JPH0251235B2 - - Google Patents

Info

Publication number
JPH0251235B2
JPH0251235B2 JP59070670A JP7067084A JPH0251235B2 JP H0251235 B2 JPH0251235 B2 JP H0251235B2 JP 59070670 A JP59070670 A JP 59070670A JP 7067084 A JP7067084 A JP 7067084A JP H0251235 B2 JPH0251235 B2 JP H0251235B2
Authority
JP
Japan
Prior art keywords
heater
powder
resistance
ceramic
mosi
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 - Lifetime
Application number
JP59070670A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60216484A (ja
Inventor
Nobue Ito
Kinya Atsumi
Hitoshi Yoshida
Morihiro Atsumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Soken Inc
Original Assignee
Nippon Soken Inc
NipponDenso Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Soken Inc, NipponDenso Co Ltd filed Critical Nippon Soken Inc
Priority to JP59070670A priority Critical patent/JPS60216484A/ja
Priority to US06/717,875 priority patent/US4634837A/en
Priority to DE19853512483 priority patent/DE3512483A1/de
Publication of JPS60216484A publication Critical patent/JPS60216484A/ja
Publication of JPH0251235B2 publication Critical patent/JPH0251235B2/ja
Granted legal-status Critical Current

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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/58085—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicides
    • C04B35/58092—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicides based on refractory metal silicides
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
    • C04B35/593—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride obtained by pressure sintering
    • 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
    • C04B35/645—Pressure sintering
    • 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
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/001—Joining burned ceramic articles with other burned ceramic articles or other articles by heating directly with other burned ceramic articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • 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
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/786—Micrometer sized grains, i.e. from 1 to 100 micron
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/36—Non-oxidic
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/36—Non-oxidic
    • C04B2237/368—Silicon nitride
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/56—Using constraining layers before or during sintering
    • C04B2237/568—Using constraining layers before or during sintering made of non-oxide ceramics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Resistance Heating (AREA)
  • Ceramic Products (AREA)
JP59070670A 1984-04-09 1984-04-09 セラミツクヒ−タ Granted JPS60216484A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP59070670A JPS60216484A (ja) 1984-04-09 1984-04-09 セラミツクヒ−タ
US06/717,875 US4634837A (en) 1984-04-09 1985-03-29 Sintered ceramic heater element
DE19853512483 DE3512483A1 (de) 1984-04-09 1985-04-04 Keramische heizvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59070670A JPS60216484A (ja) 1984-04-09 1984-04-09 セラミツクヒ−タ

Publications (2)

Publication Number Publication Date
JPS60216484A JPS60216484A (ja) 1985-10-29
JPH0251235B2 true JPH0251235B2 (en]) 1990-11-06

Family

ID=13438327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59070670A Granted JPS60216484A (ja) 1984-04-09 1984-04-09 セラミツクヒ−タ

Country Status (3)

Country Link
US (1) US4634837A (en])
JP (1) JPS60216484A (en])
DE (1) DE3512483A1 (en])

Families Citing this family (53)

