JP3134236B2 - α−グリコシル−Ｌ−アスコルビン酸高含有物の製造方法とその製造のための分離システム - Google Patents
α−グリコシル−Ｌ−アスコルビン酸高含有物の製造方法とその製造のための分離システムInfo
- Publication number
- JP3134236B2 JP3134236B2 JP04057617A JP5761792A JP3134236B2 JP 3134236 B2 JP3134236 B2 JP 3134236B2 JP 04057617 A JP04057617 A JP 04057617A JP 5761792 A JP5761792 A JP 5761792A JP 3134236 B2 JP3134236 B2 JP 3134236B2
- Authority
- JP
- Japan
- Prior art keywords
- ascorbic acid
- glycosyl
- exchange membrane
- anion exchange
- producing
- 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
- 229960005070 ascorbic acid Drugs 0.000 title claims description 167
- 239000002211 L-ascorbic acid Substances 0.000 title claims description 146
- 238000000926 separation method Methods 0.000 title claims description 28
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 164
- 235000000069 L-ascorbic acid Nutrition 0.000 claims description 57
- 239000003011 anion exchange membrane Substances 0.000 claims description 36
- 239000002994 raw material Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 31
- 239000000243 solution Substances 0.000 claims description 31
- 239000012528 membrane Substances 0.000 claims description 27
- 150000001720 carbohydrates Chemical class 0.000 claims description 26
- 238000000909 electrodialysis Methods 0.000 claims description 24
- 239000011668 ascorbic acid Substances 0.000 claims description 23
- 235000010323 ascorbic acid Nutrition 0.000 claims description 22
- MLSJBGYKDYSOAE-DCWMUDTNSA-N L-Ascorbic acid-2-glucoside Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O[C@@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)O)=C1O MLSJBGYKDYSOAE-DCWMUDTNSA-N 0.000 claims description 21
- 239000007864 aqueous solution Substances 0.000 claims description 20
- 238000005341 cation exchange Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 239000003014 ion exchange membrane Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 description 16
- 239000000126 substance Substances 0.000 description 12
- 235000013305 food Nutrition 0.000 description 11
- 235000000346 sugar Nutrition 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000002537 cosmetic Substances 0.000 description 8
- 239000003814 drug Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 102000051366 Glycosyltransferases Human genes 0.000 description 6
- 108700023372 Glycosyltransferases Proteins 0.000 description 6
- -1 α-glucosyl Chemical group 0.000 description 6
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 5
- 229920003934 Aciplex® Polymers 0.000 description 5
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 5
- 102100022624 Glucoamylase Human genes 0.000 description 5
- 229930003268 Vitamin C Natural products 0.000 description 5
- 239000003957 anion exchange resin Substances 0.000 description 5
- 239000003729 cation exchange resin Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 238000010612 desalination reaction Methods 0.000 description 5
- 239000000203 mixture Chemical class 0.000 description 5
- 239000012466 permeate Substances 0.000 description 5
- 235000019154 vitamin C Nutrition 0.000 description 5
- 239000011718 vitamin C Substances 0.000 description 5
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 4
- 108010073178 Glucan 1,4-alpha-Glucosidase Proteins 0.000 description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 4
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 4
- 150000001450 anions Chemical class 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- 235000006708 antioxidants Nutrition 0.000 description 4
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 4
- 238000004440 column chromatography Methods 0.000 description 4
- 239000003623 enhancer Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000001766 physiological effect Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 239000013543 active substance Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000011033 desalting Methods 0.000 description 3
- 238000000502 dialysis Methods 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000002336 sorption--desorption measurement Methods 0.000 description 3
- 150000008163 sugars Chemical class 0.000 description 3
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 3
- 108010025880 Cyclomaltodextrin glucanotransferase Proteins 0.000 description 2
