JPH1033297A - Seat - Google Patents
SeatInfo
- Publication number
- JPH1033297A JPH1033297A JP8215039A JP21503996A JPH1033297A JP H1033297 A JPH1033297 A JP H1033297A JP 8215039 A JP8215039 A JP 8215039A JP 21503996 A JP21503996 A JP 21503996A JP H1033297 A JPH1033297 A JP H1033297A
- Authority
- JP
- Japan
- Prior art keywords
- seat
- urethane foam
- density
- durability
- urethane
- 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.)
- Pending
Links
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、シートにおけるク
ッションパッド体が、座面の尻下部と、この尻下部以外
の部分とが異密度ウレタンフォームパッドで形成されて
なるシートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat in which a cushion pad body of a seat is formed of a different-density urethane foam pad in a lower portion of a seat surface and a portion other than the lower portion of the seat.
【０００２】[0002]
【従来の技術】従来、自動車等のシートにおけるクッシ
ョンパッド体のクッション材としては、モールドで発泡
されたウレタンクッション材が多く使用されている。従
来のシートにおけるクッションパッドは、全部が同じク
ッション材であるウレタンフォームパッドで形成されて
いる。これはシートクッションばかりでなく、シートバ
ックやアームレストについてもいえることである。2. Description of the Related Art Conventionally, as a cushion material for a cushion pad body in a seat of an automobile or the like, a urethane cushion material foamed by a mold is often used. The cushion pad in the conventional seat is formed entirely of a urethane foam pad which is the same cushion material. This applies not only to seat cushions but also to seat backs and armrests.
【０００３】[0003]
【発明が解決しようとする課題】クッション材はシート
の乗心地を決める重要な材料である。一方、最近は自動
車に対する低燃費の要求から、ウレタンクッション材の
軽量化、さらには低コスト化の面から、低密度化（重量
低減）の要求がある。The cushioning material is an important material that determines the riding comfort of the seat. On the other hand, recently, there has been a demand for low density (weight reduction) from the viewpoint of reducing the weight of the urethane cushion material and further reducing the cost due to the demand for low fuel consumption of the automobile.
【０００４】しかしながら、ウレタンフォームの低密度
化を図るためには次のような課題がある。 乗り心地性能が悪くなる。 耐久性が悪くなり、長時間使用すると、ヘタリ、歪で
シート形状がくずれ、表面に表皮たるみしわが発生す
る。However, there are the following problems in reducing the density of urethane foam. Ride comfort performance deteriorates. The durability deteriorates, and if used for a long period of time, the sheet shape will be distorted due to settling and distortion, and the surface will have sagging and wrinkles.
【０００５】本発明は、このような点に鑑み乗り心地性
能を確保しながら、ウレタンクッションパッド体の重量
低減を可能にしたシートを提供することを目的とする。In view of the above, it is an object of the present invention to provide a seat capable of reducing the weight of a urethane cushion pad while securing ride comfort performance.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するた
め、請求項１に係る発明は、シートにおけるウレタンフ
ォームよりなるクッションパッド体を、座面の尻下部を
除く部位が、尻下部の密度より低密度で、かつ反発弾性
率の高いウレタンフォームパッドで形成したことを特徴
とする。In order to achieve the above object, the invention according to claim 1 is to provide a cushion pad body made of urethane foam in a seat, in which a portion of a seat surface except for a lower part of the seat has a lower density than a lower part of the seat. It is characterized by being formed of a urethane foam pad having a low density and a high rebound resilience.
【０００７】また、請求項２に係る発明は、前記ウレタ
ンフォームパッドの反発弾性率が７５％以上であること
を特徴とする。The invention according to claim 2 is characterized in that the urethane foam pad has a rebound resilience of 75% or more.
【０００８】[0008]
【発明の実施の形態】以下、本発明の一実施の形態につ
いて図とともに説明する。図１は本発明の実施の形態を
示す斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention.
