JP4450596B2 - 微粒子の製造方法 - Google Patents
微粒子の製造方法 Download PDFInfo
- Publication number
- JP4450596B2 JP4450596B2 JP2003330722A JP2003330722A JP4450596B2 JP 4450596 B2 JP4450596 B2 JP 4450596B2 JP 2003330722 A JP2003330722 A JP 2003330722A JP 2003330722 A JP2003330722 A JP 2003330722A JP 4450596 B2 JP4450596 B2 JP 4450596B2
- Authority
- JP
- Japan
- Prior art keywords
- fine particles
- producing
- polymer
- producing fine
- template
- 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.)
- Expired - Fee Related
Links
- 239000010419 fine particle Substances 0.000 title claims description 69
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 239000000463 material Substances 0.000 claims description 46
- 229920000642 polymer Polymers 0.000 claims description 38
- 239000003960 organic solvent Substances 0.000 claims description 16
- 239000011148 porous material Substances 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 10
- 238000007711 solidification Methods 0.000 claims description 9
- 230000008023 solidification Effects 0.000 claims description 9
- 238000001704 evaporation Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000000560 biocompatible material Substances 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 239000011859 microparticle Substances 0.000 claims description 3
- 230000000975 bioactive effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 35
- 239000000243 solution Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000002245 particle Substances 0.000 description 14
- 102000008186 Collagen Human genes 0.000 description 9
- 108010035532 Collagen Proteins 0.000 description 9
- 229920001436 collagen Polymers 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- -1 polyethylene carbonate Polymers 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 238000010828 elution Methods 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 239000008204 material by function Substances 0.000 description 4
- 239000002861 polymer material Substances 0.000 description 4
- 229920005597 polymer membrane Polymers 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 0 CCCCCCCCCCCCNC(C(C*C)*(C)*)=O Chemical compound CCCCCCCCCCCCNC(C(C*C)*(C)*)=O 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 239000004632 polycaprolactone Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229920003232 aliphatic polyester Polymers 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 125000005210 alkyl ammonium group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229920000831 ionic polymer Polymers 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N lactose group Chemical group OC1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@@H](O)[C@H](O2)CO)[C@H](O1)CO GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011970 polystyrene sulfonate Substances 0.000 description 1
- 229960002796 polystyrene sulfonate Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000012703 sol-gel precursor Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Landscapes
- Medicinal Preparation (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
「微粒子工学大系」、柳田博明編、フジ・テクノシステムズ、2002 (2)Murakami,H.,Kobayashi, M.,Takeuchi, H.,Kawashima, Y.,Powder Tech.,2000, 107,137
(1)多様な材料系から微粒子を作製できる。
(2)粒子のサイズ分布が良好である。
(3)微粒子化困難な材料の微粒子化
コラーゲン、ポリイミドなど、今まで微粒子化が困難であった材料を微粒子化することができる。
1)Nishida, J.;Nishikawa, K.;Nishimura, S.;Wada, S.;Karino, T.;Nishikawa, T.;Ijiro, K.;Shimomura M. Polym. J. 2002, 34, 166-174
2)Kurono, N.;Shimada, R.;Ishihara, T.;Shimomura M. Mol. Cryst. Liq. Cryst. 2002. 377. 285-288
3)Shimomura, M.;Sawadaishi T. Current Opinion in Colloid & Interface Science2001, 6. No1. 11-16
4)Shimomura, M. Hierarchical Structuring of Nanostructured 2-Dimentional Polymer Assemblies. in “Chemistry for the 21st Century-Organic Mesoscopic Chemistry ”Ed. by H. Masuhara, F.C.DcSchryver, IUPAC monograph, Blackwell Science, 1999, 107-126
5)Karthaus, O.;Murayama, N.;Cieren, X.;Shimomura, M.;Hasegawa, H.;Hashimoto, T.Langmuir 2000, 16(15), 6071
6)Karthaus, O.; Cieren, X.;Maruyama, N.;Shimomura M. Mater. Sci. Eng. 1999.
