Patents by Inventor Kei-ichi Maruyama
Kei-ichi Maruyama 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: 11041038Abstract: Provided is a water repellent composition which does not use a fluorine-containing monomer, especially a fluoroalkyl group-containing monomer. A water repellent composition which contains (1) (a) a polymer which has a repeating unit derived from an amide group-containing monomer that is represented by formula: (wherein R1 represents an organic residue having an ethylenically unsaturated polymerizable group; R2 represents a hydrocarbon group having 7-30 carbon atoms; and R3 represents a hydrocarbon group having 1-5 carbon atoms) in an amount of 2-100% by weight relative to the polymer, and (2) a liquid medium.Type: GrantFiled: July 13, 2018Date of Patent: June 22, 2021Assignees: DAIKIN INDUSTRIES, LTD., NOF CORPORATIONInventors: Yuuki Yamamoto, Norimasa Uesugi, Ikuo Yamamoto, Kei-ichi Maruyama, Mitsuhiro Fukushima, Muneaki Iizuka
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Publication number: 20200239613Abstract: Provided is a water repellent composition which does not use a fluorine-containing monomer, especially a fluoroalkyl group-containing monomer. A water repellent composition which contains (1) (a) a polymer which has a repeating unit derived from an amide group-containing monomer that is represented by formula: (wherein R1 represents an organic residue having an ethylenically unsaturated polymerizable group; R2 represents a hydrocarbon group having 7-30 carbon atoms; and R3 represents a hydrocarbon group having 1-5 carbon atoms) in an amount of 2-100% by weight relative to the polymer, and (2) a liquid medium.Type: ApplicationFiled: July 13, 2018Publication date: July 30, 2020Applicants: DAIKIN INDUSTRIES, LTD., NOF CORPORATIONInventors: Yuuki YAMAMOTO, Norimasa UESUGI, Ikuo YAMAMOTO, Kei-ichi MARUYAMA, Mitsuhiro FUKUSHIMA, Muneaki IIZUKA
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Patent number: 9193654Abstract: Cosmetic bases consisting of alkylene oxide derivatives represented by the general formula (I): Z—{O(AO)l(EO)m—(BO)nH}a(I) wherein Z is a residue derived from a compound having three to nine hydroxyl groups by the removal of the hydroxyl groups; a is 3 to 9; AO is C3-4 oxyalkylone; EO is oxyethylene; l and m represent the average numbers of added C3-4 oxyalkylene molecules and oxyalkylene molecules respectively and satisfy the relationships: 1?1?50 and l?m?50 respectively; the AO/EO weight ratio is 1/5 to 5/1 and AO's and EO's may be added at random or in block; BO is oxyalkylene having 4 carbon atoms; and n represents the average number of added BO molecules and satisfies the relationship: 0.5?n?5.Type: GrantFiled: October 6, 2005Date of Patent: November 24, 2015Assignee: NOF CORPORATIONInventors: Kei-ichi Maruyama, Yoji Tezuka
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Patent number: 8518994Abstract: An object of the invention is to provide a novel arginine derivative and a cosmetic satisfactory in compatibility with the skin and hair, excellent in skin softening effect and skin-conditioning effect, and satisfactory in use feeling with little sticky feeling and tense feeling. Such present invention relates to an arginine derivative represented by the following general formula (1): wherein R1 and R2 are a hydrogen atom or a linear or branched monohydroxyalkyl group having 2 to 3 carbon atoms and at least one of R1 and R2 represents a linear or branched monohydroxyalkyl group having 2 to 3 carbon atoms; and R3 represents a hydrogen atom, an alkali metal atom, an ammonium, or an organic ammonium, and a cosmetic containing the same mixed therein.Type: GrantFiled: December 25, 2009Date of Patent: August 27, 2013Assignee: NOF CorporationInventors: Kazuaki Wakita, Susumu Tanaka, Kei-ichi Maruyama
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Patent number: 8232321Abstract: 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: GrantFiled: July 25, 2008Date of Patent: July 31, 2012Assignees: 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: 20110245344Abstract: An object of the invention is to provide a novel arginine derivative and a cosmetic satisfactory in compatibility with the skin and hair, excellent in skin softening effect and skin-conditioning effect, and satisfactory in use feeling with little sticky feeling and tense feeling. Such present invention relates to an arginine derivative represented by the following general formula (1): wherein R1 and R2 are a hydrogen atom or a linear or branched monohydroxyalkyl group having 2 to 3 carbon atoms and at least one of R1 and R2 represents a linear or branched monohydroxyalkyl group having 2 to 3 carbon atoms; and R3 represents a hydrogen atom, an alkali metal atom, an ammonium, or an organic ammonium, and a cosmetic containing the same mixed therein.Type: ApplicationFiled: December 25, 2009Publication date: October 6, 2011Applicant: NOF CORPORATIONInventors: Kazuaki Wakita, Susumu Tanaka, Kei-ichi Maruyama
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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: 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: 20090197948Abstract: The present invention is to provide a skin external preparation with good moisture retention, a rough skin improving effect, and an improved feeling in use. A skin external preparation comprising a polyoxyalkylene glycol/polyethylene glycol copolymer alkyl ether derivative represented by the below-described general formula (I): (formula I) Y—{O(EO)a/(AO)b—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 4 carbon atoms, and 1?a?70, 1?b?70. 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 20 to 100 mass %. The oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group are added randomly.Type: ApplicationFiled: May 22, 2007Publication date: August 6, 2009Applicants: Shiseido Co., Ltd., NOF CorporationInventors: Reiji Miyahara, Kouzou Hiwatari, Kei Watanabe, Takashi Oka, Kei-ichi Maruyama, Keiichi Yokozawa
