Patents by Inventor Naoya Ikushima
Naoya Ikushima 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: 9156931Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating, a cured product obtained by curing the composition, the cured product having a high refractive index and high toughness and being not easily cracked or chipped when cutting, and a plastic lens obtained by curing the composition. A radical polymerizable composition includes phenylbenzyl(meth)acrylate (A), a urethane(meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.Type: GrantFiled: March 12, 2012Date of Patent: October 13, 2015Assignee: DIC CorporationInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Patent number: 9150680Abstract: There are provided a radically polymerizable composition that has a low viscosity suitable for use in coating and that forms a cured product having a high refractive index, a cured product formed by curing the composition, and plastic lens formed by curing the composition. The radically polymerizable composition includes, as essential components, phenylbenzyl acrylate (A); and bis[(meth)acryloylmethyl]biphenyl (B) or biphenyl compound (C) having a molecular structure in which biphenyl structures are bonded to each other through a methylene.Type: GrantFiled: March 12, 2012Date of Patent: October 6, 2015Assignee: DIC CorporationInventors: Akihiro Kondo, Atsuhisa Miyawaki, Nobuo Kobayashi, Naoya Ikushima, Kazuaki Hatsusaka
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Publication number: 20150190563Abstract: Provided is: a resin compound having an immobilized sugar chain, obtained by reacting a an epoxy-group-containing compound (B) with a hydrophilic resin (A), followed by reacting an amino-group-containing compound (C) therewith, and then reacting a sugar therewith; a virus-removal-polymer substrate obtained by coating the resin compound on a polymer support to immobilize a sugar chain that can adsorb a virus; and a biocompatible material using the resin compound.Type: ApplicationFiled: July 19, 2013Publication date: July 9, 2015Inventors: Hirohide Nakaguma, Naoto Sakurai, Naoya Ikushima, Tetsuro Suzuki
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Publication number: 20150057422Abstract: There are provided a radically polymerizable composition that has a low viscosity suitable for use in coating and that forms a cured product having a high refractive index, a cured product formed by curing the composition, and plastic lens formed by curing the composition. The radically polymerizable composition includes, as essential components, phenylbenzyl acrylate (A); and bis[(meth)acryloylmethyl]biphenyl (B) or biphenyl compound (C) having a molecular structure in which biphenyl structures are bonded to each other through a methylene.Type: ApplicationFiled: March 12, 2012Publication date: February 26, 2015Applicant: DIC CORPORATIONInventors: Akihiro Kondo, Atsuhisa Miyawaki, Nobuo Kobayashi, Naoya Ikushima, Kazuaki Hatsusaka
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Patent number: 8927650Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating and a cured product and a plastic lens each obtained by curing the composition, the cured product having a high refractive index, good adhesiveness to a plastic film substrate, and good adhesiveness kept even under high-temperature and high-humidity conditions. The radical polymerizable composition includes phenylbenzyl (meth)acrylate (A), an epoxy (meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.Type: GrantFiled: December 30, 2013Date of Patent: January 6, 2015Assignee: DIC CorporationInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Patent number: 8912300Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating and a cured product and a plastic lens each obtained by curing the composition, the cured product having a high refractive index, good adhesiveness to a plastic film substrate, and good adhesiveness kept even under high-temperature and high-humidity conditions. The radical polymerizable composition includes phenylbenzyl (meth)acrylate (A), an epoxy (meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.Type: GrantFiled: March 12, 2012Date of Patent: December 16, 2014Assignee: DIC CorporationInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Publication number: 20140148525Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating, a cured product obtained by curing the composition, the cured product having a high refractive index and high toughness and being not easily cracked or chipped when cutting, and a plastic lens obtained by curing the composition. A radical polymerizable composition includes phenylbenzyl(meth)acrylate (A), a urethane(meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.Type: ApplicationFiled: March 12, 2012Publication date: May 29, 2014Applicant: DIC CORPORATIONInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Publication number: 20140128562Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating and a cured product and a plastic lens each obtained by curing the composition, the cured product having a high refractive index, good adhesiveness to a plastic film substrate, and good adhesiveness kept even under high-temperature and high-humidity conditions. The radical polymerizable composition includes phenylbenzyl (meth)acrylate (A), an epoxy (meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.Type: ApplicationFiled: March 12, 2012Publication date: May 8, 2014Applicant: DIC CORPORATIONInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Publication number: 20140114037Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating and a cured product and a plastic lens each obtained by curing the composition, the cured product having a high refractive index, good adhesiveness to a plastic film substrate, and good adhesiveness kept even under high-temperature and high-humidity conditions. The radical polymerizable composition includes phenylbenzyl (meth)acrylate (A), an epoxy (meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.Type: ApplicationFiled: December 30, 2013Publication date: April 24, 2014Applicant: DIC CORPORATIONInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Publication