Patents by Inventor Masaaki Ozawa

Masaaki Ozawa 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: 9334400
    Abstract: There is provided a highly branched lipophilic polymer that is excellent in blending and dispersing properties in a matrix resin, and is possible to provide surface modification properties such as excellent lipophilicity (anti-fingerprint property) and the like to a coating that is obtained from the resin composition while the intrinsic transparency of the resin is not impaired; and a photopolymeizable composition comprising the highly branched lipophilic polymer. A highly branched lipophilic polymer obtained by polymerizing a monomer A containing two or more radically polymerizable double bonds per molecule and a monomer B containing a C6-30 alkyl group or a C3-30 alicyclic group and at least one radically polymerizable double bond per molecule in the presence of 5 to 200 mol % of a polymerization initiator C relative to the number of moles of the monomer A. A photopolymeizable composition comprising the highly branched lipophilic polymer.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: May 10, 2016
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Motonobu Matsuyama, Masayuki Haraguchi, Masaaki Ozawa
  • Publication number: 20160083496
    Abstract: There is provided a highly branched lipophilic polymer that is excellent in blending and dispersing properties in a matrix resin, and is possible to provide surface modification properties such as excellent lipophilicity (anti-fingerprint property) and the like to a coating that is obtained from the resin composition while the intrinsic transparency of the resin is not impaired; and a photopolymeizable composition comprising the highly branched lipophilic polymer. A highly branched lipophilic polymer obtained by polymerizing a monomer A containing two or more radically polymerizable double bonds per molecule and a monomer B containing a C6-30 alkyl group or a C3-30 alicyclic group and at least one radically polymerizable double bond per molecule in the presence of 5 to 200 mol % of a polymerization initiator C relative to the number of moles of the monomer A. A photopolymeizable composition comprising the highly branched lipophilic polymer.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Motonobu MATSUYAMA, Masayuki HARAGUCHI, Masaaki OZAWA
  • Patent number: 9243110
    Abstract: A polymer containing a repeating unit structure having a triazine ring such as, for example, that which is represented by formula (25): can exhibit alone high heat resistance, high transparency, high refractive index, high solubility and low volume shrinkage; and can be used as a component in a film-forming composition as appropriate.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: January 26, 2016
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoya Nishimura, Yasuyuki Koide, Masaaki Ozawa
  • Patent number: 9243165
    Abstract: A film-forming composition including a triazine ring-containing hyperbranched polymer with a repeating unit structure indicated by formula (1), and inorganic micro particles is provided. This enables the provision of a film-forming composition capable of hybridizing without reducing dispersion of the inorganic micro particles in a dispersion fluid, capable of depositing a coating film with a high refractive index, and suitable for electronic device film formation. (In the formula, R and R? are mutually independent and indicate a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, or an aralkyl group, and Ar indicates a divalent organic group including either an aromatic ring or a heterocyclic ring, or both.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: January 26, 2016
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Taku Kato, Natsumi Murakami, Yoshinari Koyama, Naoya Nishimura, Masaaki Ozawa
  • Publication number: 20150299512
    Abstract: A film-forming composition including a triazine ring-containing hyperbranched polymer with a repeating unit structure Indicated by formula (1), and inorganic micro particles is provided. This enables the provision of a film-forming composition capable of hybridizing without reducing dispersion of the inorganic micro particles in a dispersion fluid, capable of depositing a coating film with a high refractive index, and suitable for electronic device film formation. In the formula, R and R? are mutually independent and indicate a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, or an aralkyl group, and Ar indicates a divalent organic group including either an aromatic ring or a heterocyclic ring, or both.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Taku KATO, Natsumi MURAKAMI, Yoshinari KOYAMA, Naoya NISHIMURA, Masaaki OZAWA
  • Publication number: 20150252147
    Abstract: An aromatic polyamide, which is obtained by reacting a benzene tricarboxylic acid or a derivative thereof with a diamine compound in the presence of a terminally blocked compound having a crosslinkable group and a functional group that is reactive with a benzene tricarboxylic acid such as 1-amino-2-propanol or a derivative thereof as expressed by scheme (1), and which has a weight average molecular weight of 1,000-100,000 in terms of polystyrene as determined by gel permeation chromatography, has good solubility in organic solvents, while maintaining heat resistance and transparency. A thick film can be formed using a film-forming composition that contains this aromatic polyamide.
