FR2304589B1 - - Google Patents
Info
- Publication number
- FR2304589B1 FR2304589B1 FR7607696A FR7607696A FR2304589B1 FR 2304589 B1 FR2304589 B1 FR 2304589B1 FR 7607696 A FR7607696 A FR 7607696A FR 7607696 A FR7607696 A FR 7607696A FR 2304589 B1 FR2304589 B1 FR 2304589B1
- Authority
- FR
- France
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/111—Fine ceramics
- C04B35/115—Translucent or transparent products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50031769A JPS51107683A (en) | 1975-03-18 | 1975-03-18 | Taketsushotomeiaruminahatsukokan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2304589A1 FR2304589A1 (fr) | 1976-10-15 |
| FR2304589B1 true FR2304589B1 (US07922777-20110412-C00004.png) | 1979-09-21 |
Family
ID=12340241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7607696A Granted FR2304589A1 (fr) | 1975-03-18 | 1976-03-17 | Tube en alumine polycristalline transparente et lampe a vapeur metallique a haute pression utilisant un tel tube |
Country Status (7)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1597162A (en) * | 1977-03-10 | 1981-09-03 | Ngk Insulators Ltd | Transparent polycrystalline alumina and high pressure vapour discharge lamp |
| JPS5477481A (en) * | 1977-12-02 | 1979-06-20 | Ngk Insulators Ltd | Polycrystal transparent alumina light emitting tube and high voltage vapor discharge lamp using same |
| JPS6022670B2 (ja) * | 1978-05-12 | 1985-06-03 | 日本碍子株式会社 | 多結晶透明アルミナ及びその製造法ならびに高圧蒸気放射灯用発光管 |
| FR2476636A1 (fr) * | 1980-02-26 | 1981-08-28 | Euroceral | Tube en alumine translucide localement noir et son procede de fabrication |
| US4736136A (en) * | 1986-06-16 | 1988-04-05 | Gte Laboratories Incorporated | Discharge lamps with coated ceramic arc tubes and fabrication thereof |
| JP4613408B2 (ja) * | 1999-10-15 | 2011-01-19 | 日本碍子株式会社 | 高圧放電灯用発光管の製造方法 |
| WO2002007187A1 (fr) * | 2000-07-19 | 2002-01-24 | Ngk Insulators, Ltd. | Tube a arc en ceramique polycristalline pour lampe a decharge de haute brillance et procede de fabrication de ce tube |
| JP2002184352A (ja) * | 2000-07-19 | 2002-06-28 | Ngk Insulators Ltd | 高輝度放電灯用多結晶セラミックス発光管及びその製造方法 |
| US6648638B2 (en) | 2001-12-28 | 2003-11-18 | 3M Innovative Properties Company | Orthodontic appliances including polycrystalline alumina-based ceramic material, kits, and methods |
| US6878456B2 (en) | 2001-12-28 | 2005-04-12 | 3M Innovative Properties Co. | Polycrystalline translucent alumina-based ceramic material, uses, and methods |
| WO2003075312A1 (fr) * | 2002-03-07 | 2003-09-12 | Ngk Insulators,Ltd | Boitier electroluminescent pour lampe a decharge haute tension et procede de preparation d'un produit fritte d'alumine transparente polycristalline |
| US6949145B2 (en) * | 2002-04-05 | 2005-09-27 | Boc, Inc. | Vapor-assisted cryogenic cleaning |
| JP2008177151A (ja) * | 2006-09-25 | 2008-07-31 | Toshiba Lighting & Technology Corp | 高圧放電ランプ、高圧放電ランプ点灯装置および照明装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3026210A (en) * | 1961-01-03 | 1962-03-20 | Gen Electric | Transparent alumina and method of preparation |
| US3026177A (en) * | 1961-04-25 | 1962-03-20 | Gen Electric | Process for producing transparent polycrystalline alumina |
| GB1252851A (US07922777-20110412-C00004.png) * | 1969-08-27 | 1971-11-10 | ||
| US3834939A (en) * | 1970-02-19 | 1974-09-10 | Ibm | Method of forming doped silicon oxide layers on substrates and paint-on compositions useful in such methods |
| JPS4898684A (US07922777-20110412-C00004.png) * | 1972-03-27 | 1973-12-14 | ||
| US3834915A (en) * | 1972-07-24 | 1974-09-10 | Gte Sylvania Inc | Fine grain translucent alumina |
| US3875277A (en) * | 1973-07-30 | 1975-04-01 | Westinghouse Electric Corp | Method for making polycrystalline alumina arc tubes |
-
1975
- 1975-03-18 JP JP50031769A patent/JPS51107683A/ja active Pending
-
1976
- 1976-03-03 GB GB845676A patent/GB1475866A/en not_active Expired
- 1976-03-10 NL NLAANVRAGE7602507,A patent/NL176772C/xx not_active IP Right Cessation
- 1976-03-10 DE DE2609974A patent/DE2609974C3/de not_active Expired
- 1976-03-11 SU SU762340052A patent/SU651686A3/ru active
- 1976-03-17 FR FR7607696A patent/FR2304589A1/fr active Granted
-
1979
- 1979-08-28 US US06/070,472 patent/US4264541A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL176772B (nl) | 1985-01-02 |
| DE2609974B2 (de) | 1978-02-16 |
| GB1475866A (en) | 1977-06-10 |
| DE2609974A1 (de) | 1976-09-23 |
| DE2609974C3 (de) | 1978-10-19 |
| NL7602507A (nl) | 1976-09-21 |
| SU651686A3 (ru) | 1979-03-05 |
| FR2304589A1 (fr) | 1976-10-15 |
| JPS51107683A (en) | 1976-09-24 |
| NL176772C (nl) | 1985-06-03 |
| US4264541A (en) | 1981-04-28 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |