Patents by Inventor Kenichiro Shiroyama

Kenichiro Shiroyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9375501
    Abstract: The present invention relates to a deodorant composition containing (a) a polyphenol compound or a plant extract containing a polyphenol compound, (b) a basic substance, and (c) a metal salt. The deodorant composition of the present invention is capable of providing a deodorizing effect in a short period of time when it is applied to a malodor source, is capable of providing an excellent deodorizing activity and is also excellent in the store stability.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: June 28, 2016
    Assignee: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Tadahiro Hiramoto, Kenichiro Shiroyama, Hiroyasu Kumamoto
  • Patent number: 8865191
    Abstract: Bioavailability of a ceramide, which is a minimally soluble material of a skin care composition exhibiting an excellent effect is enhanced by combining at least one component selected from ceramides represented by Formula (1): and at least one component selected from aliphatic alcohol having 12 to 30 carbon atoms.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: October 21, 2014
    Assignee: Takasago International Corporation
    Inventors: Kenya Ishida, Kenichiro Shiroyama
  • Patent number: 8313755
    Abstract: 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 R1 represents a hydrocarbon group having 9 to 17 carbon atoms; and R2 represents 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.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: November 20, 2012
    Assignee: Takasago International Corporation
    Inventors: Kenichiro Shiroyama, Kenya Ishida, Hideaki Ohta, Toshimitsu Hagiwara
  • Publication number: 20100158840
    Abstract: The present invention relates to a deodorant composition containing (a) a polyphenol compound or a plant extract containing a polyphenol compound, (b) a basic substance, and (c) a metal salt. The deodorant composition of the present invention is capable of providing a deodorizing effect in a short period of time when it is applied to a malodor source, is capable of providing an excellent deodorizing activity and is also excellent in the store stability.
    Type: Application
    Filed: March 22, 2007
    Publication date: June 24, 2010
    Applicant: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Tadahiro Hiramoto, Kenichiro Shiroyama, Hiroyasu Kumamoto
  • Publication number: 20100019197
    Abstract: The present invention provides a deoxidant composition gentle to human bodies and environments which is excellent in the deoxidation effect, does not generate heat during use, can be put to a metal detector, and gives no problems to a human body even when it is ingested accidentally. Specifically, the present invention relates to a deoxidant composition comprising a polyphenol derivative obtainable by subjecting a polyphenol to a reaction using an alkaline solvent under the coexistence of an oxygen molecule at a pH during reaction of 6.5 or more, and one member selected from water, a water-donating compound and a moisture absorbent.
    Type: Application
    Filed: September 4, 2009
    Publication date: January 28, 2010
    Inventors: Tadahiro Hiramoto, Hiroyasu Kumamoto, Kenichiro Shiroyama
  • Publication number: 20090092644
    Abstract: The present invention relates to a locked-in type powder comprising polyphenols, the locked-in type powder which is excellent in long-term stability, substantially does not show decrease in color tone and discoloration even after long-term storage, also does not result in change in odor quality and decrease in deodorizing and antioxidizing effects, and is capable of retaining good effects over a long period of time, and a solid preparation comprising the same.
    Type: Application
    Filed: March 22, 2007
    Publication date: April 9, 2009
    Applicant: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Kenichiro Shiroyama, Tadahiro Hiramoto, Hiroyasu Kumamoto
  • Publication number: 20080230744
    Abstract: The present invention provides a deoxidant composition gentle to human bodies and environments which is excellent in the deoxidation effect, does not generate heat during use, can be put to a metal detector, and gives no problems to a human body even when it is ingested accidentally. Specifically, the present invention relates to a deoxidant composition comprising a polyphenol derivative obtainable by subjecting a polyphenol to a reaction using an alkaline solvent under the coexistence of an oxygen molecule at a pH during reaction of 6.5 or more, and one member selected from water, a water-donating compound and a moisture absorbent.
    Type: Application
    Filed: April 27, 2004
    Publication date: September 25, 2008
    Inventors: Tadahiro Hiramoto, Hiroyasu Kumamoto, Kenichiro Shiroyama
  • Publication number: 20070166256
    Abstract: The present invention relates to a hair cosmetic composition capable of treating hairs without causing damages to hairs and injuries of skins and having oxidation fixing effect of permanent wave and dyeing effect equal to or superior to those in a usual case. Specifically, it relates to a hair cosmetic composition comprising a polyphenol derivative obtainable by subjecting a polyphenol to a reaction using an alkaline solvent under the coexistence of oxygen molecules at a pH value during reaction of 6.5 or more.
