Mitsui Toatsu Chemicals, Incorporated

Mitsui Chemicals, Inc.

Yamamoto Chemicals, Inc.

Keiji Ueno

Tadashi Koike

Sumio Hirose

Shin Aihara

Shigeru Takahara

Tsutami Misawa

Akira Ogiso

Tsutomu Ishida

Hisashi Tsukahara

Hiroko Wachi

Koji Inoue

Yuji Inatomi

Hiroshi Maekawa

Mitsuru Sadamoto

Shinichi Murakami

Ryousuke Nara

Hiroyoshi Shiozaki

A gas generating device for generating an oxygen gas and/or a hydrogen gas from an electrolytic solution containing water, including an anode electrode, a cathode electrode, a plurality of through holes and a gas containing unit. The anode electrode (photocatalyst supporting electrode) has a photocatalyst-containing layer containing a photocatalyst producing an oxygen gas from the electrolytic solution by a photocatalytic reaction. The cathode electrode produces a hydrogen gas from electrons and hydrogen ions that are generated in the electrolytic solution by the photocatalytic reaction at the photocatalyst-containing layer. The through holes are formed on at least one of the anode electrode and the cathode electrode, and the through holes allow the produced oxygen gas or hydrogen gas to pass therethrough, but do not allow the electrolytic solution to pass therethrough. The gas containing unit holds the oxygen gas or hydrogen gas that has passed through the through holes.

Gas generating device and method for generating gas

An optical recording medium containing one or more compounds selected from imide compounds having a metallocene residue in a recording layer and an imide compound represented by a general formula (1): wherein a ring AR represents a substituted or unsubstituted aromatic ring residue or a residue formed by combining two or more aromatic ring residues via one or more linking groups; n represents the number of imide groups bonded to the ring AR; Arepresents any one of substituents Ato Abonded to a nitrogen atom of each imide group; and m represents an integer of from 1 to n, with the proviso that at least one substituent selected from the group consisting of Ato Ais one having at least one substituted or unsubstituted metallocene residue.

Imide compound and optical recording media made by using the same

An optical recording medium for pit length recording with excellent error rate and jitter value which has a transparent injection molded resin substrate, a recording layer containing a phthalocyanine dye of formula (1) overlying the substrate and a covering layer overlying the recording layer. Also, a method of optical recording by pit length recording with a focused laser beam using an optical recording medium as described above.

Optical recording medium and recording method

Disclosed are optical recording media, each of which is composed of a substrate and a recording layer formed on the substrate. The recording layer includes an organic-dye-containing layer and an organopolysiloxane resin layer formed by the condensation of a trifunctional silane represented by R.sup.1 Si(OR.sup.2).sub.3-n (X).sub.n and a tetrafunctional silane represented by Si(OR.sup.3).sub.4-m (X).sub.m, wherein R.sup.1, R.sup.2 and R.sup.3 individually represent an alkyl or aryl group, X a hydroxyl group or a halogen atom, and n and m 0, 1, 2 or 3 and 0, 1, 2, 3 or 4, respectively.

Optical recording media

Disclosed are optical recording media, each of which is composed of a substrate and a recording layer formed on the substrate. The recording layer includes an organic-dye-containing layer and an organopolysiloxane resin layer formed by the condensation of a trifunctional silane represented by R.sup.1 Si(Or.sup.2).sub.3-n (X).sub.n and a tetrafunctional silane represented by Si(OR.sup.3).sub.4-m (X).sub.m, wherein R.sup.1, R.sup.2 and R.sup.3 individually represent an alkyl or aryl group, X a hydroxyl group or a halogen atom, and n and m 0, 1, 2 or 3 and 0, 1, 2, 3 or 4, respectively.

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Kanagawa, Japan

Keiji Ueno