ClassID:

38638

B21D28/02 - CPC Classification

Classification description:

Shaping by press-cutting; Perforating Punching blanks or articles with or without obtaining scrap ; Notching

Sub-classes:
Recent Application in this class:
#1
20260151823
2026-06-04

METHODS OF FORMING NARROW SCORES ON CAN ENDS

#2
20260070110
2026-03-12

METHOD AND PRESS FOR INTRODUCING A DEFORMATION PATTERN INTO A SHEET

#3
20250128312
2025-04-24

PROCESS FOR THE FINE BLANKING OF WORKPIECES AND FINE BLANKING PRESS

#4
20240309981
2024-09-19

METHOD AND DEVICE FOR MANUFACTURING A PIPE T-BRANCH

#5
20240307944
2024-09-19

PRESS LINE, PRESS FORMING CONDITION CALCULATION METHOD, AND PRESS FORMING CONDITION CALCULATION PROGRAM

#6
20240033836
2024-02-01

METHODS AND APPARATUS FOR CUTTING PROFILES

#7
20240033806
2024-02-01

METHOD FOR DETERMINING THE THICKNESS OF A MATERIAL STRIP DURING THE FEED OF THE MATERIAL STRIP TO THE MACHINING ZONE OF A MACHINE TOOL

#8
20230405660
2023-12-21

PROCESSING METHOD

#9
20230385577
2023-11-30

Mounting system for industrial digital barcode reader

#10
20230378417
2023-11-23

Foreign Material Removal Device for Notching Secondary Battery

#11
20230356280
2023-11-09

MODULAR DIE AND METHOD FOR BLANKING A SHEET FOR MANUFACTURING BLANKS, TOOL PARTS FOR SUCH DIE AND USE OF SUCH DIE

#12
20230256499
2023-08-17

WORKPIECE TRANSPORT DEVICE

#13
20230256495
2023-08-17

METHOD AND APPARATUS MANUFACTURING HOT PRESS FORMED PARTS FOR MULTI-STEP PROCESS

#14
20230249278
2023-08-10

SPOT WELDING METHOD AND SPOT WELDING APPARATUS

#15
20230182244
2023-06-15

Method and device for cutting a workpiece

#16
20230037636
2023-02-09

Press apparatus and method for manufacturing different-thickness metal plate

#17
20220407400
2022-12-22

Apparatus for the assembly of lamellar packs for electrical use

#18
20220371135
2022-11-24

CORE REMOVAL PUNCH AND HOLE FORMING METHOD

#19
20220193790
2022-06-23

Drilling processing method using press

#20
20220152685
2022-05-19

Workpiece transport unit, hot pressing equipment, workpiece transport method, and hot pressing method

#21
20220055088
2022-02-24

Method for manufacturing laminated steel sheet, apparatus for manufacturing laminated steel sheet, and curable composition used for the same

#22
20210292863
2021-09-23

Non-oriented electrical steel sheet and method of manufacturing stacked core using same

#23
20210273538
2021-09-02

Method for the production of a stack of laminations

#24
20210253197
2021-08-19

Sprocket for a bicycle drive train

#25
20210213637
2021-07-15

BEVEL STUD PUNCH

#26
20210057969
2021-02-25

Manufacturing apparatus and manufacturing method for laminated iron core

#27
20210036356
2021-02-04

Electrode Sheet Rolling Apparatus, Guide Roll System Used Therein, and Method of Winding Electrode Sheet Using the Same

#28
20210031256
2021-02-04

Rotating-layering mold and press apparatus comprising rotating-layering mold

#29
20210002085
2021-01-07

Vacuum plate, sheet material handling apparatus comprising such vacuum plate, and method for making the plate

#30
20200398453
2020-12-24

DIE CUTTING INSERT AND METHOD FOR CUTTING SHEET METALS

#31
20200373085
2020-11-26

Device and method for producing transformer cores

#32
20200318686
2020-10-08

METHOD FOR MANUFACTURING A BEARING WASHER

#33
20200291999
2020-09-17

METHOD OF MANUFACTURING ROLLING BEARING RING

#34
20200282441
2020-09-10

Hot-stamped trim component

#35
20200269303
2020-08-27

PUNCHING DEVICE AND SHEARING DEVICE

#36
20200254542
2020-08-13

Blanking and trim die including an integrated power grinding tool

#37
20200251280
2020-08-06

Method and robot system for producing transformer core

#38
20200152962
2020-05-14

Notching apparatus and method for secondary battery

#39
20200122217
2020-04-23

Methods and punch handling apparatuses for the production of a workpiece

#40
20200108434
2020-04-09

Manufacturing method of middle member structure

#41
20200044230
2020-02-06

METHOD FOR MANUFACTURING ELECTRODE FOR RECHARGEABLE BATTERY

#42
20200039390
2020-02-06

Longitudinal seat adjuster

#43
20200039203
2020-02-06

Metal laminate and manufacturing method of metal laminate

#44
20190366413
2019-12-05

Press molding method and press molding apparatus

#45
20190366412
2019-12-05

Press die

#46
20190352734
2019-11-21

Method for producing a sheet metal component

#47
20190312495
2019-10-10

Punch processing method for electrical steel sheets and method for manufacturing laminated core