    Type: Application
    Filed: June 27, 2013
    Publication date: September 10, 2015
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Daisuke Maeda, Kei Yasui, Masaaki Ozawa
  • Publication number: 20150210808
    Abstract: A polymer containing a repeating unit structure having a triazine ring such as, for example, that which is represented by formula (25): can exhibit alone high heat resistance, high transparency, high refractive index, high solubility and low volume shrinkage; and can be used as a component in a film-forming composition as appropriate.
    Type: Application
    Filed: April 3, 2015
    Publication date: July 30, 2015
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoya NISHIMURA, Yasuyuki KOIDE, Masaaki OZAWA
  • Publication number: 20150158959
    Abstract: A fluorine-containing highly branched polymer obtained by polymerizing a polyfunctional monomer A that has two or more radically polymerizable double bonds and all or a portion of which has a bisphenol structure, a monomer B having a fluoroalkyl group and at least one radically polymerizable double bond, within a molecule, and a monomer C having at least one ring-opening polymerizable group selected from the group including an epoxy group and an oxetanyl group, and having at least one radically polymerizable double bond, within a molecule, under the presence of a polymerization initiator D with an amount of 5% by mole to 200% by mole to the number of moles of the polyfunctional monomer A; an epoxy resin composition including the polymer; and an epoxy resin cured product obtained from the resin composition.
    Type: Application
    Filed: June 6, 2013
    Publication date: June 11, 2015
    Inventors: Tomoko Misaki, Motonobu Matsuyama, Masayuki Haraguchi, Masaaki Ozawa
  • Patent number: 9035100
    Abstract: A method for producing a phenylphosphonic acid metal salt composition, including reacting a phenylphosphonic acid compound (a) with a metal salt, metal oxide or metal hydroxide (b) that is present in an amount beyond the equivalent, the phenylphosphonic acid metal salt composition containing phenylphosphonic acid metal salt, and a surplus amount of the metal salt, the metal oxide or the surplus metal hydroxide (b). A crystal nucleating agent comprises the phenylphosphonic acid metal salt composition produced by the method.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: May 19, 2015
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Takeshi Suwa, Hisato Hayashi, Masahiro Hida, Masaaki Ozawa
  • Publication number: 20150133588
    Abstract: There is provided a polymer matrix that can suppress the orientational relaxation of an organic nonlinear optical compound, and a composition containing this polymer matrix and an organic nonlinear optical compound, and an optical material obtained by using the composition. A composition including: a norbornene imide polymer having a structural unit of Formula [1]; and an organic nonlinear optical compound: (where R1 is a C1-12 alkyl group optionally having a substituent or a C6-10 aryl group optionally having a substituent).
    Type: Application
    Filed: May 14, 2013
    Publication date: May 14, 2015
    Inventors: Shiyoshi Yokoyama, Kazuhiro Yamamoto, Andrew Mark Spring, Daisuke Maeda, Masaaki Ozawa, Keisuke Odoi
  • Patent number: 9029474
    Abstract: The present invention relates to a process for producing a polymer structure comprising: mixing and unifying a matrix polymer made of a linear polymer and a highly-branched polymer having hydrophilic functional groups at molecular ends and to form a structure containing the matrix polymer and the highly-branched polymer; and subjecting the obtained structure to either immersion in water and/or a hydrophilic solvent or exposure to an atmosphere of vapor of water and/or a hydrophilic solvent at a temperature ranging from a temperature lower than Tg of the matrix polymer by 30° C. to decomposition temperature of the matrix polymer; wherein the hydrophilic functional groups at the molecular ends of the highly-branched polymer are distributed in outermost surface of the polymer structure at an enhanced density. The present invention also relates to a process for producing a polymer structure in which vinyl polymer chains are grafted to at least a part of the hydrophilic functional groups.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: May 12, 2015
    Assignees: Nissan Chemical Industries, Ltd., Kyushu University
    Inventors: Masaaki Ozawa, Keisuke Odoi, Hironori Atarashi, Kei-ichi Akabori, Toshihiko Nagamura, Keiji Tanaka
  • Publication number: 20150115247
    Abstract: This film-forming composition includes, for example, a polymer, crosslinking agent and light-diffusing agent that contain a triazine ring-containing repeating unit structure such as that represented formula (17), and is able to provide cured films with good light diffusing properties. Furthermore, this film-forming composition, which includes the same polymer, crosslinking agent and fine inorganic particles having a cross-linkable functional group, is able to provide cured films with good high temperature and high humidity resistance.
