Takasago International Corporation

Semiconductor Energy Laboratory Co., Ltd.

Takasago Koryo Kogyo Kabushiki Kaisha (takasago International

Shindengen Electric Manufacturing Company Limited

Yamanashi Electronics Co., Ltd.

Toshimitsu Hagiwara

Hiroshi Sugiyama

Yoshimasa Matsushima

Yoji Hori

Tohru Kobayashi

Hitoshi Kondo

Mamoru Yamada

Akio Yamaguchi

Yoshiki Okeda

Yukiharu Iwaya

Shinya Watanabe

Shinya Yamada

Misao Yagi

Takeshi Yamamoto

Takashi Miura

Hideo Ujihara

Yoko Takahashi

Toshimitsu Konuma

Takashi Imai

Kenya Ishida

Hiroyuki Matsuda

Tsutomu Hashimoto

Takenobu Nishikawa

Hisao Iwai

Hideyuki Hongo

Hiroko Konuma

Mika Tadokoro

Shunpei Yamazaki

Kenichi Yamamoto

Akira Amano

Ken Suzuki

Shigeru Mitsuhashi

Yoshiharu Gonda

Teruyoshi Akiyama

Mitsuhiko Fujiwhara

Yoko Aoki

Hitoshi Kondou

Takeshi Nishi

Akira Mase

Toshiji Hamatani

Akira Sugawara

Hajime Suzuki

Masahiko Sato

Takashi Aida

Hideaki Ohta

Kiyohito Sawano

Kenichiro Shiroyama

Eiko Tamai

Akio Tachikawa

Hiroyasu Kumamoto

Kenichi Fujimori

Takashi Nishida

Keisuke Itakura

Yoshitaro Nakayama

Shunichi Harada

Izumi Kawada

Kenichiro Adachi

Minzo Sakaguchi

Tsunehide Yoneyama

Kouji Ishiguro

Mitsuhiko Fujiwara

Kiichi Mori

Atsushi Iwanami

Takumi Shinohara

Provided is a clear aqueous ceramide composition comprising 1.0 to 5.0% by weight, based on the total composition, of a ceramide represented by formula (I): wherein Rrepresents a hydrocarbon group having 9 to 17 carbon atoms; and Rrepresents an acyl group having 2 to 30 carbon atoms which can contain a hydroxyl group, a long-chain fatty acid having 12 to 24 carbon atoms, a nonionic surface active agent, and water. The clear aqueous composition is useful as cosmetics, bath agents, hair-care products, external preparations for the skin, skin protective preparations, particularly medical external preparations for the treatment or protection of the skin, or a component making up these preparations.

Clear aqueous ceramide composition

A fragrance composition having an excellent diffusivity and long-lasting property of fragrance and a cosmetic, toiletry, bath composition, food and drink and pharmaceutical having an excellent diffusivity and long-lasting property of fragrance by using a novel fixative. A compound represented by the following general formula (1) is incorporated in a fragrance composition or the foregoing products. The amount of the compound of the general formula (1) to be incorporated in the fragrance composition is preferably from 0.01 to 90% by weight. The amount of the compound of the general formula (1) to be incorporated directly in the foregoing products is preferably from 0.0001 to 2.0 times (by weight) the weight of the aroma composition and/or composition to be incorporated therein. In this arrangement, a fragrance composition or products having an enhanced diffusivity and long-lasting property of fragrance can be obtained without causing any safety problem on human being. wherein A represents H or OH group; B represents H or methyl group; and n represents an integer of from 0 to 2.

