Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
MRIS, ITE-MMS |
2018-12-07 11:00 |
Ehime |
Ehime University |
Recording characteristics of microwave-assisted magnetic recording for granular media Terumitsu Tanaka (Kyushu Univ.), Yasushi Kanai (Niigata Ins. Tech.), Kimihide Matsuyama (Kyushu Univ.) MRIS2018-26 |
Magnetization reversal process under the microwave assistance and microwave-assisted signal recording characteristics we... [more] |
MRIS2018-26 pp.47-52 |
MRIS, ITE-MMS |
2018-06-07 14:40 |
Miyagi |
Tohoku Univ. |
Effect of STO angle in microwave assisted magnetic recording Simon Greaves (Tohoku Univ.), Yasushi Kanai (Niigata Inst. Tech.) MRIS2018-4 |
Microwave assisted magnetic recording (MAMR) has the potential to increase the density of data stored on magnetic disks.... [more] |
MRIS2018-4 pp.19-24 |
MRIS, ITE-MMS |
2018-06-07 15:20 |
Miyagi |
Tohoku Univ. |
Micromagnetic analysis of MAMR recording head
-- Tilted STO with narrow gap write head -- Ryo Itagaki, Yasushi Kanai (Niigata Inst. of Tech.), Simon Greaves, Hiroaki Muraoka (Tohoku Univ.) MRIS2018-5 |
A micromagnetic model analysis of a spin-torque oscillator (STO) and write head for microwave-assisted magnetic recordin... [more] |
MRIS2018-5 pp.25-30 |
MRIS, ITE-MMS |
2018-06-08 09:40 |
Miyagi |
Tohoku Univ. |
A study on iterative decoding with neural network LLR modulator in SMR system Madoka Nishikawa, Yasuaki Nakamura, Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.), Yasushi Kanai (Niigata Ins. of Tec.), Hiroaki Muraoka (Tohoku Univ.) MRIS2018-10 |
In our previous research, we showed that the iterative decoding with a log-likelihood ratio (LLR) modulator using parity... [more] |
MRIS2018-10 pp.55-60 |
MRIS, ITE-MMS |
2017-12-08 10:30 |
Ehime |
Ehime Univ. |
A study on iterative decoding with LLR modulator by parity check information in SMR-HDD Madoka Nishikawa, Yasuaki Nakamura, Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.), Yasushi Kanai (Niigata Ins. of Tec.), Hiroaki Muraoka (Tohoku Univ.) MR2017-38 |
(To be available after the conference date) [more] |
MR2017-38 pp.75-80 |
MRIS, ITE-MMS |
2017-12-08 10:50 |
Ehime |
Ehime Univ. |
Micromagnetic model analysis of MAMR recording head (2)
-- Oscillation of STO vs. rise time of external field -- Ryo Itagaki, Yasushi Kanai (Niigata Inst. Tech.), Simon Greaves, Hiroaki Muraoka (Tohoku Univ.) MR2017-39 |
A micromagnetic model analysis of spin-torque oscillators (STOs) was carried out. First, the conditions for stable oscil... [more] |
MR2017-39 pp.81-86 |
MRIS, ITE-MMS |
2017-12-08 11:20 |
Ehime |
Ehime Univ. |
High data rate write head for perpendicular magnetic recording using main-pole tip exited method Yoshihisa Nakamura (Tohoku Univ.), Ryo Itagaki, Yasushi Kanai (NIIT) MR2017-40 |
PMR write heads in which a main-pole tip are directly exited by thin film coils have superior performance compared with ... [more] |
MR2017-40 pp.87-92 |
MRIS, ITE-MMS |
2017-10-19 15:10 |
Niigata |
Kashiwazaki energy hall, Niigata |
Micromagnetic analysis of MAMR recording head
-- Oscillation of small-sized STO with small external field -- Ryo Itagaki, Yasushi Kanai (Niigata Inst. of Tech.), Simon Greaves, Hiroaki Muraoka (Tohoku Univ.) MR2017-20 |
A micromagnetic model analysis of a spin-torque oscillator and write head for microwave-assisted magnetic recording was ... [more] |
MR2017-20 pp.17-22 |
MRIS, ITE-MMS |
2017-10-19 15:35 |
Niigata |
Kashiwazaki energy hall, Niigata |
CAE analysis of magnetic interaction between STO and head/media in MAMR Ikuya Tagawa (Tohtech), Ryo Itagaki, Yasushi Kanai (NIIT) MR2017-21 |
[more] |
MR2017-21 pp.23-28 |
MRIS, ITE-MMS |
2017-10-19 16:15 |
Niigata |
Kashiwazaki energy hall, Niigata |
A comparison of single phase and antiferromagnetically coupled media for microwave assisted magnetic recording Simon Greaves (Tohoku Univ.), Yasushi Kanai (Niigata Inst. Tech.), Hiroaki Muraoka (Tohoku Univ.) MR2017-22 |
In microwave-assisted magnetic recording magnetostatic interactions between grains can cause the resonance frequency to ... [more] |
