Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Tomokazu Umezawa"'
Autor:
Tomokazu Umezawa1 tomokazu-umezawa@kg7.so-net.ne.jp, Shuzo Fujimura1 fujimura.s.aa@m.titech.ac.jp
Publikováno v:
Proceedings of ISPIM Conferences. 2015, p1-14. 14p.
Autor:
Junya Sato, Masayuki Sanbayashi, Tomokazu Umezawa, Isao Takimoto, Katsuo Takahashi, Ichiro Kijihana, Kenzo Kudo
Publikováno v:
Iryo Yakugaku (Japanese Journal of Pharmaceutical Health Care and Sciences). 37:585-589
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a61b0d829f9e90d88e00d93dadcc9ff
https://doi.org/10.5649/jjphcs.37.585
https://doi.org/10.5649/jjphcs.37.585
Autor:
Michihiro Shibata, Hisashi Mikoshiba, Tomokazu Umezawa, Hiroshi Kubo, Masuji Motoki, Hirokazu Hashimoto
Publikováno v:
Japanese Journal of Applied Physics. 45:1442-1446
The feasibility of high-speed recording on oxonol dye double-layer recordable digital versatile discs (DVD+R DL and DVD-R DL) produced using the inverted stack method was investigated. Jitter of less than 9% was achieved at 2.4–16× recording speed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4107721f4b8fd3b3fa60cd66e33d1acd
https://doi.org/10.1143/jjap.45.1442
https://doi.org/10.1143/jjap.45.1442
Publikováno v:
Japanese Journal of Applied Physics. 42:1618-1622
In the next-generation optical disk using blue laser diodes, the track pitch will be reduced to 0.3 µm, that is about half of the track pitch of digital versatile disks. To realize such high-density optical disks, it is important to develop a high-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23a11b90fb1cfb7f1acfcf6df59e322d
https://doi.org/10.1143/jjap.42.1618
https://doi.org/10.1143/jjap.42.1618
Publikováno v:
Japanese Journal of Applied Physics. 41:7380-7385
The possibility of realizing grooves with the track pitch of 0.3 µm land/groove or less by using UV laser mastering with a multilayer coating (MLC) method was investigated. By using the MLC method, the profile and the wall roughness of grooves were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81e4cc29da4f528a3cfc08660a8abd8e
https://doi.org/10.1143/jjap.41.7380
https://doi.org/10.1143/jjap.41.7380
Publikováno v:
Japanese Journal of Applied Physics. 41:1709-1713
For the next-generation optical disk system using blue laser diodes, a capacity of more than 20 GB with a compact disk size is required. To realize such high-density optical disk systems, it is very important to develop a high-density mastering techn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05ad001437fb4ef32d758b10a2711fb0
https://doi.org/10.1143/jjap.41.1709
https://doi.org/10.1143/jjap.41.1709
Publikováno v:
Journal of Magnetism and Magnetic Materials. 152:243-252
CoPtM (M = Re, Ru) ternary alloy films have been investigated as new magneto-optical materials for blue laser recording. The CoPtRe and CoPtRu alloy films were prepared by sputtering without a heating process, and exhibited good perpendicular magneti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a931f19ba7cde6dad3c2d6dd96c3675
https://doi.org/10.1016/0304-8853(95)00473-4
https://doi.org/10.1016/0304-8853(95)00473-4
Topographical evaluation of optical disks with polycarbonate substrates in the manufacturing process
Publikováno v:
Applied optics. 38(35)
An optical contour mapping with a laser-interference method was carried out to evaluate the topographical deformation of optical memory disks. The dynamics of the deformation in a manufacturing process was studied. Reflective films and a protective r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c17da3f8769c2e6e8c9c63e655f6a842
https://pubmed.ncbi.nlm.nih.gov/18324277
https://pubmed.ncbi.nlm.nih.gov/18324277
Autor:
Makio Kato, Masanori Oyama, Kazutoshi Ohashi, Yoshiko H. Ohashi, Mitsuru Fukuchi, Tomokazu Umezawa
Publikováno v:
Journal of the Physical Society of Japan. 59:4362-4365
Thermal diffusivities of sputtered SiC thin films were measured by using ac-calorimetric method. X-ray diffractions showed that the as-sputtered samples were in amorphous state and the thermal diffusivity of the SiC thin film was 0.40 cm 2 /s. After
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0db2f06b787f988b3889d23a71cda1df
https://doi.org/10.1143/jpsj.59.4362
https://doi.org/10.1143/jpsj.59.4362
Autor:
Masuji Motoki, Michihiro Shibata, Hiroshi Kubo, Hirokazu Hashimoto, Tomokazu Umezawa, Hisashi Mikoshiba
Publikováno v:
International Symposium on Optical Memory and Optical Data Storage.
The feasibility of high-speed recording on oxonol dye double-layer DVD+R discs produced using the inverted stack method is investigated. L0 jitter of 7.6% and L1 jitter of 7.4% was achieved at 12x recording speed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::504b8a26c41a3576efec79a172692bf2
https://doi.org/10.1364/isom_ods.2005.thd3
https://doi.org/10.1364/isom_ods.2005.thd3