- 239000004375 Dextrin Substances 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 108090000637 alpha-Amylases Proteins 0.000 description 2
- 229940072107 ascorbate Drugs 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 235000019425 dextrin Nutrition 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000006911 enzymatic reaction Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000013355 food flavoring agent Nutrition 0.000 description 2
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006276 transfer reaction Methods 0.000 description 2
- 239000004382 Amylase Substances 0.000 description 1
- 102000013142 Amylases Human genes 0.000 description 1
- 108010065511 Amylases Proteins 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- CIWBSHSKHKDKBQ-MVHIGOERSA-N D-ascorbic acid Chemical compound OC[C@@H](O)[C@@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-MVHIGOERSA-N 0.000 description 1
- 239000004129 EU approved improving agent Substances 0.000 description 1
- 150000000996 L-ascorbic acids Chemical class 0.000 description 1
- 102100024295 Maltase-glucoamylase Human genes 0.000 description 1
- 102100026367 Pancreatic alpha-amylase Human genes 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 102000004139 alpha-Amylases Human genes 0.000 description 1
- 125000003691 alpha-D-glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- 108010028144 alpha-Glucosidases Proteins 0.000 description 1
- 229940024171 alpha-amylase Drugs 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000007854 depigmenting agent Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 239000012527 feed solution Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229940124597 therapeutic agent Drugs 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H17/00—Compounds containing heterocyclic radicals directly attached to hetero atoms of saccharide radicals
- C07H17/04—Heterocyclic radicals containing only oxygen as ring hetero atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H3/00—Compounds containing only hydrogen atoms and saccharide radicals having only carbon, hydrogen, and oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Saccharide Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cosmetics (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04057617A JP3134236B2 (ja) | 1992-01-30 | 1992-01-30 | α−グリコシル−Ｌ−アスコルビン酸高含有物の製造方法とその製造のための分離システム |
| US07/990,081 US5338420A (en) | 1992-01-30 | 1992-12-14 | Process for preparing high α-glycosyl-L-ascorbic acid, and separation system for the process |
| TW081110098A TW293822B (OSRAM) | 1992-01-30 | 1992-12-16 | |
| EP93300636A EP0554090B1 (en) | 1992-01-30 | 1993-01-28 | Process for preparing high alpha-glycosyl-L-ascorbic acid |
| KR1019930001063D KR100244910B1 (ko) | 1992-01-30 | 1993-01-28 | 알파-글리코실-l-아스코르브산 고함유물의 제조방법 및 그 제조를 위한 분리 시스템 |
| KR1019930001063A KR930016433A (ko) | 1992-01-30 | 1993-01-28 | α-글리코실-L-아스코르브산 고함유물의 제조방법 및 그 제조를 위한 분리 시스템 |
| DE69315234T DE69315234T2 (de) | 1992-01-30 | 1993-01-28 | Verfahren zur Herstellung von Alpha-Glykosyl- L-Ascorbinsäure mit hohem Produktanteil |
| US08/434,327 US5630923A (en) | 1992-01-30 | 1995-05-02 | Separation system for preparing high α-glycosyl-L-ascorbic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04057617A JP3134236B2 (ja) | 1992-01-30 | 1992-01-30 | α−グリコシル−Ｌ−アスコルビン酸高含有物の製造方法とその製造のための分離システム |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05208991A JPH05208991A (ja) | 1993-08-20 |
| JP3134236B2 true JP3134236B2 (ja) | 2001-02-13 |
Family
ID=13060842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04057617A Expired - Fee Related JP3134236B2 (ja) | 1992-01-30 | 1992-01-30 | α−グリコシル−Ｌ−アスコルビン酸高含有物の製造方法とその製造のための分離システム |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US5338420A (OSRAM) |
| EP (1) | EP0554090B1 (OSRAM) |
| JP (1) | JP3134236B2 (OSRAM) |
| KR (2) | KR100244910B1 (OSRAM) |
| DE (1) | DE69315234T2 (OSRAM) |
| TW (1) | TW293822B (OSRAM) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2832848B2 (ja) * | 1989-10-21 | 1998-12-09 | 株式会社林原生物化学研究所 | 結晶２―Ｏ―α―Ｄ―グルコピラノシル―Ｌ―アスコルビン酸とその製造方法並びに用途 |
| DE19605683A1 (de) * | 1996-02-16 | 1997-09-11 | Forschungszentrum Juelich Gmbh | Verfahren zur Trennung von Substanzen mittels einer geeigneten Membran |
