EP1291299A1 - Isolierbehälter - Google Patents

Isolierbehälter Download PDF

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Publication number
EP1291299A1
EP1291299A1 EP02019187A EP02019187A EP1291299A1 EP 1291299 A1 EP1291299 A1 EP 1291299A1 EP 02019187 A EP02019187 A EP 02019187A EP 02019187 A EP02019187 A EP 02019187A EP 1291299 A1 EP1291299 A1 EP 1291299A1
Authority
EP
European Patent Office
Prior art keywords
heat
insulating container
sidewall portion
cylindrical sidewall
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02019187A
Other languages
English (en)
French (fr)
Inventor
Masahiko Tanaka
Yasuo Kyowa Hakko Kogyo Co. Ltd. SAKAI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KH Neochem Co Ltd
Original Assignee
Kyowa Hakko Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyowa Hakko Kogyo Co Ltd filed Critical Kyowa Hakko Kogyo Co Ltd
Publication of EP1291299A1 publication Critical patent/EP1291299A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3802—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container in the form of a barrel or vat
    • B65D81/3804—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container in the form of a barrel or vat formed of foam material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/08—Containers of variable capacity
    • B65D21/083—Containers of variable capacity by means of additional elements, e.g. modular

Definitions

  • the present invention relates to a heat-insulating container and more particularly to a heat-insulating container suitable for the storage or distribution of articles or substances such as, e.g., an enzyme, coenzyme or reagent whose temperature must be controlled below a predetermined temperature for a long time.
  • articles or substances such as, e.g., an enzyme, coenzyme or reagent whose temperature must be controlled below a predetermined temperature for a long time.
  • Heat-insulating containers made of synthetic resin foams are known.
  • Japanese Published Unexamined Patent Application No.159271/2000 discloses a heat-insulating container made of a synthetic resin foam, comprising a box-shaped container body, a cold insulator and a lid.
  • the cold insulator can be accommodated in the internal peripheral walls of the lid and container body, such that the condensation formed on the cold insulator does not drop on a stored product.
  • Registered Japanese Utility Model No. 3058267 discloses a heat-insulating container comprising a close-bottomed cylindrical container body made of a synthetic resin foam, and a synthetic resin foam lid rotatably attached to the opening portion of the container body.
  • heat-insulating containers made of a synthetic resin foam are generally box-shaped, as is the one disclosed in the above-mentioned Japanese Published Unexamined Patent Application No.159271/2000.
  • the weight of the container may be so heavy that it cannot be transported manually.
  • the container body is in most cases made of an integral molding of a synthetic resin foam. Accordingly, the entire volume of the container covered by the lid is the same regardless of whether it is actually being used as a heat-insulating container or when being transported or stored merely as a container without any contents, thus securing a space for the container is a problem when it is not in use.
  • the container disclosed in Registered Japanese Utility Model No. 3058267 is cylindrically shaped, so that it can be rolled via its peripheral edge portion and thus can be transported by hand relatively easily when it is heavy.
  • the container body is integrally molded, the container has the same problems as those of the box-shaped container with regard to the securing of storage space and manufacturing cost.
  • the containers made of a synthetic resin foam are not as strong as containers or drums made of non-expanded resin, metal or reinforced paper. Although the synthetic resin foam containers are superior in heat insulation properties, they are not hardy enough to withstand long-distance transportation by air, sea or land.
  • the heat-insulating container of the present invention basically comprises a disc-shaped upper lid, a disc-shaped lower lid, and a cylindrical sidewall portion which are all made of a synthetic resin foam, wherein the cylindrical sidewall portion is a structural member made up of two or more separate, circumferentially divided pieces.
  • the main body portion of the container is assembled by attaching the disc-shaped lower lid to the cylindrical sidewall portion. If necessary, the joints are affixed with an adhesive tape.
  • An item to be heat-insulated and a refrigerant such as dry ice are placed in the container, which is then covered by the disc-shaped upper lid and, if necessary, the circumferential surface of the container is attached with an adhesive tape, thereby producing a distribution or storage package utilizing the heat-insulating container of the present invention.
