Patents by Inventor Masayoshi Wada
Masayoshi Wada 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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Patent number: 8673151Abstract: A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a material having amino groups with a chemical compound containing an aldehyde derivative obtained by the oxidative ring-opening reaction of glycerophosphorylcholine. The method of the present invention provides various materials such as medical materials having superior biocompatibility and hydrophilicity.Type: GrantFiled: June 24, 2009Date of Patent: March 18, 2014Assignee: Shiseido Company, Ltd.Inventors: Kazuyuki Miyazawa, Taketoshi Kanda, Yousuke Toujo, Aya Ohkubo, Osamu Shirota, Kenichi Sakuma, Masayoshi Wada
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Patent number: 8426627Abstract: A phosphorylcholine group-containing chemical compound represented by the following formula (1): wherein, m denotes 2-6 and n denotes 1-4, X1, X2, and X3, are independent of each other, and denote a methoxy group, ethoxy group, or halogen; up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group: R is a structure represented by the following formula (2) (the chemical compound of formula (1) in the structure of formula (2) being expressed as A-R—B): A-(CH2)L—B??(2) wherein, in formula formulas (2), L is 1-6.Type: GrantFiled: November 29, 2010Date of Patent: April 23, 2013Assignee: Shiseido Company, Ltd.Inventors: Yousuke Toujo, Kazuyuki Miyazawa, Taketoshi Kanda, Hiroshi Kutsuna, Kenichi Sakuma, Masayoshi Wada, Yukimitsu Suda
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Patent number: 8168145Abstract: The present invention provides a porous titanium oxide having improved ultraviolet protection ability, usability, and transparency in the visible region and a process for producing thereof. The porous titanium oxide powder according to the present invention can be obtained by adding an alkali to a titanium salt solution containing a polyalcohol and then thermally hydrolyzing the solution. In addition, it is possible that after the addition of the alkali, an acid is further added to the solution and then the thermal hydrolysis is conducted, or that after thermal hydrolysis, further heat treatment with an acid is conducted. A porous titanium oxide has a mean particle size of 0.01 to 1.0 ?m and a specific surface area of 50 m2/g or more.Type: GrantFiled: September 21, 2007Date of Patent: May 1, 2012Assignee: Shiseido Company Ltd.Inventors: Masayoshi Wada, Shoichiro Shio
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Publication number: 20110130583Abstract: A phosphorylcholine group-containing chemical compound represented by the following formula (1). In this formula, m denotes 2-6 and n denotes 1-4. X1, X2, and X3, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group. R is one of the structures in the following formulas (2)-(4) (the chemical compound of formula (1) in the structures of the following formulas (2)-(4) is expressed as A-R—B). In formulas (2)-(4), L is 1-6, P is 1-3. Also a surface modifier consisting of the aforementioned phosphorylcholine group-containing chemical compound, modified powder treated with said surface modifier, a chromatography packing consisting of a modified carrier treated with said surface modifier, a filter treated with said surface modifier, and a glass device treated with said surface modifier.Type: ApplicationFiled: November 29, 2010Publication date: June 2, 2011Applicant: SHISEIDO COMPANY, LTD.Inventors: Yousuke Toujo, Kazuyuki Miyazawa, Taketoshi Kanda, Hiroshi Kutsuna, Kenichi Sakuma, Masayoshi Wada, Yukimitsu Suda
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Patent number: 7906670Abstract: A phosphorylcholine group-containing chemical compound represented by the following formula (1). In this formula, m denotes 2-6 and n denotes 1-4. X1, X2, and X3, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group. R is one of the structures in the following formulas (2)-(4) (the chemical compound of formula (1) in the structures of the following formulas (2)-(4) is expressed as A-R—B). In formulas (2)-(4), L is 1-6, P is 1-3. Also a surface modifier consisting of the aforementioned phosphorylcholine group-containing chemical compound, modified powder treated with said surface modifier, a chromatography packing consisting of a modified carrier treated with said surface modifier, a filter treated with said surface modifier, and a glass device treated with said surface modifier.Type: GrantFiled: December 1, 2004Date of Patent: March 15, 2011Assignee: Shiseido Co., Ltd.Inventors: Yousuke Toujo, Kazuyuki Miyazawa, Taketoshi Kanda, Hiroshi Kutsuna, Kenichi Sakuma, Masayoshi Wada, Yukimitsu Suda
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Publication number: 20100285252Abstract: A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a material having amino groups with a chemical compound containing an aldehyde derivative obtained by the oxidative ring-opening reaction of glycerophosphorylcholine. The method of the present invention provides various materials such as medical materials having superior biocompatibility and hydrophilicity.Type: ApplicationFiled: June 24, 2009Publication date: November 11, 2010Applicant: Shiseido Company, Ltd.Inventors: Kazuyuki Miyazawa, Taketoshi Kanda, Yousuke Toujo, Aya Ohkubo, Osamu Shirota, Kenichi Sakuma, Masayoshi Wada