* Cited by examiner, † Cited by third party
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JPH0617272B2 (ja) * 1986-02-12 1994-03-09 株式会社日本自動車部品総合研究所 窒化珪素−アルミナ系複合セラミツクスおよびその製造方法
DE3734274C2 (de) * 1986-10-09 1996-07-11 Nippon Denso Co Keramische Glühkerze und Verfahren zu deren Herstellung
JP2616931B2 (ja) * 1987-09-01 1997-06-04 株式会社デンソー グロープラグのヒータ支持体
DE3733192C1 (de) * 1987-10-01 1988-10-06 Bosch Gmbh Robert PTC-Temperaturfuehler sowie Verfahren zur Herstellung von PTC-Temperaturfuehlerelementen fuer den PTC-Temperaturfuehler
DE3805933C2 (de) * 1988-02-25 1998-04-23 Bosch Gmbh Robert Einrichtung zum Einspritzen von Kraftstoff
US5086210A (en) * 1988-03-29 1992-02-04 Nippondenso Co., Ltd. Mo5 Si3 C ceramic material and glow plug heating element made of the same
JPH01313362A (ja) * 1988-06-09 1989-12-18 Ngk Spark Plug Co Ltd セラミック発熱体およびその製造方法
US5146536A (en) * 1988-11-07 1992-09-08 Westover Brooke N High temperature electric air heater with tranversely mounted PTC resistors
US5004893A (en) * 1988-11-07 1991-04-02 Westover Brooke N High-speed, high temperature resistance heater and method of making same
DE3843863A1 (de) * 1988-12-24 1990-06-28 Bosch Gmbh Robert Hochtemperatur-heizelement, verfahren zu seiner herstellung und verwendung desselben
DE3901545A1 (de) * 1989-01-20 1990-08-02 Bosch Gmbh Robert Hochtemperatur-heizelement sowie verfahren zu seiner herstellung
CH681186A5 (en]) * 1989-11-09 1993-01-29 Battelle Memorial Institute
US5264681A (en) * 1991-02-14 1993-11-23 Ngk Spark Plug Co., Ltd. Ceramic heater
US5498855A (en) * 1992-09-11 1996-03-12 Philip Morris Incorporated Electrically powered ceramic composite heater
US5304778A (en) * 1992-11-23 1994-04-19 Electrofuel Manufacturing Co. Glow plug with improved composite sintered silicon nitride ceramic heater
EP0635993B1 (en) * 1993-07-20 2000-05-17 TDK Corporation Ceramic heater
DE4325606A1 (de) * 1993-07-30 1995-02-09 Bach Wolfdietrich Keramisches Heizelement sowie Verfahren zur Herstellung eines solchen Heizelements
US5367994A (en) * 1993-10-15 1994-11-29 Detroit Diesel Corporation Method of operating a diesel engine utilizing a continuously powered glow plug
JP3192073B2 (ja) * 1995-11-08 2001-07-23 株式会社ユニシアジェックス セラミックスヒータ
US5880439A (en) * 1996-03-12 1999-03-09 Philip Morris Incorporated Functionally stepped, resistive ceramic
BR9700466A (pt) * 1996-03-29 1998-11-03 Ngk Spark Plug Co Aquecedor cerâmico
BR9700464A (pt) * 1996-03-29 1998-11-03 Ngk Spark Plug Co Aquecedor cerâmico
US5676100A (en) * 1996-08-30 1997-10-14 Caterpillar Inc. Glow plug assembly
JP3411498B2 (ja) * 1997-04-23 2003-06-03 日本特殊陶業株式会社 セラミックヒータ、その製造方法、及びセラミックグロープラグ
US6274855B1 (en) * 1998-11-17 2001-08-14 Ngk Spark Plug Co., Ltd. Heating resistor for ceramic heaters, ceramic heaters and method of manufacturing ceramic heaters
DE19860919C1 (de) * 1998-12-04 2000-02-10 Bosch Gmbh Robert Keramisches Heizelement und Verfahren zu dessen Herstellung
US6028292A (en) * 1998-12-21 2000-02-22 Saint-Gobain Industrial Ceramics, Inc. Ceramic igniter having improved oxidation resistance, and method of using same
US6274079B1 (en) 1999-06-23 2001-08-14 Robert Bosch Gmbh Ceramic pin heating element with integrated connector contacts and method for making same
DE19952127C2 (de) * 1999-10-29 2001-10-18 Bosch Gmbh Robert Hochtemperaturbeständiger, mechanisch stabiler Temperaturfühler
AU2002335638B2 (en) 2001-08-18 2006-04-27 Saint-Gobain Ceramics & Plastics, Inc. Ceramic igniters with sealed electrical contact portion
DE10151617B4 (de) * 2001-10-23 2004-04-29 Webasto Thermosysteme International Gmbh Heizbares keramisches Element
US6878903B2 (en) * 2003-04-16 2005-04-12 Fleming Circle Associates, Llc Glow plug
FR2917405B1 (fr) * 2007-06-18 2010-12-10 Vibro Meter France Procede de preparation d'une ceramique frittee, ceramique ainsi obtenue et bougie d'allumage la comportant
US20090206069A1 (en) * 2007-09-23 2009-08-20 Saint-Gobain Ceramics & Plastics, Inc. Heating element systems
DE102007051482A1 (de) 2007-10-25 2009-04-30 Evonik Röhm Gmbh Verfahren zur Herstellung von beschichteten Formkörpern
BRPI0821671A2 (pt) * 2007-12-29 2015-06-16 Saint Gobain Ceramics Elementos de aquecimento cerâmicos
US20090179023A1 (en) * 2007-12-29 2009-07-16 Saint-Gobain Ceramics & Plastics, Inc. Ceramic heating elements having open-face structure and methods of fabrication thereof
EP2100525A1 (en) 2008-03-14 2009-09-16 Philip Morris Products S.A. Electrically heated aerosol generating system and method
EP2110034A1 (en) 2008-04-17 2009-10-21 Philip Morris Products S.A. An electrically heated smoking system
EP2113178A1 (en) 2008-04-30 2009-11-04 Philip Morris Products S.A. An electrically heated smoking system having a liquid storage portion
DE102008035036B3 (de) * 2008-07-26 2010-04-15 Beru Ag Keramische Glühkerze
DE102008036836A1 (de) 2008-08-07 2010-02-11 Epcos Ag Formkörper, Heizungsvorrichtung und Verfahren zur Herstellung eines Formkörpers
DE102008036835A1 (de) 2008-08-07 2010-02-18 Epcos Ag Heizungsvorrichtung und Verfahren zur Herstellung der Heizungsvorrichtung
WO2010033797A1 (en) * 2008-09-18 2010-03-25 Saint-Gobain Ceramics & Plastics, Inc. Resistance heater air heating device
EP2253233A1 (en) 2009-05-21 2010-11-24 Philip Morris Products S.A. An electrically heated smoking system
EP2319334A1 (en) 2009-10-27 2011-05-11 Philip Morris Products S.A. A smoking system having a liquid storage portion
EP2327318A1 (en) 2009-11-27 2011-06-01 Philip Morris Products S.A. An electrically heated smoking system with internal or external heater
DE102010002164A1 (de) 2010-02-19 2011-10-06 Evonik Röhm Gmbh Verfahren zur Herstellung von beschichteten Formkörpern
US8534825B2 (en) * 2011-02-11 2013-09-17 Xerox Corporation Radiant heater for print media
US9326547B2 (en) 2012-01-31 2016-05-03 Altria Client Services Llc Electronic vaping article
CN104396342B (zh) * 2012-06-29 2016-02-24 京瓷株式会社 加热器及具备该加热器的电热塞
WO2014175424A1 (ja) * 2013-04-27 2014-10-30 京セラ株式会社 セラミックヒータ
CN112314052A (zh) 2018-03-27 2021-02-02 艾斯彼控股,耐催德点火器有限公司的商定名称 用于灶具的热表面点火器

