Patents by Inventor Eiichi Okazaki
Eiichi Okazaki 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: 8530546Abstract: This invention is drawn to a curable composition that has excellent smoothness when a plastic substrate is coated therewith. Also disclosed are active energy beam curable compositions, such as actinically curable compositions, that can be cured without using a photopolymerization initiator, or with the use of a small amount thereof. This object is achieved by the presence of surface treated inorganic oxide microparticles. Such particles are obtained by reacting an alkoxysilane compound (a1) represented by the Formula (1) below and inorganic oxide microparticles (a2) in the presence of water and an organic solvent: (P—SiO3/2)1-a(P—Si(R0)O2/2)a(O1/2R3)z (1) in which P denotes a maleimide containing group, R3 denotes a hydrogen atom or a monovalent organic group, R0 denotes a monovalent organic group, a is 0 or a positive number and satisfies 0?a <1, and z is a positive number and satisfies 0.1 ?z ?2.Type: GrantFiled: December 11, 2009Date of Patent: September 10, 2013Assignee: Toagosei Co., Ltd.Inventors: Kazumasa Inata, Eiichi Okazaki
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Publication number: 20130065062Abstract: A member for vehicle according to the present invention is equipped with a resinous substrate, and a protective film being formed on a surface of the resinous substrate partially at least. The protective film is made by curing a curing-type coating-agent composition that includes: Component (A) including a urethane adduct compound exhibiting weatherability in an amount of from 99 to 65 parts by mass; Component (B) comprising a reaction product between a colloidal silica and an alkoxysilane compound having a maleimide group in an amount of from 1 to 35 parts by mass; a radical-polymerization initiator serving as Component (C) in an amount of from 0.1 to 10 parts by mass; an ultraviolet absorber serving as Component (D) in an amount of from 1 to 12 parts by mass; and an organic solvent serving as Component (E) in an amount of from 10 to 1,000 parts by mass; with respect to a sum of Component (A) and Component (B) being taken as 100 parts by mass.Type: ApplicationFiled: May 24, 2011Publication date: March 14, 2013Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tetsuya Mitsuoka, Toshihisa Shimo, Kyoko Kumagai, Hidetaka Hayashi, Hiroaki Takashima, Naoharu Ueda, Kazumasa Inata, Takeshi Fujita, Yasuyuki Sanai, Eiichi Okazaki, Satoshi Yoneda
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Publication number: 20130065982Abstract: A curing-type coating-agent composition according to the present invention contains: Component (A) including a urethane adduct compound exhibiting weatherability in an amount of from 99 to 65 parts by mass; Component (B) comprising a reaction product between a colloidal silica and an alkoxysilane compound having a maleimide group in an amount of from 1 to 35 parts by mass; a radical-polymerization initiator serving as Component (C) in an amount of from 0.1 to 10 parts by mass; an ultraviolet absorber serving as Component (D) in an amount of from 1 to 12 parts by mass; and an organic solvent serving as Component (E) in an amount of from 10 to 1,000 parts by mass; with respect to a sum of Component (A) and Component (B) being taken as 100 parts by mass. The composition according to the present invention demonstrates excellent wear resistance and weatherability as a coating agent for plastic substrate, or the like, which is employed outside.Type: ApplicationFiled: May 24, 2011Publication date: March 14, 2013Applicants: TOAGOSEI CO., LTD., KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tetsuya Mitsuoka, Toshihisa Shimo, Kyoko Kumagai, Hidetaka Hayashi, Hiroaki Takashima, Naoharu Ueda, Kazumasa Inata, Takeshi Fujita, Yasuyuki Sanai, Eiichi Okazaki, Satoshi Yoneda
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Publication number: 20120244361Abstract: Disclosed is a vehicle member comprising a resin substrate and a protective film formed on at least a part of the surface of the resin substrate. The protective film is produced by curing a curable coating agent composition, wherein the curable coating agent composition comprises 95 to 65 parts by mass of a component (A) comprising an urethane adduct compound having weather resistance, 5 to 35 parts by mass of a component (B) comprising a specific organosilicon compound, 0.1 to 10 parts by mass of a component (C) which is a radical polymerization initiator, 1 to 12 parts by mass of a component (D) which is an ultraviolet ray absorber, and 10 to 1,000 parts by mass of a component (E) which is an organic solvent, with respect to 100 parts by mass of the components (A) and (B) in total.Type: ApplicationFiled: October 13, 2010Publication date: September 27, 2012Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tetsuya Mitsuoka, Hidetaka Hayashi, Toshihisa Shimo, Kyoko Kumagai, Naoharu Ueda, Kazumasa Inata, Takeshi Fujita, Yasuyuki Sanai, Eiichi Okazaki, Hiroshi Suzuki, Naomasa Furuta
