Patents by Inventor Akira Ishikubo
Akira Ishikubo 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).
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Publication number: 20100247458Abstract: The emulsified external skin preparation of the present invention is characterized by comprising a polyglycerol derivative represented by formula (1): wherein, m+2 represents the average polymerization degree of polyglycerol and 1?m?4; R1 is a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom; AO is an oxyalkylene group having 3 to 4 carbon atoms; and n is the average addition mole number of the oxyalkylene group and 1?m n?200. In a water-in-oil type external skin preparation, and especially in that containing a polar oil or a silicone oil, emulsion stability is improved. In an oil-in-water type external skin preparation, feeling in use and emulsion stability are improved. Especially, in an oil-in-water type external skin preparation containing hydrophobized powder, powder dispersion stability is improved as well as feeling in use and emulsion stability.Type: ApplicationFiled: July 26, 2006Publication date: September 30, 2010Applicant: SHISEIDO CO., LTD.Inventors: Hiroyuki Kakoki, Takashi Ohmori, Akio Nasu, Akira Ishikubo
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Publication number: 20100190864Abstract: The present invention is to provide a new compound having a rough skin improving effect, excellent in safety, excellent in texture in use, especially free of sticky feeling, excellent in refreshing feeling, and capable to improve the base agent stability as a component. An alkylene oxide derivative is characterized by being represented by the below-described general formula (I): (formula I) Z-{O-[(AO)a-(EO)b]-R}2??(I) (In the formula, Z is the residue obtained by removing hydroxyl groups from the dimer diol, EO is an oxyethylene group, AO is an oxyalkylene group having 3 to 4 carbon atoms, and the addition form is block-type. The symbols a and b are the average addition mole numbers of the above-described oxyalkylene group and the oxyethylene group, respectively, and they are 1?2 a?150 and 1?2 b?150. The percentage of the oxyethylene groups with respect to the sum of the oxyalkylene groups having 3 to 4 carbon atoms and the oxyethylene groups is 10 to 99 mass %.Type: ApplicationFiled: July 25, 2008Publication date: July 29, 2010Applicants: SHISEIDO COMPANY LTD., NOF CORPORATIONInventors: Takashi Ohmori, Akira Ishikubo, Yuki Sugiyama, Yuko Matsui, Tomoyuki Kawasoe, Yoji Tezuka, Hiroyasu Mizuno, Kei-ichi Maruyama
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Publication number: 20100137133Abstract: The present invention is affinity particles that are characterized by having phosphorylcholine groups represented by the following formula (1) covalently bonded onto the surface of inorganic powder and also by having ligands having specific affinity with a certain target substance covalently bonded or adsorbed onto the surface of inorganic powder. The object of the present invention is to provide an affinity separation method that uses affinity particles utilizing inexpensive inorganic particles and is capable of separating the target substance easily and with high accuracy.Type: ApplicationFiled: July 1, 2009Publication date: June 3, 2010Applicant: SHISEIDO COMPANY, LTD.Inventors: Katsuyuki Maeno, Kazuyuki Miyazawa, Akira Ishikubo, Kazuhiko Ishihara
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Publication number: 20100135938Abstract: The present invention provides an oil-in-water emulsion composition having excellent emulsion stability, low sticky feeling, and low skin irritation. The oil-in-water emulsion composition according to the present invention comprising (a) 1 to 20 mass % of a powder component, (b) 0.001 to 0.5 mass % of a cationic surfactant having two alkyl chains with 12 or more and 22 or less carbon atoms, (c) an oil phase component, and (d) a water phase component, having a structure wherein (a) powder particles are adsorbed on the oil droplets dispersed in the water phase.Type: ApplicationFiled: April 25, 2008Publication date: June 3, 2010Applicant: SHISEIDO COMPANY LTD.Inventors: Akira Ishikubo, Yuji Matsushita, Yosuke Ikebe, Taizo Fujiyama, Tomonori Toyoda, Kazuho Koiwa
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Publication number: 20100075882Abstract: The present invention was made in view of the above-described circumstances, and an object of the invention is to provide an external skin preparation having a rough skin improving effect, excellent in texture in use, especially excellent in smoothness, free of sticky feeling, and excellent in stability. Another object is to provide a skin cleanser excellent especially in usability and a cosmetic removing effect. That is, the external skin preparation of the present invention is characterized by comprising a block-type alkylene oxide derivative represented by the below-described formula (I). [formula 1] Y—[O(EO)a-(AO)b-(EO)c-R]k??(I) (In the formula, Y is the residue given by removing hydroxyl groups from a polyhydric alcohol having 3 to 6 hydroxyl groups, and k is the number of hydroxyl groups of the polyhydric alcohol. EO is an oxyethylene group, AO is an oxyalkylene group having 3 to 6 carbon atoms, and they are attached in a block-type, respectively.Type: ApplicationFiled: September 28, 2007Publication date: March 25, 2010Applicants: Shiseido Company Ltd., NOF CorporationInventors: Takashi Ohmori, Akira Ishikubo, Takashi Teshigawara, Yuki Sugiyama, Eiichiro Yagi, Kei-ichi Maruyama, Sue Taguchi, Yogi Tezuka