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US3895219A (en) * 1973-11-23 1975-07-15 Norton Co Composite ceramic heating element
US3875476A (en) * 1974-01-10 1975-04-01 Honeywell Inc Igniter element
US3875477A (en) * 1974-04-23 1975-04-01 Norton Co Silicon carbide resistance igniter
JPS55126989A (en) * 1979-03-24 1980-10-01 Kyoto Ceramic Ceramic heater
US4437440A (en) * 1979-06-20 1984-03-20 Ngk Spark Plug Co., Ltd. Auxiliary combustion chamber preheating device
GB2084247B (en) * 1980-08-23 1984-03-07 Kyoto Ceramic Glow plugs for use in diesel engines
US4449039A (en) * 1981-09-14 1984-05-15 Nippondenso Co., Ltd. Ceramic heater
JPS58128687A (ja) * 1982-01-27 1983-08-01 株式会社日本自動車部品総合研究所 セラミツク発熱体
JPS58150716A (ja) * 1982-03-03 1983-09-07 Nippon Soken Inc グロ−プラグ
US4486651A (en) * 1982-01-27 1984-12-04 Nippon Soken, Inc. Ceramic heater
JPS598293A (ja) * 1982-07-05 1984-01-17 株式会社日本自動車部品総合研究所 セラミツクヒ−タ
US4475029A (en) * 1982-03-02 1984-10-02 Nippondenso Co., Ltd. Ceramic heater
JPS58209084A (ja) * 1982-05-28 1983-12-05 株式会社日立製作所 直熱形ヒ−タ材
US4499366A (en) * 1982-11-25 1985-02-12 Nippondenso Co., Ltd. Ceramic heater device
US4556780A (en) * 1983-10-17 1985-12-03 Nippondenso Co., Ltd. Ceramic heater

Also Published As

Publication number Publication date
DE3512483C2 (en]) 1993-06-09
JPS60216484A (ja) 1985-10-29
DE3512483A1 (de) 1985-10-17
US4634837A (en) 1987-01-06

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term