Patents Assigned to Miyoshi Kasei, Inc.
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Patent number: 6790452Abstract: A pigment containing particles surface treated with N-acylglycine hydroxyaluminum and/or N-acyl-N-methylglycine hydroxyaluminum, and a pigment dispersion which contains such surface treated particles and a cosmetically acceptable oily material, having excellent dispersion stability and versatility (ease of dispersion and wide range of usage), because the particles are easily and uniformly dispersed in a short period of time at a high concentration in such a cosmetically acceptable oily material, thus a cosmetic product is thereby stable as an emulsion and has better usage than existing products.Type: GrantFiled: June 25, 2002Date of Patent: September 14, 2004Assignees: Miyoshi Kasei, Inc., U.S. Cosmetics CorporationInventors: Shigeru Kishida, Mark LePage, Tetsuo Murata, William Kalriess, Masaru Kobayashi, Isao Imai
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Patent number: 6730309Abstract: A powder comprising a core powder, a hydroxyapatite layered directly on the core, and zinc layered directly on the hydroxyapatite, suitable for use in cosmetics. The powder has a light reflection curve similar to that of the surface of the skin so that it exhibits good skin feeling and is superior in long wear effect for makeup and antibacterial effect. The powder is also superior in adsorbing, solidifying, or congealing the sebum components or body odor components, and is useful as an effective component for a sebum-adsorbent agent, a body deodorant or the like in addition to cosmetics.Type: GrantFiled: July 2, 2001Date of Patent: May 4, 2004Assignee: Miyoshi Kasei, Inc.Inventor: Masaakira Horino
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Patent number: 6482441Abstract: In the present invention, the surface-treated powder (the coated powder) can be used as a powder for cosmetics. With the coated powder for cosmetics, dispersibility of the powder and the functions proper to the powder, such as adhesion to the skin, aesthetic feel (using touch), covering power, coloring power, UV or IR light shielding performance, optical characteristics (properties) and the like, may be improved significantly. In particular, the coated powder is superior in affinity to oleophilic liquids, dispersibility, and dispersion stability and may be applied to cosmetics and powders in the fields other than cosmetics.Type: GrantFiled: July 6, 2000Date of Patent: November 19, 2002Assignee: Miyoshi Kasei, Inc.Inventors: Yukio Hasegawa, Ryo Ohara
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Patent number: 6416573Abstract: There is provided a composite pigment comprising a clay mineral and an aluminum hydroxide that adheres to the surface of said clay mineral, wherein said aluminum hydroxide contains an aluminum hydroxide in the form of a cup with cover, the basal plane of which adheres to the surface of said clay mineral, and preferably contains such specified aluminum hydroxide as much as possible, which shows excellent transparency, makes both the troubled morphology of the skin such as, wrinkles, pore openings, hard texture of the skin less noticeable, and the trouble color tone of the skin such as, blemishes, freckles, and acne traces less noticeable, when included in cosmetics, as well as having a smoother feel and lesser color drabness, and makes the skin look brighter, when compared to conventional products.Type: GrantFiled: February 8, 2001Date of Patent: July 9, 2002Assignee: Miyoshi Kasei, Inc.Inventors: Masaakira Horino, Miwa Nishizawa
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Publication number: 20020031534Abstract: There is provided a powder comprising a base substance usable as a powder for cosmetics, a hydroxyapatite and a zinc oxide, preferably a powder obtained on coating the surface of the substance with hydroxyapatite to form a hydroxyapatite coating layer on the surface of the base substance and fixing zinc oxide to the hydroxyapatite coating layer thereof, suitable for use in cosmetics.Type: ApplicationFiled: July 2, 2001Publication date: March 14, 2002Applicant: MIYOSHI KASEI, INC.Inventor: Masaakira Horino