  • the heat-insulating container of the present invention is generally cylindrical in shape, it can be easily transported by rolling on its circular edge even if the contains is heavy. Further, the cylindrical sidewall portion, which forms the main body portion, can be divided into a plurality of separate pieces, so that the heat-insulating container, when not being used as such, requires less space for transportation or storage. Even if the cylindrical sidewall portion is large, the individual separate pieces can be relatively small, so that their molding requires less time than in the case of making the container as an integrally formed article. In addition, molded parts can be cut out of the molds more satisfactorily, and also the material can be poured into the mold cavities more satisfactorily. Thus, efficiency of molding can be improved while reducing costs, and the space required for storing the molds can also be reduced.
  • each separate piece which make up the cylindrical sidewall portion is combined via abutting surfaces formed on each separate piece such that a convex portion formed on one surface engages a concave portion formed on the other surface.
  • the circumferential length of each separate piece is set such that no two abutting portions are located simultaneously in a vertical virtual plane slicing a center line of the cylinder.
  • the embodiment can reliably prevent the separation of the abutting surfaces of the separate pieces on the opposite side and the possible loss of air-tightness.
  • the cylindrical sidewall portion comprises a rib protruding radially inwardly, and a central bedding with such dimensions as to be locked by the rib.
  • the central bedding is preferably formed with a number of holes for circulating cold air.
  • a bedding with legs may be placed on the disc-shaped lower lid, in which case a heat-insulated item can be placed on the bedding. This facilitates the circulation of cold air effectively, further improving the cooling efficiency.
  • two central beddings may be provided in two stages, so that the refrigerant such as dry ice may be placed between them. In this case, different cooling environments can be created for spaces above and below the refrigerant.
  • the cylindrical sidewall portion is further divided into two or more stages along the center line.
  • the height of the cylindrical sidewall portion can be selectively set according to the type or size of the heat-insulated item that is accommodated.
  • a useless cooling space can be eliminated and the cooling efficiency can be improved.
  • multiple central beddings can be easily placed in multiple stages at intermediate positions.
  • the type of synthetic resin foam is not particularly limited.
  • examples include a polystyrene resin, a polypropylene resin, a polyethylene resin, a polyester resin, and a polyurethane resin.
  • the individual components are preferably internal mold foam articles produced by using prefoamed particles of a polystyrene resin.
  • the expansion factor can be determined by taking into consideration the desired heat-insulating performance, container weight, etc, but it should be in the range of from 20 to 100, preferably from 30 to 60.
  • the heat-insulating container is equipped with a cylindrical container protector for protecting the heat-insulating container from external shock.
  • the container protector may be made of any materials such as, e.g., reinforced paper, resin and metals, as long as they can provide a required strength. However, paper should preferably be used, for it can easily be disposed of.
  • the container protector comprises an open-top container body and a lid.
  • a heat-insulating container containing a heat-insulated item is then housed in the container body, the lid is placed, followed by sealing the joints by an adhesive tape, for example.
  • the thus protected heat-insulating container is highly resistant to external shocks and can withstand a long-distance transportation by air, sea or land.
  • the heat-insulating container in this embodiment of the present invention can be suitably used, e.g., for transporting abroad an item in a heat-insulated condition, such items including enzymes, coenzymes and reagents whose temperature must be controlled below a certain temperature for a long time during storage or distribution.
  • FIGs. 1A and 1B show a plan view and a side elevational view, respectively, of an assembled heat-insulating container 1.
  • FIGs. 2A and 2B show a sectional view taken along the line a-a of FIG. 1A and a sectional view taken along the line b-b of FIG. 1B, respectively.
  • the heat-insulating container 1 comprises a disc-shaped upper lid 10, a disc-shaped lower lid 20, and a cylindrical sidewall portion 30, each made of a synthetic resin foam.
  • the cylindrical sidewall portion 30 is made up of three identically shaped separate pieces 31 divided at 120° intervals along the circumference.
  • each separate piece 31 comprises arched cut portions 32 and 33 formed on the inside of the upper and lower circumferential edges, respectively.
  • Each separate piece 31 also comprises a rib 34 on the internal wall surface slightly above the middle section, protruding radially.
  • One side edge of the internal surface of each separate piece 31 is provided with a rib 35.
  • the other side edge of the internal surface of each separate piece 31 is provided with a groove 36 with which the rib 35 can engage in an air-tight manner.
  • the three separate pieces 31 are put together such that the rib 35 and groove 36 formed on the side edges can abut with each other, thereby forming the cylindrical sidewall portion 30 mentioned in the present invention.
  • the cylindrical sidewall portion 30 is formed with circular recessed portions 32a and 33a on the inside of the upper and lower open ends, respectively, of the cylindrical sidewall portion 30.