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Publication number: 20090321357Abstract: The present invention is affinity particles that are characterized by having phosphorylcholine groups represented by the following formula (1) covalently bonded onto the surface of inorganic powder and also by having ligands having specific affinity with a certain target substance covalently bonded or adsorbed onto the surface of inorganic powder. The object of the present invention is to provide an affinity separation method that uses affinity particles utilizing inexpensive inorganic particles and is capable of separating the target substance easily and with high accuracy.Type: ApplicationFiled: June 23, 2009Publication date: December 31, 2009Applicant: Shiseido Company, Ltd.Inventors: Katsuyuki Maeno, Kazuyuki Miyazawa, Akira Ishikubo, Kazuhiko Ishihara
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Publication number: 20090163616Abstract: An object of the present invention is to provide a gel composition with an excellent gelation ability and an excellent feeling in use. The gel composition comprises (a) 0.1 to 60 mass % of a block-type alkylene oxide derivative, (b) an oil, and (c) 0.Type: ApplicationFiled: June 6, 2007Publication date: June 25, 2009Applicant: SHISEIDO COMPANY LTD.Inventors: Akira Ishikubo, Takashi Ohmori, Yuki Suzuki
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Publication number: 20070274943Abstract: An emulsified composition for hair, which contains a nonionic surfactant that is a solid at normal temperature and has a Krafft point of at least 40° C., an oil component, and water, and which has an average emulsified particle size of 0.5 ?m or less, provides long-lasting luster. Further, an emulsified composition for hair, which is an water-in-oil emulsified composition and which contains the following two types of oil phase as the oil phase, improves the feel of hair immediately after use: 1) an oil phase with an average particle size of 0.5 ?m or less, formed with a nonionic surfactant that is a solid at normal temperature and has a Krafft point of at least 40° C., and 2) an oil phase with an average particle size of 0.5 to 100 ?m, formed with a surfactant and/or an alkyl-modified carboxyvinyl polymer.Type: ApplicationFiled: May 26, 2004Publication date: November 29, 2007Applicant: Shiseido Company LtdInventors: Akira Ishikubo, Tomoyuki Kawasoe, Shunsuke Takeda
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Publication number: 20070181503Abstract: The present invention is affinity particles that are characterized by having phosphorylcholine groups represented by the following formula (1) covalently bonded onto the surface of inorganic powder and also by having ligands having specific affinity with a certain target substance covalently bonded or adsorbed onto the surface of inorganic powder. The object of the present invention is to provide an affinity separation method that uses affinity particles utilizing inexpensive inorganic particles and is capable of separating the target substance easily and with high accuracy.Type: ApplicationFiled: May 18, 2005Publication date: August 9, 2007Inventors: Katsuyuki Maeno, Kazuyuki Miyazawa, Akira Ishikubo, Kazuhiko Ishihara
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Patent number: 7004969Abstract: Artificial skin having a thickness of 100 to 1,000 ?m, and prepared from a polymer which, when formed into a thin film having a thickness of 100–1,000 ?m, exhibits a percent transmission of light having a wavelength of 450–280 nm of at least 10%. In the artificial skin of the present invention, grooves which imitate furrows are provided on one surface. Also disclosed is a method for evaluating UV screening agents making use of the artificial skin of the present invention, on the basis of the relation between UV shielding power of a UV screening agent and UV transmission through the artificial skin.Type: GrantFiled: December 17, 2002Date of Patent: February 28, 2006Assignee: Shiseido Company, Ltd.Inventors: Akira Ishikubo, Tohru Okamoto, Hideo Nakajima
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Publication number: 20030109927Abstract: Artificial skin having a thickness of 100 to 1,000 &mgr;m, and prepared from a polymer which, when formed into a thin film having a thickness of 100-1,000 &mgr;m, exhibits a percent transmission of light having a wavelength of 450-280 nm of at least 10%. In the artificial skin of the present invention, grooves which imitate furrows are provided on one surface. Also disclosed is a method for evaluating UV screening agents making use of the artificial skin of the present invention, on the basis of the relation between UV shielding power of a UV screening agent and UV transmission through the artificial skin.Type: ApplicationFiled: December 17, 2002Publication date: June 12, 2003Applicant: Shiseido Company, LimitedInventors: Akira Ishikubo, Tohru Okamoto, Hideo Nakajima
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Publication number: 20020045941Abstract: Artificial skin having a thickness of 100 to 1,000 &mgr;m, and prepared from a polymer which, when formed into a thin film having a thickness of 100-1,000 &mgr;m, exhibits a percent transmission of light having a wavelength of 450-280 nm of at least 10%. In the artificial skin of the present invention, grooves which imitate furrows are provided on one surface. Also disclosed is a method for evaluating UV screening agents making use of the artificial skin of the present invention, on the basis of the relation between UV shielding power of a UV screening agent and UV transmission through the artificial skin.Type: ApplicationFiled: May 18, 2001Publication date: April 18, 2002Applicant: Shiseido Company, Ltd.Inventors: Akira Ishikubo, Tohru Okamoto, Hideo Nakajima