    Type: Application
    Filed: May 10, 2013
    Publication date: April 30, 2015
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoya Nishimura, Takahiro Kaseyama, Yasufumi Shikauchi, Natsumi Murakami, Masashi Abe, Shigeru Mitsui, Masaaki Ozawa
  • Publication number: 20150094420
    Abstract: Provided is a film-forming composition containing organic monomers represented by formula (A) that are capable of providing triazine ring-containing polymers, crosslinking agents, and linear polymers, which contain a repeating unit structure represented by formula (1). Thus, a film-forming composition that is suitable as an embedding material can be provided, said film-forming composition: including triazine ring-containing polymers that are capable of achieving, by polymer alone, high heat resistance, high transparency, a high refractive index, high solubility and low volume shrinkage; and is capable of minimizing occurrences of cracks when embedding films are manufactured. Furthermore, a solvent-free film-forming composition that does not contain any solvents conducive to organic electroluminescent film degradation, can be cured at a low temperature, and is suitable for forming top-emission type organic electroluminescent elements, can be provided.
    Type: Application
    Filed: May 10, 2013
    Publication date: April 2, 2015
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoya Nishimura, Takahiro Kaseyama, Masaaki Ozawa
  • Publication number: 20150072128
    Abstract: There is provided a novel fluorine-containing highly branched polymer which imparts water repellency and oil repellency to the polycarbonate resin, further is excellent in miscibility and dispersibility in the resin, and can maintain luxurious feeling of the resin, such as transparency and gloss feeling. A fluorine-containing highly branched polymer obtained by polymerizing a monomer A having in a molecule a bisphenol A structure and two or more radical-polymerizable double bonds, and a monomer B having in a molecule a fluoroalkyl group and at least one radical-polymerizable double bond, in the presence of a polymerization initiator C in an amount of 5 to 200 mol %, based on the number of moles of the monomer A; a resin composition comprising the fluorine-containing highly branched polymer and a polycarbonate resin; and a surface-modified film obtained from the resin composition.
    Type: Application
    Filed: April 12, 2013
    Publication date: March 12, 2015
    Inventors: Motonobu Matsuyama, Masayuki Haraguchi, Masaaki Ozawa
  • Publication number: 20140371367
    Abstract: Provided is a triazine ring-containing hyperbranched polymer comprising the repeating unit structure represented by formula (1) and having one or more triazine ring terminals, said one or more triazine ring terminals being capped with a compound that differs from the diamine compound serving as the starting material for the polymer and has at least two active hydrogen groups. In addition to the polymer itself exhibiting high heat resistance, high transparency, a high refractive index, high light resistance, high solubility, and low volume shrinkage, it is also possible to use the polymer to provide a composition for film formation capable of yielding a thick film having high hardness. (In formula (1), R and R? each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, or an aralkyl group, and Ar represents a divalent organic group containing an aromatic ring and/or a heterocyclic ring.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 18, 2014
    Inventors: Naoya Nishimura, Kei Yasui, Masaaki Ozawa
  • Publication number: 20140330038
    Abstract: A method for producing a phenylphosphonic acid metal salt composition, including reacting a phenylphosphonic acid compound (a) with a metal salt, metal oxide or metal hydroxide (b) that is present in an amount beyond the equivalent, the phenylphosphonic acid metal salt composition containing phenylphosphonic acid metal salt, and a surplus amount of the metal salt, the metal oxide or the surplus metal hydroxide (b). A crystal nucleating agent comprises the phenylphosphonic acid metal salt composition produced by the method.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Takeshi SUWA, Hisato HAYASHI, Masahiro HIDA, Masaaki OZAWA
  • Patent number: 8877871
    Abstract: There is provided a switching element including two electrodes and an organic bistable material sandwiched between the electrodes, which is expected to be applied to an organic memory element or the like. A switching element which includes: two electrodes; and an organic thin film containing a metal fine particle and interposed between the electrodes, and which exhibits such a current bistability that the switching element has two stable resistance values in response to a voltage applied, the switching element characterized in that the metal fine particle is dispersed in the organic thin film with a metal fine particle-dispersing agent containing a polymer having a dithiocarbamate group and having a weight average molecular weight of 500 to 5,000,000.