    Type: Application
    Filed: April 27, 2004
    Publication date: July 19, 2007
    Applicant: TAKASAO INTERNATIONAL CORPORATION
    Inventors: Kenichiro Shiroyama, Hiroyasu Kumamoto, Tadahiro Hiramoto
  • Publication number: 20060210522
    Abstract: Bioavailability of a ceramide, which is a minimally soluble material of a skin care composition exhibiting an excellent effect is enhanced by combining at least one component selected from ceramides represented by Formula (1): and at least one component selected from aliphatic alcohol having 12 to 30 carbon atoms.
    Type: Application
    Filed: April 29, 2004
    Publication date: September 21, 2006
    Applicant: Takasago International Corporation
    Inventors: Kenya Ishida, Kenichiro Shiroyama
  • Patent number: 6544535
    Abstract: A composition containing a cooling-sensation imparting substance and a cationic surfactant results in an excellent cooling sensation effect. A composition additionally containing vanilylalkyl ether, wherein the alkyl group has 1 to 6 carbon atoms, is also effective as a composition for improving cooling sensation effect. The present composition for improving cooling sensation effect improves cooling sensation effect while also sustaining that effect. In particular, the present invention provides a composition for improving cooling sensation effect that is able to impart a cooling sensation effect and sustain that effect when used after washing the hair using a shampoo containing no cooling sensation substance or a shampoo containing only a small amount of cooling sensation substance.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: April 8, 2003
    Assignee: Takasago International Corp.
    Inventors: Kazutoshi Sakurai, Kenichiro Shiroyama
  • Publication number: 20020090351
    Abstract: A composition containing a cooling-sensation imparting substance and a cationic surfactant results in an excellent cooling sensation effect. A composition additionally containing vanilylalkyl ether, wherein the alkyl group has 1 to 6 carbon atoms, is also effective as a composition for improving cooling sensation effect. The present composition for improving cooling sensation effect improves cooling sensation effect while also sustaining that effect. In particular, the present invention provides a composition for improving cooling sensation effect that is able to impart a cooling sensation effect and sustain that effect when used after washing the hair using a shampoo containing no cooling sensation substance or a shampoo containing only a small amount of cooling sensation substance.
    Type: Application
    Filed: October 10, 2001
    Publication date: July 11, 2002
    Inventors: Kazutoshi Sakurai, Kenichiro Shiroyama
  • Patent number: 6379659
    Abstract: A keratin fiber strengthening agent comprising 0.001 to 20% by weight of at least one (2S,3R)-2-acylaminoalkane-1,3-diol represented by formula (I): wherein R1 represents a straight-chain alkyl group having 9 to 17 carbon atoms; and R2 represents an acyl group having 2 to 24 carbon atoms which may contain at least one hydroxy group or unsaturated bond is disclosed. A method for improving physical properties, such as breaking strength, of keratin fiber such as hair comprising applying the keratin fiber strengthening agent to keratin fiber by adhesion, coating or impregnation is also disclosed.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: April 30, 2002
    Assignee: Takasago International Corporation
    Inventors: Kenya Ishida, Kazutoshi Sakurai, Miharu Ogura, Tetsuro Yamasaki, Kenichiro Shiroyama
  • Publication number: 20020010215
    Abstract: Provided is a clear aqueous ceramide composition comprising 1.0 to 5.
    Type: Application
    Filed: May 4, 2001
    Publication date: January 24, 2002
    Inventors: Kenichiro Shiroyama, Kenya Ishida, Hideaki Ohea, Toshimitsu Hagiwara
  • Patent number: 6328982
    Abstract: A cool feeling composition having an excellent cool feeling is obtained by blending at least one cool feeling agent selected from the group consisting of l-menthol, l-isopulegol, 3-(l-menthoxy)propane-1,2-diol and p-menthane-3,8-diol with vanillyl butyl ether. In this cool feeling composition, vanillyl butyl ether is preferably used in an amount, on the weight basis, {fraction (1/1000)} to 2 times as much as l-menthol, or {fraction (1/1000)} to ½time as much as l-isopulegol, 3-(l-menthoxy)propane-1,2-diol and p-menthane-3,8-diol. The cool feeling composition is capable of imparting a long-lasting and strong cool feeling when used in cosmetics, toiletries, cataplasms, bath agents, pharmaceutical compositions, etc.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: December 11, 2001
    Assignee: Takasago International Corporation
    Inventors: Kenichiro Shiroyama, Kiyohito Sawano, Hideaki Ohta