#48
20190305654
2019-10-03

Method of manufacturing stacked core with adhesive

#49
20190299272
2019-10-03

Machining planar workpieces

#50
20190232397
2019-08-01

METHODS AND APPARATUS FOR CUTTING PROFILES

#51
20190217371
2019-07-18

Method of machining an opening in a plurality of blanks

#52
20190202175
2019-07-04

Laminated member, laminated body, and motor

#53
20190176206
2019-06-13

Cutting device and sheet material manufacturing method

#54
20190160508
2019-05-30

Die-pressing die having dust collection passage at peripheral edge portion of roller unit

#55
20190151926
2019-05-23

Process for blanking of metal parts

#56
20190149021
2019-05-16

Method for manufacturing core plate

#57
20190115810
2019-04-18

Manufacturing method of core of rotating electrical machine, and core of rotating electrical machine

#58
20190099800
2019-04-04

Method of manufacturing laminated iron core

#59
20190099798
2019-04-04

Machining apparatus

#60
20190009324
2019-01-10

Method for processing laminated material

#61
20180354017
2018-12-13

Method for manufacturing spring member of sealing device

#62
20180350518
2018-12-06

Laminated core manufacturing apparatus and laminated core manufacturing method

#63
20180328371
2018-11-15

BACKPLATE AND METHOD OF MAKING AND USING THE SAME

#64
20180318906
2018-11-08

Processing device and processing method

#65
20180311858
2018-11-01

Apparatus and method for making corner boards for container assemblies

#66
20180274616
2018-09-27

Torsion spring

#67
20180243814
2018-08-30

Method of manufacturing rolling bearing ring

#68
20180229576
2018-08-16

Vehicle stabilizer, processing device for eye portion of stabilizer, and processing method for eye portion

#69
20180214925
2018-08-02

Method and system for producing ring-shaped member for vehicle, and synchronizer ring

#70
20180200837
2018-07-19

METHOD OF PREPARING A SHEET-METAL WORKPIECE FOR COATING

#71
20180169774
2018-06-21

Blanking and trim die including an integrated power grinding tool

#72
20180163767
2018-06-14

Nut integrated with bracket and method of manufacturing the same

#73
20180156582
2018-06-07

Ring-shaped or plate-like element and method for producing same

#74
20180154414
2018-06-07

Helical layer structure and manufacturing method of helical layer structure

#75
20180117658
2018-05-03

Steering yoke cutting equipment with automatic transporting system

#76
20180085864
2018-03-29

Methods for the production of workpieces

#77
20180085814
2018-03-29

Methods and punch handling apparatuses for the production of a workpiece

#78
20180029105
2018-02-01

Method of machining an opening in a plurality of blanks

#79
20170368594
2017-12-28

Tool assembly and method for manufacturing an automotive body panel

#80
20170368590
2017-12-28

Punch processing method for laminated iron core and method for manufacturing laminated iron core

#81
20170361369
2017-12-21

Progressive die machine and method for manufacturing laminated iron cores by using same

#82
20170360228
2017-12-21

EATING UTENSIL AND A METHOD OF MAKING THE SAME

#83
20170333971
2017-11-23

METHOD FOR PRODUCING A COMPONENT BY SUBJECTING A SHEET BAR OF STEEL TO A FORMING PROCESS

#84
20170326613
2017-11-16

HOT-STAMPED TRIM COMPONENT

#85
20170266714
2017-09-21

Processing unit and machine tool for the punching processing of workpieces

#86
20170157663
2017-06-08

METHOD FOR PRODUCING CUTLERY AND A CUTLERY BLANKING TOOL

#87
20170145696
2017-05-25

Roof edge seal and barrier devices and their manufacture

#88
20170137168
2017-05-18

METAL COVER FOR A CONTAINER BODY

#89
20170113259
2017-04-27

Method of manufacturing pure niobium plate end-group components for superconducting high frequency accelerator cavity

#90
20170080475
2017-03-23

Manufacturing method and manufacturing device of sheared components

#91
20170077790
2017-03-16

Method for the production of a stack of laminations

#92
20170028892
2017-02-02

Vehicle seat frame including collar member and method of producing the collar member

#93
20160332207
2016-11-17

Die apparatus and method for blanking thin plate

#94
20160297015
2016-10-13

Channel bender

#95
20160271708
2016-09-22

Methods and apparatus for cutting profiles

#96
20160059433
2016-03-03

Apparatus and method for making corner boards for container assemblies

#97
20160030995
2016-02-04

Uncoiling, blanking and forming method

#98
20160018352
2016-01-21

Setting method for conductive object of electrochemical test strip

#99
20150367393
2015-12-24

Shear beveling with serrations

#100
20150362398
2015-12-17

Sheet metal processing machines having a chip suctioning device and methods for detecting a malfunction in the chip suctioning device

