Nippon Shokubai Co., Ltd.

Other

Sumitomo Chemical Company, Limited

Nidek Co., Ltd.

Sadao Miki

Yoshinobu Asako

Kozo Tajiri

Seiichi Teshima

Masayoshi Konishi

Takeo Ito

Kazuo Sakai

Tsutomu Sunada

Yoshihiro Nakahata

Zenichi Yoshida

Masaki Kuwahara

Yoshihiro Nidek Co Ltd Head Office Nakahata

Tsutomu Nidek Co Ltd Head Office Sunada

A colorant for ocular lenses represented by the formula (I) defined herein or a colorant for ocular lenses represented by the formula (II) defined herein.

Colorant for ocular lenses and material for colored ocular lenses using the colorant

Phosphor layers are formed on the inner surface of a face plate. An electron source device that emits electrons to excite the phosphor layers is provided on the inner surface of a base plate. The electron source device comprises an alumina substrate that has a number of small through holes. Electron-emitting material is buried in the through holes. A reference electrode is formed on the lower surface of the alumina substrate and contacts the electron-emitting material. A gate electrode is formed on the upper surface of the substrate and insulated from the electron-emitting material. The gate electrode is configured to concentrate an electron field of the electron-emitting material by virtue of an voltage applied between the reference electrode and the gate electrode, thereby to cause the electron-emitting material to emit electrons toward the phosphor layers.

Electron source device, method of manufacturing the same, and flat display apparatus comprising an electron source device

Method for production of halogen-containing aromatic compound

This invention relates to a method for the production of an aromatic compound (II) having a (CH,),CX,Br group (wherein X represents a fluorine or chlorine atom and the X's may be same or different, and n is an integer in the range of 0 to 4) by the reaction of photo-bromination of an aromatic compound (I) having a (CH,),CX,H group (wherein X and n are as defined above) with a brominating agent, wherein the photo-bromination reaction is carried out while removing hydrogen bromide generated in the reaction system and/or in an atmosphere of a low oxygen content, and a halogen-containing naphthalene compound represented by the following formula (1):

The present invention relates to a catalyst for the isomerization reaction from quadricyclanes to norbornadienes in a conversion system from light energy to heat energy which comprises cyclopropenylidene palladium complex represented by the formula, ##STR1## wherein R represents hydrogen atom, a lower alkyl or cyano group and X represents a halogen atom, and further relates to a fixed catalyst for the isomerization reaction from quadricyclanes to norbornadienes in a conversion system from light energy to heat energy which is obtained by adsorption-fixing a porphyrin Co(II) complex represented by the formula, ##STR2## wherein R.sub.2 represents a lower alkyl group and R.sub.3 represents a hydroxycarbonyl lower alkyl group, to a modified inorganic carrier in which a polyamine sulfone comprising a recurring unit represented by the formula, ##STR3## wherein R.sub.1 represents a lower alkyl group and X represents a halogen atom, has been adsorbed on a solid inorganic carrier.

Catalyst for the isomerization reaction of quadricyclanes to

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Kyoto, Japan

Sadao Miki