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Dive into the research topics where Hideaki Ema is active.

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Featured researches published by Hideaki Ema.


Applied Optics | 1988

Point source diffraction and its use in an encoder

Jun Akedo; Haruhiko Machida; Hiroshi Kobayashi; Yoshikatsu Shirai; Hideaki Ema

Diffraction from a point light source (a laser diode) was studied. The diffraction images were found to be magnified without using a lens and to move corresponding to the displacement of the slit aperture. A digital encoder using this diffraction is proposed to obtain very high resolution without a lens.


Archive | 1991

Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium

Shoji Maruyama; Hiroshi Goto; Eiichi Kawamura; Masaru Shimada; Keishi Kubo; Kyoji Tsutsui; Hideaki Ema; Takehito Yamaguchi; Hiroki Kuboyama; Ichiro Sawamura; Keishi Taniguchi


Archive | 1987

Method of measuring the amount of movement of an object having uniformly periodic structure

Hiroshi Kobayashi; Haruhiko Machida; Hideaki Ema; Jun Akedo


Archive | 1991

REVERSIBLE THERMAL COLOR FORMING COMPOSITION, RECORDING MEDIUM USING SAME, RECORDING METHOD AND APPARATUS

Hideaki Ema; Hiroshi Goto; Eiichi Kawamura; Takashi Kubo; Hironori Kuboyama; Katsuji Maruyama; Ichiro Sawamura; Masaru Shimada; Keiji Taniguchi; Kyoji Tsutsui; Takehito Yamaguchi; 勝次 丸山; 敬 久保; 浩紀 久保山; 岳人 山口; 勝 島田; 栄一 川村; 寛 後藤; 英昭 江間; 一郎 澤村; 恭治 筒井; 圭司 谷口


Archive | 1995

Transparent thermal recording medium

Hiroshi Goto; Hideaki Ema; Kiyoshi Sakai


Archive | 1987

Method of manufacturing masked semiconductor laser

Hiroshi Kobayashi; Haruhiko Machida; Hideaki Ema; Jun Akedo; Makoto Harigaya; Yasushi Ide


Archive | 1993

Method of reversible recording

Kyoji Tsutsui; Takehito Yamaguchi; Hideaki Ema; Masaru Shimada; Hiroshi Goto; Ichiro Sawamura; Eiichi Kawamura; Keishi Kubo; Shoji Maruyama; Hiroki Kuboyama


Archive | 1981

Electrophotographic photoconductor of halogen-doped Se-Te alloy layers

Hitoshi Nakamura; Hideyo Nishizima; Hideaki Ema; Makoto Harigaya; Satoshi Otomura


Archive | 1981

Halogen doped selenium-tellurium alloy electrophotographic photoconductor

Hideyo Nishizima; Hideaki Ema; Hiroshi Tamura; Hideki Akiyoshi


Archive | 1982

Electrophotographic light-sensitive member with thin overlayer

Haruo Hasegawa; Kenji Seki; Hideaki Ema; Masahide Harada; Shiro Yamane

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