PCT WO 2005/ A3

Transcription

1 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date (10) International Publication Number 14 April 2005 ( ) PCT WO 2005/ A3 (51) International Patent Classification : GOlL 1/12, (81) Designated States (unless otherwise indicated, for every 9/00, GOlK 13/08 kind of national protection available): AE, AG, AL, AM, AT,AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, (21) International Application Number: CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, PCT/IB2004/ GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, (22) International Filing Date: KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV,MA, MD, 29 September 2004 ( ) MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, (25) Filing Language: Italian PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, (26) Publication Language: English ZW (30) Priority Data: (84) Designated States (unless otherwise indicated, for every TO2003A October 2003 ( ) IT kind of regional protection available): ARIPO (BW, GH, TO2003A October 2003 ( ) IT GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), (71) Applicant (for all designated States except US): C.R.F. European (AT,BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, SOCIETA CONSORTILE PERAZIONI [IT/IT]; Strada FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, Torino, 50, Orbassano (IT). SI, SK, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, (72) Inventors; and GQ, GW, ML, MR, NE, SN, TD, TG). (75) Inventors/Applicants (for US only): PULLINI, Daniele Published: [IT/IT]; c/o C.R.F. Societa Consortile per Azioni, Strada with international search report Torino, 50, Orbassano (Torino) (IT). PERLO, Piero [IT/IT]; Via Chichignolo, 19, Sommariva (88) Date of publication of the international search report: Bosco (IT). 6 April 2006 (74) Agents: NOTARO, Giancarlo, et al; Buzzi, Notaro For two -letter codes and other abbreviations, refer to the "G uid & Antonielli d'oulx SrI, Via Maria Vittoria 18, ance Notes on Codes and Abbreviations" appearing at the beg in Torino (IT). ning of each regular issue of the PCT Gazette. (54) Title: MAGNETIC TRANSDUCTION SENSOR DEVICE, MANUFACTURING PROCESS AND DETECTION PROCESS THEREFORM (57) Abstract: Magnetic pressure sensor device, of the type comprising at least one magnetic layer ( 11) able to vary a magnetisation associated thereto in response to a pressure (P) exerted thereon. Said device (20; 30; 40; 50) comprises a plurality of layers ( 11, 12, 13, 14, 15, 16, 17) arranged in a stack, said magnetic layer (11) able to vary a magnetisation associated thereto in response to a pressure (P) comprising a free magnetic layer ( 11), able to be associated to a temporary magnetisation (MT), said free magnetic layer (11) belonging to said plurality of layers (11, 12, 13, 14, 15, 16, 17), which further comprises at least a spacer layer (13; 23; 33) and a permanent magnetic layer (12) associated to a permanent magnetisation (MP). Said sensor device (20) further comprises a compressible layer (21; 31; 42) and a layer with high magnetic coercivity (22; 32; 42) associated to said plurality of layers ( 11, 12, 13, 14, 15, 16, 17).

2 l atlonal Application No PCT/IB2004/ A. CLASSIFICATION OF SUBJECT MATTER, IPC 7 GOlLl/12 G01L9/00 G01K13/08 According Io International Patent Classification (IPC) or Io both national classification and IPC B. FIELDS SEARCHED Minimum documentation searched IPC 7 GOlL GOlK (classification system followed by classification symbols) Documentation searched other than minimum documentation to the extent that such documents are Included in the fields searched Electronic data base consulted during the international search (name of data base and where practical search terms used) EPO-Internal, INSPEC, PAJ C. DOCUMENTS CONSIDERED TO BE RELEVANT Category c Citation of document with indication where appropriate, of the relevant passages Relevant to claim No US B l (OLIVAS JOHN D ET AL) 1,10,24, 14 January 2003 ( ) 26 column 2, line 49 - line ,9, 14,15, 21,25 claims 1,3,9; figures 1,2 column 6, line 53 - line 58 column 5, line 57 - column 6, line 14 column 7, line 20 - line 35 12,13 -/-- Further documents are listed in the continuation of box C Patent family members are listed in annex Special categories of cited documents 1 T' later document published after the international filing date 1 or priority date and not in conflict with the application but A" document defining the general state of the art which is not cited to understand trie principle or theory underlying the considered to be of particular relevance Invention 1 E* earlier document but published on or after the international 'X* document of particular relevance, the claimed invention filing date cannot be considered novel or cannot be considered to 1 L" document which may throw doubts on prionty claim(s) or Involve an inventive step when the document is taken alone which Is cited to establish the publication date of another "Y - document of particular relevance, the claimed invention citation or other special reason (as specified) cannot be considered to involve an inventive step when the 1 O' document referring to an oral disclosure, use exhibition o r document is combined with one or more other such docu other means ments such combination being obvious to a person skilled 1 P" document published prior to the international filing date but in the art later than the priority date claimed '&' document member of the same patent family Date of the actual completion of the International search Date of mailing of the international search report 18 July Name and mailing address of the ISA European Patent Office P B 5818 Patentlaan 2 NL HV Ri swi k TeI (+31-70) , Tx epo nl. Fax (+31-70) Authorized officer Mucs, A Form POT/ISA/210 (second εhsβt) (January 2004)