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Publication number: 20010032570Abstract: There is provided a composite pigment comprising a clay mineral and an aluminum hydroxide that adheres to the surface of said clay mineral, wherein said aluminum hydroxide contains an aluminum hydroxide in the form of a cup with cover, the basal plane of which adheres to the surface of said clay mineral, and preferably contains such specified aluminum hydroxide as much as possible, which shows excellent transparency, makes both the troubled morphology of the skin such as, wrinkles, pore openings, hard texture of the skin less noticeable, and the trouble color tone of the skin such as, blemishes, freckles, and acne traces less noticeable, when included in cosmetics, as well as having a smoother feel and lesser color drabness, and makes the skin look brighter, when compared to conventional products.Type: ApplicationFiled: February 8, 2001Publication date: October 25, 2001Applicant: Miyoshi Kasei, Inc.Inventors: Masaakira Horino, Miwa Nishizawa
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Patent number: 6296860Abstract: Pigments and extender pigments coated with a mixture comprising at least N-acyl forms of naturally existing 14 amino acids, in particular, pigments and extender pigments processed with a mixture comprising at least N-acyl forms of 14 amino acids, obtainable from or obtained on hydrolysis of any one of animal proteins, such as silk and pearl, and plant proteins, such as wheat and soybeans, which can be mixed into cosmetics, and also cosmetics comprising the coated pigments and extender pigments are provided. Such N-acyl form therein may be in the salt form. The obtained pigments and extender pigments coated therewith in the present invention has extremely smooth tactile feeling, that is an optimum affinity to skin and/or hair (biocompatibility) when used in cosmetics, excellent application feeling on skin and/or hair without coarse feeling, and hence suitable for the powders in cosmetics to be combined.Type: GrantFiled: March 15, 1999Date of Patent: October 2, 2001Assignee: Miyoshi Kasei, Inc.Inventors: Yukio Hasegawa, Taizo Miyoshi, Ryo Ohara
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Patent number: 6200580Abstract: A powdered base material treated with organic silicon compounds comprised of a powdered base material to which is preferably affixed one or more of metal hydroxides, hydroxy group-containing inorganic oxides and the gelated products thereof and to which are also affixed a reactive alkyl polysiloxane and a methyl hydrogen polysiloxane, preferably the methyl hydrogen polysiloxane represented by the following formula: (CH3)3SiO[(CH3)2SiO]m(CH3HSiO)nSi(CH3)3, wherein m and n are each an integer, and m+n=7 to 50, more preferably 7 to 25 and m:n =1:0.2 to 1:4, more preferably m:n=1:0.5 to 1:2.Type: GrantFiled: September 9, 1998Date of Patent: March 13, 2001Assignee: Miyoshi Kasei, Inc.Inventors: Masaakira Horino, Hideki Takahashi
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Patent number: 6156324Abstract: Cosmetic compositions and cosmetics which have good dispersibility, high UV protection effect that lasts for a long period and high stability with suppressed optical activity and catalytic activity. The cosmetic contains 10.5 weight % of a composition comprising fine-grain titanium oxide (mean particle size 0.9 .mu.m) treated with 5% methylhydrogenpolysiloxane, zinc oxide (mean particle size 2.5 .mu.m) treated in the same manner and talc (mean particle size 4 .mu.m) treated in the same manner.Type: GrantFiled: May 20, 1997Date of Patent: December 5, 2000Assignee: Miyoshi Kasei, Inc.Inventors: Masaakira Horino, Yukio Hasegawa
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Patent number: 5968529Abstract: A dispersion of a moisture-retaining agent for use in a cosmetic article is disclosed which is characterized by having dispersed in the moisture-retaining agent an inorganic ultraviolet intercepting material having the molecules of the moisture-retaining agent adsorbed thereon by a mechanochemical reaction. This dispersion manifests an excellent ability to disperse the inorganic ultraviolet intercepting material, affords a highly effective protection against ultraviolet light, and exhibits excellent stability in a cosmetic article.A cosmetic article containing the dispersion is also disclosed.Type: GrantFiled: July 2, 1997Date of Patent: October 19, 1999Assignee: Miyoshi Kasei, Inc.Inventors: Masaakira Horino, Miwa Nishizawa
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Patent number: 5744126Abstract: Cosmetics having good dispersibility, high sustained ultraviolet light ray shielding, suppressed photochemical reactivity and catalytic activity of the ultraviolet ray shielding material and high stability. A milky lotion containing fine particles of zinc oxide surface-modified with 5% dimethyl polysiloxane (mean particle size, 1.6.mu.) and titanium oxide surface-modified with 5% dimethyl polysiloxane (mean particle size, 1.2.mu.).Type: GrantFiled: May 31, 1996Date of Patent: April 28, 1998Assignee: Miyoshi Kasei, Inc.Inventors: Masaakira Horino, Yukio Hasegawa