C10, 103-106
7)Nishikawa, T.;Nishida, J.;Ookura, R.;Nishimura, S.;Wada, S.;Karino, T.;Shimomura M. Mater. Sci. Eng. 1999, C 8-9, 485-500)
(特許文献;
1)特開2001−157574、2)特開2002−347107、3)特開2002−335949、4)特開2003−080538、5)特開2003−128832、6)特開2003−149096)。
(A)高分子多孔質膜
この出願の発明において鋳型として用いられる高分子多孔質膜については、上記のとおりのこの出願の発明者らによって開発されたハニカム状の多孔質フィルムが使用される。この高分子のハニカム多孔質フィルムは自己組織化により形成されたものであって、たとえば前記のとおり、高分子の溶液を固体基板上に塗布展開し、溶液表面に結露した水滴を鋳型として得ることができる。
(B)微粒子の生成
この出願の発明で用いることのできる微粒子化のための材料の種類は特に限定されないが、例えば、電子材料、光学材料、生分解性・生体適合性材料、あるいは生理活性物質またはこれと分子結合または混合可能な物質などを使用することができる。微粒子生成用材料は鋳型となるハニカム構造化フィルム等の高分子多孔質膜と相溶しない材料であることが好ましいが、相溶する材料であっても鋳型の表面処理により非相溶系とすることができる。
ゾル−ゲル前駆体、
光機能性、電子機能性ポリマーなどポリマー材料、
触媒材料、クロマトギラフィー用等の分離材料、
光・熱架橋性樹脂。
色素、電子・正孔輸送材料。
ここでγは溶液の表面張力、θは溶液の平膜上の接触角、rは細孔の半径である。一方親和性が低い場合、式(1)から常温・常圧下では浸透しにくいことがわかる。このような場合、減圧下におくことで強制的に浸透させることができる。
polystyrene(Aldrich,Mw=280,000)と次式の両親媒性高分子を9:1の重量比で混合し、5.0g/Lのクロロホルム溶液を調製した。この溶液を直径9cmのシャーレに10mL塗布し、高湿度の空気(相対湿度50%)を吹き付けてハニカム構造化フィルムを作製した。作製したフィルムは光学顕微鏡及び走査型電子顕微鏡(SEM)で観察を行った。
次式で表わされるpoly-caprolactone(Mw=200,000,Aldrich,U.S.A.)と実施例1で用いた両親媒性ポリマーを10:1の割合で混合し、5.0g/Lの濃度に調製した。この溶液を直径約9cmのガラスシャーレ上に5mL塗布し、高湿度の空気を当ててフィルムを作製した。
Claims (9)
- 高分子材料の非水溶性の有機溶剤溶液を展開し、高湿度下に非水溶性の有機溶剤を蒸発させることにより形成した高分子ハニカム状多孔質膜を鋳型とし、この高分子ハニカム状多孔質膜の空孔内に、微粒子生成用材料を充填し、固化した後に再分散させて微粒子を生成させることを特徴とする微粒子の製造方法。
- 鋳型としての高分子ハニカム状多孔質膜の空孔径が100nm〜100μmの範囲であることを特徴とする請求項1の微粒子の製造方法。
- 微粒子生成用材料を減圧下に充填することを特徴とする請求項1の微粒子の製造方法。
- 加熱により、もしくは光照射により固化させることを特徴とする請求項1の微粒子の製造方法。
- 固化した後に、鋳型の高分子ハニカム状多孔質膜を剥離、もしくは溶解することを特徴とする請求項1の微粒子の製造方法。
- 固化した後に超音波照射して微粒子を分散させることを特徴とする請求項1の微粒子の製造方法。
- 請求項1ないし6のいずれかの方法であって、生分解性材料、生体適合性材料および生理活性材料の少くともいずれかの微粒子を生成させることを特徴とする微粒子の製造方法。
- 請求項1ないし6のいずれかの方法であって、電子機能材料もしくは光機能材料のいずれかの微粒子を生成させることを特徴とする微粒子の製造方法。
- 請求項1ないし6のいずれかの方法であって、触媒機能材料もしくは分離機能材料のいずれかの微粒子を生成させることを特徴とする微粒子の製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003330722A JP4450596B2 (ja) | 2003-09-22 | 2003-09-22 | 微粒子の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003330722A JP4450596B2 (ja) | 2003-09-22 | 2003-09-22 | 微粒子の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005095733A JP2005095733A (ja) | 2005-04-14 |
JP4450596B2 true JP4450596B2 (ja) | 2010-04-14 |
Family
ID=34459581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003330722A Expired - Fee Related JP4450596B2 (ja) | 2003-09-22 | 2003-09-22 | 微粒子の製造方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4450596B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK1704585T3 (en) | 2003-12-19 | 2017-05-22 | Univ North Carolina Chapel Hill | Methods for preparing isolated micro- and nanostructures using soft lithography or printing lithography |
US9040090B2 (en) | 2003-12-19 | 2015-05-26 | The University Of North Carolina At Chapel Hill | Isolated and fixed micro and nano structures and methods thereof |
JP4512918B2 (ja) * | 2004-03-22 | 2010-07-28 | 独立行政法人科学技術振興機構 | マイクロリングあるいはマイクロドットを呈した微細パターンの製造方法 |
WO2005115609A1 (ja) * | 2004-05-31 | 2005-12-08 | Japan Science And Technology Agency | ナノ多孔質体を利用した微粒子、ナノ構造体の製造方法 |
AU2006282042B2 (en) * | 2005-06-17 | 2011-12-22 | The University Of North Carolina At Chapel Hill | Nanoparticle fabrication methods, systems, and materials |
JP4734157B2 (ja) * | 2006-03-30 | 2011-07-27 | 富士フイルム株式会社 | ハニカム状多孔質フィルム及びハニカム複合膜 |
WO2008013952A2 (en) | 2006-07-27 | 2008-01-31 | The University Of North Carolina At Chapel Hill | Nanoparticle fabrication methods, systems, and materials for fabricating artificial red blood cells |
JP5026751B2 (ja) * | 2006-09-04 | 2012-09-19 | 独立行政法人理化学研究所 | ハニカム状多孔質フィルムを鋳型とした金属パターンアレイ |