Method and agent for enhancing diffusivity and long-lasting property of fragrance

A geometrical isomer composition excellent in odor and in chemical resistance, which is applicable to a base material containing a strongly alkaline chemical or a strongly acidic chemical, which can suppress the deterioration with time and the color change of the base material in the case that the material is exposed to light, and which also have highly tasteful and unique fruity floral fragrance. A geometrical isomer composition containing 93 to 99% by weight of optically active trans-1-(2,2,6-trimethylcyclohexyl)-2-buten-1-one represented by Formula-1 or a mixture thereof and 7 to 1% by weight of optically active cis-1-(2,2,6-trimethylcyclohexyl)-2-buten-1-one represented by Formula-2 or a mixture thereof is, respectively, used

Isomer composition excellent in chemical resistance containing optically active trans-1-(2,2,6-trimethylcyclohexyl)-2-buten-1-one and fragrance compositions containing the isomer composition

Process for producing 2-alkyl-2cyclopentenones

Production process of cyclohexenyl ketones

(1S,6R)-2,2,6-Trimethylcyclohexyl methyl ketone and/or (1R,6S)-2,2,6-trimethylcyclohexyl methyl ketone, process for producing the same, and perfume composition containing the same

Melanin production inhibitors and skincare products containing such inhibitors

Aromatic bleaching agent composition

A process for producing a pivaloylacetic acid ester comprises reacting pivaloyl chloride with an acetoacetic acid ester of an alkyl group having 1 to 4 carbon atoms in the presence of at least one nitrogen-containing basic compound (a) selected from among pyridine compounds, N,N-dialkylanilines and imidazole compounds and from 0.01 to 0.5 mole equivalent, based on the pivaloyl chloride, of a magnesium compound (b) to thereby prepare a pivaloylacetoacetic acid ester and then alcholyzing or alkali-hydrolyzing the pivaloylacetoacetic acid ester to thereby give a pivaloylacetic acid ester having a high purity at a low cost.

Process for producing pivaloyl-acetic acid ester

Process for producing 2-vinylcyclododecanone

Process for producing &bgr;-butyrolactone homopolymer or copolymer

This invention relates to a novel lipid composition for use in cosmetics capable of increasing moisture-keeping ability or barrier function of the stratum corneum, protecting the skin and improving dry or rough skin, and to products which use the same, such as cosmetics and medicaments. Particularly, it relates to a lipid composition which comprises at least one component (A) selected from the group consisting of a 2-acylaminoalkane-1,3-diol and optically active compounds thereof, at least one component (B) selected from the group consisting of a 2-acylaminoalkane-1,3-diol in which at least one of the &agr;-position and &bgr;-position of the acyl group is substituted with hydroxyl group and optically active compounds thereof and at least one component (C) selected from sterols, wherein the components (A), (B) and (C) are mixed at a ratio that constructs a liquid crystal structure, and to products which contain the lipid composition, such as cosmetics and medicaments.

Lipid composition containing a liquid crystal structure

A method for safely and efficiently producing high purity 3-l-menthoxypropane-1,2-diol and intermediates to be used in the method. As shown in the following reaction formula, 3-l-menthoxypropane-1,2-diol represented by the chemical formula (IV) is produced by adding l-menthol to a 1,2-epoxy-3-halogenopropane represented by the general formula (I) (wherein X represents a halogen atom) in an organic solvent in the presence of a Lewis acid, thereby producing a 1-halogeno-3-l-menthoxypropan-2-ol represented by the general formula (II), allowing the first intermediate to react with an alkali metal salt of an aliphatic carboxylic acid having from 1 to 5 carbon atoms to produce a 1-acyloxy-2-substituted-3-l-menthoxypropane represented by the general formula (III) and then hydrolyzing the second intermediate.

Method for producing 3-l-menthoxypropane-1,2-diol

Process for producing optically active 3,7-dimethyl-6-octenol and process for producing intermediate therefor

Cis-3,7-dimethyl-2,7-octadienylamine containing from 2 to 10% by weight cis-3,7-dimethyl-2,7-octadienylamine is prepared by subjecting a mixture of an alkylamine and isoprene in a molar ratio of 1:4 to 1:4.5 to telomerization at 80 to 100&deg; C. for from 2.5 to 3.5 hours in the presence of an alkyllithium catalyst and/or phenyllithium catalyst.

Growing community of inventors

Kanagawa, Japan

Toshimitsu Hagiwara