【０００９】同図において、シート１は、シートクッシ
ョン２およびシートバック３とより構成され、シートバ
ック３の頂部にはヘッドレスト４が設けられている。In FIG. 1, a seat 1 includes a seat cushion 2 and a seat back 3, and a headrest 4 is provided on the top of the seat back 3.
【００１０】シート１のシートクッション２におけるシ
ートクッションパッドは、ウレタンフォームで形成され
るが、座面の尻下部Ａを除く部位Ｂ、例えば座面の前部
およびサイド部が、尻下部Ａの密度より低密度で、かつ
反発弾性率の高いウレタンフォームで形成される。The seat cushion pad of the seat cushion 2 of the seat 1 is formed of urethane foam, and a portion B of the seat except for a lower portion A of the seat surface, for example, a front portion and a side portion of the seat surface have a lower density of the lower portion A. It is formed of urethane foam having a lower density and a high rebound resilience.
【００１１】ここで異密度構造としたのは、低密度化を
行うと、乗り心地が悪くなる傾向になるため、乗心地上
重要である尻下部Ａより、乗り心地上あまり重要でない
パッド部位Ｂを、尻下部Ａより低密度化したウレタン材
料を使用することで、乗り心地性能を確保しながら、ウ
レタンクッションパッド体の重量低減を図るためであ
る。The reason why the different-density structure is adopted is that the lower the density, the lower the riding comfort tends to be. By using a urethane material having a lower density than that of the lower rear part A, it is possible to reduce the weight of the urethane cushion pad body while ensuring ride comfort performance.
【００１２】また、座面の尻下部Ａを除く部位Ｂの低密
度化部のウレタン材料としては、耐久性を確保するた
め、反発弾性率７５％以上の特性を持つ材料が好まし
い。As the urethane material for the low-density portion of the portion B excluding the lower portion A of the seat surface, a material having a characteristic of a rebound resilience of 75% or more is preferable in order to ensure durability.
【００１３】反発弾性率の高いウレタンフォームを使用
することは、シートクッションパッド材のヒステリシス
ロス率を少なくすること（図２に反発弾性率の違いによ
るヒステリシスロス率の差を示す）であり、それにより
結果として、ウレタンフォームパッド体のへたり、歪を
少くできる。種々検討の結果、特に反発弾性率が７５％
以上の特性を持つウレタンフォームパッド体を使用する
ことで、シート、特に自動車用シートの耐久性と軽量化
の両立が達成できることが判明したものである。The use of urethane foam having a high rebound resilience means reducing the hysteresis loss rate of the seat cushion pad material (FIG. 2 shows the difference in the hysteresis loss rate due to the difference in rebound resilience). As a result, sag and distortion of the urethane foam pad body can be reduced. As a result of various investigations, especially the rebound resilience was 75%
It has been found that by using a urethane foam pad body having the above characteristics, it is possible to achieve both durability and weight reduction of a seat, particularly an automobile seat.
【００１４】次に本発明の効果を示すために、評価試験
結果を図４および図５に示す。これは同一アルミ発泡型
モールドで、従来品、低密度品、本発明品の自動車用ウ
レタンフォームクッションパッドを作り、これらを同時
にそれぞれのパッド密度、硬度、ウレタンフォームの反
発弾性率、ウレタンフォーム素材の耐久性性能を示す湿
熱圧縮永久歪率と繰り返し圧縮残留歪率およびシートの
耐久性（試験前後の加圧板さがり）、乗り心地（６Ｈｚ
時伝達率）の評価試験をしたものである。Next, in order to show the effect of the present invention, the evaluation test results are shown in FIGS. This is the same aluminum foam mold, to make the conventional product, low density product, urethane foam cushion pad for automobile of the present invention, and simultaneously use these pad density, hardness, rebound elastic modulus of urethane foam, urethane foam material Wet heat compression set and durability of repeated compression showing the durability performance, durability of the sheet (press plate before and after the test), ride comfort (6 Hz)
(Time transmission rate).