    Type: Grant
    Filed: September 1, 2008
    Date of Patent: November 4, 2014
    Assignees: Kyushu University, Nissan Chemical Industries, Ltd.
    Inventors: Katsuhiko Fujita, Kei Yasui, Masaaki Ozawa, Keisuke Odoi, Hisashi Ichikawa
  • Publication number: 20140308503
    Abstract: A material for a surface modifying agent with which the problems of insufficient durability as abrasion and chemical resistances of surface modification effect in polyurethane surface modification by the prior surface modifying agent are resolved, and is immobilized in a matrix resin firmly and improved in durability. A reactive fluorine-containing highly branched polymer obtained by: polymerizing monomer A having in a molecule two or more radically polymerizable double bonds, monomer B having in a molecule a fluoroalkyl group and at least one radically polymerizable double bond, and monomer C having in a molecule an alcoholic hydroxy group and minimum, one radically polymerizable double bond, in presence of a polymerization initiator D in an amount of 5% to 200% by mole with respect to the number of moles of the monomer A; a curable composition containing the reactive fluorine-containing highly branched polymer; and a cured film obtained from the composition.
    Type: Application
    Filed: November 26, 2012
    Publication date: October 16, 2014
    Inventors: Hiroyasu Tamura, Masayuki Haraguchi, Masaaki Ozawa
  • Publication number: 20140248537
    Abstract: There is provided a novel slurry composition for forming a lithium secondary battery electrode which can improve homogeneity of an electrode active material and a conductive assistant even without using an organic solvent and can improve the binding of an electrode active material and a conductive assistant with an electrode collector, and a lithium secondary battery with improved charge/discharge cycle characteristics and battery capacity. A slurry composition for forming a lithium secondary battery electrode, characterized by comprising an electrode active material (A), a conductive assistant (B), and a pulverized cellulose fiber (C) as an aqueous binder, and a lithium secondary battery electrode and a lithium secondary battery which are obtained using the composition, and an aqueous binder used for the composition.
    Type: Application
    Filed: September 20, 2012
    Publication date: September 4, 2014
    Inventors: Hisato Hayashi, Masaaki Ozawa, Osamu Uesugi, Yoshihiro Kadoma
  • Publication number: 20140235771
    Abstract: There is provided a P3HA resin composition to which a crystal nucleating agent suitable for the promotion of the crystallization of a P3HA resin is added. A poly(3-hydroxyalkanoate) resin composition comprising: a poly(3-hydroxyalkanoate) resin; and a metal salt of a phenylphosphonic acid compound of Formula [1]: (where R1 and R2 are each independently a hydrogen atom, a C1-10 alkyl group, or a C2-11 alkoxycarbonyl group), wherein the metal salt is at least one selected from the group consisting of a lithium salt, a sodium salt, a potassium salt, a magnesium salt, a calcium salt, a barium salt, a manganese salt, an iron salt, a cobalt salt, a nickel salt, a copper salt, a silver salt, an aluminum salt, and a tin salt.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 21, 2014
    Inventors: Takeshi Suwa, Kazutoshi Odaka, Hisato Hayashi, Masaaki Ozawa