Patents Assigned to Hitachi Chemical Co.
  • Patent number: 8653200
    Abstract: The invention provides an optical resin composition being transparent, having suitable adhesion and necessary impact absorption for protection of an image display device etc., not affecting constituent materials of a image display panel, and being excellent in reliability, and an optical resin material using the same. Disclosed is an optical resin composition containing (A) a first acrylate derivative that is a compound having one polymerizable unsaturated bond in its molecule, (B) a second acrylate derivative that is a compound having two or more polymerizable unsaturated bonds in its molecule, and (C) an acrylate derivative polymer, and an optical resin material produced by curing reaction of the optical resin composition.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 18, 2014
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Tooru Takahashi, Yasuhisa Ishida, Hisashige Kanbara, Hidekazu Kondou
  • Patent number: 8644367
    Abstract: An antenna beam scan unit includes: a Rotman lens that performs power division and synthesis between plural antenna ports and three or more beam ports; plural antenna elements which are connected to the respective antenna ports and to or from which radio waves are inputted or outputted; plural amplifiers that are connected to the respective beam ports of the Rotman lens and perform amplitude modulation on a signal; input paths for a transmission signal disposed in association with the amplifiers; switches for switching the input paths; and a beam control unit. The input paths include first paths and second paths on which a signal that is out of phase with a signal on the first paths is produced. The beam control unit selects two adjoining beam ports, and can switch the first paths and second paths as the input paths for the two beam ports.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: February 4, 2014
    Assignee: Hitachi Chemical Co., Ltd
    Inventors: Hideyuki Nagaishi, Nobuhiko Shibagaki, Yuichi Shimayama
  • Patent number: 8632892
    Abstract: An object of the present invention is to provide an organic electronic material that can be easily formed into a multilayer structure. A further object of the present invention is to provide an organic electronic device and an organic EL device that exhibit a better emission efficiency and a better emission lifetime than heretofore achieved. In order to achieve these objects, an organic electronic material is provided, the material includes a polymer or oligomer that has at least one polymerizable substituent and a hole-transporting repeat unit.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: January 21, 2014
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Yousuke Hoshi, Shigeaki Funyuu, Yoshii Morishita
  • Patent number: 8617930
    Abstract: The invention provides an adhesive sheet which can be stuck to a wafer at low temperatures of 100° C. or below, which is soft to the extent that it can be handled at room temperature, and which can be cut simultaneously with a wafer under usual cutting conditions; a dicing tape integrated type adhesive sheet formed by lamination of the adhesive sheet and a dicing tape; and a method of producing a semiconductor device using them. In order to achieve this object, the invention is characterized by specifying the breaking strength, breaking elongation, and elastic modulus of the adhesive sheet in particular numerical ranges.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: December 31, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Teiichi Inada, Michio Mashino, Michio Uruno
  • Patent number: 8609541
    Abstract: Provided are a polishing slurry for metal films and a polishing method which restrain the generation of erosion and seams, and makes the flatness of a surface polished therewith or thereby high. The slurry and the method are a polishing slurry, for metal films, comprising abrasive grains, a methacrylic acid based polymer and water, and a polishing method using the slurry, respectively.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: December 17, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Takaaki Tanaka, Masato Fukasawa, Shigeru Nobe, Takafumi Sakurada, Takashi Shinoda
  • Patent number: 8592317
    Abstract: The polishing solution for CMP of the invention comprises abrasive grains, a first additive and water, wherein the first additive is at least 1,2-benzoisothiazole-3(2H)-one or 2-aminothiazole. The polishing method of the invention is a polishing method for a substrate having a silicon oxide film on the surface, and the polishing method comprises a step of polishing the silicon oxide film with a polishing pad while supplying the polishing solution for CMP between the silicon oxide film and the polishing pad.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: November 26, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Eiichi Satou, Shigeru Nobe, Munehiro Oota, Masayuki Hanano, Shigeru Yoshikawa
  • Patent number: 8591612
    Abstract: The present invention provides a cerium oxide slurry, a cerium oxide polishing slurry, and a method of polishing a substrate by using the same, wherein decrease of scratches and polish at high speed can be realized by reducing the content of coarse grains by improving in the disperse state of cerium oxide particles. The invention relates to a cerium oxide slurry containing cerium oxide particles, dispersant and water, in which the ratio of weight of cerium oxide/weight of dispersant is in a range of 20 to 80 and relates a cerium oxide polishing slurry comprising the cerium oxide slurry and additives such as a water-soluble polymer.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: November 26, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Kazuhiro Enomoto, Shigeru Yoshikawa
  • Patent number: 8574716
    Abstract: An ionic polymer composite device and methods for fabricating the ionic polymer composite device are provided. The ionic polymer composite device includes two extended electrode layers, each extended electrode layer including at least one ionic polymer with a plurality of electrically conductive particles, and a dielectric layer including at least one sulfonated poly ether sulfone polymer or a derivative between the two extended electrode layers.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: November 5, 2013
    Assignees: Hitachi Chemical Co., Ltd., Hitachi Chemical Research Center, Inc.
