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Hoyu Co Ltd patents


Recent patent applications related to Hoyu Co Ltd. Hoyu Co Ltd is listed as an Agent/Assignee. Note: Hoyu Co Ltd may have other listings under different names/spellings. We're not affiliated with Hoyu Co Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Hoyu Co Ltd-related inventors


First agent for oxidative hair dye and stabilizing color tone of oxidative hair dye composition

A first agent for oxidative hair dye of the present disclosure includes: an (A) component, which is at least one selected from the group consisting of resorcin, derivatives thereof, and salts thereof, in a content not exceeding 0.15% by mass; a (B) component, which is a coupler such as m-aminophenol,... Hoyu Co Ltd

Oxidative hair dye composition

An oxidative hair dye composition contains a first agent that includes an alkaline agent and is a cream formulation and a second agent that includes an oxidant and is liquid. The oxidative hair dye composition at the time of use has a viscosity at 25° C. of 3,000 to 10,000... Hoyu Co Ltd

Oxidative hair dye composition

An oxidative hair dye composition includes an alkaline agent and an oxidant. The oxidative hair dye composition further includes (A) α-naphthol in a content of 0.005 to 0.45% by mass, (B) at least one oily component selected from a higher alcohol, an ester, and a wax that are in a... Hoyu Co Ltd

Hair cosmetic composition

A hair cosmetic composition includes an alkaline agent and an oxidant, and is constituted as a hair dye or a hair bleaching/dye removing agent. The hair cosmetic composition further includes (A) a cellulose derivative and (B) a polyethylene glycol having a number average molecular weight of 2,000 or less. The... Hoyu Co Ltd

Hair cosmetic composition

A hair color which achieves excellent texture consistently from during plain rinsing in the treatment with the hair color to the dry state after the treatment is provided includes a hair cosmetic composition containing (A) one or more cationic polymers, (B) one or more cationic surfactants with a counter ion... Hoyu Co Ltd

Hdc activation inhibitor, hdc activation inhibition composition, antipruritic agent, and antipruritic agent composition

An HDC activation inhibitor or antipruritic agent which is at least one member selected from (1) a particular flavonoid, (2) a tannin, (3) chlorogenic acid, (4) a particular stilbenoid, or a glucoside or pharmaceutically acceptable derivative of any of (1) to (4) given above, or (5) a particular crude drug... Hoyu Co Ltd

Hair dye composition

An object of the invention is to provide a hair dye composition containing an oxidation dye or a direct dye which has excellent emulsion stability. In order to achieve the object, a hair dye composition containing a surfactant having a sterol skeleton is provided. As a result, a hair dye... Hoyu Co Ltd








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