Patents by Inventor Yutaka Otsuki

Yutaka Otsuki 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: 5368977
    Abstract: A positive type photosensitive resin composition contains (a) a quinone diazido phenolic resin represented by the formula: ##STR1## wherein R.sup.1 is an alkyl group having 1 to 4 carbon atoms, R.sup.2 is a bivalent hydrocarbon residue having 5 to 16 carbon atoms provided that groups bound to R.sup.2 do not bind with the same carbon atom of R.sup.2, D.sup.1, D.sup.2 and D.sup.3 and are the same or different groups and each represent a hydrogen atom or a quinone diazido unit represented by ##STR2## provided that a molar ratio of the hydrogen atom to the quinone diazido unit is 0 to 10, m is a number of 0 to 10, n is a number of 1 or 2, and l.sub.1, l.sub.2 and l.sub.3 are the same or different numbers and each represent a number of 1 to 3; and (b) an alkali-soluble resin.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: November 29, 1994
    Assignee: Nippon Oil Co. Ltd.
    Inventors: Eiji Yoda, Hitoshi Yuasa, Yutaka Otsuki
  • Patent number: 5360870
    Abstract: A novel hydroxyphenylated resin having excellent thermal stability, weather resistance, and electrical properties useful as a resin for a printed circuit board, a resin for sealing a semiconductor, an insulating materials, and the like; a process for preparing the resin; and curable epoxy composition comprising the same. Specifically, the present invention provides a novel resin containing a number of phenolic hydroxyl groups and having a high softening point and substantially no double bonds; and a process for preparing the same wherein a butadiene oligomer and a phenol compound are used as starting materials; and a curable epoxy resin composition comprising the same suitable for applications such as a sealing material.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: November 1, 1994
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Masami Enomoto, Hitoshi Yuasa, Fumiaki Oshimi, Yutaka Otsuki
  • Patent number: 5344899
    Abstract: A phenolic resin is represented by the formula (1) ##STR1## wherein R.sup.1 denotes a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, m denotes an integer of from 0 to 10 and n denotes 0, 1 or 2. A method for producing the phenolic resin involves reacting in the presence of an acid catalyst 3a,4,7,7a-tetrahydroindene and a phenol represented by the formula (2) ##STR2## wherein R.sup.1 denotes a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and n denotes 0, 1 or 2. An epoxy resin composition for encapsulation contains: (a) a curable epoxy resin, (b) the above phenolic resin, (c) a curing promotor, and (d) an inorganic filler.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: September 6, 1994
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Masami Enomoto, Susumu Kubota, Fumiaki Oshimi, Hitoshi Yuasa, Yutaka Otsuki
  • Patent number: 5336752
    Abstract: A method is provided for producing a phenolic resin represented by the formula (I) ##STR1## wherein R.sup.1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R.sup.2 is a divalent cyclic hydrocarbon residue having 5 to 18 carbon atoms, p is a number of from 0 to 10 and q is a number of 1 or 2. The method involves reacting a phenol with an unsaturated cyclic hydrocarbon compound having two or more carbon-carbon double bonding in the presence of an acid catalyst; and processing a resulting reaction product by a hydrotalcite compound represented by the formula (II)M.sub.1-x.sup.2+ M.sub.x.sup.3+ (OH).sub.2+x-ny A.sub.y.sup.n-.m(H.sub.2 O)(II)where M.sup.2+ is a divalent, magnesium ion, a divalent zinc ion, a divalent calcium ion, a divalent nickel ion, a divalent cobalt ion, a divalent manganese ion or a divalent copper ion, M.sup.3+ is a trivalent aluminum ion, a trivalent iron ion or a trivalent chromium ion, A.sup.n- is HCO.sub.3.sup.-, CO.sub.3.sup.2- or OH.sup.-, and x, y and m each are 0.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: August 9, 1994
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Fumiaki Oshimi, Susumu Kubota, Masami Enomoto, Yutaka Otsuki
  • Patent number: 5334468
    Abstract: A method for producing a color filter involves (A) forming a photosensitive coating film on a transparent electrically conductive layer provided on an outermost surface of a substrate having an alignment film, and exposing the photosensitive coating film to light in a first irradiation amount through a mask having a predetermined pattern of a certain light transmittance and at least once displacing the mask to another position on the photosensitive coating film and exposing the photosensitive coating film to light in a second irradiation amount different from the first irradiation amount through the mask; (B) developing and removing a photosensitive coating film portion exposed to light in one of smallest and largest irradiation amounts for exposing the transparent electrically conductive layer and electrodepositing a colored coating on the exposed electrically conductive layer for forming a colored layer thereon, operation of developing and removing the photosensitive coating film and electrodepositing the c
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: August 2, 1994
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Yukio Yamasita, Haruyoshi Sato, Toru Nakamura, Hitoshi Yuasa, Yutaka Otsuki
