SG176974A1 - Manufacturing method of glass substrate for magnetic disk, manufacturing method of glass blank, glass substrate for magnetic disk, and glass blank - Google Patents
Manufacturing method of glass substrate for magnetic disk, manufacturing method of glass blank, glass substrate for magnetic disk, and glass blank Download PDFInfo
- Publication number
- SG176974A1 SG176974A1 SG2011095726A SG2011095726A SG176974A1 SG 176974 A1 SG176974 A1 SG 176974A1 SG 2011095726 A SG2011095726 A SG 2011095726A SG 2011095726 A SG2011095726 A SG 2011095726A SG 176974 A1 SG176974 A1 SG 176974A1
- Authority
- SG
- Singapore
- Prior art keywords
- glass
- glass blank
- magnetic disk
- blank
- glass substrate
- Prior art date
Links
- 239000011521 glass Substances 0.000 title claims abstract description 461
- 239000000758 substrate Substances 0.000 title claims abstract description 144
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 53
- 239000006060 molten glass Substances 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims abstract description 73
- 238000003825 pressing Methods 0.000 claims abstract description 35
- 238000005498 polishing Methods 0.000 claims description 76
- 239000006061 abrasive grain Substances 0.000 claims description 68
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 239000005401 pressed glass Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 description 50
- 239000010410 layer Substances 0.000 description 39
- 238000003754 machining Methods 0.000 description 28
- 238000005520 cutting process Methods 0.000 description 26
- 239000000463 material Substances 0.000 description 26
- 238000007517 polishing process Methods 0.000 description 25
- 239000005357 flat glass Substances 0.000 description 22
- 230000003746 surface roughness Effects 0.000 description 19
- 239000010432 diamond Substances 0.000 description 18
- 229910003460 diamond Inorganic materials 0.000 description 18
- 239000002245 particle Substances 0.000 description 15
- 238000005728 strengthening Methods 0.000 description 13
- 239000002826 coolant Substances 0.000 description 10
- 238000009826 distribution Methods 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 8
- 239000005304 optical glass Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 230000000717 retained effect Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000007667 floating Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 229910000420 cerium oxide Inorganic materials 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000005354 aluminosilicate glass Substances 0.000 description 3
- 239000008119 colloidal silica Substances 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000010702 perfluoropolyether Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000006243 Fine Thermal Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 239000005345 chemically strengthened glass Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- -1 potassium nitride Chemical class 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/05—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing in machines with reciprocating moulds
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/088—Flat discs
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould
- C03B11/122—Heating
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/10—Cutting-off or severing the glass flow with the aid of knives or scissors or non-contacting cutting means, e.g. a gas jet; Construction of the blades used
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/02—Press-mould materials
- C03B2215/05—Press-mould die materials
- C03B2215/06—Metals or alloys
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/70—Horizontal or inclined press axis
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Surface Treatment Of Glass (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010082750 | 2010-03-31 | ||