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Publication number: 20120202911Abstract: Disclosed is a curable coating agent composition which exhibits excellent wear resistance and weather resistance when applied as a coating agent to plastic or other substrates to be used outdoors. The curable coating agent composition comprises 95 to 65 parts by mass of a component (A) comprising an urethane adduct compound having weather resistance, 5 to 35 parts by mass of a component (B) comprising a specific organosilicon compound, 0.1 to 10 parts by mass of a component (C) which is a radical polymerization initiator, 1 to 12 parts by mass of a component (D) which is an ultraviolet ray absorber, and 10 to 1,000 parts by mass of a component (E) which is an organic solvent, with respect to 100 parts by mass of the components (A) and (B) in total.Type: ApplicationFiled: October 13, 2010Publication date: August 9, 2012Applicants: TOAGOSEI CO., LTD., KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tetsuya Mitsuoka, Hidetaka Hayashi, Toshihisa Shimo, Kyoko Kumagai, Naoharu Ueda, Kazumasa Inata, Takeshi Fujita, Yasuyuki Sanai, Eiichi Okazaki, Hiroshi Suzuki, Naomasa Furuta
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Publication number: 20110319582Abstract: To provide a curable composition that has excellent smoothness when a plastic substrate is coated therewith and dried, causes hardly any warp after curing or swarf when cutting, and has excellent scratch resistance, transparency, adhesion, and UV resistance and, furthermore, to provide an active energy beam-curable composition that can be cured without using a photopolymerization initiator or with the use of a small amount thereof. A curable composition containing a reaction product (A) obtained by reacting an alkoxysilane compound (a1) represented by Formula (1) below and inorganic oxide microparticles (a2) in the presence of water and an organic solvent. (P—SiO3/2)1-a(P—Si(R0)O2/2)a(O1/2R3)z??(1) In Formula (1), P denotes a maleimide-containing group, R3 denotes a hydrogen atom or a monovalent organic group, R0 denotes a monovalent organic group, a is 0 or a positive number and satisfies 0?a<1, and z is a positive number and satisfies 0.1?z?2.Type: ApplicationFiled: December 11, 2009Publication date: December 29, 2011Inventors: Kazumasa Inata, Eiichi Okazaki
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Patent number: 7399574Abstract: Provided are a curable resin and a curable resin composition which have alkali-solubility and curability that can freely be adjusted and a high sensitivity, a liquid crystal panel substrate which can maintain an even cell gap, and a liquid crystal panel using the liquid crystal panel substrate to exhibit a superior display quality. A curable resin composition comprising an imide-containing copolymer having a molecular structure wherein a constitutional unit at least the following units are connected: a constitutional unit having a cyclic imide group represented by the formula (1), a constitutional unit having an acid functional group such as a carboxyl group; and a constitutional unit having a photopolymerizing functional group. In a liquid crystal panel substrate (color filter 103), plural spacers (column-shaped spacers 12) are disposed in a non-display region on a substrate 5.Type: GrantFiled: September 26, 2002Date of Patent: July 15, 2008Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shinji Hayashi, Shunsuke Sega, Hiromu Taguchi, Mitsutaka Hasegawa, Eiichi Okazaki, Keiji Maeda
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Publication number: 20070184353Abstract: A volume hologram recording material is provided that has high sensitivity, good storage stability after recording, and a large interference fringe refractive index difference, the material being used for forming a volume hologram recording film desirable as a data recording system. A volume hologram recording medium comprising same is also provided. The hologram recording material comprises as constituents a polymer matrix having a three-dimensional crosslinking structure, a polymerizable monomer, and a tertiary amine compound, and the polymer matrix is formed in the presence of the polymerizable monomer by a polymerization reaction that is different from a polymerization reaction of the polymerizable monomer.Type: ApplicationFiled: February 9, 2005Publication date: August 9, 2007Inventors: Shin Satou, Eiichi Okazaki, Kentarou Yachi, Satoshi Hattori
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Publication number: 20070172742Abstract: A volume hologram recording material is provided that has high sensitivity, good storage stability after recording, and a large interference fringe refractive index difference, the material being used for forming a volume hologram recording film desirable as a data recording system. A volume hologram recording medium comprising same is also provided. The volume hologram recording material is a polymer matrix having a three-dimensional crosslinking structure having a plurality of reactive groups, the polymer matrix being capable of recording, by means of refractive index difference, interference fringes that result from the interference of coherent light, the material not having a polymerizable monomer as a constituent.Type: ApplicationFiled: February 9, 2005Publication date: July 26, 2007Inventors: Kentarou Yachi, Shin Satou, Satoshi Hattori, Eiichi Okazaki