【００１５】ここで乗り心地評価に６Ｈｚ時伝達率を用
いたのは、人の内蔵の共振点は４〜８Ｈｚと言われてお
り、６Ｈｚの伝達率が評価の代表値といえるからであ
り、乗員が不快にならないようにシートクッションの共
振点をずらして、６Ｈｚ時の伝達率を小さくする必要性
があることに起因する。The reason why the transmission rate at 6 Hz is used for the evaluation of ride comfort is that the built-in resonance point of a person is said to be 4 to 8 Hz, and the transmission rate at 6 Hz can be said to be a representative value of the evaluation. This is because it is necessary to shift the resonance point of the seat cushion so as not to make the occupant uncomfortable, and to reduce the transmission rate at 6 Hz.
【００１６】また、シートの耐久性評価は、ＪＡＳＯ
Ｂ４０５の試験方法、シートの乗り心地評価は、ＪＡＳ
Ｏ Ｂ４０８の試験方法にそれぞれ準拠し、図３に示す
試験機を用いてそれぞれ測定した。特に、耐久試験は、
ＪＳＡＥ 尻型を用い３５万回の加振耐久を行った後の
加圧板下がり（試験前後の加圧板の上下方向の変位）で
評価を行った。また、図２には反発弾性率の違うウレタ
ンフォーム（７０，８０％）のヒステリシスロス差を表
した静荷重線図を示す。The durability of the sheet was evaluated according to JASO.
The test method of B405 and the evaluation of the riding comfort of the seat are JAS
Each was measured using the tester shown in FIG. 3 according to the test method of OB408. In particular, the durability test
The evaluation was performed by lowering the pressing plate (vertical displacement of the pressing plate before and after the test) after performing the vibration endurance of 350,000 times using a JSAE buttocks. FIG. 2 is a static load diagram showing a hysteresis loss difference between urethane foams (70, 80%) having different rebound resiliences.
【００１７】この評価試験の結果によれば、図４および
図５に示す通り、従来品を軽量化した低密度品では、耐
久性の目安となる繰り返し圧縮残留歪率が２．１％、湿
熱圧縮永久歪率が１６％であり、従来品がそれぞれ１．
３％および１２％であるから極端に悪くなり、また同時
に、低密度化に伴い耐久性（耐久試験前後の加圧板さが
り）、乗り心地性能（６Ｈｚ時の伝達率）共に悪くなっ
ている。According to the results of this evaluation test, as shown in FIGS. 4 and 5, in the case of a low-density product in which a conventional product is reduced in weight, the repetitive compression set rate, which is a measure of durability, is 2.1%, The compression set is 16%.
Since they are 3% and 12%, they are extremely poor, and at the same time, the durability (the pressure plate before and after the durability test) and the riding comfort performance (transmittance at 6 Hz) are deteriorated due to the low density.
【００１８】しかし、本発明品は、Ｂ部に低密度で反発
弾性率（７８％）のウレタンを使用することで、繰り返
し圧縮残留歪率、湿熱圧縮永久歪率、耐久性、乗り心地
性能、などのどの項目についても殆ど悪くならない。ま
た、ヒステリシスロスも悪くならない。However, by using urethane having a low density and a rebound resilience (78%) in part B, the product of the present invention can be used repeatedly to obtain a compression set, a wet heat compression set, durability, ride comfort, It is hardly bad for any items such as. Also, the hysteresis loss does not deteriorate.
【００１９】因に、繰り返し圧縮残留歪率では、従来品
が１．３％であるのに対し本発明品はＡ部で１．３％、
Ｂ部で１．５％、湿熱圧縮永久歪率では、従来品が１２
％であるのに対し本発明品はＡ部で１２％、Ｂ部で８．
８％、耐久性では従来品が８ｍｍであるのに対し本発明
品は７ｍｍ、乗り心地性能では従来品が０．７１である
のに対し本発明品は０．６９であり、殆ど悪くなってい
ないのが理解できる。The repetition compression residual strain ratio of the conventional product was 1.3%, whereas that of the product of the present invention was 1.3% in part A,
In the part B, 1.5% was obtained.