  • Patent number: 5314770
    Abstract: A method for producing a color filter involves (A) forming a photosensitive coating film on an electrically conductive layer formed on a surface of a substrate, and exposing the photosensitive coating film trough a mask having patterns of at least three different degrees of light transmittances; (B) developing and removing a photosensitive coating film portion registering with one of the patterns of smallest and largest degrees of light transmittances for exposing the electrically conductive layer and electrodepositing a colord coating on the exposed electrically conductive layer for forming a colored layer thereon, operation of developing and removing the photosensitive coating film followed by electrodeposition being repeated for the respective patterns of different degrees of light transmittances in sequence of difference in transmittances for producing different colored layers, respectively; (C) selectively forming a metal layer in interstices present between the colored layers, and (D) transcribing the c
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: May 24, 1994
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Yukio Yamasita, Haruyoshi Sato, Toru Nakamura, Hitoshi Yuasa, Yutaka Otsuki
  • Patent number: 5314769
    Abstract: A method for producing a color filter involves (A) forming a photosensitive coating film on a transparent electrically conductive layer formed on a surface of a transparent substrate and exposing the photosensitive coating film through a mask having patterns of at least three different degrees of light transmittances; (B) developing and removing a photosensitive coating film region registering with one of the patterns of smallest and largest degrees of light transmittances for exposing the transparent electrically conductive layer and electrodepositing a colored coating on the exposed transparent electrically conductive layer for forming a colored layer thereon, operation of developing and removing the photosensitive coating film and electrodepositing the colored coating being repeated for the respective patterns of different degrees of light transmittances in sequence of difference in light transmittances to form different colored layers, respectively; and (C) selectively forming a metal layer on at least on
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: May 24, 1994
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Yukio Yamasita, Haruyoshi Sato, Toru Nakamura, Hitoshi Yuasa, Yutaka Otsuki
  • Patent number: 5246816
    Abstract: A cationic electrodeposition negative type resist composition contains (A) 100 parts by weight of a resin obtained by reacting an unsaturated group-containing isocyanate compound with epoxidized liquid polybutadiene to which at least a secondary amine has been added, and (B) 0.3 to 20 parts by weight of a sensitizer.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: September 21, 1993
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Yukio Yamasita, Toru Nakamura, Yutaka Otsuki
  • Patent number: 5214541
    Abstract: A method for producing a color filter involves (A) forming a photosensitive coating film on a transparent electrically conductive layer provided on an outermost surface of a substrate having an alignment film, and exposing the photosensitive coating film to light through a mask having patterns of at least three different degrees of light transmittances; (B) developing and removing a photosensitive coating film portion registering with one of the patterns of smallest and largest degrees of light transmittances for exposing the transparent electrically conductive layer and electrodepositing a colored coating on the exposed electrically conductive layer for forming a colored layer thereon, operation of developing and removing the photosensitive coating film and electrodepositing the colored coating being repeated for the respective patterns of different degrees of light transmittances in sequence of difference in light transmittances to form different colored layers, respectively; and (Z) transcribing the colore
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: May 25, 1993
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Yukio Yamasita, Haruyoshi Sato, Toru Nakamura, Hitoshi Yuasa, Yutaka Otsuki
  • Patent number: 5214542
    Abstract: A method for producing a color filter involves the steps of: (A) forming a photosensitive coating film on a transparent electrically conductive layer formed on a surface of a transparent substrate, and exposing the photosensitive coating film through a mask having patterns of at least three different degrees of light transmittances; (B) developing and removing a photosensitive coating film portion registering with one of the patterns of smallest and largest degrees of light transmittances for exposing the transparent electrically conductive layer, and electrodepositing a colored coating on the exposed transparent electrically conductive layer for forming a colored layer thereon; and (C) repeating the step (B) for the respective patterns of different degrees of light transmittances in sequence of difference in transmittances for producing different colored layers, respectively.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: May 25, 1993
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Yukio Yamasita, Toru Nakamura, Haruyoshi Sato, Hitoshi Yuasa, Yutaka Otsuki
