ClassID:

197733

G11B5/1875 - CPC Classification

Classification description:

Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Structure or manufacture of heads, e.g. inductive; Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features "Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers

Sub-classes:
Recent Application in this class:
#1
20250329344
2025-10-23

WRITER HAVING LATERALLY DECOUPLED POLE SECTIONS

#2
20240296861
2024-09-05

Magnetic head with multilayer configuration between magnetic poles and magnetic recording device

#3
20240233756
2024-07-11

A MAGNETIC RECORDING SYSTEM FOR RECORDING DATA ON A MAGNETIC MEDIA

#4
20240135963
2024-04-25

Magnetic write transducer with variable write gap length

#5
20230245681
2023-08-03

Heat-assisted magnetic recording (HAMR) head with main pole having recess for plasmonic material

#6
20210233565
2021-07-29

Magnetic recording medium, magnetic recording and reproducing apparatus, magnetic tape cartridge, and magnetic tape cartridge group

#7
20200381012
2020-12-03

Magnetic head with assisted magnetic recording and method of making thereof

#8
20180261245
2018-09-13

Assisted magnetic recording medium including a pinning layer and magnetic storage device

#9
20170365279
2017-12-21

Magnetic recording medium and magnetic memory device including magnetic layers having granular structure of magnetic grains and grain boundary portion

#10
20170236536
2017-08-17

Fabrication of a tape head with a monobloc closure

#11
20050105214
2005-05-19

Magnetic recording head having a plurality of shield layers

#12
17588473
2022-12-20

Heat-assisted magnetic recording (HAMR) head with main pole having recess for plasmonic material

#13
17469571
2022-06-28

Write transducer with recessed portion to improve track shingling performance

#14
17169995
2021-12-28

Magnetic head including spin torque oscillator

#15
16926429
2020-10-06

Perpendicular magnetic recording write head with heater and heat sink for providing temperature gradient across the main pole

#16
16206079
2020-09-29

Perpendicular magnetic recording write head with heater and heat sink for providing temperature gradient across the main pole