SC 13G

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

SUCAMPO PHARMACEUTICALS, INC.

(Name of Issuer)

Class A Common Stock

(Title of Class of Securities)

864909106

(CUSIP Number)

December 31, 2007

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

o Rule 13d-1(b)

o Rule 13d-1(c)

x Rule 13d-1(d)

Check the following box if a fee is being paid with this statment.  o

CUSIP No. 864909106
	1.	Names of Reporting Persons I.R.S. Identification No. of Above PersonR-TECH UENO, LTD.  98-0394288
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)		o
		(b)		o
	3.	SEC Use Only
	4.	Citizenship or Place of Organization JAPAN
Number of Shares Beneficially Owned by Each Reporting Person With			5.		Sole Voting Power 2,485,150
			6.		Shared Voting Power 0
			7.		Sole Dispositive Power 2,485,150
			8.		Shared Dispositive Power 0
	9.	Aggregate Amount Beneficially Owned by Each Reporting Person 2,485,150
	10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o
	11.	Percent of Class Represented by Amount in Row (9) 16.0%
	12.	Type of Reporting Person (See Instructions) CO

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Item 1.
	(a)	Name of Issuer SUCAMPO PHARMACEUTICALS, INC.
	(b)	Address of Issuer’s Principal Executive Offices 4520 EAST-WEST HIGHWAY SUITE 300 BETHESDA, MD 20814
Item 2.
	(a)	Name of Person Filing R-TECH UENO, LTD.
	(b)	Address of Principal Business Office or, if none, Residence 10F, YAMATO LIFE INSURANCE BLDG.  1-1-7 UCHISAIWAICHO, CHIYODA-KU TOKYO 100-0011, JAPAN
	(c)	Citizenship JAPAN
	(d)	Title of Class of Securities CLASS A COMMON STOCK
	(e)	CUSIP Number 864909106
Item 3.	If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
	(a)	o	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
	(b)	o	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
	(c)	o	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
	(d)	o	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
	(e)	o	An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

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(f)	o	An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);
(g)	o	A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G);
(h)	o	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	o	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)	o	Group, in accordance with §240.13d-1(b)(1)(ii)(J).
Not Applicable.

Item 4.	Ownership
Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.
	(a)	Amount beneficially owned: 2,485,150
	(b)	Percent of class:    16.0%
	(c)	Number of shares as to which the person has:
		(i)	Sole power to vote or to direct the vote    2,485,150
		(ii)	Shared power to vote or to direct the vote     0
		(iii)	Sole power to dispose or to direct the disposition of    2,485,150
		(iv)	Shared power to dispose or to 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   o. Not Applicable
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 or Control Person
Not Applicable

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Item 8.	Identification and Classification of Members of the Group
Not Applicable
Item 9.	Notice of Dissolution of Group
Not Applicable
Item 10.	Certification
Not Applicable

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 14, 2008	R-TECH UENO, LTD.
	By:	/s/ Douglas W. Charnas
	Name:	Douglas W. Charnas
	Its:	Attorney In Fact

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EX-99.1

Exhibit 99.1

POWER OF ATTORNEY

KNOW ALL MEN BY THIS PRESENT that the undersigned officer or director of R-TECH UENO, Ltd., a Japanese corporation (the “Company”), hereby constitutes and appoints Douglas W. Charnas her true and lawful attorney-in-fact and agent with full power of substitution and resubstitution, for her and in her name, place and stead, in any and all capacities, to sign and file a statement on Schedule 13G with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, reporting ownership by the Company of securities issued by Sucampo Pharmaceuticals, Inc., with power to sign and file any amendment or amendments, including post-effective amendments thereto, with all exhibits thereto and any and all other documents in connection therewith, hereby granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary or desirable to be done in and about the premises, as fully to all intents and purposes as she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 14th day of February, 2008.

/s/ Yukiko Hashitera

Yukiko Hashitera

Representative Director