  • Patent number: 5096800
    Abstract: A resin composition for forming a durable protection coating contains (A) an alkali-soluble resin which is a polymer of a conjugated diene and has a monoamidated succinic acid group represented by the following formula (I) of: ##STR1## wherein R.sup.1 and R.sup.2 each stand for a hydrogen atom, a halogen atom or an organic residue having 1 to 3 carbon atoms; and R.sup.3 stands for an organic residue having 1 to 16 carbon atoms; (B) a pre-polymer having a photosensitive ethylenic double bond; and (C) a photopolymerization initiator. The mixing ratio by weight of the alkali-soluble resin (A) to the pre-polymer (B) ranges from 1:4 to 4:1. A process for preparing the durable protection coating contains applying the resin composition on a substrate, and exposing the resin composition to ultraviolet ray through a circuit pattern mask to cure the resin composition followed by development and after-curing to form the protection coating.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: March 17, 1992
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Hitoshi Yuasa, Eiji Yoda, Haruyoshi Sato, Yutaka Otsuki
  • Patent number: 4730010
    Abstract: A cationic water-dispersible resin having quarternary ammonium groups is produced by reacting an acid-addition salt of a polymeric tertiary amine derived from a partially epoxidized polybutadiene-based polymer with an aliphatic secondary amine. The cationic water-dispersible resin is useful for preparing pigment paste and coating compositions to be used in cathodic electrodeposition coating systems.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: March 8, 1988
    Assignees: Nippon Paint Co., Ltd., Nippon Oil Company, Ltd.
    Inventors: Yasuyuki Tsuchiya, Koji Ito, Koichi Hagihara, Hiroyuki Sakamoto, Yutaka Otsuki
  • Patent number: 4642325
    Abstract: A cathode-depositing electrodeposition coating composition having excellent low-temperature curability comprising as essential ingredients(A) 100 parts by weight of a reaction product of (1) a high molecular compound having a molecular weight of 500 to 5,000 and containing carbon-carbon double bonds with an iodine number of 50 to 500 and 3 to 12% by weight of oxirane oxygen, and (2) 30 to 300 millimoles, per 100 g of the high molecular compound (1), of a specified amine compound,(B) 10 to 200 parts by weight of a reaction product of a specified diglycidyl compound with 1.9 to 2.1 moles, per molecule of the diglycidyl compound, of an alpha, beta-unsaturated carboxylic acid or an unsaturated fatty acid having a molecular weight of 100 to 350 and containing at least 10% by weight of a carbon-carbon double bond, or a mixture of both,(C) 0.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: February 10, 1987
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Yutaka Otsuki, Hiroyoshi Omika, Akio Oshima, Yoshihiko Araki, Yasuyuki Tsuchiya
  • Patent number: 4579886
    Abstract: A cathode-depositing electrodeposition coating composition comprising an aqueous solution or dispersion containing(A) a reaction product of (1) epoxidized diene polymer, (2) an amine and optionally, (3) polymerizable unsaturated aliphatic acid;(B) a reaction product of bisphenol epoxy resin and a polymerizable aliphatic acid;(C) a blocked polyisocyanate compound; and(D) manganese dioxide or an organic salt of manganese, cobalt or copper.The composition gives a coating film having excellent properties when electrodepositing and baking at a relatively low baking temperature.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: April 1, 1986
    Assignees: Nippon Oil Company, Ltd., Nippon Paint Co., Ltd.
    Inventors: Yutaka Otsuki, Hiroyoshi Omika, Akio Oshima, Yoshihiko Araki, Yasuyuki Tsuchiya
  • Patent number: 4563501
    Abstract: A cathode-precipitating electrodeposition coating composition consisting essentially of (A) 100 parts of a high-molecular-weight compound having a molecular weight of 500 to 10,000 and containing an amino group and a carbon-carbon double bond, (B) 3 to 200 parts by weight of a reaction product obtained by reacting an unsaturated carboxylic acid having 3 or 4 carbon atoms with the terminal glycidyl group of a glycidyl compound obtained by reacting a bisphenol with epichlorohydrin, and (C) 0.2 to 20 parts by weight of an oil-soluble manganese salt of a monoester of a 1,2-dicarboxylic acid or a manganese salt of sulfonated or maleinized polybutadiene having a molecular weight of 300 to 3,000.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: January 7, 1986
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Yutaka Otsuki, Yoshihiko Araki, Hiroyoshi Omika, Hajime Hara, Kazuho Aoyama
  • Patent number: 4543406
    Abstract: A cathode-precipitating electrodeposition coating having excellent low-temperature curability, said composition consisting essentially of(A) 100 parts by weight of a high molecular compound having a molecular weight of 500 to 10,000 and containing carbon-carbon double bonds with an iodine value of 50 to 500 and 30 to 300 millimoles of amino groups per 100 g,(B) 10 to 200 parts by weight of a product of reaction of a diglycidyl compound represented by the general formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: September 24, 1985
    Assignees: Nippon Paint Co., Ltd., Nippon Oil Company, Ltd.