EP2207670B1 (en) * | 2007-10-12 | 2019-05-22 | Liquidia Technologies, Inc. | Method for producing particles and patterned films |
JP5762686B2 (ja) * | 2010-02-15 | 2015-08-12 | 公益財団法人神奈川科学技術アカデミー | 微粒子の製造方法 |
US10170764B2 (en) * | 2010-06-30 | 2019-01-01 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing ultra small particle, positive electrode active material of second battery using the method for manufacturing ultra small particle and method for manufacturing the same, and secondary battery using the positive electrode active material and method for manufacturing the same |
JP5750662B2 (ja) * | 2011-02-01 | 2015-07-22 | 栃木県 | 酸化セリウムナノ粒子−ゼオライト複合体、その製造方法および紫外線遮蔽材としての利用 |
-
2003
- 2003-09-22 JP JP2003330722A patent/JP4450596B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2005095733A (ja) | 2005-04-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10858490B2 (en) | Ultra-thin polymer film and porous ultra-thin polymer film | |
JP4450596B2 (ja) | 微粒子の製造方法 | |
Hoa et al. | Preparation of porous materials with ordered hole structure | |
Chen et al. | Adjustable supramolecular polymer microstructures fabricated by the breath figure method | |
US20170363953A1 (en) | Device for carrying out a capillary nanoprinting method, a method for carrying out capillary nanoprinting using the device, products obtained according to the method and use of the device | |
JPWO2004048064A1 (ja) | 微細突起構造体及びその製造方法 | |
Yabu et al. | Mesoscale pincushions, microrings, and microdots prepared by heating and peeling of self-organized honeycomb-patterned films deposited on a solid substrate | |
US20100189992A1 (en) | Method for producing product having nanoporous surface | |
Cho et al. | Bulk synthesis of ordered macroporous silica particles for superhydrophobic coatings | |
JP2014024818A (ja) | ゲル体の製造方法 | |
WO2007060951A1 (ja) | 炭素構造体の製造方法及び炭素構造体、並びに炭素構造体の集合体及び分散体 | |
Zhang et al. | Hierarchical Self‐Assembly of Dopamine into Patterned Structures | |
EP1817779B1 (en) | Regularly arrayed nanostructured material | |
US20070228606A1 (en) | Nanoscale structures and methods of preparation | |
Sen et al. | Novel polysulfone–spray-dried silica composite membrane for water purification: Preparation, characterization and performance evaluation | |
JP4342338B2 (ja) | 3次元多孔質構造体とその製造方法 | |
Xu et al. | Mesoscopic rings by controlled wetting of particle imprinted templates | |
JP4556055B2 (ja) | ハニカム構造体を鋳型としたメゾ構造体の作製 | |
Guo et al. | Construction of porous poly (L-lactic acid) surface via carbon quantum dots-assisted static Breath-Figures method | |
JP3406635B2 (ja) | マクロ孔及びミクロ孔が分散したシリカ多孔体及び製造方法 | |
KR101733856B1 (ko) | 선택적 투과성의 미세캡슐 및 이의 제조방법 | |
JP4579840B2 (ja) | ハニカム構造を有する生分解性フィルムの製造方法 | |
JP3634110B2 (ja) | 徐放性粒子の製造方法 | |
KR102107749B1 (ko) | 막 표면 및 기공 내에 성장되어 소수성 개질된 세라믹 나노 입자를 이용한 초소수성 분리막 및 이의 제조방법 | |
JPH0628721B2 (ja) | セラミック中空球の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050607 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080220 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080226 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080428 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091006 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20091202 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100105 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100126 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4450596 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130205 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140205 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |