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Extract from the Register of European Patents

EP About this file: EP1491502

EP1491502 - A method for producing nanoparticles through size-selective photoetching [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  27.01.2012
Database last updated on 22.01.2025
Most recent event   Tooltip27.01.2012No opposition filed within time limitpublished on 29.02.2012  [2012/09]
Applicant(s)For all designated states
Hitachi Solutions, Ltd.
4-12-7, Higashishinagawa Shinagawa-ku
Tokyo 140-0002 / JP
[2011/08]
Former [2005/01]For all designated states
Hitachi Software Engineering Co., Ltd.
1-43, Suehiro-cho 1-chome, Tsurumi-ku
Yokohama-shi, Kanagawa 230-0045 / JP
Inventor(s)01 / Sato, Keiichi c/o Hitachi Software Engineering Co., Ltd.
4-12-7, Higashihinagawa, Shinagawa-ku
Tokyo 140-0002 / JP
02 / Kuwabata, Susumu c/o Department.of Materials Chemistry Graduate
School of Engineering, Osaka University, 2-1 Yamada-oka
Suita-shi, Osaka 565-0871 / JP
03 / Torimoto, Tsukasa
1-3-109, N9W16, Chuo-ku
Sapporo-shi, Hokkaido 060-0009 / JP
 [2010/42]
Former [2005/01]01 / Sato, Keiichi Hitachi Software Engineer.Co.Ltd.
4-12-7, Higashihinagawa Shinagawa-ku
Tokyo 140-0002 / JP
02 / Kuwabata, Susumu Dpt of Mat.Chemi.Grad. School
Engineering,Osaka Uni. 2-1 Yamada-oka
Suita-shi Osaka 565-0871 / JP
03 / Torimoto, Tsukasa
1-3-109, N9W16 Chuo-ku
Sapporo-shi Hokkaido 060-0009 / JP
Representative(s)Liesegang, Roland
Boehmert & Boehmert
Anwaltspartnerschaft mbB
Pettenkoferstrasse 22
80336 München / DE
[N/P]
Former [2005/01]Liesegang, Roland, Dr.-Ing.
FORRESTER & BOEHMERT Pettenkoferstrasse 20-22
80336 München / DE
Application number, filing date04012329.125.05.2004
[2005/01]
Priority number, dateJP2003015497730.05.2003         Original published format: JP 2003154977
[2005/01]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP1491502
Date:29.12.2004
Language:EN
[2004/53]
Type: A3 Search report 
No.:EP1491502
Date:25.10.2006
[2006/43]
Type: B1 Patent specification 
No.:EP1491502
Date:23.03.2011
Language:EN
[2011/12]
Search report(s)(Supplementary) European search report - dispatched on:EP22.09.2006
ClassificationIPC:C01G11/02, C01G1/12, C01G1/02, C01G1/00, C09K11/56
[2006/42]
CPC:
B82Y30/00 (EP,US); C01G1/00 (EP,US); C01G1/02 (EP,US);
C01G1/12 (EP,US); C01G11/02 (EP,US); C09K11/02 (EP,US);
C09K11/565 (EP,US); C01P2002/84 (EP,US); C01P2004/64 (EP,US);
Y10S977/895 (EP,US); Y10T428/2982 (EP,US) (-)
Former IPC [2005/01]C01G11/02, C01G1/12, C01G1/02, C01G1/00
Designated contracting statesDE,   FR,   GB [2007/27]
Former [2005/01]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HU,  IE,  IT,  LI,  LU,  MC,  NL,  PL,  PT,  RO,  SE,  SI,  SK,  TR 
TitleGerman:Verfahren zur Herstellung von Nanopartikeln durch grössenspezifische Photoätzung[2005/01]
English:A method for producing nanoparticles through size-selective photoetching[2005/01]
French:Procédé de préparation de particules nanométriques par gravure photo[2005/01]
Examination procedure25.05.2004Examination requested  [2004/53]
14.05.2007Despatch of a communication from the examining division (Time limit: M04)
24.09.2007Reply to a communication from the examining division
09.03.2010Despatch of a communication from the examining division (Time limit: M04)
28.06.2010Reply to a communication from the examining division
06.10.2010Communication of intention to grant the patent
26.01.2011Fee for grant paid
26.01.2011Fee for publishing/printing paid
Opposition(s)27.12.2011No opposition filed within time limit [2012/09]
Fees paidRenewal fee
10.05.2006Renewal fee patent year 03
14.05.2007Renewal fee patent year 04
28.03.2008Renewal fee patent year 05
12.05.2009Renewal fee patent year 06
31.03.2010Renewal fee patent year 07
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Documents cited:Search[DX]  - T. TORIMOTO, H. NISHIYAMA, T. SAKATA, H. MORI, H. YONEYAMA, "Characteristic Features of Size-Selective Photoetching of CdS Nanoparticles as a Means of Preparation of Monodisperse Particles", J. ELECTROCHEM. SOC., (1998), vol. 145, no. 6, pages 1964 - 1968, XP002398568 [DX] 1,6 * paragraphs [EXPERIMENTAL] , [EFFECT] , [00OF] , [00PH]; figures 4,6 *

DOI:   http://dx.doi.org/10.1149/1.1838583
 [X]  - L. SPANHEL, M. HAASE, H. WELLER, A. HENGLEIN, "Photochemistry of Colloidal Semiconductors. 20. Surface Modification and Stability of Strong Luminescing CdS Particles.", J. AM. CHEM. SOC., (1987), vol. 109, pages 5649 - 5655, XP002398569 [X] 1-7 * paragraph [EXPERIMENTAL]; figures 2,3 *

DOI:   http://dx.doi.org/10.1021/ja00253a015
by applicant   - SPANHEL ET AL., J. AM. CHEM. SOC., (1987), vol. 109, pages 5649 - 5655
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.