Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
MRIS, ITE-MMS |
2023-12-07 13:30 |
Ehime |
Ehime Univ. (CITE) (Primary: On-site, Secondary: Online) |
A Study on Estimating Bit Shape Using Medium Coercive and Effective Magnetic Write Field Kazuki Nakashima (Ehime Univ), Yasuaki Nakamura, Madoka nishikawa (Ehime Univ.), Yasushi Kanai (Niigata Inst. Tech.), Yoshihiro Okamoto (Ehime Univ.) MRIS2023-22 |
In the microwave-assisted magnetic recording (MAMR) system, we proposed and evaluated methods to estimate the shape and ... [more] |
MRIS2023-22 pp.1-6 |
MRIS, ITE-MMS |
2023-12-07 13:55 |
Ehime |
Ehime Univ. (CITE) (Primary: On-site, Secondary: Online) |
Effect of Curie temperature distributions in heat-assisted magnetic recording Simon Greaves (Tohoku Univ.), Yasushi Kanai (Niigata Inst. Technology) MRIS2023-23 |
The results of simulations of the effect of Curie temperature distributions among recording medium grains are presented.... [more] |
MRIS2023-23 pp.7-11 |
MRIS, ITE-MMS |
2023-12-08 09:30 |
Ehime |
Ehime Univ. (CITE) (Primary: On-site, Secondary: Online) |
Performance evaluation of SP decoding considering the influence of recording pattern using neural network Madoka Nishikawa, Yasuaki Nakamura (Ehime Univ.), Yasushi Kanai (Niigata Ins. of Tec.), Yoshihiro Okamoto (Ehime Univ.) MRIS2023-27 |
We study an LDPC (low-density parity-check) encoding and iterative decoding method which combines LDPC codes and SP (sum... [more] |
MRIS2023-27 pp.30-35 |
MRIS, ITE-MMS |
2022-12-09 09:30 |
Ehime |
Ehime Univ. + Online (Primary: On-site, Secondary: Online) |
A study on read/write channel model of multiple layer magnetic recording Yasuaki Nakamura, Madoka Nishikawa (Ehime Univ.), Yasushi Kanai (Niigata Institute of Tech.), Yoshihiro Okamoto (Ehime Univ.) MRIS2022-24 |
[more] |
MRIS2022-24 pp.32-37 |
MRIS, ITE-MMS |
2022-06-09 14:20 |
Miyagi |
RIEC, Tohoku Univ. (Primary: On-site, Secondary: Online) |
A study of read/write channel using double layered granular medium model Kazuki Nakashima, Yasuaki Nakamura, Madoka Nishikawa (Ehime Univ.), Yasushi Kanai (Niigata Inst.), Yoshihiro Okamoto (Ehime Univ.) MRIS2022-3 |
[more] |
MRIS2022-3 pp.13-18 |
MRIS, ITE-MMS |
2021-06-10 14:20 |
Miyagi |
RIEC, Tohoku U. (Primary: On-site, Secondary: Online) |
A study of equalization for reproducing a double-layer magnetic recording medium Yasuaki Nakamura, Takuya Okada, Madoka Nishikawa (Ehime Univ.), Yasushi Kanai (Niigata Insit.), Yoshihiro Okamoto (Ehime Univ.) MRIS2021-3 |
[more] |
MRIS2021-3 pp.12-17 |
MRIS, ITE-MMS |
2020-12-03 16:00 |
Online |
Online |
A study on iterative decoding using neural network in SMR system Madoka Nishikawa, Yasuaki Nakamura (Ehime Univ.), Yasushi Kanai (NIT), Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.) MRIS2020-10 |
We study the low-density parity-check (LDPC) coding and iterative decoding system by signal processing for the shingled ... [more] |
MRIS2020-10 pp.26-31 |
MRIS, ITE-MMS |
2019-12-05 14:00 |
Ehime |
Ehime University |
A study on iterative decoding using information of magnetic transitions in SMR Madoka Nishikawa, Yasuaki Nakamura (Ehime Univ.), Yasushi Kanai (NIIT), Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.) MRIS2019-39 |
In our previous research, we focused on a log-likelihood ratio (LLR) computed as the decoding reliability by a posterior... [more] |
MRIS2019-39 pp.1-6 |
MRIS, ITE-MMS |
2019-12-05 14:25 |
Ehime |
Ehime University |
A study on MAMR R/W channel modeling for signal processing Yuji Yamada, Yasuaki Nakamura, Madoka Nishikawa (Ehime Univ.), Yasushi Kanai (Niigata Institute of Technology), Yoshihiro Okamoto (Ehime Univ.) MRIS2019-40 |
Microwave assisted magnetic recording (MAMR) draws attention as a recording technology to increase the recording densiti... [more] |
MRIS2019-40 pp.7-12 |
MRIS, ITE-MMS |
2019-12-05 14:50 |
Ehime |
Ehime University |
Micromagnetic analysis of MAMR recording head
-- A consideration for stable oscillation of STO at low applied current density -- Ryo Itagaki, Yasushi Kanai (NIIT), Simon Greaves (Tohoku Univ.) MRIS2019-41 |
A micromagnetic model analysis of STOs was carried out to realize stable STO oscillation with small J. Using write heads... [more] |
MRIS2019-41 pp.13-18 |
MRIS, ITE-MMS |
2019-06-13 14:55 |
Miyagi |
Tohoku Univ. |
Micromagnetic analysis of MAMR recording head
-- Oscillation of STO with parallel head gap -- Ryo Itagaki, Yasushi Kanai (NIIT), Simon Greaves (Tohoku Univ.) MRIS2019-4 |
A micromagnetic model analysis was carried out for a spin-torque oscillator (STO) inserted into the write head gap for m... [more] |
MRIS2019-4 pp.15-20 |
MRIS, ITE-MMS |
2019-06-14 11:10 |
Miyagi |
Tohoku Univ. |
A study on neural network LLR modulation in TDMR Madoka Nishikawa, Yasuaki Nakamura (Ehime Univ.), Yasushi Kanai (NIT), Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.) MRIS2019-8 |
In our previous research, we focused on a log-likelihood ratio (LLR) computed as the decoding reliability by a posterior... [more] |
MRIS2019-8 pp.53-58 |
MRIS, ITE-MMS |
2018-12-06 14:00 |
Ehime |
Ehime University |
A study of LLR modulation using neural network decision Madoka Nishikawa, Yasuaki Nakamura (Ehime Univ.), Yasushi Kanai (Niigata Tech.), Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.) MRIS2018-21 |
In our previous research, we focused on a log-likelihood ratio (LLR) computed as the decoding reliability by a posterior... [more] |
MRIS2018-21 pp.7-12 |
MRIS, ITE-MMS |
2018-12-07 10:00 |
Ehime |
Ehime University |
Micromagnetic analysis of MAMR recording head
-- STO with parallel gap write head and the influence of recording layer on STO oscillation -- Ryo Itagaki, Yasushi Kanai (NIIT), Simon Greaves, Hiroaki Muraoka (Tohoku Univ.) MRIS2018-25 |
Micromagnetic model simulations were performed considering a spin-torque oscillator (STO), write head and double-layered... [more] |
MRIS2018-25 pp.41-46 |
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 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 |