ClassID:

201194

H01C7/025 - CPC Classification

Classification description:

Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites Perovskites, e.g. titanates

Recent Application in this class:
#1
20260059614
2026-02-26

SELF-LIMITING THICK FILM POSITIVE TEMPERATURE COEFFICIENT OF RESISTIVITY (PTCR) RESISTOR COMPOSITIONS

#2
20250022637
2025-01-16

PTC SEMICONDUCTOR CERAMIC COMPOSITION, METHOD FOR PRODUCING THE SEMICONDUCTOR CERAMIC AND HEATING DEVICE AND USE

#3
20240282489
2024-08-22

CHIP ELECTRONIC COMPONENT

#4
20240161949
2024-05-16

ELECTRONIC COMPONENT

#5
20220287187
2022-09-08

Component and method for manufacturing a component

#6
20190385768
2019-12-19

PTC Heater with Reduced Switch-On Current

#7
20190311825
2019-10-10

PTC thermistor element

#8
20190279817
2019-09-12

Ceramic dielectric and method of manufacturing the same and ceramic electronic component and electronic device

#9
20170226018
2017-08-10

SEMICONDUCTOR CERAMIC COMPOSITION AND PTC THERMISTOR

#10
20170040092
2017-02-09

Semiconductor ceramic composition and PTC thermistor

#11
20160027560
2016-01-28

PTC thermistor ceramic composition and PTC thermistor element

#12
20160005517
2016-01-07

Semiconductor ceramic composition and PTC thermistor

#13
20150371742
2015-12-24

Thermistor material and method of preparing the same

#14
20150109094
2015-04-23

Semiconductor ceramic composition, method for producing the same, and PTC element

#15
20150097650
2015-04-09

Semiconductor ceramic composition and PTC thermistor

#16
20150091690
2015-04-02

Laminated PTC thermistor element

#17
20140327513
2014-11-06

Macromolecule-based conductive composite material and PTC element

#18
20130119827
2013-05-16

Dielectric composition and ceramic electronic component including the same

#19
20130062578
2013-03-14

DIELECTRIC COMPOSITION, METHOD OF FABRICATING THE SAME, AND MULTILAYER CERAMIC ELECTRONIC COMPONENT USING THE SAME

#20
20130037904
2013-02-14

PTC element and heating-element module

#21
20130001218
2013-01-03

MOLDED BODY, HEATING DEVICE AND METHOD FOR PRODUCING A MOLDED BODY

#22
20120241990
2012-09-27

Ceramic material, method for producing the ceramic material, and resistor component comprising the ceramic material

#23
20120175361
2012-07-12

SEMICONDUCTOR CERAMIC COMPOSITION, METHOD FOR PRODUCING SAME, PTC ELEMENT AND HEAT GENERATING MODULE

#24
20120081206
2012-04-05

Semiconductor ceramic and positive-coefficient characteristic thermistor

#25
20120068127
2012-03-22

Barium titanate-based semiconductor ceramic composition and barium titanate-based semiconductor ceramic device

#26
20120043513
2012-02-23

Conductive sintered oxide, thermistor element including the same, and temperature sensor including the same

#27
20110234364
2011-09-29

Semiconductor ceramic and positive temperature coefficient thermistor

#28
20110215895
2011-09-08

Semiconductor ceramic and positive temperature coefficient thermistor

#29
20110215894
2011-09-08

Semiconductor ceramic and positive temperature coefficient thermistor

#30
20110210815
2011-09-01

Semiconductor ceramic and positive temperature coefficient thermistor

#31
20110186711
2011-08-04

Molded object, heating device and method for producing a molded object

#32
20110169123
2011-07-14

Barium titanate-based semiconductor ceramic composition and PTC thermistor

#33
20110062147
2011-03-17

SELF-REGULATING ELECTRICAL RESISTANCE HEATING ELEMENT

#34
20110011848
2011-01-20

Process for producing semiconductive porcelain composition and heater employing semiconductive porcelain composition

#35
20100279847
2010-11-04

SEMICONDUCTOR CERAMIC COMPOSITION

#36
20100102052
2010-04-29

SELF-REGULATING ELECTRICAL RESISTANCE HEATING ELEMENT

#37
20100084619
2010-04-08

Semiconductor ceramic material

#38
20100075825
2010-03-25

Semiconductor porcelain composition and method of producing the same

#39
20100075824
2010-03-25

Semiconductor ceramic composition and method for producing the same

#40
20100014213
2010-01-21

Electrical component

#41
20100012905
2010-01-21

Semiconductor ceramic composition and process for producing the same

#42
20100001828
2010-01-07

Multilayer positive temperature coefficient thermistor

#43
20090212041
2009-08-27

Heating element

#44
20090201121
2009-08-13

Barium titanate-based semiconductor porcelain composition and PTC element including the same

#45
20090167481
2009-07-02

Electrical PTC thermistor component, and method for the production thereof

#46
20090148802
2009-06-11

PROCESS FOR HEATING A FLUID AND AN INJECTION MOLDED MOLDING

#47
20090148657
2009-06-11

Injection Molded PTC-Ceramics

#48
20090105064
2009-04-23

SEMICONDUCTOR CERAMIC COMPOSITION AND METHOD FOR PRODUCING THE SAME

#49
20090057626
2009-03-05

Semiconductor ceramic composition and method for producing the same

#50
20090036293
2009-02-05

Semiconductor ceramic composition

#51
20090016409
2009-01-15

Sintered electroconductive oxide, thermister element using sintered electroconductive oxide, and temperature sensor using thermister element

#52
20080309448
2008-12-18

Stacked PTC thermistor and process for its production

#53
20080286185
2008-11-20

Method of producing semiconductor porcelain composition

#54
20080239627
2008-10-02

High-temperature dielectric materials and capacitors made therefrom

#55
20080204187
2008-08-28

Multilayer positive temperature coefficient thermistor

#56
20080204186
2008-08-28

Multilayer positive temperature coefficient thermistor

#57
20080170977
2008-07-17

Semiconductor porcelain composition and method of producing the same

#58
20080006796
2008-01-10

ARTICLE AND ASSOCIATED METHOD

#59
20070202257
2007-08-30

Production method of multilayer ceramic electronic device

#60
20070188295
2007-08-16

Thermistor element, thermistor element production method and thermistor temperature sensor

#61
20070115090
2007-05-24

Multilayer positive temperature coefficient thermistor and method for designing the same

#62
20070001801
2007-01-04

Starter relay

#63
20060258040
2006-11-16

Microsensor with ferroelectric material and method for fabricating the same

#64
20060186385
2006-08-24

Sintered compact for thermistor element, process for producing the same, thermistor element and temperature sensor

#65
18812384
2025-05-13

Self-limiting thick film positive temperature coefficient of resistivity (PTCR) resistor compositions