Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Noritake Ohmachi"'
Autor:
Naomasa Nakamura, Tsukasa Nakai, Naoki Morishita, Sumio Ashida, Noritake Ohmachi, Keiichiro Yusu
Publikováno v:
Japanese Journal of Applied Physics. 45:1210-1212
We have developed optical recording media for high-speed operation on the HD DVD rewritable (HD DVD-R) format, which uses a laser wavelength of 405 nm, a numerical aperture of the objective lens of 0.65 and a cover layer thickness of 0.6 mm. In this
Autor:
Naomasa Nakamura, Tsukasa Nakai, Keiichiro Yusu, Noritake Ohmachi, Sumio Ashida, Naoki Morishita
Publikováno v:
International Symposium on Optical Memory and Optical Data Storage.
We have developed high speed recording rewritable media having the user data capacity of 20 GB for HD DVD system. The technologies and the characteristics of the rewritable media for 1X - 2.4X are described.
Autor:
Naomasa Nakamura, Akihito Ogawa, Sumio Ashida, Takayuki Tsukamoto, Naoki Morishita, Katsutaro Ichihara, Keiichiro Yusu, Noritake Ohmachi
Publikováno v:
SPIE Proceedings.
We have developed phase change media of 20GB capacity for the system with the numerical aperture of 0.65 and light incidence on 0.6 mm-thick substrate.
Autor:
Noritake Ohmachi, Takayuki Tsukamoto, Naomasa Nakamura, Katsutaro Ichihara, Tsukasa Nakai, Nobuhisa Yoshida, Keiichiro Yusu, Sumio Ashida, Naoki Morishita
Publikováno v:
SPIE Proceedings.
The dual-layer phase change recording media of 36GB user data capacity has been demonstrated for system with NA of 0.65 and light incidence on 0.6-mm-thick substrate
Autor:
Noritake Ohmachi, Keiichiro Yusu, Sumio Ashida, Akihito Ogawa, Naomasa Nakamura, Takayuki Tsukamoto, Katsutaro Ichihara, Tsukasa Nakai, Naoki Morishita
Publikováno v:
MRS Proceedings. 803
In an effort to achieve as high a storage capacity as possible on a disc format that is similar to conventional DVD using blue-violet laser, a number of new technologies have been implemented for the phase change rewritable media. The technologies in
Autor:
Noritake Ohmachi, Akihito Ogawa, Naoki Morishita, Naomasa Nakamura, Keiichiro Yusu, Sumio Ashida, Takayuki Tsukamoto, Katsutaro Ichihara
Publikováno v:
Optical Data Storage.
Autor:
Sumio Ashida, Keiichiro Yusu, Naomasa Nakamura, Katsutaro Ichihara, Tsukasa Nakai, Noritake Ohmachi
Publikováno v:
Japanese Journal of Applied Physics. 43:4978
Sufficient signal amplitude, erase ratio and low amount of cross-erase must be attained to achieve higher recording capacity of rewritable phase-change media. We have developed new media technologies, such as the GeTe-rich GeTe-Sb2Te3 pseudobinary al
Autor:
Naoki Morishita, Takayuki Tsukamoto, Nobuhisa Yoshida, Sumio Ashida, Keiichiro Yusu, Kazuyo Umezawa, Naomasa Nakamura, Katsutaro Ichihara, Tsukasa Nakai, Noritake Ohmachi
Publikováno v:
Japanese Journal of Applied Physics. 43:4987
We have investigated the recording characteristics of the dual-layer phase-change recording media for a system that uses the blue-violet laser (wavelength of 405 nm), with the numerical aperture of 0.65 and light incidence on 0.6-mm-thick substrate h