E
Eiichi Seya
Researcher at Hitachi
Publications - 16
Citations - 259
Eiichi Seya is an academic researcher from Hitachi. The author has contributed to research in topics: Optical disc & Interferometry. The author has an hindex of 8, co-authored 16 publications receiving 249 citations.
Papers
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Patent
Wafer transport method
Yoshio Kawamura,Yoshifumi Kawamoto,Fumihiko Uchida,Kenichi Mizuishi,Natsuki Yokoyama,Eiichi Murakami,Yoshinori Nakayama,Eiichi Seya +7 more
TL;DR: In this article, the authors propose a wafer transport method that includes the steps of preparing a semiconductor process equipment having a transport chamber and a process chamber, where an interface means connects the transport chamber to the process chamber by way of the interface means.
Journal ArticleDOI
Operation of a separated-type x-ray interferometer for phase-contrast x-ray imaging
TL;DR: In this article, a skew-symmetric optical interferometer was used to produce a 25×20mm interference pattern with 0.07 nm synchrotron x-rays.
Proceedings ArticleDOI
Development Of A Precision Diamond Cutting Machine For Fabrication Of Asymmetrical Aspheric Mirrors
TL;DR: In this paper, a diamond cutting machine for fabrication of asymmetric aspheric mirrors is presented, where a tool spindle is laid on an X-Y slide, and its position is numerically controlled by using a laser interferometer.
Patent
Methods for measuring optical system, and method and apparatus for exposure using said measuring method
Eiichi Seya,Massaaki Ito,Soichi Katagiri,Tsuneo Terasawa,Minoru Hidaka,Eiji Takeda,Norio Saitou +6 more
TL;DR: In this article, the authors measured the distribution of wavefront distortions in the optics while changing the positions of a light source and an image point inside an exposure field of the optics being observed.
Journal ArticleDOI
Large-area phase-contrast X-ray imaging using a two-crystal X-ray interferometer
Akio Yoneyama,Atsushi Momose,Ichiro Koyama,Eiichi Seya,Tohoru Takeda,Yuji Itai,Keiichi Hirano,Kazuyuki Hyodo +7 more
TL;DR: Measurements of a phase map of a rat's liver and a phase-contrast tomographic three-dimensional image of a piece of a rabbit's liver were performed at the Photon Factory using 0.07 nm synchrotron radiation X-rays.