GB2174878B - Heat-generating resistor and heat-generating resistance element using same - Google Patents
Heat-generating resistor and heat-generating resistance element using sameInfo
- Publication number
- GB2174878B GB2174878B GB8607088A GB8607088A GB2174878B GB 2174878 B GB2174878 B GB 2174878B GB 8607088 A GB8607088 A GB 8607088A GB 8607088 A GB8607088 A GB 8607088A GB 2174878 B GB2174878 B GB 2174878B
- Authority
- GB
- United Kingdom
- Prior art keywords
- heat
- generating
- same
- resistance element
- resistor
- 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
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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C03C3/00—Glass compositions
- C03C3/32—Non-oxide glass compositions, e.g. binary or ternary halides, sulfides or nitrides of germanium, selenium or tellurium
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/466—Halogenated compounds, e.g. perfluor-compounds
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/82—Coating or impregnation with organic materials
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/145—Carbon only, e.g. carbon black, graphite
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/148—Silicon, e.g. silicon carbide, magnesium silicide, heating transistors or diodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00844—Uses not provided for elsewhere in C04B2111/00 for electronic applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/011—Heaters using laterally extending conductive material as connecting means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/013—Heaters using resistive films or coatings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Vapour Deposition (AREA)
- Photovoltaic Devices (AREA)
Applications Claiming Priority (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60058842A JPS61218110A (ja) | 1985-03-23 | 1985-03-23 | 発熱抵抗体 |
| JP60058523A JPS61218101A (ja) | 1985-03-25 | 1985-03-25 | 発熱抵抗体 |
| JP60058524A JPS61218102A (ja) | 1985-03-25 | 1985-03-25 | 発熱抵抗体 |
| JP60058525A JPS61218103A (ja) | 1985-03-25 | 1985-03-25 | 発熱抵抗体 |
| JP60058526A JPS61218104A (ja) | 1985-03-25 | 1985-03-25 | 発熱抵抗体 |
| JP60059387A JPS61220289A (ja) | 1985-03-26 | 1985-03-26 | 発熱抵抗体 |
| JP60059386A JPS61220288A (ja) | 1985-03-26 | 1985-03-26 | 発熱抵抗体 |
| JP60059385A JPS61220287A (ja) | 1985-03-26 | 1985-03-26 | 発熱抵抗体 |
| JP60059384A JPS61220286A (ja) | 1985-03-26 | 1985-03-26 | 発熱抵抗体 |
| JP60060534A JPS61220290A (ja) | 1985-03-27 | 1985-03-27 | 発熱抵抗体 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8607088D0 GB8607088D0 (en) | 1986-04-30 |
| GB2174878A GB2174878A (en) | 1986-11-12 |
| GB2174878B true GB2174878B (en) | 1989-03-30 |
Family
ID=27580039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8607088A Expired GB2174878B (en) | 1985-03-23 | 1986-03-21 | Heat-generating resistor and heat-generating resistance element using same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4783369A (enExample) |
| DE (1) | DE3609456A1 (enExample) |
| GB (1) | GB2174878B (enExample) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860033A (en) * | 1987-02-04 | 1989-08-22 | Canon Kabushiki Kaisha | Base plate having an oxidation film and an insulating film for ink jet recording head and ink jet recording head using said base plate |
| JP2846636B2 (ja) * | 1987-12-02 | 1999-01-13 | キヤノン株式会社 | インクジェット記録ヘッド用基板の作製方法 |
| JPH0543399A (ja) * | 1991-03-08 | 1993-02-23 | Ricoh Co Ltd | 薄膜機能部材 |
| US5350720A (en) * | 1991-03-18 | 1994-09-27 | Shin-Etsu Chemical Co., Ltd. | Triple-layered ceramic heater |
| US6001480A (en) * | 1993-06-11 | 1999-12-14 | Zexel Corporation | Amorphous hard carbon film and mechanical parts coated therewith |