%, Whereas the product of the present invention is 12% in part A and 8.8 in part B.
8%, the conventional product is 8 mm in durability, while the product of the present invention is 7 mm, and the ride quality is 0.71 of the conventional product, whereas the product of the present invention is 0.69, which is almost worse. I understand that there is no.
【００２０】従って、低密度化にもかかわらず耐久性を
確保できた。一方、本発明品のＡ部は、乗り心地上重要
な部分であり、Ｂ部より高密度ウレタンフォームパッド
を使用することで乗り心地は悪くならない。その結果、
従来品より軽量化でき、従来品なみの性能を確保でき
た。Therefore, the durability was ensured despite the lower density. On the other hand, part A of the product of the present invention is an important part in terms of riding comfort, and the riding comfort is not deteriorated by using a high-density urethane foam pad compared to part B. as a result,
Lighter weight than conventional products, and performance comparable to conventional products was secured.
【００２１】[0021]
【発明の効果】以上詳細に説明した通り、請求項１にか
かる発明では、シートにおけるウレタンフォームよりな
るクッションパッド体を、座面の尻下部を除く部位が、
尻下部の密度より低密度で、かつ反発弾性率の高いウレ
タンフォームパッドで形成したので、乗り心地性能はも
ちろんのこと、繰り返し圧縮残留歪率、湿熱圧縮永久歪
率および耐久性等の性能を確保しつつ軽量化、低廉化で
きた効果を奏する。As described above in detail, according to the first aspect of the present invention, the cushion pad body made of urethane foam in the seat is provided with a portion excluding the lower rear portion of the seat surface.
Made from a urethane foam pad with a lower resilience and lower resilience than the density of the lower back part, ensuring not only ride comfort but also performance such as repeated compression residual strain, wet heat compression set and durability. This has the effect of reducing the weight and cost.
【００２２】また、請求項２にかかる発明では、前記ウ
レタンフォームパッドの反発弾性率を７５％以上とした
ので充分の耐久性が確保できる。Further, in the invention according to claim 2, since the rebound resilience of the urethane foam pad is 75% or more, sufficient durability can be ensured.
【図１】本発明の実施の形態を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】反発弾性率７０％と８０％のヒステリシスロス
差を示す静荷重線図である。FIG. 2 is a static load diagram showing a difference in hysteresis loss between a rebound resilience of 70% and 80%.
【図３】乗り心地性能、耐久性の評価試験に使用する試
験機の説明図である。FIG. 3 is an explanatory diagram of a test machine used for an evaluation test of ride comfort performance and durability.
【図４】評価試験結果を示す図表である。FIG. 4 is a table showing evaluation test results.
【図５】耐久性、乗り心地性能の評価試験結果を示す図
表である。FIG. 5 is a table showing evaluation test results of durability and ride comfort performance.
１ シート ２ シートクッション ３ シートバック Ａ 座面の尻下部 Ｂ 座面の尻下部を除く部位 DESCRIPTION OF SYMBOLS 1 Seat 2 Seat cushion 3 Seat back A Lower part of seat bottom B Excluding lower part of seat bottom
Claims (2)
るクッションパッド体を、座面の尻下部を除く部位が、
尻下部の密度より低密度で、かつ反発弾性率の高いウレ
タンフォームパッドで形成したことを特徴とするシー
ト。Claims: 1. A cushion pad body made of urethane foam in a seat, and a portion excluding a lower rear portion of a seat surface,
A sheet formed of a urethane foam pad having a lower resilience than the density of a lower back part and a high rebound resilience.