3 lonal Application No rcr//ib2004/ C.(Contlnuation) DOCUMENTS CONSIDERED TO BE RELEVANT Category ' Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No EP A (ENIX CORPORATION) 2-4,9,25 26 April 1995 ( ) column 4, line 20 - line 35 figures 6-8 1,5,10 column 5, line 1 - line 5 column 8, line line 33 column 8, line 53 - column 9, line 10; figures 9 10 OLSON E.R. ET AL: "Integrating giant 14,15,21 magnetoresi stive current and thermal sensors in power electronic modules" APEC TH. ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION. MIAMI BEACH, FL, FEB. 9-13, 2003, ANNUAL APPLIED POWER ELECTRONICS CONFERENCE, NEW YORK, NY : IEEE, US, vol. 1, 9 February 2003 ( ), pages , XP NEW YORK page 774, paragraph B US B l (HILES MAURICE) 5,9,12 5 November 2002 ( ) column 6, line 35 - line 53 column 7, line 10 - line 18 PATENT ABSTRACTS OF JAPAN 14-23, vol. 013, no. 057 (P-825), 27,28 9 February 1989 ( ) 6 JP A (NIPPON SIGNAL CO LTDiTHE), 14 October 1988 ( ) abstract Form PCT/ISA/210 (continuation of second εhβθl) (January 2004)

4 ^ternational application No INTERNATIONAL SEARCH REPORT PCT/IB2004/ Box Il Observations where certain claims were found unsearchable (Continuation of item 2 of first sheet) This International Search Report has not been established in respect of certain claims under Article 17(2)(a) for the following reasons Claims Nos because they relate to subject matter not required to be searched by this Authority, namely Claims Nos because they relate to parts of the International Application that do not comply with the prescribed requirements to such an extent that no meaningful International Search can be carried out, specifically Claims Nos because they are dependent claims and are not drafted in accordance with the second and third sentences of Rule 6 4(a) Box III Observations where unity of invention is lacking (Continuation of item 3 of first sheet) This International Searching Authority found multiple inventions in this international application, as follows see additional sheet As all required additional search fees were timely paid by the applicant, this International Search Report covers all searchable claims As all searchable claims could be searched without effort justifying an additional fee, this Authority did not invite payment of any additional fee 3 LX v J As only some of the required additional search fees were timely paid by the applicant, this International Search Report covers only those claims for which fees were paid, specifically claims Nos 1-9, No required additional search fees were timely paid by the applicant Consequently, this International Search Report is restricted to the invention first mentioned in the claims, it is covered by claims Nos. Remark on Protest The additional search fees were accompanied by the applicant's protest n No protest accompanied the payment of additional search fees Form PCT/ISA/210 (continuation of first sheet (2)) (January 2004)

5 International Application No. PCT/I B2004 / FURTHER INFORMATION CONTINUED FROM PCT/ISA/ 210 This International Searching Authority found multiple (groups of) inventions in this international application, as follows: 1. claims: 1-10,12,13,24-26 a pressure sensor with a plurality of layers, at least one magnetic layer and a compressible layer. A process for manufacturing the same and a method to detect pressure. 2. claim: 1 1 a magnetic sensor associated to a pressure monitoring system of a tyre 3. claims: 14-23,27,28 a temperature sensing device with a plurality of layers, at least one magnetic layer a process of manufacturing the same and method to detect temperature.

6 'information on patent family members atlonal Application No / IB2004/ Patent document Publication Patent family Publication cited in search report date member(s) date US B l NONE EP JP B JP A DE D l DE T EP A l US A US B l AU A CA A l JP NONE Form PCT/ISA/210 (patent family annex) (January 2004)