MR2017-22 pp.29-34 |
MRIS, ITE-MMS |
2017-10-19 16:40 |
Niigata |
Kashiwazaki energy hall, Niigata |
Performance improvement of iterative decoding by LLR modification using parity check information in SMR system Madoka Nishikawa, Yasuaki Nakamura, Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.), Yasushi Kanai (Niigata Ins. of Tec.), Hiroaki Muraoka (Tohoku Univ.) MR2017-23 |
In recent years, an iterative decoding system using LDPC (low density parity-check) code as a powerful error correction ... [more] |
MR2017-23 pp.35-40 |
MRIS, ITE-MMS |
2017-10-19 17:05 |
Niigata |
Kashiwazaki energy hall, Niigata |
A study on BAR for areal density and reader size in SMR system Yasuaki Nakamura, Madoka Nishikawa, Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.), Yasushi Kanai (Niigata Ins. Tec.), Hiroaki Muraoka (Tohoku Univ.) MR2017-24 |
[more] |
MR2017-24 pp.41-45 |
MRIS, ITE-MMS |
2017-06-08 16:25 |
Miyagi |
Tohoku Univ. |
A study of two-track lump reading scheme on bit patterned medium Yasuaki Nakamura, Hiroki Ueno, Madoka Nishikawa, Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.), Yasushi Kanai (Niigata Institute of Technology), Hiroaki Muraoka (Tohoku Univ.) MR2017-5 |
[more] |
MR2017-5 pp.29-33 |
MRIS, ITE-MMS |
2017-06-09 09:15 |
Miyagi |
Tohoku Univ. |
FEM analysis of PMR write head for high data rate Yoshihisa Nakamura (Tohoku Univ.), Ryo Itagaki, Yasushi Kanai (Niigata Inst. Tech.) MR2017-6 |
A write head with a fast response and high efficiency is necessary to realize higher data rates and larger storage capac... [more] |
MR2017-6 pp.41-46 |
MRIS, ITE-MMS |
2017-06-09 10:45 |
Miyagi |
Tohoku Univ. |
Micromagnetic model analysis of STO and recording head for microwave-assisted magnetic recording
-- various types of STO and write head -- Yasushi Kanai, Ryo Itagaki (Niigata Inst. Tech.), Simon Greaves, Hiroaki Muraoka (Tohoku Univ.) MR2017-9 |
A micromagnetic model analysis was carried out considering two types of write head and three types of spin-torque oscill... [more] |
MR2017-9 pp.59-64 |
MRIS, ITE-MMS |
2017-06-09 11:10 |
Miyagi |
Tohoku Univ. |
Magnetisation switching of ECC grains in microwave-assisted magnetic recording Simon Greaves (Tohoku Univ.), Yasushi Kanai (Niigata Inst. Tech.), Hiroaki Muraoka (Tohoku Univ.) MR2017-10 |
Microwave-assisted magnetic recording (MAMR) was investigated using a planar write head and exchange-coupled composite (... [more] |
MR2017-10 pp.65-70 |
MRIS, ITE-MMS |
2016-12-08 13:25 |
Ehime |
Ehime Univ. |
A study on dependence of decoding reliability on recording condition in SMR Ryota Suzuto, Yasuaki Nakamura, Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.), Yasushi Kanai (Niigata Inst. Tech.), Hiroaki Muraoka (Tohoku Univ.) MR2016-31 |
Shingled magnetic recording (SMR) is employed to realize higher recording densities in hard disk drive (HDD). In this re... [more] |
MR2016-31 pp.5-9 |
MRIS, ITE-MMS |
2016-12-09 09:50 |
Ehime |
Ehime Univ. |
Discussion on write head performance for perpendicular magnetic recording based on FEM analysis Yoshihisa Nakamura (Tohoku Univ.), Yasushi Kanai, Ryo Itagaki (Niigata Inst. Tech.) MR2016-37 |
In order to extend the areal density in magnetic recording the most challenging obstacle is believed to be the writabili... [more] |
MR2016-37 pp.45-50 |
MRIS, ITE-MMS |
2016-10-20 13:00 |
Fukuoka |
Nishijin Plaza |
Damping constant dependence of microwave assisted magnetization reversal and signal recording characteristics Terumitsu Tanaka, Daisuke Sakamoto (Kyushu Univ.), Yasushi Kanai (Niigata Ins. Tech.), Kimihide Matsuyama (Kyushu Univ.) MR2016-20 |
[more] |
MR2016-20 pp.1-5 |
MRIS, ITE-MMS |
2016-06-10 09:50 |
Miyagi |
Tohoku Univ. |
Effect of two-dimensional FIR filter for TDMR Ryota Suzuto, Yasuaki Nakamura, Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.), Yasushi Kanai (Niigata Inst. Tech.), Hiroaki Muraoka (Tohoku Univ.) MR2016-9 |
A two-dimensional magnetic recording (TDMR) which combines the shingled magnetic recording (SMR) and two-dimensional sig... [more] |
MR2016-9 pp.59-64 |