    Inventors: Yongxian Wu, Bun-ichiro Nakajima, Shinji Takeda, Iwao Fukuchi, Naoki Asano, Anthony H. Tsai
  • Publication number: 20130260558
    Abstract: Provided is a polishing liquid including cerium oxide particles, an organic acid A, a polymer compound B having a carboxyl acid group or a carboxylate group, and water, wherein the organic acid A has at least one group selected from the group consisting of —COOM group, -Ph-OM group, —SO3M group and —PO3M2 group, pKa of the organic acid A is less than 9, a content of the organic acid A is 0.001 to 1 mass % with respect to the total mass of the polishing liquid, and a content of the polymer compound B is 0.01 to 0.50 mass % with respect to the total mass of the polishing liquid, and pH is in the range of 4.0 to 7.0.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 3, 2013
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventors: Munehiro Oota, Takaaki Tanaka, Toshio Takizawa, Shigeru Yoshikawa, Takaaki Matsumoto, Takahiro Yoshikawa, Takashi Shinoda
  • Patent number: 8524921
    Abstract: The invention relates to a tetracarboxylic dianhydride represented by the following formula (1). [In formula (1) R1, R2, R3 and R4 each independently represent an alkyl group having from 1 to 5 carbon atoms, m represents a number from 1 to 30, all of the silicon atoms bonding to the norbornane rings are in an exo-configuration with respect to the norbornane rings, and all of the dicarboxylic anhydride groups bonding to the norbornane rings are in an exo-configuration with respect to the norbornane rings.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: September 3, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Tooru Kikuchi, Hayato Kotani, Katsuyuki Masuda, Toshihiko Takasaki
  • Publication number: 20130217229
    Abstract: The invention relates to a polishing liquid for metal film comprising 7.0% by weight or more of an oxidizer for metal, a water-soluble polymer, an oxidized metal dissolving agent, a metal anticorrosive agent and water, provided that the total amount of the polishing liquid for metal film is 100% by weight, wherein the water-soluble polymer has a weight average molecular weight of 150,000 or more and is at least one member selected from among a polycarboxylic acid, a salt of a polycarboxylic acid, and a polycarboxylic acid ester. According to the invention, provided is a polishing liquid for metal film, by which polishing can be performed at a high rate even under a polishing pressure as low as 1 psi or lower, and such that a polished film after polishing is excellent in planarity, furthermore, with which a high polishing rate can be obtained even in an initial stage of polishing, and provided is a polishing method using the polishing liquid.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 22, 2013
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventor: HITACHI CHEMICAL CO., LTD.
  • Patent number: 8501625
    Abstract: The invention relates to a polishing liquid for metal film comprising 7.0% by weight or more of an oxidizer for metal, a water-soluble polymer, an oxidized metal dissolving agent, a metal anticorrosive agent and water, provided that the total amount of the polishing liquid for metal film is 100% by weight, wherein the water-soluble polymer has a weight average molecular weight of 150,000 or more and is at least one member selected from among a polycarboxylic acid, a salt of a polycarboxylic acid, and a polycarboxylic acid ester. According to the invention, provided is a polishing liquid for metal film, by which polishing can be performed at a high rate even under a polishing pressure as low as 1 psi or lower, and such that a polished film after polishing is excellent in planarity, furthermore, with which a high polishing rate can be obtained even in an initial stage of polishing, and provided is a polishing method using the polishing liquid.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: August 6, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Kouji Haga, Masato Fukasawa, Jin Amanokura, Hiroshi Nakagawa
  • Patent number: 8501870
    Abstract: Provided is a thermosetting resin composition which can be used for the production of printed circuit boards, having good dielectric properties in high frequency bands so that transmission loss can be significantly lowered, having excellent heat resistance after moisture absorption and thermal expansion properties, and satisfying peeling strength between the resin composition and metal foil. The present invention relates to a thermosetting resin composition of a semi-IPN composite, comprising (A) a polyphenylene ether, and a prepolymer formed from (B) a chemically unmodified butadiene polymer containing 40% or more of a 1,2-butadiene unit having a 1 2,-vinyl group in a side chain of a molecule and (C) a crosslinking agent, in a compatibilized and uncured state; and a resin varnish, a prepreg and a metal clad laminated board using the same.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 6, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Yasuyuki Mizuno, Daisuke Fujimoto, Kazutoshi Danjobara, Hikari Murai
  • Patent number: 8486837
