Ricoh Company, Ltd.

Kawori Tanaka

Yoshitaka Hayashi

Noboru Sasa

Toshishige Fujii

Atsuyuki Watada

Hisamitsu Kamezaki

Hirotaka Komoda

Masaomi Sasaki

Kazukiyo Nagai

Shinichi Kawamura

Nozomu Tamoto

Yasuo Suzuki

Hiroyoshi Sekiguchi

Hiroshi Deguchi

Hongguo Li

Noriyuki Iwata

Toshihide Sasaki

Masayuki Fujiwara

Kengo Makita

Hideyuki Yasufuku

The present invention provides a method for forming a pattern, containing: stacking a master having at least a two-dimensional pattern or a three-dimensional pattern formed thereon and a pattern-transferring material containing at least a recording layer which changes a state thereof as light is transmitted thereto; and transmitting light to the recording layer so as to transfer the pattern of the master onto the recording layer.

Pattern and method for forming the same

A write-once-read-many optical recording medium is disclosed that includes a support substrate; a recording layer on the support substrate, the recording layer containing an oxide of one of a metal and a metalloid as a principal component; and a layer adjacent to the recording layer. The recording layer includes a region where a constituent element of the adjacent layer is dispersed. Recording and reproduction are performable with laser light of a blue wavelength region.

Worm optical recording medium

For recording information at high density even at blue-laser wavelengths, a write-once-read-many optical recording medium includes a first inorganic thin film and at least one of a second inorganic thin film and an organic thin film, in which the first inorganic thin film contains at least 'R' and 'O,' wherein &#x201c;R&#x201d; is at least one selected from Y, Bi, In, Mo, V and lanthanum series elements; and &#x201c;O&#x201d; is oxygen atom, and the second inorganic thin film and the organic thin film are capable of suppressing at least one of deformation and breakage of the first inorganic thin film and receiving the change of state of the first inorganic thin film.

Write-once-read-many optical recording media and process for recording and reproducing information on the media

An electrophotographic photoconductor comprising at least an electroconductive support and a photoconductive layer which is formed on said electroconductive support, the outermost layer of the photoconductor contains particles comprising a polyorganosiloxane-containing phase which contains polyorganosiloxane and an organic polymer-containing phase which contains organic polymer without silicon and has a polyorganosiloxane content which is less than the polyorganosiloxane-containing phase, each phase being exposed at the top surface of the photoconductor.

Electrophotographic photoconductor, and process cartridge and electrophotographic apparatus using the same

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Kanagawa, Japan

Kawori Tanaka