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Publication number: 20100009192Abstract: The present invention provides a porous titanium oxide having improved ultraviolet protection ability, usability, and transparency in the visible region and a process for producing thereof. The porous titanium oxide powder according to the present invention can be obtained by adding an alkali to a titanium salt solution containing a polyalcohol and then thermally hydrolyzing the solution. In addition, it is possible that after the addition of the alkali, an acid is further added to the solution and then the thermal hydrolysis is conducted, or that after thermal hydrolysis, further heat treatment with an acid is conducted. A porous titanium oxide has a mean particle size of 0.01 to 1.0 ?m and a specific surface area of 50 m2/g or more.Type: ApplicationFiled: September 21, 2007Publication date: January 14, 2010Applicant: SHISEIDO COMPANY LTD.Inventors: Masayoshi Wada, Shoichiro Shio
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Publication number: 20090258068Abstract: The present invention provides a powder that can display excellent protection ability in both UV-A and UV-B regions. The titanium oxide-zinc oxide aggregate powder comprises an aggregate formed by the aggregation of porous titanium oxide particles and zinc oxide particles, and said porous titanium oxide particle is an aggregate of primary fine particles of titanium oxide. The production method of the titanium oxide-zinc oxide aggregate powder comprises the steps of: (a) hydrolyzing, with heating, an aqueous solution containing a titanium salt and an aliphatic alcohol; (b) adding a water-soluble zinc salt to a suspension of a precipitate obtained by the hydrolysis with heating in step (a), and then neutralizing the suspension with an alkali; and (c) calcining a precipitate obtained by the neutralization in step (b).Type: ApplicationFiled: July 9, 2007Publication date: October 15, 2009Applicant: SHISEIDO COMPANY LTD.Inventors: Shoichiro Shio, Masayoshi Wada, Yukimitsu Suda, Yuko Nagare
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Patent number: 7560023Abstract: A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a material having amino groups with a chemical compound containing an aldehyde derivative obtained by the oxidative ring-opening reaction of glycerophosphorylcholine. The method of the present invention provides various materials such as medical materials having superior biocompatibility and hydrophilicity.Type: GrantFiled: November 20, 2003Date of Patent: July 14, 2009Assignee: Shiseido Company, Ltd.Inventors: Kazuyuki Miyazawa, Taketoshi Kanda, Yousuke Toujo, Aya Ohkubo, Osamu Shirota, Kenichi Sakuma, Masayoshi Wada
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Patent number: 7498071Abstract: It is an object of the present invention to provide a laminated member with an recorded information code, having a high reading accuracy, which do not detract from product design and which do not require a special reading apparatus. A laminated member 10 of the present invention comprises a transparent material layer 12 on which an information code is recorded, and a reflection-reduction layer 14 provided at the opposite side from a side where the information code is observed. The transparent layer 12 comprises low-reflectance portions 18 and high-reflectance portions 16 having a higher reflectance than the low-reflectance portions 18. The information code is recorded as a distributed pattern of the high-reflectance portions 16. The reflection-reduction layer 14 reduces reflected light advancing to the transparent material layer 12.Type: GrantFiled: January 16, 2004Date of Patent: March 3, 2009Assignee: Shiseido Co., Ltd.Inventors: Kenichi Sakuma, Masayoshi Wada, Asa Kimura
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Publication number: 20090010971Abstract: The method for producing a disintegratable zinc oxide powder of the present invention is characterized by comprising: neutralizing an aqueous solution containing a water-soluble zinc salt and a carboxylic acid or an aqueous solution containing a water-soluble zinc carboxylate with an alkali carbonate to produce precipitate; and firing the precipitate to obtain zinc oxide powder. As a water-soluble zinc salt, zinc chloride or zinc acetate is preferably used. As an acid, acetic acid is preferably used. As an alkali carbonate, sodium carbonate is preferably used. The disintegratable zinc oxide powder has the morphology in which the primary particles of zinc oxide are aggregated to form secondary particles, and these secondary particles are further aggregated to form the zinc oxide powder. The powder can achieve excellent UV protection capability, excellent transparency, and excellent feeling in use through its disintegration. Also, it has good usability and good handling properties.Type: ApplicationFiled: June 2, 2006Publication date: January 8, 2009Applicant: SHISEIDO CO., LTD.Inventors: Shoichiro Shio, Yuko Ishikawa, Yukimitsu Suda, Masayoshi Wada
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Publication number: 20080214855Abstract: A phosphorylcholine group-containing chemical compound represented by the following formula (1). In this formula, m denotes 2-6 and n denotes 1-4. X1, X2, and X3, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group. R is one of the structures in the following formulas (2)-(4) (the chemical compound of formula (1) in the structures of the following formulas (2)-(4) is expressed as A-R—B). In formulas (2)-(4), L is 1-6, P is 1-3. Also a surface modifier consisting of the aforementioned phosphorylcholine group-containing chemical compound, modified powder treated with said surface modifier, a chromatography packing consisting of a modified carrier treated with said surface modifier, a filter treated with said surface modifier, and a glass device treated with said surface modifier.Type: ApplicationFiled: December 1, 2004Publication date: September 4, 2008Inventors: Yousuke Toujo, Kazuyuki Miyazawa, Taketoshi Kanda, Hiroshi Kutsuna, Kenichi Sakuma, Masayoshi Wada, Yukimitsu Suda