率が７５％以上であることを特徴とする請求項１記載の
シート。2. The sheet according to claim 1, wherein the urethane foam pad has a rebound resilience of 75% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8215039A JPH1033297A (en) | 1996-07-26 | 1996-07-26 | Seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8215039A JPH1033297A (en) | 1996-07-26 | 1996-07-26 | Seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1033297A true JPH1033297A (en) | 1998-02-10 |
Family
ID=16665752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8215039A Pending JPH1033297A (en) | 1996-07-26 | 1996-07-26 | Seat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1033297A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002153357A (en) * | 2000-11-20 | 2002-05-28 | Bridgestone Corp | Vehicle seat cushion pad |
| JP2002300936A (en) * | 2001-04-06 | 2002-10-15 | Inoac Corp | Seat pad for vehicle and manufacturing method therefor |
| JP2004147979A (en) * | 2002-10-31 | 2004-05-27 | Tokai Kogyo Co Ltd | Cushion material for vehicle sheet |
| WO2004058473A1 (en) * | 2002-12-24 | 2004-07-15 | Bridgestone Corporation | Polyurethane foam molding, method of producing the same, and seat pad for motor vehicle |
| AU2002300321B2 (en) * | 1998-05-18 | 2005-05-19 | Robert Andrew Crosbie | Chair and seat cushion therefor |
| JP2005237483A (en) * | 2004-02-24 | 2005-09-08 | Tokai Kogyo Co Ltd | Cushion body for vehicle seat |
| WO2005122834A1 (en) * | 2004-06-15 | 2005-12-29 | Bridgestone Corporation | Seat cushion pad for vehicle, seat back pad for vehicle, and seat for vehicle |
| JP2006166987A (en) * | 2004-12-13 | 2006-06-29 | Toyo Tire & Rubber Co Ltd | Seat cushion pad |
| JP2007117186A (en) * | 2005-10-25 | 2007-05-17 | Inoac Corp | Car seat cushion and car seat |
| EP1832204A1 (en) * | 2004-12-28 | 2007-09-12 | Bridgestone Corporation | Seat cushion pad, seat back pad, and seat for vehicle |
| WO2012043807A1 (en) * | 2010-10-01 | 2012-04-05 | 日産自動車株式会社 | Vehicle seat and stiffness setting method for vehicle seat |
| US8360530B2 (en) | 2008-11-28 | 2013-01-29 | Toyota Boshoku Kabushiki Kaisha | Vehicle seat |
| JP2014024398A (en) * | 2012-07-25 | 2014-02-06 | Honda Motor Co Ltd | Vehicle seat |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6274310A (en) * | 1985-09-27 | 1987-04-06 | 株式会社イノアックコ−ポレ−ション | Seat cushion and its production |
| JPH0252607A (en) * | 1988-08-16 | 1990-02-22 | Toyo Tire & Rubber Co Ltd | Seat cushion and its manufacture |
-
1996
- 1996-07-26 JP JP8215039A patent/JPH1033297A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6274310A (en) * | 1985-09-27 | 1987-04-06 | 株式会社イノアックコ−ポレ−ション | Seat cushion and its production |
| JPH0252607A (en) * | 1988-08-16 | 1990-02-22 | Toyo Tire & Rubber Co Ltd | Seat cushion and its manufacture |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002300321B2 (en) * | 1998-05-18 | 2005-05-19 | Robert Andrew Crosbie | Chair and seat cushion therefor |
| JP2002153357A (en) * | 2000-11-20 | 2002-05-28 | Bridgestone Corp | Vehicle seat cushion pad |
| JP2002300936A (en) * | 2001-04-06 | 2002-10-15 | Inoac Corp | Seat pad for vehicle and manufacturing method therefor |
| JP2004147979A (en) * | 2002-10-31 | 2004-05-27 | Tokai Kogyo Co Ltd | Cushion material for vehicle sheet |
| US7334278B2 (en) | 2002-12-24 | 2008-02-26 | Bridgestone Corporation | Molded polyurethane foam product, seat pad for vehicle, and method for molding polyurethane foam product |