#101
20150352624
2015-12-10

Method For Producing A Container Body

#102
20150340545
2015-11-26

Method for manufacturing metallic reflector for LED package

#103
20150325366
2015-11-12

Method of manufacturing laminated iron core

#104
20150311095
2015-10-29

Method for producing resin-encapsulated electronic component, bump-formed plate-like member, resin-encapsulated electronic component, and method for producing bump-formed plate-like member

#105
20150292556
2015-10-15

Bearing shell with alignment projecting feature

#106
20150290824
2015-10-15

Method for machining seal-mounting groove in metal plate

#107
20150266078
2015-09-24

Metal plate stamping method and stamping apparatus

#108
20150260426
2015-09-17

Sealed and/or reinforced flanged ring connector for single- and double-wall HVAC ducting

#109
20150224559
2015-08-13

Stacking apparatus and stack manufacturing system

#110
20150179313
2015-06-25

Ring-shaped or plate-like element and method for producing same

#111
20150176952
2015-06-25

Ring-shaped or plate-like element and method for producing same

#112
20150151347
2015-06-04

Method for producing an assembly unit

#113
20150135795
2015-05-21

Method for manufacturing flat pipe

#114
20150101385
2015-04-16

Tool and method for producing stamped parts

#115
20150097463
2015-04-09

Method for manufacturing stack of laminations

#116
20150075340
2015-03-19

Method of producing iron core

#117
20150000487
2015-01-01

Method of producing iron core and apparatus for producing iron core

#118
20140317908
2014-10-30

METHOD FOR MANUFACTURING LAMINATED IRON CORE AND SHAPE OF SCRAP PRODUCED THEREBY

#119
20140298979
2014-10-09

Method for Producing a Gun Cartridge Casing

#120
20140298878
2014-10-09

METHOD AND SYSTEM FOR METAL DRAWING AND REDRAWING

#121
20140250968
2014-09-11

Processing device and processing method

#122
20140250966
2014-09-11

Ferrous alloy for coining and method for producing the same

#123
20140231003
2014-08-21

Manufacturing method for laminated core and manufacturing apparatus therefor

#124
20130333578
2013-12-19

Assemblies and methods for processing workpieces in ram-driven presses

#125
20130276603
2013-10-24

Punch of punching press, nibbler assembly, and method of forming elongated hole in sheet material

#126
20130247637
2013-09-26

Device for notching and secondary battery manufactured using the same

#127
20130227999
2013-09-05

WORKPIECE PUNCH-MOLDING METHOD AND WORKPIECE PUNCH-MOLDING DEVICE

#128
20130186245
2013-07-25

PUNCHING APPARATUS AND METHOD

#129
20130174626
2013-07-11

Work-punching device, work-punching method, and method for producing element for continuously variable transmission

#130
20130160622
2013-06-27

Laminated body manufacturing method

#131
20120309600
2012-12-06

Tool cartridges for sheet metal processing tools

#132
20120297851
2012-11-29

METHOD AND APPARATUS FOR MANUFACTURING PANELS FOR VEHICLES

#133
20120247300
2012-10-04

Cutting apparatus

#134
20120103155
2012-05-03

METHODS AND APPARATUS FOR CUTTING PROFILES

#135
20120103050
2012-05-03

METHODS AND APPARATUS FOR CUTTING PROFILES

#136
20120067240
2012-03-22

Ring-shaped or plate-like element and method for producing same

#137
20120056503
2012-03-08

Process and mold for producing ferromagnetic cores of electric motors

#138
20120042764
2012-02-23

Punching tools and related machines and methods

#139
20110232076
2011-09-29

Laminated core punching apparatus

#140
20110174125
2011-07-21

METHOD OF SHEARING THIN PLATE

#141
20110024489
2011-02-03

Method for punching before performing rotated lamination

#142
20100236316
2010-09-23

Sheet metal blank having a homogeneous thickness transition

#143
20100154504
2010-06-24

Method for forming a stamped metal part

#144
20090241749
2009-10-01

STAMPING MACHINE

#145
20090178269
2009-07-16

Method of producing iron core and apparatus for producing iron core

#146
20090151417
2009-06-18

Apparatus for machining variable trim line of panel

#147
20090101249
2009-04-23

Method of making a hardened sheet metal part

#148
20090040002
2009-02-12

Iron Core, Mold and Method of Forming and Laminating the Same

#149
20080307628
2008-12-18

Method and tool for manufacturing of build up products

#150
20080269031
2008-10-30

Tool assembly for a ram driven press responsive to the stroke of the ram driven press

#151
20080196471
2008-08-21

Method and device for cutting high-tensile sheet metal, and press

#152
20080110308
2008-05-15

PUNCH WORKING APPARATUS AND METHOD

#153
20070193329
2007-08-23

Method of producing iron core and apparatus for producing iron core

#154
20070028586
2007-02-08

Automatic clasp for wristwatch strap

#155
20060277961
2006-12-14

Shearing method for thin plate

#156
20060053858
2006-03-16

Method of processing metal parts by blanking

#157
20050109178
2005-05-26

Method of producing iron core and apparatus for producing iron core

#158
16534628
2020-09-22

Notcher

#159
14447572
2014-12-02

Apparatus to produce self-piercing and clinch nut and method for producing self-piercing and clinch nut