number: 20140054227Abstract: The present invention provides a sugar-immobilized polymer substrate for removing a virus, the polymer substrate allowing efficient removal of a hepatitis virus or the like in a fluid, and a method for removing a virus. In particular, the present invention provides a sugar-immobilized polymer substrate for removing a hepatitis virus or the like, the polymer substrate allowing, in the case of an application to blood of a living body, reduction in the amount of blood taken out of the body, reduction in the removal amount of blood useful components, low invasiveness, and shortening of the operation cycle; and a method for removing a virus. A hollow fiber membrane according to the present invention can be used as a module having a function of effectively removing a virus and a function of not removing useful plasma components.Type: ApplicationFiled: February 29, 2012Publication date: February 27, 2014Applicant: DIC CORPORATIONInventors: Naoto Sakurai, Naoya Ikushima, Tetsuro Suzuki
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Patent number: 5498602Abstract: Oligosaccharide aromatic glycoside sulfates and physiologically acceptable salts thereof, are disclosed. Further, antiviral agents having these sulfate compounds as the active components, and particularly an antiviral agent, wherein the virus is one which causes AIDS (Acquired Immune Deficiency Syndrome), are disclosed. The active components or the glycoside sulfates, and the salts thereof, are characterized by an oligosaccharide aromatic glycoside sulfate in which the hydrogen of the position-1 hydroxyl group of the terminal sugar of an oligosaccharide is substituted with a specified formula having an alkyl group consisting of 1 to 18 carbons, an oxygen or no oxygen, and an allylene group. The number of constituent monosaccharides in the oligosaccharide portion is preferably within a range of 2 to 20. Further, 10% or more of the remaining hydroxyl groups of the sugar subunits are subjected to sulfated esterification.Type: GrantFiled: September 11, 1992Date of Patent: March 12, 1996Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Tadao Shoji, Nahoko Takahashi, Naoya Ikushima, Toshiyuki Uryu, Takashi Yoshida, Naoki Yamamoto, Hideki Nakashima, Kaname Katsuraya, Koichiro Adachi, Fusayo Kataoka
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Patent number: 5459257Abstract: A sulfated oligoglycoside acylate comprising monosaccharides of a single or two kinds as the constituents, wherein the hydrogen in the hydroxyl group at the 1-position of a reducing end sugar of the oligosaccharide formed via the glycoside bond of these monosaccharides has been substituted with an aglycon selected from a group consisting of alkyl groups, aromatic alkyl groups, aromatic alkoxy groups and tocopheryl groups; from 12 to 80% of the residual hydroxyl groups have been acylated with an acyl group selected from a group consisting of aliphatic acyl groups and aromatic acyl groups; and 88 to 20% thereof have been sulfated; or a physiologically acceptable salt thereof provided that compounds wherein the aglycon is an alkyl group and the acyl group is an aliphatic acyl group are excluded is disclosed. Further, an antiviral agent, which exerts a long-lasting antiviral action particularly on HIV, containing said compound as an active ingredient is disclosed.Type: GrantFiled: January 7, 1994Date of Patent: October 17, 1995Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Tadao Shoji, Akira Kasai, Osamu Misumi, Naoya Ikushima, Naoki Yamamoto, Hideki Nakashima, Kazuhiko Inazawa, Nahoko Takahashi
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Patent number: 5280111Abstract: The present invention relates to novel tocopheryl oligosaccharides, acylated tocopheryl oligosaccharides, sulfated tocopheryl oligosaccharides, and antiviral agents including the sulfated tocopheryl oligosaccharides as active ingredients. In the tocopheryl oligosaccharide, the hydrogen atom of the hydroxy group at the 1-position in the terminal sugar moiety of an oligosaccharide which consists of 3.about.20 of identical or different repeating monosaccharide units selected from the group consisting of glucose, galactose, mannose, talose, idose, altrose, allose, glucose, xylose, arabinose, rhamnose, fucose, and fructose, which are glycoside-linked, is substituted by a tocopherol group. In the acylated tocopheryl oligosaccharides, each of any hydroxy group of the sugar moiety, other than the hydroxy group at the 1-position in the terminal sugar moiety of the oligosaccharide described above, is protected by an acyl group.Type: GrantFiled: March 24, 1992Date of Patent: January 18, 1994Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Tadao Shoji, Naoya Ikushima, Kaname Katsuraya, Nahoko Takahashi, Fusayo Kobayashi, Toshiyuki Uryu, Takashi Yoshida, Naoki Yamamoto, Hideki Nakashima
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Patent number: 5268461Abstract: An alkylated oligosaccharide and the acetyl derivative of the same, both useful as the raw material for producing lowly toxic surfactants or medicines. The alkylated oligosaccharide is prepared by substituting with an alkyl group having a linear or branched chain the hydrogen atom of the hydroxy group at the 1-position of a terminal sugar moiety of an oligosaccharide in which glucose moieties are .beta.(1.fwdarw.3)-glucoside-linked, or of an oligosaccharide in which galactose is .beta.(1.fwdarw.4)-glycoside-linked at the 4-position in the galactose moiety of lactose and in which galactose moieties are .beta.(1.fwdarw.4)-glycoside-linked in succession to the newly formed terminal galactose moieties. The invention also includes an acetyl derivative of the oligosaccharide, wherein the hydroxy groups excluding the 2-positional hydroxy group adjacent to the alkyl-ether-linking position in the terminal sugar moiety are acetylated, and a mixture thereof.Type: GrantFiled: February 25, 1992Date of Patent: December 7, 1993Assignee: Dainippon Ink & Chemicals, Inc.Inventors: Tadao Shoji, Nahoko Takahashi, Koichiro Adachi, Naoya Ikushima, Kaname Katsuraya, Toshiyuki Uryu, Takashi Yoshida