04.2026
Most recent event Tooltip	16.02.1995	No opposition filed within time limit	published on 05.04.1995 [1995/14]
Applicant(s)	For all designated states MITSUBISHI DENKI KABUSHIKI KAISHA 2-3, Marunouchi 2-chome Chiyoda-ku Tokyo 100 / JP
	[N/P]
Former [1987/36]	For all designated states MITSUBISHI DENKI KABUSHIKI KAISHA 2-3, Marunouchi 2-chome Chiyoda-ku Tokyo 100 / JP
Inventor(s)	01 / Hara, Zenichirou c/o Mitsubishi Denki K.K. Nagasaki Works No. 6-14 Maruo-machi Nagasaki-shi Nagasaki / JP
	[1987/36]
Representative(s)	Lehn, Werner, et al Hoffmann Eitle, Patent- und Rechtsanwälte, Postfach 81 04 20 81904 München / DE
	[N/P]
Former [1987/36]	Lehn, Werner, Dipl.-Ing., et al Hoffmann, Eitle & Partner, Patentanwälte, Postfach 81 04 20 D-81904 München / DE
Application number, filing date	87100910.6	23.01.1987
	[1987/36]
Priority number, date	JP19860014095	24.01.1986 Original published format: JP 1409586
	[1987/36]
Filing language	EN
Procedural language	EN
Publication	Type:	A2 Application without search report
	No.:	EP0234289
	Date:	02.09.1987
	Language:	EN
	[1987/36]
	Type:	A3 Search report
	No.:	EP0234289
	Date:	07.03.1990
	Language:	EN
	[1990/10]
	Type:	B1 Patent specification
	No.:	EP0234289
	Date:	13.04.1994
	Language:	EN
	[1994/15]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	18.01.1990
Classification	IPC:	H04N3/12	[1987/36]
	CPC:	H04N3/122 (EP,US)
Designated contracting states	CH, DE, FR, GB, LI [1987/36]
Title	German:	Halbton-Anzeigevorrichtung und -methode für eine flache Matrix-Anzeige	[1994/15]
	English:	Half-tone display device and method for a flat matrix type display	[1994/15]
	French:	Dispositif et méthode d'affichage en demi-teinte pour un affichage du type matriciel	[1994/15]
	Former [1987/36]	Halbton-Anzeigevorrichtung für eine flache Matrix-Kathodenstrahlröhre
	Former [1987/36]	Half-tone display system for a flat matrix type cathode-ray tube
	Former [1987/36]	Dispositif d'affichage en demi-teinte pour un tube à rayons cathodiques du type matriciel
Examination procedure	19.04.1990	Examination requested [1990/24]
	24.02.1992	Despatch of a communication from the examining division (Time limit: M06)
	04.08.1992	Reply to a communication from the examining division
	10.12.1992	Despatch of a communication from the examining division (Time limit: M06)
	22.04.1993	Reply to a communication from the examining division
	11.08.1993	Despatch of communication of intention to grant (Approval: Yes)
	18.10.1993	Communication of intention to grant the patent
	28.12.1993	Fee for grant paid
	28.12.1993	Fee for publishing/printing paid
Opposition(s)	14.01.1995	No opposition filed within time limit [1995/14]
Fees paid	Renewal fee
	31.01.1989	Renewal fee patent year 03
	31.01.1990	Renewal fee patent year 04
	27.12.1990	Renewal fee patent year 05
	30.01.1992	Renewal fee patent year 06
	29.01.1993	Renewal fee patent year 07
	31.01.1994	Renewal fee patent year 08
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.
Documents cited:	Search	[AP] JP59043404
		[A] EP0107018 (SIEMENS AG et al.) [A]
		[A] EP0150991 (SONY CORP et al.) [A]
		[AP] PATENT ABSTRACTS OF JAPAN, vol. 10, no. 27 (E-378), 4th February 1986; & JP-A-59 043 404 (MATSUSHITA DENKI SANGYO K.K.) 24-09-1985 [AP]
		[A] FUNKSCHAU, vol. 57, no. 6, March 1985, page 10, Munich, DE; "Flacher Bildschirm mit flauem Bild" [A]

The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.