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Patent number: 7022409Abstract: A multi color changing powder with a bluish base appearance color of which color tone varies according to the observation direction is provided. A pleochroism powder of the present invention comprises a flaky mica having a coating which consists of two layers wherein one of said two layers is a first layer comprising a metal oxide of titanium coated on said flaky mica and the other is a second layer comprising metal oxides of cobalt and aluminum coated on said first layer.Type: GrantFiled: June 5, 2002Date of Patent: April 4, 2006Assignee: Shiseido Co., Ltd.Inventors: Yukie Yoda, Kenichi Sakuma, Masayoshi Wada, Asa Kimura
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Publication number: 20060060533Abstract: A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a material having amino groups with a chemical compound containing an aldehyde derivative obtained by the oxidative ring-opening reaction of glycerophosphorylcholine. The method of the present invention provides various materials such as medical materials having superior biocompatibility and hydrophilicity.Type: ApplicationFiled: November 20, 2003Publication date: March 23, 2006Inventors: Kazuyuki Miyazawa, Taketoshi Kanda, Yousuke Toujo, Aya Ohkubo, Osamu Shirota, Kenichi Sukuma, Masayoshi Wada
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Publication number: 20060051562Abstract: It is an object of the present invention to provide a laminated member with an recorded information code, having a high reading accuracy, which do not detract from product design and which do not require a special reading apparatus. A laminated member 10 of the present invention comprises a transparent material layer 12 on which an information code is recorded, and a reflection-reduction layer 14 provided at the opposite side from a side where the information code is observed. The transparent layer 12 comprises low-reflectance portions 18 and high-reflectance portions 16 having a higher reflectance than the low-reflectance portions 18. The information code is recorded as a distributed pattern of the high-reflectance portions 16. The reflection-reduction layer 14 reduces reflected light advancing to the transparent material layer 12.Type: ApplicationFiled: January 16, 2004Publication date: March 9, 2006Inventors: Kenichi Sakuma, Masayoshi Wada, Asa Kimura
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Patent number: 6851644Abstract: Continuous photo film includes a support of resin film having a back surface. A photosensitive layer of photographic emulsion is disposed on a surface of the support opposite to the back surface. A conveying roller conveys the continuous photo film. The conveying roller includes a roller body of metal. A hardness reinforcer layer is formed on a surface of the roller body by thermal spraying of ceramic or cermet, so that the roller body surface is prevented from being scratched or ground by the back surface of the film.Type: GrantFiled: July 18, 2002Date of Patent: February 8, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Akihiro Sanda, Takashi Kubo, Hideki Matsuzawa, Masayoshi Wada
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Patent number: 6846547Abstract: The purpose of the invention is to provide a forgery/alteration protective material which containing a retroreflecting material and having an improved forgery/alteration protecting effect against the process of the upper part of the material. In order to achieve the above purpose, the forgery/alteration protective material 2 according to the invention where a retroreflecting material 4 for returning the incident light substantially along the path along which the incident light travels is provided and a transparent film 6 is layered on the retroreflecting material 4 is characterized in that a low transmittance layer 8 formed of a material having a lowerer light transmittance than that of the transparent film 6 is provided between the retroreflecting material 4 and the transparent film layer 6, and the light transmittance of the low transmittance layer 8 is 45% or higher to the light in the wavelength range of 420 nm to 700 nm.Type: GrantFiled: June 29, 2001Date of Patent: January 25, 2005Assignee: Shiseido Co., Ltd.Inventors: Masayoshi Wada, Asa Kimura
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Publication number: 20030138609Abstract: The purpose of the invention is to provide a forgery/alteration protective material which containing a retroreflecting material and having an improved forgery/alteration protecting effect against the process of the upper part of the material.Type: ApplicationFiled: January 7, 2003Publication date: July 24, 2003Inventors: Masayoshi Wada, Asa Kimura
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Publication number: 20030138497Abstract: An object of the invention is to provide an inorganic antibacterial/antifungal agent that have distinguished multiple functions on the whole with respect to antibacterial and antifungal activities, safety, stability, economical efficiency, and so onType: ApplicationFiled: September 26, 2002Publication date: July 24, 2003Applicant: Shiseido Co., Ltd.Inventors: Kenichi Sakuma, Shuji Nishihama, Masayoshi Wada, Hideyuki Gomyo
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Publication number: 20030108722Abstract: A multi color changing powder with a bluish base appearance color of which color tone varies according to the observation direction is provided. A pleochroism powder of the present invention comprises a flaky mica having a coating which consists of two layers wherein one of said two layers is a first layer comprising a metal oxide of titanium coated on said flaky mica and the other is a second layer comprising metal oxides of cobalt and aluminum coated on said first layer.Type: ApplicationFiled: June 5, 2002Publication date: June 12, 2003Applicant: Shiseido Co., Ltd.Inventors: Yukie Yoda, Kenichi Sakuma, Masayoshi Wada, Asa Kimura