| KR0134942B1 (ko) * | 1993-06-11 | 1998-06-15 | 이다가끼 유끼오 | 비정질 경질 탄소막 및 그 제조 방법 |
| JPH07295409A (ja) * | 1994-04-25 | 1995-11-10 | Canon Inc | 加熱定着装置及びその製造方法 |
| GB9910841D0 (en) * | 1999-05-10 | 1999-07-07 | Univ Nanyang | Heat transfer surface |
| US20040081678A1 (en) * | 2002-08-09 | 2004-04-29 | Anthony Cincotta | Therapeutic process for the treatment of obesity and associated metabolic disorders |
| US8821915B2 (en) | 2002-08-09 | 2014-09-02 | Veroscience, Llc | Therapeutic process for the treatment of the metabolic syndrome and associated metabolic disorders |
| US9352025B2 (en) | 2009-06-05 | 2016-05-31 | Veroscience Llc | Combination of dopamine agonists plus first phase insulin secretagogues for the treatment of metabolic disorders |
| EP2721196B1 (en) | 2011-06-15 | 2019-10-30 | Tenneco Inc. | Germanium containing coating for inner surfaces of cylinder liners |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB718161A (en) * | 1951-08-25 | 1954-11-10 | Electrofilm Inc | Improvements in or relating to electric heating elements |
| GB996390A (en) * | 1960-08-19 | 1965-06-30 | Acheson Ind Inc | Heat resistant electrically conducting compositions, method of coating articles therewith and articles produced thereby |
| GB1412191A (en) * | 1972-02-29 | 1975-10-29 | Hercules Inc | Electrically conducting elastomers and electrical members embodying the same |
| GB2011729A (en) * | 1977-12-30 | 1979-07-11 | Philips Nv | Carbon film resistors |
Family Cites Families (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2671735A (en) * | 1950-07-07 | 1954-03-09 | Bell Telephone Labor Inc | Electrical resistors and methods of making them |
| DE937179C (de) * | 1952-10-23 | 1955-12-29 | Philips Nv | Verfahren zur Herstellung elektrischer Widerstaende |
| US2778743A (en) * | 1954-11-16 | 1957-01-22 | Bell Telephone Labor Inc | Method of making electrical carbonfilm resistors |
| US3292130A (en) * | 1961-07-28 | 1966-12-13 | Texas Instruments Inc | Resistor |
| US3301707A (en) * | 1962-12-27 | 1967-01-31 | Union Carbide Corp | Thin film resistors and methods of making thereof |
| US3390452A (en) * | 1963-03-29 | 1968-07-02 | Irc Inc | Method of making an electrical resistor |
| US3639165A (en) * | 1968-06-20 | 1972-02-01 | Gen Electric | Resistor thin films formed by low-pressure deposition of molybdenum and tungsten |
| US3604970A (en) * | 1968-10-14 | 1971-09-14 | Varian Associates | Nonelectron emissive electrode structure utilizing ion-plated nonemissive coatings |
| US3645783A (en) * | 1970-06-03 | 1972-02-29 | Infrared Ind Inc | Thin film planar resistor |
| LU67513A1 (enExample) * | 1972-11-20 | 1973-07-13 | ||
| DE2333495C3 (de) * | 1973-07-02 | 1979-07-19 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zum Herstellen eines elektrischen Schichtwiderstandes |
| US3882363A (en) * | 1974-03-07 | 1975-05-06 | Westinghouse Electric Corp | Photocontrol with automatic light operated reset |
| US3938526A (en) * | 1974-05-20 | 1976-02-17 | Anderson Weston A | Electrical acupuncture needle heater |
| US4060660A (en) * | 1976-01-15 | 1977-11-29 | Rca Corporation | Deposition of transparent amorphous carbon films |
| US4036786A (en) * | 1976-03-26 | 1977-07-19 | Globe-Union Inc. | Fluorinated carbon composition and resistor utilizing same |
| GB1582231A (en) * | 1976-08-13 | 1981-01-07 | Nat Res Dev | Application of a layer of carbonaceous material to a surface |
| DE2719988C2 (de) * | 1977-05-04 | 1983-01-05 | Siemens AG, 1000 Berlin und 8000 München | Amorphe, Tantal enthaltende mindestens bis 300 Grad C temperaturstabile Metallschicht und Verfahren zu ihrer Herstellung |