  • the cylindrical sidewall portion 30 is further formed with a circular rim 34a slightly above the middle of the internal wall.
  • the separate pieces 31 are assembled via an abutting portion S where the concave portion formed on one surface abuts the convex portion formed on the other surface. As shown in FIG. 5A, no two abutting portions S are located simultaneously in a vertical virtual plane L slicing along a center line O of the cylinder.
  • the abutting portions S of the separate pieces located on the opposite side do not easily separate and the loss of air-tightness can be prevented.
  • the disc-shaped upper lid 10 and the disc-shaped lower lid 20 are discs of substantially the same shape, and their diameter is substantially the same as the external diameter of the cylindrical sidewall portion 30.
  • the disc-shaped upper lid 10 may be slightly smaller in diameter. This makes it easier to open the disc-shaped upper lid 10 when in use, as will be described later.
  • One face of each disc forms a cylinder portion 11 or 21 with a reduced diameter which is substantially the same as the diameter of the circular recessed portions 32a and 33a formed at the upper and lower open ends of the cylindrical sidewall portion 30.
  • the disc-shaped upper lid 10 and lower lid 20 are mounted on the cylindrical sidewall portion 30 such that their cylinder portions 11 and 21 with reduced diameter internally engages the upper and lower open ends of the cylinder sidewall portion 30 in an air-tight manner, as shown in FIG. 2A.
  • the internal space is isolated from the external space.
  • a plate-like central bedding 40 is placed as needed on the circular rim 34a formed on the internal wall surface of the cylindrical sidewall portion 30, as shown in FIG. 4A.
  • the central bedding 40 is made of an expanded or non-expanded polystyrene resin, for example, and formed with a number of through holes 41.
  • FIG. 4B shows a bedding 45 which is used as needed. It has legs 46 on the back surface so that, when the bedding 45 is placed on the disc-shaped lower lid 20, a ventilating space is formed between the bedding and the disc-shaped lower lid 20.
  • the cylindrical sidewall portion 30 is assembled first, the bedding 45 is placed inside if needed (not shown in FIG. 2A), and then the disc-shaped lower lid 20 is attached to the bottom portion of the sidewall portion.
  • the joined surfaces or the seams are sealed by an adhesive tape (not shown).
  • an item to be heat-insulated such as an enzyme
  • the central bedding 40 is placed, and then a refrigerant such as dry ice is placed thereon (in the upper space B).
  • the disc-shaped upper lid 10 is put on the cylindrical sidewall portion 30, to complete the heat-insulating container 1 in which the heat-insulated item is accommodated in an air-tight space.
  • the through holes 41 in the central bedding 40 allow cool air to circulate effectively, so that the heat-insulated item can be stored in a temperature-controlled environment for long hours or days.
  • the disc-shaped upper lid 10 is removed and the accommodated item is retrieved.
  • the heat-insulating container 1 after use is transported back or stored at a different site.
  • the disc-shaped lower lid 20 and the central bedding 40 (and also the bedding 45) can be easily separated from one another.
  • the cylindrical sidewall portion 30 can also be easily disassembled into the three separate pieces 31.
  • the heat-insulating container 1 requires far less space when transported or stored without any contents than when used for its intended functions, so that the transportation or storage costs can be reduced. Further, since the heat-insulating container 1 is made up of a number of small parts, molding costs can be greatly reduced as compared with the case of integrally molding the entire container.
  • FIGs. 5A to 5C are plan views schematically showing only the cylindrical sidewall portion 30.
  • FIG. 5A shows the above-described cylindrical sidewall portion 30.
  • FIG. 5B shows a cylindrical sidewall portion 30 formed by not three but five separate pieces 31a. In this case, too, no two abutting portions S are simultaneously located in a vertical virtual plane L slicing along the center line O of the cylinder.
  • FIG. 5C shows a further example which differs from the example of FIG. 5A in that the rib and groove at the side edges of each separate piece 31b are formed by a tongue 35a and a groove 36a, respectively, in the so-called tongue-and-groove joint. In this embodiment, better air-tightness can be obtained, and also the possibility of the individual separate pieces 31b being separated by an impact can be reduced.
  • FIGs. 6A and 6B are plan views schematically showing further examples of the cylindrical sidewall portion 30.
  • the cylindrical sidewall portion 30 is made up of two or four separate pieces 31. While in these cases two abutting portions S are simultaneously included in the vertical virtual plane L slicing the center line O of the cylinder, the cylindrical sidewall portion 30 can be prevented from easily separating by suitably arranging the manner of engagement in the abutting portions S, or by affixing an adhesive tape along the periphery of the cylindrical sidewall portion 30.
  • FIG. 7 shows a cylindrical container protector 50 which may be suitably used in such cases.