| WO2004058473A1 (en) * | 2002-12-24 | 2004-07-15 | Bridgestone Corporation | Polyurethane foam molding, method of producing the same, and seat pad for motor vehicle |
| JP2005237483A (en) * | 2004-02-24 | 2005-09-08 | Tokai Kogyo Co Ltd | Cushion body for vehicle seat |
| JP2012130815A (en) * | 2004-06-15 | 2012-07-12 | Bridgestone Corp | Seat cushion pad for vehicle, and seat for vehicle |
| WO2005122834A1 (en) * | 2004-06-15 | 2005-12-29 | Bridgestone Corporation | Seat cushion pad for vehicle, seat back pad for vehicle, and seat for vehicle |
| JPWO2005122834A1 (en) * | 2004-06-15 | 2008-04-10 | 株式会社ブリヂストン | Vehicle seat cushion pad, vehicle seat back pad, and vehicle seat |
| US7588296B2 (en) | 2004-06-15 | 2009-09-15 | Bridgestone Corporation | Seat cushion pad for vehicle, seat back pad for vehicle, and seat for vehicle |
| JP2006166987A (en) * | 2004-12-13 | 2006-06-29 | Toyo Tire & Rubber Co Ltd | Seat cushion pad |
| EP1832204A1 (en) * | 2004-12-28 | 2007-09-12 | Bridgestone Corporation | Seat cushion pad, seat back pad, and seat for vehicle |
| EP1832204A4 (en) * | 2004-12-28 | 2010-10-20 | Bridgestone Corp | Seat cushion pad, seat back pad, and seat for vehicle |
| JP2007117186A (en) * | 2005-10-25 | 2007-05-17 | Inoac Corp | Car seat cushion and car seat |
| JP4550716B2 (en) * | 2005-10-25 | 2010-09-22 | 株式会社イノアックコーポレーション | Vehicle seat cushion and vehicle seat |
| US8360530B2 (en) | 2008-11-28 | 2013-01-29 | Toyota Boshoku Kabushiki Kaisha | Vehicle seat |
| WO2012043807A1 (en) * | 2010-10-01 | 2012-04-05 | 日産自動車株式会社 | Vehicle seat and stiffness setting method for vehicle seat |
| US10543764B2 (en) | 2010-10-01 | 2020-01-28 | Nissan Motor Co., Ltd. | Vehicle seat and stiffness setting method for vehicle seat |
| JP2014024398A (en) * | 2012-07-25 | 2014-02-06 | Honda Motor Co Ltd | Vehicle seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6158815A (en) | Seat having a seat cushion including a polyurethane foam pad onto a portion of which a stretchable, nonwoven fabric is laminated | |
| JP5555674B2 (en) | Vehicle seat back pad and vehicle seat | |
| JPH1033297A (en) | Seat | |
| JP5387174B2 (en) | Vehicle seat | |
| JP6046249B2 (en) | Cushion body | |
| TW200304362A (en) | Seat structure | |
| US4761035A (en) | Seat cushion assembly | |
| US2231346A (en) | Seat construction | |
| JP2578163B2 (en) | Cushion body for seat | |
| JP5038784B2 (en) | Seat cushion structure | |
| JP4797379B2 (en) | Vehicle seat cushion pad, vehicle seat back pad, and vehicle seat | |
| US2488993A (en) | Seat | |
| JP2002153357A (en) | Vehicle seat cushion pad | |
| JP2006130006A (en) | Pad for seat | |
| JP2002065409A (en) | Seat cushion pad | |
| JPH0970330A (en) | Layered different hardness pad for vehicle seat | |
| JP4180445B2 (en) | Chair | |
| US3224017A (en) | Vehicle seat | |
| JP2004147979A (en) | Cushion material for vehicle sheet | |
| JP4133864B2 (en) | Cushion body for vehicle seat | |
| JP3948989B2 (en) | Cushion body | |
| JP7502937B2 (en) | Cushioning material and vehicle seat equipped with same | |
| JP2003000392A (en) | Body pressure dispersing seat | |
| JP2002045259A (en) | Seating pressure reducing cushion pad and seating pressure reducing seat | |
| JP2005185350A (en) | Vehicle seat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050412 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050613 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050809 |