| EP1017481A4 (en) * | 1997-06-30 | 2002-07-17 | Electrosynthesis Co Inc | ELECTROCHEMICAL METHOD FOR THE RECOVERY OF ASCORBIC ACID |
| US6187570B1 (en) * | 1998-05-26 | 2001-02-13 | The Electrosynthesis Company, Inc. | Electrodialysis methods for purification and recovery of gluconic acid derivatives |
| US20020122873A1 (en) * | 2000-01-05 | 2002-09-05 | Mirkin Chad A. | Nanolithography methods and products therefor and produced thereby |
| AU2002239740A1 (en) * | 2000-10-20 | 2002-06-11 | Chad A. Mirkin | Nanolithography methods and products therefor and produced thereby |
| CN1507440A (zh) | 2000-12-22 | 2004-06-23 | �Ϻ���ͨ��ѧ | 生产l-抗坏血酸的连续方法 |
| ATE303373T1 (de) | 2000-12-22 | 2005-09-15 | Eastman Chem Co | Verfahren zur herstellung von ascorbinsäure in gegenwart eines sulfits |
| ATE475652T1 (de) | 2001-02-21 | 2010-08-15 | Mitsubishi Tanabe Pharma Corp | Chinazolinderivate |
| US6830671B2 (en) * | 2001-06-29 | 2004-12-14 | Tokuyama Corporation | Ion-exchange membrane |
| US6740762B2 (en) | 2001-08-24 | 2004-05-25 | Eastman Chemical Company | Process for ascorbic acids using alkaline earth silicate catalysts |
| US6716997B1 (en) | 2001-10-09 | 2004-04-06 | Eastman Chemical Company | Systems and methods for generation of ascorbic acid with reduced color |
| JP4703950B2 (ja) * | 2003-07-23 | 2011-06-15 | 花王株式会社 | 糖リン酸エステルの精製法 |
| BRPI0609575B1 (pt) * | 2005-03-23 | 2016-07-12 | Mary Kay Inc | composições para clareamento da pele |
| US20100260695A1 (en) * | 2009-04-09 | 2010-10-14 | Mary Kay Inc. | Combination of plant extracts to improve skin tone |
| BR112012004864B1 (pt) * | 2009-09-03 | 2019-06-25 | Hayashibara Co., Ltd. | Processo para produção de uma composição particulada |
| US20110172180A1 (en) | 2010-01-13 | 2011-07-14 | Allergan Industrie. Sas | Heat stable hyaluronic acid compositions for dermatological use |
| US9114188B2 (en) | 2010-01-13 | 2015-08-25 | Allergan, Industrie, S.A.S. | Stable hydrogel compositions including additives |
| US9206215B2 (en) | 2010-09-07 | 2015-12-08 | Hayashibara Co., Ltd. | Hydrous crystalline 2-O-α-D-glucosyl-L-ascorbic acid, particulate composition comprising the same, their preparation and uses |
| JP5553899B2 (ja) * | 2011-03-07 | 2014-07-16 | 株式会社林原 | ２−Ｏ−α−Ｄ−グルコシル−Ｌ−アスコルビン酸無水結晶含有粉末の製造方法 |
| EP2714002B1 (en) | 2011-06-03 | 2019-04-03 | Allergan, Inc. | Dermal filler compositions including antioxidants |
| CN103755756B (zh) * | 2014-02-11 | 2015-07-08 | 江苏诚信药业有限公司 | 一种制备维生素c葡萄糖苷的工艺系统及其工艺方法 |
| WO2018021544A1 (ja) * | 2016-07-29 | 2018-02-01 | カーリットホールディングス株式会社 | ６－アシル－２－Ｏ－α－Ｄ－グリコシル－Ｌ－アスコルビン酸及びそれを含有する組成物並びにそれらの製造方法 |
| TW201827038A (zh) * | 2016-11-30 | 2018-08-01 | 日商佳里多控股公司 | 含有２－Ｏ－α－Ｄ－麥芽糖基－Ｌ－抗壞血酸之組成物及其製造方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1210956B (it) * | 1982-11-25 | 1989-09-29 | Sigma Tau Ind Farmaceuti | Procedimento e cella elettrolitica per la preparazione di composti organici. |
| DE3621781A1 (de) * | 1985-07-05 | 1987-01-15 | Takeda Chemical Industries Ltd | Verfahren zur reinigung von l-ascorbinsaeure |
| ATE123306T1 (de) * | 1989-05-19 | 1995-06-15 | Hayashibara Biochem Lab | Alpha-glycosyl-l-ascorbinsäure und ihre herstellung und verwendungen. |
| JP2832848B2 (ja) * | 1989-10-21 | 1998-12-09 | 株式会社林原生物化学研究所 | 結晶２―Ｏ―α―Ｄ―グルコピラノシル―Ｌ―アスコルビン酸とその製造方法並びに用途 |
-
1992
- 1992-01-30 JP JP04057617A patent/JP3134236B2/ja not_active Expired - Fee Related
- 1992-12-14 US US07/990,081 patent/US5338420A/en not_active Expired - Lifetime
- 1992-12-16 TW TW081110098A patent/TW293822B/zh active
-
1993
- 1993-01-28 DE DE69315234T patent/DE69315234T2/de not_active Expired - Lifetime
- 1993-01-28 KR KR1019930001063D patent/KR100244910B1/ko not_active Expired - Fee Related
- 1993-01-28 KR KR1019930001063A patent/KR930016433A/ko active Granted
- 1993-01-28 EP EP93300636A patent/EP0554090B1/en not_active Expired - Lifetime
-
1995
- 1995-05-02 US US08/434,327 patent/US5630923A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US5338420A (en) | 1994-08-16 |
| DE69315234T2 (de) | 1998-05-20 |
| JPH05208991A (ja) | 1993-08-20 |
| DE69315234D1 (de) | 1998-01-02 |
| EP0554090A2 (en) | 1993-08-04 |
| EP0554090A3 (en) | 1993-10-06 |
| TW293822B (OSRAM) | 1996-12-21 |
| EP0554090B1 (en) | 1997-11-19 |
| US5630923A (en) | 1997-05-20 |
| KR100244910B1 (ko) | 2000-03-02 |
| KR930016433A (ko) | 1993-08-26 |
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