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Publication number: 20060182956Abstract: The present invention relates to a pressure-sensitive adhesive curable with active energy beams which is useful as a pressure-sensitive adhesive and a pressure-sensitive adhesive sheet. The present invention has been made for the purpose of finding an active energy beam-curable pressure-sensitive adhesive, which is liquid at ordinary temperature, and has practical crosslinkability and curability in the absence of a photopolymerization initiator even when irradiated with visible or ultraviolet light, and gives a cured coating film which does not suffer from discoloration but is excellent in various pressure-sensitive adhesive performances as well as water resistance and heat resistance.Type: ApplicationFiled: June 3, 2004Publication date: August 17, 2006Applicant: Toagosei Co., Ltd.Inventors: Daisuke Kamiya, Eiichi Okazaki
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Patent number: 7084186Abstract: Crosslinkable resin compositions that are cured easily by irradiation with active energy beams and particularly cured quickly with ultraviolet ray are provided, which comprises a polymer containing a maleimido group and an ethylenically unsaturated group. The composition may be an aqueous composition. They provide cured films which are excellent in durability, free from coloring and odors, and also excellent in abrasion resistance, adhesion to substrates, surface smoothness, and chemical resistance.Type: GrantFiled: June 19, 2001Date of Patent: August 1, 2006Assignee: Toagosei Co., Ltd.Inventors: Eiichi Okazaki, Hideo Matsuzaki, Keiji Maeda, Kuniniko Mizotani
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Publication number: 20050101683Abstract: The present invention relates to a pressure-sensitive adhesive curable with active energy beams, which is useful as a pressure-sensitive adhesive and pressure-sensitive adhesive sheet. It is liquid at ordinary temperature, undergoes practical crosslinking and curing in the absence of a photopolymerization initiator even when irradiated with visible light or ultraviolet light, and gives a cured coating film which suffers no discoloration and is excellent not only in various pressure-sensitive adhesive performances but in water resistance and heat resistance. The adhesive contains a compound which has two or more maleimide groups represented by the following formula (1) and is liquid at ordinary temperature: where in formula (1), R1 represents alkyl, aryl, arylalkyl, or halogen.Type: ApplicationFiled: February 27, 2003Publication date: May 12, 2005Inventors: Daisuke Kamiya, Yasuo Taniguchi, Eiichi Okazaki
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Patent number: 6890589Abstract: Into a mixture solution 2 of a high-refractive-index photo-curable resin A and a low-refractive-index photo-curable resin B, light capable of curing only the resin A is led through an optical fiber 1 so that a cured resin 211 of the resin A having a diameter substantially equal to the diameter of a core portion of the optical fiber is formed so as to extend from a tip of the optical fiber. Then, the residual mixture solution 2 is cured. In this manner, a module having the previously cured high-refractive-index resin 211 as an optical waveguide can be formed easily. On this occasion, the mixed state of the mixture solution 2 can be kept good enough to facilitate the formation of the high-refractive-index resin 211 when the solubility parameter ?A of the high-refractive-index photo-curable resin A and the solubility parameter ?B and volume fraction ?B of the low-refractive-index photo-curable resin B satisfy the following expression (4). |?A??B|<?7.5?B+6.Type: GrantFiled: December 10, 2002Date of Patent: May 10, 2005Assignee: Toyoda Gosei Co., Ltd.Inventors: Yukitoshi Inui, Kuniyoshi Kondo, Tatsuya Yamashita, Akari Kawasaki, Manabu Kagami, Hiroshi Ito, Shin Sato, Eiichi Okazaki
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Patent number: 6730763Abstract: A composition which is useful as a material with excellent weatherability, such as paints, printing ink, adhesive, filler, molding material, or resist, and is especially suitable for use in applications such as OPV and coating materials. The composition comprises as an active ingredient a polymer obtained by continuously polymerizing at a high temperature either a polymerizable monomer having a maleimide group and other polymerizable group or a polymerizable monomer having a succinimide group.Type: GrantFiled: September 27, 2002Date of Patent: May 4, 2004Assignee: Toagosei Co., Ltd.Inventors: Eiichi Okazaki, Michihiro Kaai
