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Kazuhiro Umeki

Ricoh

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Publication

Featured researches published by Kazuhiro Umeki.

Archive | 2004

Polarization optical device and manufacturing method therefor

Kazuhiro Umeki

Archive | 2005

Optical device, method of producing the same, optical pickup, and optical information processing device

Hideaki Hirai; Kazuhiro Umeki

Archive | 1996

GRADATION MASK AND ITS PRODUCTION AND METHOD FOR GENERATING SPECIAL SURFACE SHAPE BY USING GRADATION MASK

Masaaki Sato; Masanori Satou; Kazuhiro Umeki; 昌仙 佐藤; 正明 佐藤; 和博 梅木

Archive | 1996

Gradation mask method of producing the same and method of forming special surface profile on material using gradation mask

Kazuhiro Umeki; Shosen Sato; Masaaki Sato

Archive | 2007

Optical element and optical device

Hideaki Hirai; Yoshiyuki Kiyosawa; Kazuhiro Umeki; Yasuhiro Fujimura

Archive | 2003

Method and mold for fabricating article having fine surface structure

Kazuhiro Umeki

Archive | 2004

Optical pickup and optical data processing apparatus

Hideaki Hirai; Toshimichi Nasukawa; Kazuhiro Umeki

Archive | 2008

Optical pickup and optical information processing device

Yukiko Hamano; Hideaki Hirai; Toshimichi Nasukawa; Kazuhiro Umeki

Archive | 2000

GENERATION METHOD FOR SPECIAL, SURFACE SHAPE AND OPTICAL ELEMENT

Kazuhiro Umeki; 和博 梅木

Archive | 1999

Formation of array pattern with fine recesses and planar lens array, liquid crystal display device and planar oil trap produced by the forming method

Kazuhiro Umeki; 和博 梅木

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Collaboration

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Toshimichi Nasukawa

Ricoh

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Hideaki Hirai

Ricoh

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Masaaki Sato

Kobe University

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Shosen Sato

Ricoh

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Yasuhiro Fujimura

Ricoh

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Masaaki Sato

Kobe University

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Takahiro Sato

Hitachi

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Yoshiyuki Kiyosawa

Ricoh

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Yukiko Hamano

Ricoh

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