| US4296309A (en) * | 1977-05-19 | 1981-10-20 | Canon Kabushiki Kaisha | Thermal head |
| DE2724498C2 (de) * | 1977-05-31 | 1982-06-03 | Siemens AG, 1000 Berlin und 8000 München | Elektrischer Schichtwiderstand und Verfahren zu seiner Herstellung |
| US4487709A (en) * | 1979-03-29 | 1984-12-11 | Showa Denko K.K. | Process for producing electrically conductive high polymer of acetylene |
| JPS5617988A (en) * | 1979-07-24 | 1981-02-20 | Toshio Hirai | Electroconductive si3n44c type noncrystalline material by chemical gas phase deposition and its manufacture |
| JPS5649521A (en) * | 1979-09-28 | 1981-05-06 | Yasutoshi Kajiwara | Formation of thin film |
| DE3040972A1 (de) * | 1979-10-30 | 1981-05-14 | Fuji Photo Film Co. Ltd., Minami-Ashigara, Kanagawa | Elektrophotographisches lichtempfindliches material und verfahren zu dessen herstellung |
| GB2083841B (en) * | 1980-08-21 | 1985-03-13 | Secr Defence | Glow discharge coating |
| EP0049032B1 (en) * | 1980-08-21 | 1986-09-17 | National Research Development Corporation | Coating insulating materials by glow discharge |
| US4522663A (en) * | 1980-09-09 | 1985-06-11 | Sovonics Solar Systems | Method for optimizing photoresponsive amorphous alloys and devices |
| DE3130497A1 (de) * | 1981-07-23 | 1983-02-10 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung luftstabiler, elektrisch leitfaehiger, polymerer polyensysteme und ihre verwendung in der elektrotechnik und zur antistatischen ausruestung von kunststoffen |
| JPS5842472A (ja) * | 1981-09-07 | 1983-03-11 | Semiconductor Energy Lab Co Ltd | サ−マルヘツド |
| JPS5842473A (ja) * | 1981-09-07 | 1983-03-11 | Semiconductor Energy Lab Co Ltd | サ−マルヘツド作製方法 |
| FR2514743B1 (fr) * | 1981-10-21 | 1986-05-09 | Rca Corp | Pellicule amorphe a base de carbone, du type diamant, et son procede de fabrication |
| US4436797A (en) * | 1982-06-30 | 1984-03-13 | International Business Machines Corporation | X-Ray mask |
| JPS59179152A (ja) * | 1983-03-31 | 1984-10-11 | Agency Of Ind Science & Technol | アモルファスシリコン半導体薄膜の製造方法 |
| JPH0624855B2 (ja) * | 1983-04-20 | 1994-04-06 | キヤノン株式会社 | 液体噴射記録ヘッド |
| JPS59200248A (ja) * | 1983-04-28 | 1984-11-13 | Canon Inc | 像形成部材の製造法 |
| DE3316182A1 (de) * | 1983-05-04 | 1984-11-08 | Basf Ag, 6700 Ludwigshafen | Verwendung von pyrrol-polymerisaten als elektrische heizelemente |
| JPH0783031B2 (ja) * | 1984-03-08 | 1995-09-06 | 敏和 須田 | ▲ii▼−▲v▼族化合物半導体の薄膜又は結晶の製造方法 |
| CA1232228A (en) * | 1984-03-13 | 1988-02-02 | Tatsuro Miyasato | Coating film and method and apparatus for producing the same |
-
1986
- 1986-03-20 US US06/842,118 patent/US4783369A/en not_active Expired - Lifetime
- 1986-03-20 DE DE19863609456 patent/DE3609456A1/de active Granted
- 1986-03-21 GB GB8607088A patent/GB2174878B/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB718161A (en) * | 1951-08-25 | 1954-11-10 | Electrofilm Inc | Improvements in or relating to electric heating elements |
| GB996390A (en) * | 1960-08-19 | 1965-06-30 | Acheson Ind Inc | Heat resistant electrically conducting compositions, method of coating articles therewith and articles produced thereby |
| GB1412191A (en) * | 1972-02-29 | 1975-10-29 | Hercules Inc | Electrically conducting elastomers and electrical members embodying the same |
| GB2011729A (en) * | 1977-12-30 | 1979-07-11 | Philips Nv | Carbon film resistors |
Also Published As
| Publication number | Publication date |
|---|---|
| US4783369A (en) | 1988-11-08 |
| DE3609456A1 (de) | 1986-10-02 |
| GB2174878A (en) | 1986-11-12 |
| GB8607088D0 (en) | 1986-04-30 |
| DE3609456C2 (enExample) | 1990-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PE20 | Patent expired after termination of 20 years |
Effective date: 20060320 |