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Publication number: 20070280897Abstract: A basic agent for use in cosmetics comprising an alkylene oxide derivative represented by the following formula (I) is provided: Z-{O(AO)l(EO)m-(BO)nH}a ??(I) (where Z represents a residue of a compound having 3 to 9 hydroxyl groups with the hydroxyl groups removed, a is from 3 to 9, AO represents an oxyalkylene group of 3 to 4 carbon atoms, EO represents oxyethylene group, l and m represent average additional mol numbers of the oxyalkylene groups of 3 to 4 carbon atoms and the oxyethylene groups, respectively, and 1?l=50, 1?m?50, the weight ratio (AO/EO) of AO to EO is from 1/5 to 5/1, AO and EO may be added in a random form or may be added in a lock form. BO represents oxyalkylene group with a number of carbon atoms of 4, and n is an average additional mol number and 0.5?n?5).Type: ApplicationFiled: October 6, 2005Publication date: December 6, 2007Applicant: NOF CORPORATIONInventors: Kei-ichi Maruyama, Yoji Tezuka
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Patent number: 6455639Abstract: An oxirane derivative and process for preparation of the same, having a high purity characterized in terms of gel permeation chromatography and thin layer chromatography. The oxirane derivative is useful as a starting material for medical purposes, and mainly drug delivery systems.Type: GrantFiled: August 19, 1999Date of Patent: September 24, 2002Assignee: NOF CorporationInventors: Tohru Yasukohchi, Kouzoh Sanchika, Chika Itoh, Kei-ichi Maruyama
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Publication number: 20020120075Abstract: The present invention provides an high purity and high molecular oxirane derivative useful as a starting material for medical purposes, mainly drug delivery system, and a process for the preparation thereof.Type: ApplicationFiled: August 19, 1999Publication date: August 29, 2002Inventors: TOHRU YASUKOHCHI, KOUZOH SANCHIKA, CHIKA ITOH, KEI-ICHI MARUYAMA
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Patent number: 5872191Abstract: A process for producing a polyoxyalkylene derivative substituted with succinimidyl group which comprises reacting a polyoxyalkylene compound having carboxyl group at ends with N-hydroxysuccinimide in an inert solvent in the presence of dicyclohexylcarbodiimide; dissolving an obtained reaction product into chloroform, an amount by weight of chloroform being 0.5 to 10 times as much as an amount by weight of the polyoxyalkylene compound having carboxyl group at ends; and crystallizing the polyoxyalkylene derivative substituted with succinimidyl group by adding an aliphatic hydrocarbon having 5 to 8 carbon atoms to a resultant solution, an amount by weight of the aliphatic hydrocarbon being 2 to 10 times as much as an amount by weight of chloroform. Materials can be handled with safety, and a highly pure polyoxyalkylene derivative substituted with succinimidyl group which does not cause turbidity in an aqueous solution and has an excellent quality as a material for drugs can be produced.Type: GrantFiled: June 3, 1997Date of Patent: February 16, 1999Assignee: NOF CorporationInventors: Kouzoh Sanchika, Tohru Yasukohchi, Kei-ichi Maruyama, Syunsuke Ohhashi
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Patent number: 5840973Abstract: A process for producing a polyoxyalkylenecarboxylic acid which comprises: (A) a step of obtaining a salt of a polyoxyalkylenecarboxylic acid by reacting a polyoxyalkylene compound having hydroxyl group at one or both ends of the molecule with a salt of a halogenated acetic acid or a salt of a halogenated propionic acid in an amount of 4 to 50 mol per 1 mol of the polyoxyalkylene compound and an alkali metal hydroxide in an amount of 8 to 70 mol per 1 mol of the polyoxyalkylene compound in the presence of an organic solvent at 80.degree. to 150.degree. C.Type: GrantFiled: August 27, 1997Date of Patent: November 24, 1998Assignee: NOF CorporationInventors: Tohru Yasukohchi, Kei-ichi Maruyama, Tsunekatsu Maruyama
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Patent number: 5767284Abstract: A process for producing a polyoxyalkylene derivative substituted with succinimidyl group which comprises reacting a polyoxyalkylene compound having carboxyl group at ends with N-hydroxysuccinimide in an inert solvent in the presence of dicyclohexylcarbodiimide; filtering an obtained reaction product; and crystallizing the polyoxyalkylene derivative substituted with succinimidyl group by adding isopropyl alcohol to a filtrate obtained by the filtration, an amount by weight of isopropyl alcohol being 1 to 100 times as much as an amount by weight of the polyoxyalkylene compound having carboxyl group at ends.Materials can be handled with safety in the process of the present invention, and a highly pure polyoxyalkylene derivative substituted with succinimidyl group which does not cause turbidity in an aqueous solution and has an excellent quality as a material for drugs can be produced.Type: GrantFiled: June 3, 1997Date of Patent: June 16, 1998Assignee: NOF CorporationInventors: Kouzoh Sanchika, Tohru Yasukohchi, Kei-ichi Maruyama, Syunsuke Ohhashi