    Abstract: A polishing slurry for metal comprises an oxidizer, a metal oxide dissolving agent, a metal inhibitor, and water, wherein the metal inhibitor is at least one of a compound having an amino-triazole skeleton and a compound having an imidazole skeleton. The use of the polishing slurry for metal makes it possible to raise the polishing speed sufficiently while keeping the etching speed low, restrain the generation of corrosion of the surface of a metal and dishing, and form a metal-film-buried pattern having a high reliability in the process of formation of wiring of semiconductor devices.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: July 16, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Hiroshi Ono, Katsuyuki Masuda, Masanobu Habiro
  • Patent number: 8480970
    Abstract: The present invention relates to an analytical pretreatment device, comprising a supporting material 1, m inlet ports 3 as fluid injection ports, n outlet ports 4 as fluid outlet port, m×n hollow filament 5 communicating between the inlet ports and the outlet ports, and n filler cartridges 6 connected to the outlet ports (wherein, m is a natural number; and n is a natural number) that provides an analytical pretreatment device allowing easier automation of the analytical pretreatment step for improvement in operational accuracy and saving in labor.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: July 9, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Hiroshi Kawazoe, Kunihiko Akai, Kiyoshi Yasue
  • Patent number: 8481428
    Abstract: The present invention relates to polishing slurry and polishing method used for polishing in a process for forming wirings of a semiconductor device, and the like. There are provided polishing slurry giving a polished surface having high flatness even if the polished surface is made of two or more substances, and further, capable of suppressing metal residue and scratches after polishing, and a method of chemical mechanical polishing using this. The polishing slurry of the present invention is polishing slurry containing at least one of a surfactant and an organic solvent, and a metal oxide dissolving agent and water, or polishing slurry containing water and abrasive of which surface has been modified with an alkyl group, and preferably, it further contains a metal oxidizer, water-soluble polymer, and metal inhibitor.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: July 9, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Jin Amanokura, Takafumi Sakurada, Sou Anzai, Masato Fukasawa, Shouichi Sasaki
  • Patent number: 8480971
    Abstract: The present invention relates to an analytical pretreatment device, comprising a supporting material 1, m inlet ports 3 as fluid injection ports, n outlet ports 4 as fluid outlet port, m×n hollow filament 5 communicating between the inlet ports and the outlet ports, and n filler cartridges 6 connected to the outlet ports (wherein, m is a natural number; and n is a natural number) that provides an analytical pretreatment device allowing easier automation of the analytical pretreatment step for improvement in operational accuracy and saving in labor.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: July 9, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Hiroshi Kawazoe, Kunihiko Akai, Kiyoshi Yasue
  • Patent number: 8475742
    Abstract: The present invention relates to a serum or plasma separating material including a moisture curing component having a specific gravity of from 1.03 to 1.09, and a blood collection tube including the serum or plasma separating material. The present invention provides a serum or plasma separating material which is allowed to be present in a cured state between serum or plasma and a blood cell-containing component obtained after centrifugal separation when separating the serum or plasma component in a collection tube, exhibits a good storage stability capable of keeping the serum or the like and the cell-containing component in a separated state in the collection tube for a long period of time, is excellent in stability upon freezing or thawing and upon handling of a sample, and can be cured without need of irradiation with ultraviolet ray or the like, as well as a method of separating serum or plasma using the separating material.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: July 2, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Kunihiro Suto, Yasushi Kojima
  • Patent number: 8466229
    Abstract: The present invention provides a composition for forming a silica-based film, the composition containing (a) a siloxane resin; (b) an organic solvent including at least one species of aprotic solvent; and (c) an onium salt.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: June 18, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Haruaki Sakurai, Koichi Abe
  • Publication number: 20130125476
    Abstract: The present invention provides a cerium oxide slurry, a cerium oxide polishing slurry, and a method of polishing a substrate by using the same, wherein decrease of scratches and polish at high speed can be realized by reducing the content of coarse grains by improving in the disperse state of cerium oxide particles. The invention relates to a cerium oxide slurry containing cerium oxide particles, dispersant and water, in which the ratio of weight of cerium oxide/weight of dispersant is in a range of 20 to 80 and relates a cerium oxide polishing slurry comprising the cerium oxide slurry and additives such as a water-soluble polymer.
    Type: Application
    Filed: January 15, 2013
    Publication date: May 23, 2013
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventor: Hitachi Chemical Co., Ltd.