    Inventors: Yutaka Otsuki, Hiroyoshi Omika, Akio Oshima, Yoshihiko Araki, Yasuyuki Tsuchiya
  • Patent number: 4423172
    Abstract: A self-curable coating composition for cathode-precipitating electrodeposition is disclosed which essentially comprises a water-dispersible resin having a carbon-carbon double bond and a tertiary amino group and an epoxy resin having a teritary amino group and an unsaturated group of the formula ##STR1## The two resins are neutralized by an acid to render the composition water-soluble or water-dispersible.
    Type: Grant
    Filed: March 30, 1982
    Date of Patent: December 27, 1983
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Yutaka Otsuki, Yoshihiko Araki, Hiroyoshi Omika, Hajime Hara, Kazuho Aoyama
  • Patent number: 4370453
    Abstract: A process for preparing a cathodic electrodepositable coating composition which comprises, in sequence,(i) epoxidizing a high-molecular-weight compound containing a carbon-carbon double bond and having a molecular weight of 500 to 10,000 and an iodine value of 100 to 500 to form an epoxidized high-molecular-weight compound containing 0.5 to 12% by weight of oxirane oxygen,(ii) reacting a part of the epoxy groups of the epoxidized high-molecular-weight compound with a basic amine compound of the general formula ##STR1## wherein R.sub.1 and R.sub.2, independently from each other, represent a hydrocarbon group having 1 to 10 carbon atoms which may be partly replaced by a hydroxyl group, and R.sub.1 and R.sub.2 together may form a cyclic structure,(iii) reacting a part or the whole of the remaining epoxy groups with an .alpha.,.beta.-unsaturated monocarboxylic acid of the general formula ##STR2## wherein R.sub.3 and R.sub.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: January 25, 1983
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Hiroyoshi Omika, Hajime Hara, Yutaka Otsuki, Yoshihiko Araki, Kazuho Aoyama
  • Patent number: 4283313
    Abstract: A coating composition for cathode-precipitating electrodeposition consisting essentially of(A) 100 parts by weight of an unsaturated organic compound having a molecular weight of 500 to 10,000 containing a carbon-carbon double bond in an amount corresponding to an iodine value of 100 to 500, said unsaturated organic compound having bonded thereto, through a carbon-carbon bond, basic groups of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and X are as defined in claim 1, the amount of said basic groups in said component (A) being 0.02 to 0.3 mole per 100 g of said component (A), and(B) 3 to 100 parts by weight of at least one compound represented by the general formula ##STR2## wherein R.sub.5, R.sub.6, n, m, Y and Y' are as defined in claim 1, said component (A) and said component (B) being neutralized with an organic acid or an inorganic acid and dissolved or dispersed in water.
    Type: Grant
    Filed: October 30, 1979
    Date of Patent: August 11, 1981
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Hiroyoshi Omika, Hajime Hara, Yutaka Otsuki, Yoshihiko Araki, Kazuho Aoyama
  • Patent number: 4265793
    Abstract: A coating composition for cathode-precipitating electrodeposition consisting essentially of (A) 100 parts by weight of an unsaturated organic compound having a molecular weight of 300 to 5,000 containing a carbon-carbon double bond in an amount corresponding to an iodine value of 100 to 500, said unsaturated organic compound having bonded thereto, through a carbon-carbon bond, basic groups of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and X are as defined in claim 1,the amount of said basic groups in said component (A) being 0.05 to 0.5 mole per 100 g of said component (A), and (B) 3 to 100 parts by weight of at least one compound represented by the general formula ##STR2## wherein R.sub.5, R.sub.6, n, m, Y and Y' are as defined in claim 1, said component (A) and said component (B) being neutralized with an organic acid or an inorganic acid and dissolved or dispersed in water.
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: May 5, 1981
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Hiroyoshi Omika, Hajime Hara, Yutaka Otsuki, Yoshihiko Araki, Kazuho Aoyama