| PCT/JP2011/001974 WO2011122054A1 (ja) | 2010-03-31 | 2011-03-31 | 磁気ディスク用ガラス基板及びガラスブランクの製造方法、および、磁気ディスク用ガラス基板及びガラスブランク |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG176974A1 true SG176974A1 (en) | 2012-02-28 |
Family
ID=44711808
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG2011095726A SG176974A1 (en) | 2010-03-31 | 2011-03-31 | Manufacturing method of glass substrate for magnetic disk, manufacturing method of glass blank, glass substrate for magnetic disk, and glass blank |
| SG10201502549PA SG10201502549PA (en) | 2010-03-31 | 2011-03-31 | Manufacturing method of glass substrate for magnetic disk, manufacturing method of glassblank, glass substrate for magnetic disk, and glass blank |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG10201502549PA SG10201502549PA (en) | 2010-03-31 | 2011-03-31 | Manufacturing method of glass substrate for magnetic disk, manufacturing method of glassblank, glass substrate for magnetic disk, and glass blank |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8973404B2 (enExample) |
| JP (3) | JP5431574B2 (enExample) |
| CN (2) | CN105355216B (enExample) |
| MY (1) | MY163806A (enExample) |
| PH (1) | PH12012501920A1 (enExample) |
| SG (2) | SG176974A1 (enExample) |
| WO (1) | WO2011122054A1 (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8806895B2 (en) * | 2010-12-09 | 2014-08-19 | Hoya Corporation | Manufacturing method for a glass substrate for magnetic disk |
| MY186189A (en) * | 2011-04-21 | 2021-06-30 | Hoya Corp | Method for manufacturing glass blank for magnetic disk, method for manufacturing glass substrate for magnetic disk, glass blank for magnetic disk, glass substrate for magnetic disk and magnetic disk |
| CN103492328B (zh) * | 2011-04-27 | 2016-01-27 | Hoya株式会社 | 磁盘用玻璃毛坯的制造方法、磁盘用玻璃基板的制造方法、磁盘用玻璃毛坯 |
| JP2013140649A (ja) * | 2011-12-29 | 2013-07-18 | Hoya Corp | 磁気ディスク用ガラス基板の製造方法、磁気ディスク用ガラス基板、及び化学強化用かご |
| WO2014051053A1 (ja) * | 2012-09-28 | 2014-04-03 | Hoya株式会社 | 磁気ディスク用ガラスブランクの製造方法、磁気ディスク用ガラス基板の製造方法、及び磁気ディスク用ガラスブランク |
| JP6505959B1 (ja) * | 2017-09-29 | 2019-04-24 | Hoya株式会社 | ガラススペーサ及びハードディスクドライブ装置 |
| DE102020111728B4 (de) * | 2020-04-29 | 2022-06-23 | Schott Ag | Elektro-optisches Wandlerbauteil mit einem Abstandhalter, sowie Abstandhalter-Wafer zur Herstellung eines elektro-optischen Wandlerbauteils |
| CN114296494B (zh) * | 2022-01-05 | 2023-01-10 | 信义玻璃工程（东莞）有限公司 | 温度控制方法、装置、设备和存储介质 |
Family Cites Families (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63248727A (ja) | 1987-04-02 | 1988-10-17 | Olympus Optical Co Ltd | ガラス成形品の製造方法および製造装置 |
| JPH01133948A (ja) | 1987-11-18 | 1989-05-26 | Canon Inc | 光学素子の製造方法 |
| JPH01164738A (ja) | 1987-12-22 | 1989-06-28 | Canon Inc | 光学素子の成形装置 |
| JPH06171959A (ja) | 1992-12-10 | 1994-06-21 | Olympus Optical Co Ltd | 光学素子製造方法 |
| JP3148641B2 (ja) | 1996-06-26 | 2001-03-19 | 日本碍子株式会社 | 磁気ディスク用結晶化ガラス基板のブランク材およびその製造方法 |
| US6442975B1 (en) * | 1996-12-26 | 2002-09-03 | Hoya Corporation | Method of manufacturing thin-plate glass article, method of manufacturing glass substrate for information recording medium, and method of manufacturing magnetic recording medium |
| JP3709033B2 (ja) | 1996-12-27 | 2005-10-19 | Ｈｏｙａ株式会社 | ガラス製品の製造方法 |
| JPH11228150A (ja) | 1998-02-16 | 1999-08-24 | Ngk Insulators Ltd | ガラス基板の作製方法 |
| JP3420192B2 (ja) | 2000-02-01 | 2003-06-23 | 株式会社オハラ | ガラスセラミックス |
| US20020009602A1 (en) * | 2000-03-13 | 2002-01-24 | Hoya Corporation | Method and apparatus of fabricating glass molded article, method of fabricating glass substrate, and information recording medium |
| JP4127974B2 (ja) * | 2001-01-29 | 2008-07-30 | Ｈｏｙａ株式会社 | 基板ブランク、基板および情報記録媒体それぞれの製造方法 |
| MY129886A (en) * | 2001-05-09 | 2007-05-31 | Matsushita Electric Industrial Co Ltd | Molding process of disk with shaft shaped portion |
| JP2003030822A (ja) | 2001-07-13 | 2003-01-31 | Fuji Electric Co Ltd | 磁気ディスク用基板の加工方法 |
| JP2003054965A (ja) | 2001-08-08 | 2003-02-26 | Minolta Co Ltd | ガラスのプレス成形方法および該方法を用いたハードディスク用ガラス基板の製造方法 |