  • the container protector 50 may be made of any materials including, e.g., reinforced paper, resin, and metal, as long as they can provide a necessary strength. Paper is preferable, for it can be easily disposed of.
  • the container protector 50 comprises a container body 51 with an open upper part and a lid 52.
  • the heat-insulating container 1 accommodating a heat-insulated item is placed in the container body 51 and the lid 52 is closed, and, if necessary, the joints are sealed by an adhesive tape (not shown).
  • the container protector 50 is indicated by phantom lines.
  • the heat-insulating container can be made highly resistant to external impacts or shocks and can therefore withstand a long transportation by air, sea or land.
  • FIGs. 8A to 8D show other embodiments of the heat-insulating container 1.
  • the cylindrical sidewall portion 30 is further divided into two or more stages (stages 30a, 30b, and 30c in the illustrated example) along the central axis.
  • the individual cylindrical sidewall portions 30a, 30b, and 30c are combined into one piece via a fitting engagement of a circular rib 38 and a circular groove 39 formed on the upper and lower peripheral edge faces of each sidewall portion.
  • the cylindrical sidewall portion 30 can be assembled in a highly stabilized manner while ensuring a high degree of air-tightness.
  • the air-tightness is further enhanced by the disc-shaped upper lid 10 and disc-shaped lower lid 20 being likewise joined with the cylindrical sidewall portions 30a and 30c, respectively, via a circular rib and a circular groove.
  • the cylindrical sidewall portion 30a, 30b, or 30c in each stage is made up of a plurality of separate pieces, as in the above embodiments.
  • FIG. 8B differs from FIG. 8A in that the bedding 45 is placed inside.
  • FIG. 8C differs from FIGs. 8A and 8B in that the thickness of the middle cylindrical sidewall portion 30b is different from that of the upper and lower cylindrical sidewall portions 30a and 30c (In the illustrated example, the middle cylindrical sidewall portion is wider, but it may be thinner.). This example is advantageous in that the temperature distribution inside the container can be controlled.
  • FIG. 8D differs from the others in that two central beddings 40 are attached to the middle cylindrical sidewall portion 30b.
  • different temperature environments can be obtained in a lower space A and an upper space B by placing a refrigerant between the central beddings 40.
  • the thickness of the middle cylindrical sidewall portion 30b greater than that of the upper and lower cylindrical sidewall portions 30a and 30c, the duration of time before melting or sublimation of the refrigerant occurs can be advantageously extended.
  • FIG. 9 shows the results of a heat-insulating test involving the heat-insulating container 1 according to the embodiment shown in FIGs. 1 and 2.
  • the heat-insulating container 1 used had a diameter of 490 mm and a height of 620 mm externally.
  • the thickness of the disc-shaped upper lid 10, disc-shaped lower lid 20 and cylindrical sidewall portion 30 was all 50 mm.
  • the internal volume was about 60 L.
  • the material was a polystyrene resin, with an expansion factor of 50.
  • two packages each containing 5 kg of an enzyme (total of 10 kg) were stored in the lower space A.
  • the central bedding 40 made of an expanded polystyrene resin was placed, and then four packages each containing 2.2 kg of dry ice (total of about 9 kg) were put into the upper space B.
  • the container was sealed by putting the disc-shaped upper lid 10 thereon.
  • the heat-insulating container 1 was then placed in a reinforced paper drum (container protector 50) measuring, externally, 520 mm in diameter, 650 mm in height and 10 mm in thickness (with an internal volume of about 120 L), and the drum was covered by the lid 51 and sealed by an adhesive tape.
  • the drum thus accommodating the heat-insulating container 1 was then left to stand outside for a long time at a temperature of about 40°C, and temperature changes in the enzyme were measured.
  • FIG. 9 shows the results.
  • the temperature of the enzyme was controlled at 0°C or below for about 75 hours, and it reached 25°C only after 110 hours.
  • a typical transportation environment and time are 40°C and 100 hours, respectively.
  • it is an evaluation yardstick for temperature of the product to be maintained at 25°C (control temperature) or below the above-described heat-insulating container is quite satisfactory.
  • the heat-insulating container of the present invention allows the temperature of a heat-insulated item to be controlled below a preferable temperature for a long time. Further, since the heat-insulating container of the present invention is made up of a plurality of parts, the entire volume of the container can be minimized when not used as such, so that the space required for the distribution or storage of the container not in use can be reduced, and molding costs can be reduced as compared with the case of costs for integral molding.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Enzymes And Modification Thereof (AREA)
EP02019187A 2001-09-07 2002-09-02 Isolierbehälter Withdrawn EP1291299A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001271363A JP2003081350A (ja) 2001-09-07 2001-09-07 保温保冷容器
JP2001271363 2001-09-07

