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Extract from the Register of European Patents

EP About this file: EP0257489

EP0257489 - Method for generating a sound wave by utilizing electron rays etc., and optical device for controlling a light by an elastic wave generated by said method [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  04.06.1993
Database last updated on 11.09.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
CANON KABUSHIKI KAISHA
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
[N/P]
Former [1988/09]For all designated states
CANON KABUSHIKI KAISHA
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
Inventor(s)01 / Nakamura, Kenji
404, Lions-Mansion, 1176-1 Tsurumaki
Hadano-shi Kanagawa-ken / JP
02 / Kan, Fumitaka
28-25, Haginaka 3-chome
Ohta-ku Tokyo / JP
03 / Hayakawa, Naoji
A-404, Highness-Aobadai 25-9 Sakuradai
Midori-ku Yokohama-shi Kanagawa-ken / JP
04 / Takenouchi, Masanori
A-202, Corp-Irisawa 4-8, Tamura-cho
Atsugi-shi Kanagawa-ken / JP
05 / Shimoda, Isamu
93-1, Tatsunodai
Zama-shi Kanagawa-ken / JP
06 / Okunuki, Masahiko
182-8, Takao Itsukaichi-cho
Tama-gun Tokyo / JP
[1988/09]
Representative(s)Tiedtke, Harro, et al
Patentanwaltsbüro
Tiedtke-Bühling-Kinne & Partner
Bavariaring 4
80336 München / DE
[N/P]
Former [1992/04]Tiedtke, Harro, Dipl.-Ing., et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
D-80336 München / DE
Former [1988/09]Grupe, Peter, Dipl.-Ing.
Patentanwaltsbüro Tiedtke-Bühling-Kinne-Grupe-Pellmann-Grams-Struif-Winter-Roth Bavariaring 4
D-80336 München / DE
Application number, filing date87111828.714.08.1987
[1988/09]
Priority number, dateJP1986019185415.08.1986         Original published format: JP 19185486
JP1986019186015.08.1986         Original published format: JP 19186086
JP1986019186115.08.1986         Original published format: JP 19186186
[1988/09]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0257489
Date:02.03.1988
Language:EN
[1988/09]
Search report(s)(Supplementary) European search report - dispatched on:EP15.12.1987
ClassificationIPC:G02F1/33, G10K15/00, H01J37/30, G02B6/12
[1988/09]
CPC:
G02B6/12004 (EP); G02F1/335 (EP); G10K15/04 (EP)
Designated contracting statesDE,   FR,   GB [1988/09]
TitleGerman:Verfahren zum Erzeugen von Schallwellen mittels Elektrodenstrahlen etc. und optische Vorrichtung zum Steuern von Licht mittels einer durch das Verfahren erzeugten elastischen Welle[1988/09]
English:Method for generating a sound wave by utilizing electron rays etc., and optical device for controlling a light by an elastic wave generated by said method[1988/09]
French:Procédé pour engendrer des ondes sonores par faisceaux électroniques etc. et dispositif optique de contrôle de la lumière utilisant une onde élastique engendrée par ce procédé[1988/09]
File destroyed:12.06.1999
Examination procedure27.07.1988Examination requested  [1988/38]
16.11.1990Despatch of a communication from the examining division (Time limit: M04)
20.03.1991Reply to a communication from the examining division
25.04.1991Despatch of a communication from the examining division (Time limit: M06)
04.11.1991Reply to a communication from the examining division
17.03.1992Despatch of a communication from the examining division (Time limit: M06)
18.09.1992Reply to a communication from the examining division
25.02.1993Despatch of communication that the application is refused, reason: substantive examination [1993/30]
07.03.1993Application refused, date of legal effect [1993/30]
Fees paidRenewal fee
22.08.1989Renewal fee patent year 03
23.08.1990Renewal fee patent year 04
21.12.1990Renewal fee patent year 05
27.08.1992Renewal fee patent year 06
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Documents cited:Search[X]DE2732855  ;
 [X]US3532181  ;
 [Y]US4259678  ;
 [A]US4348075
 [A]  - L. LEVI "Applied Optics, A Guide to Optical System Design", vol. 2, 1980 JOHN WILEY & SONS, New York pages 275-282, chapters 14.2.4.1, 14.2.4.2, 14.2.4.3
 [A]  - H.J. EICHLER et al. "Laser-induced Dynamic Gratings", Springer Series in Optical Sciences, vol. 50, 1986 SPRINGER-VERLAG, Berlin, Heidelberg, pages 140-143, chapter 5.3
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.