SC 13G 1 l92668bsc13g.txt BANK ONE CORP/BEI MEDICAL SYSTEMS CO. SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. )* BEI MEDICAL SYSTEMS COMPANY, INC. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 05538E109 -------------------------------------------------------------------------------- (CUSIP Number) 12/31/01 -------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ X ] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). SCHEDULE 13G CUSIP NO. 05538E109 ------------------------------------------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS. I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) BANK ONE CORPORATION, I.R.S. NO. 31-0738296 ------------------------------------------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] ------------------------------------------------------------------------------------------------------------------- (3) SEC USE ONLY ------------------------------------------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Illinois ------------------------------------------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 506,668 SHARES ----------------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 0 OWNED BY ----------------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 506,668 REPORTING ----------------------------------------------------------------------- PERSON (8) SHARED DISPOSITIVE POWER 0 WITH: ------------------------------------------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 506,668 ------------------------------------------------------------------------------------------------------------------- (10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] ------------------------------------------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.2% ------------------------------------------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) HC -------------------------------------------------------------------------------------------------------------------

SCHEDULE 13G Item 1 (a). Name of Issuer: BEI MEDICAL SYSTEMS COMPANY, INC Item 1 (b). Address of Issuer's Principal Executive Offices: 100 Hollister Road Teterboro, NJ 07608 Item 2 (a). Name of Person Filing: BANK ONE CORPORATION Item 2 (b). Address of Principal Office or, if none, Residence: One First National Plaza Chicago, IL 60670 Item 2 (c). Citizenship: Not Applicable. Item 2 (d). Title of Class of Securities: Common Stock Item 2 (e). CUSIP Number: 05538E109 Item 3. If this Statement is Filed Pursuant to Rules 240.13d-1 (b), or 240.13d-2 (b) or (c), check whether the person filing is a: (a) [ ] Broker or dealer registered under Section 15 of the Act; (b) [ ] Bank as defined in section 3(a)(6) of the Act; (c) [ ] Insurance company as defined in section 3(a)(19) of the Act; (d) [ ] Investment company registered under section 8 of the Investment Company Act; (e) [ ] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E); (f) [ ] An employee benefit plan or endowment fund in accordance with Section 240.13d-1(b)(1)(ii)(F); (g) [ X ] A parent holding company or control person in accordance with Section 240.13d-1(b)(ii)(G); (h) [ ] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); (i) [ ] A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3); (j) [ ] Group, in accordance with Section 240.13d-1(b)(1)(ii)(J). If this statement is filed pursuant to Rule 13d-1(c), check this box. [ ]

SCHEDULE 13G Item 4. Ownership: (a) Amount Beneficially Owned: 506,668 (b) Percent of Class: 5.2% (c) Number of shares as to which the person has: (i) sole power to vote or direct the vote: 506,668 (ii) shared power to vote or direct the vote: 0 (iii) sole power to dispose or direct the disposition of: 506,668 (iv) shared power to dispose or direct the disposition of: 0 Item 5. Ownership of Five Percent or Less of a Class. If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following: [ ] Item 6. Ownership of More Than Five Percent on Behalf of Another Person. Not Applicable. Item 7. Identification and Classification of the Subsidiary which acquired the Security being Reported on by the Parent Holding Company. Banc One Equity Capital SBIC Fund II, L.L.C. Item 8. Identification and Classification of Members of the Group. Not Applicable. Item 9. Notice of Dissolution of Group. Not Applicable.

SCHEDULE 13G Item 10. Certification. By signing below, I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. Signature. After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 13, 2002 BANK ONE CORPORATION By: /s/ David J. Kundert ----------------------------------------------------- Name: David J. Kundert Title: Executive Vice President

BEI MEDICAL SYSTEMS CO INC /DE/ SC 13G