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Patent number: 6645617Abstract: A pressure-sensitive adhesive composition curable with actinic energy rays which comprises a copolymer comprising 0.1 to 30 wt. %, preferably 0.1 to 3 wt. %, structural units derived from an imide (meth)acrylate represented by general formula (1) and 70 to 99.9 wt. %, preferably 97 to 99.9 wt. %, structural units derived from an ethylenic monomer such as an alkyl (meth)acrylate having a C4-12 alkyl group. In formula (1), R1 and R2 each independently is hydrogen or C1-4 alkyl, one of R1 and R2 is hydrogen and the other is C1-4 alkyl, or R1 and R2 are bonded to each other to form a carbon ring; R3 is C1-6 alkylene; R4 is hydrogen or methyl; and n is an integer of 1 to 6. The pressure-sensitive adhesive composition is usable as one-pack type, has excellent storage stability, and does not necessitate any step such as heating or aging when used.Type: GrantFiled: May 30, 2001Date of Patent: November 11, 2003Assignee: Toagosei Co., Ltd.Inventors: Eiichi Okazaki, Tetsuji Jitsumatsu
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Publication number: 20030125408Abstract: Into a mixture solution 2 of a high-refractive-index photo-curable resin A and a low-refractive-index photo-curable resin B, light capable of curing only the resin A is led through an optical fiber 1 so that a cured resin 211 of the resin A having a diameter substantially equal to the diameter of a core portion of the optical fiber is formed so as to extend from a tip of the optical fiber. Then, the residual mixture solution 2 is cured. In this manner, a module having the previously cured high-refractive-index resin 211 as an optical waveguide can be formed easily. On this occasion, the mixed state of the mixture solution 2 can be kept good enough to facilitate the formation of the high-refractive-index resin 211 when the solubility parameter &dgr;A of the high-refractive-index photo-curable resin A and the solubility parameter &dgr;B and volume fraction &PHgr;B of the low-refractive-index photo-curable resin B satisfy the following expression (4).Type: ApplicationFiled: December 10, 2002Publication date: July 3, 2003Applicant: Toyoda Gosei Co., Ltd.Inventors: Yukitoshi Inui, Kuniyoshi Kondo, Tatsuya Yamashita, Akari Kawasaki, Manabu Kagami, Hiroshi Ito, Shin Sato, Eiichi Okazaki
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Patent number: 6559231Abstract: The present invention relates to a curing type water base resin composition comprising: (I) a copolymer obtained by copolymerizing an ethylenically unsaturated monomer (a) having a maleimide group, an ethylenically unsaturated monomer (b) having a carbonyl group and other ethylenically unsaturated monomer (c) and (II) a compound having two or more groups per molecule which are the same or different and selected from a hydrazide group, a semicarbazide group and hydrazone group and further comprising, if necessary, as an additional component: (III) a copolymer having a carbonyl group and/or (IV) a water base polyurethane resin having a carbonyl group or a hydrazine group.Type: GrantFiled: November 30, 2001Date of Patent: May 6, 2003Assignee: Kansai Paint Co., Ltd.Inventors: Mitsutaka Hasegawa, Hiroshi Inukai, Eiichi Okazaki, Nobushige Numa, Masami Sugishima, Koki Nakamura, Keiichiro Saikawa, Yushichi Ishihara
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Patent number: 6503961Abstract: An active energy beam-curable adhesive composition is provided. The adhesive composition comprises (A), (B), and if required, (C) components. The component (A) is urethane (meth)acrylate derived from polyester polyol or polycarbonate polyol. The component (B) is a compound having at least one ethylenically unsaturated group together with at least one a cyclic imide group represented by the following general formula (1) .Type: GrantFiled: August 25, 2000Date of Patent: January 7, 2003Assignee: Toagosei Co., Ltd.Inventors: Eiichi Okazaki, Ichiro Igarashi, Kunihiko Mizutani
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Patent number: 6465589Abstract: A paint composition is provided, which comprises a copolymer comprising the following constitutional units (A), (B), and (C) as essential components: (A) a (meth)acrylate monomer unit having a straight-chain, branched-chain, or cyclic alkyl group; (B) at least one monomer unit selected from the group consisting of a monomer unit having an unsaturated double bond and a hydroxyalkyl group, a monomer unit having an unsaturated double bond and an epoxy group, and a monomer unit having an unsaturated double bond and an alkoxysilyl group; and (C) a monomer unit having an unsaturated double bond and a maleimide group. The paint composition is excellent in weatherability and coating gloss. The composition may be contained in an organic solvent such as cyclic ethers, aromatic hydrocarbons, esters, and ketones. The organic solvent may be one that comprises 40% or more of a saturated hydrocarbon.Type: GrantFiled: December 1, 2000Date of Patent: October 15, 2002Assignee: Toagosei Co., Ltd.Inventors: Hiroshi Inukai, Eiichi Okazaki, Kunihiko Mizutani, Akihito Iida
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Publication number: 20020128379Abstract: The present invention relates to a curing type water base resin composition comprising:Type: ApplicationFiled: November 30, 2001Publication date: September 12, 2002Inventors: Mitsutaka Hasegawa, Hiroshi Inukai, Eiichi Okazaki, Nobushige Numa, Masami Sugishima, Koki Nakamura, Keiichiro Saikawa, Yushichi Ishihara