Publications (1)

Publication Number Publication Date
EP1291299A1 true EP1291299A1 (de) 2003-03-12

Family

ID=19096885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02019187A Withdrawn EP1291299A1 (de) 2001-09-07 2002-09-02 Isolierbehälter

Country Status (4)

Country Link
US (1) US20030047480A1 (de)
EP (1) EP1291299A1 (de)
JP (1) JP2003081350A (de)
CN (1) CN1405070A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG115594A1 (en) * 2003-11-26 2005-10-28 Fagerdala Singapore Pte Ltd Insulated panels and shipping container incorporating said panels
EP1860034A1 (de) * 2006-05-22 2007-11-28 thermohauser GmbH Wandung für Isolierbehälter und Isolierbehälter
FR3035379A1 (fr) * 2015-04-21 2016-10-28 Mappas Patrice Boite isotherme modulaire

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140197296A1 (en) * 2013-01-16 2014-07-17 Matthew Edwin Jones Dual Function Base Support Cover
CN108485959A (zh) * 2018-04-18 2018-09-04 浙江天联机械有限公司 一种新型酶解系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027286A (en) * 1960-03-04 1962-03-27 Gilman Brothers Co Packing or shipping container
US3092277A (en) * 1960-10-07 1963-06-04 Jefferson K Brim Thermal jacket for beverage container
BE816493A (fr) * 1974-06-18 1974-10-16 Caisse demontable.
JPH0358267A (ja) 1989-07-27 1991-03-13 Nec Corp 対話型文処理装置
JP2000159271A (ja) 1998-11-26 2000-06-13 Sekisui Plastics Co Ltd 保冷容器
FR2805528A1 (fr) * 2000-02-29 2001-08-31 Krustanord Systeme d'emballage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027286A (en) * 1960-03-04 1962-03-27 Gilman Brothers Co Packing or shipping container
US3092277A (en) * 1960-10-07 1963-06-04 Jefferson K Brim Thermal jacket for beverage container
BE816493A (fr) * 1974-06-18 1974-10-16 Caisse demontable.
JPH0358267A (ja) 1989-07-27 1991-03-13 Nec Corp 対話型文処理装置
JP2000159271A (ja) 1998-11-26 2000-06-13 Sekisui Plastics Co Ltd 保冷容器
FR2805528A1 (fr) * 2000-02-29 2001-08-31 Krustanord Systeme d'emballage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG115594A1 (en) * 2003-11-26 2005-10-28 Fagerdala Singapore Pte Ltd Insulated panels and shipping container incorporating said panels
EP1860034A1 (de) * 2006-05-22 2007-11-28 thermohauser GmbH Wandung für Isolierbehälter und Isolierbehälter
FR3035379A1 (fr) * 2015-04-21 2016-10-28 Mappas Patrice Boite isotherme modulaire

Also Published As

Publication number Publication date
CN1405070A (zh) 2003-03-26
US20030047480A1 (en) 2003-03-13
JP2003081350A (ja) 2003-03-19

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