| US20030134734A1 (en) * | 2001-08-08 | 2003-07-17 | Shiro Nishimoto | Press molding method for glass and manufacturing method for glass substrate using this method |
| JP3982229B2 (ja) * | 2001-10-17 | 2007-09-26 | 富士電機デバイステクノロジー株式会社 | ガラス基板のプレス成形装置及びプレス成形方法 |
| JP2004196651A (ja) | 2002-12-04 | 2004-07-15 | Fuji Electric Device Technology Co Ltd | 記憶媒体用ガラス基板の製造方法および装置、記憶媒体用ガラス基板及び記憶媒体 |
| JP4380379B2 (ja) | 2004-03-19 | 2009-12-09 | コニカミノルタオプト株式会社 | 情報記録媒体用ガラス基板の製造方法 |
| US7395679B2 (en) * | 2004-03-19 | 2008-07-08 | Konica Minolta Opto, Inc. | Method of manufacturing glass substrate for information recording medium |
| JPWO2005093720A1 (ja) * | 2004-03-25 | 2008-02-14 | Hoya株式会社 | 磁気ディスク用ガラス基板 |
| WO2005096275A1 (ja) * | 2004-03-31 | 2005-10-13 | Hoya Corporation | 磁気ディスク用ガラス基板及び磁気ディスク |
| CN101120055B (zh) * | 2005-02-18 | 2014-07-23 | 日本曹达株式会社 | 有机无机复合体 |
| JP2006282400A (ja) | 2005-03-31 | 2006-10-19 | Nippon Electric Glass Co Ltd | ガラス物品の成型方法および成型装置 |
| JP4696935B2 (ja) * | 2006-01-27 | 2011-06-08 | 日立電線株式会社 | Ｉｉｉ−ｖ族窒化物系半導体基板及びｉｉｉ−ｖ族窒化物系発光素子 |
| JP2008105894A (ja) | 2006-10-25 | 2008-05-08 | Fuji Electric Device Technology Co Ltd | 成形金型、中間部材及び基板の製造方法 |
| JP2008174401A (ja) * | 2007-01-16 | 2008-07-31 | Konica Minolta Opto Inc | ガラス基板成形用金型、ガラス基板の製造方法、情報記録媒体用ガラス基板の製造方法及び情報記録媒体の製造方法 |
| JP2008174402A (ja) | 2007-01-16 | 2008-07-31 | Konica Minolta Opto Inc | ガラス基板成形用金型、ガラス基板の製造方法、情報記録媒体用ガラス基板の製造方法及び情報記録媒体の製造方法 |
| JP5305698B2 (ja) | 2007-03-09 | 2013-10-02 | Ｈｏｙａ株式会社 | 磁気ディスク用ガラス基板の製造方法、磁気ディスク製造方法および磁気ディスク用ガラス基板 |
| JP4755135B2 (ja) | 2007-04-27 | 2011-08-24 | 株式会社オハラ | 結晶化ガラス |
| JP5005645B2 (ja) | 2007-09-27 | 2012-08-22 | Ｈｏｙａ株式会社 | 磁気ディスク用ガラス基板の製造方法及び磁気ディスクの製造方法 |
| JP5170877B2 (ja) | 2008-03-05 | 2013-03-27 | 古河電気工業株式会社 | ガラス基板の製造方法 |
| JP2009269762A (ja) | 2008-04-30 | 2009-11-19 | Fuji Electric Device Technology Co Ltd | ガラス素材およびその成形用金型ならびに磁気ディスク用ガラス基板の製造方法 |
| US8806895B2 (en) * | 2010-12-09 | 2014-08-19 | Hoya Corporation | Manufacturing method for a glass substrate for magnetic disk |
| US20120247155A1 (en) * | 2011-03-30 | 2012-10-04 | Hoya Corporation | Method of manufacturing glass blank for magnetic recording medium glass substrate, method of manufacturing magnetic recording medium glass substrate, method of manufacturing magnetic recording medium, and apparatus for manufacturing glass blank for magnetic recording medium glass substrate |
-
2011
- 2011-03-31 MY MYPI2011006190A patent/MY163806A/en unknown
- 2011-03-31 JP JP2012508106A patent/JP5431574B2/ja not_active Expired - Fee Related
- 2011-03-31 CN CN201510845654.9A patent/CN105355216B/zh active Active
- 2011-03-31 WO PCT/JP2011/001974 patent/WO2011122054A1/ja not_active Ceased
- 2011-03-31 SG SG2011095726A patent/SG176974A1/en unknown
- 2011-03-31 SG SG10201502549PA patent/SG10201502549PA/en unknown
- 2011-03-31 CN CN201180002677.3A patent/CN102859595B/zh not_active Expired - Fee Related
- 2011-03-31 PH PH1/2012/501920A patent/PH12012501920A1/en unknown
- 2011-03-31 US US13/379,803 patent/US8973404B2/en not_active Expired - Fee Related
-
2012
- 2012-08-20 JP JP2012181867A patent/JP5666524B2/ja active Active
-
2013
- 2013-02-20 JP JP2013030970A patent/JP5632027B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20120151967A1 (en) | 2012-06-21 |
| CN102859595B (zh) | 2016-01-20 |
| JP5666524B2 (ja) | 2015-02-12 |
| PH12012501920A1 (en) | 2013-02-04 |
| CN105355216B (zh) | 2017-10-03 |
| CN102859595A (zh) | 2013-01-02 |
| CN105355216A (zh) | 2016-02-24 |
| WO2011122054A1 (ja) | 2011-10-06 |
| JP2013136513A (ja) | 2013-07-11 |
| JP5632027B2 (ja) | 2014-11-26 |
| MY163806A (en) | 2017-10-31 |
| US8973404B2 (en) | 2015-03-10 |
| SG10201502549PA (en) | 2015-05-28 |
| JPWO2011122054A1 (ja) | 2013-07-08 |
| JP5431574B2 (ja) | 2014-03-05 |
| JP2012232899A (ja) | 2012-11-29 |
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