Patents by Inventor Masahiro Saruta
Masahiro Saruta 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: 6035526Abstract: An apparatus for repairing a defect recognizes a defective portion of a color filter using an image processing mechanism, applies ink to the recognized defective portion of the color filter using a needle for applying ink of an ink application mechanism, hardens the applied ink using an ink hardening mechanism, and removes an unnecessary portion of the applied ink by irradiating laser beam from a laser irradiation mechanism.Type: GrantFiled: November 18, 1997Date of Patent: March 14, 2000Assignee: NTN CorporationInventors: Masahiro Saruta, Akihiro Yamanaka, Hiroshi Deguchi, Takayoshi Ozaki, Kazunari Maeda
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Patent number: 5179139Abstract: An epoxy resin composition used as a matrix for a fiber-reinforced composite is disclosed, which comprises the following components:(A) a bifunctional epoxy resin;(B) at least one of a trifunctional epoxy resin and a tetrafunctional epoxy resin;(C) a dihydroxybiphenyl compound represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; and(D) an aromatic amine,wherein said components (A), (B), (C) and (D) are used in amounts satisfying the following conditions:1/0.1.gtoreq.a/b.gtoreq.1/1.210/1.gtoreq.(a+b)/c.gtoreq.1/11/0.8.gtoreq.(a+b-c)/d.gtoreq.1/1.5wherein a represents the molar number of epoxy groups in component (A), b represents the molar number of epoxy groups in component (B), c represents the molar number of phenolic OH groups in component (C) and d represents the molar number of NH groups in component (D).Type: GrantFiled: September 13, 1991Date of Patent: January 12, 1993Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Masahiro Sugimori, Hisashi Tada, Kazuya Goto, Masahiro Saruta
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Patent number: 5171963Abstract: A laser processing device includes a Z stage movable in the up and down directions with respect to a XY stage movable in the X, Y directions on which an object to be processed is provided. The surface of the object to be processed is image-sensed by a CCD camera through a lens of an electrically-driven revolver attached to the Z stage, which is projected in a monitor. When a defect of the object is displayed in the monitor, a laser beam is radiated to a defective portion of the object from a laser head provided in the Z stage and the defective portion is removed.Type: GrantFiled: May 16, 1991Date of Patent: December 15, 1992Assignee: NTN CorporationInventors: Masahiro Saruta, Tetsuji Sagisaka, Kazunari Maeda, Takumi Yashiki
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Patent number: 5151482Abstract: A monomer comprising methyl methacrylate either alone or in combination with another acrylic or methacrylic ester monomer is partially polymerized to prepare a syrup, to which an initiator including a peroxide having a 10-hour half-life temperature of 50.degree. to 58.degree. C. and 2,2'-azobisisobutyronitrile are added. The resulting syrup, after being poured into a mold, is initially polymerized in a first step at a temperature of 75.degree. to 90.degree. C. for a period of 5 to 15 minutes, then further polymerized in a second step at a temperature 3.degree. to 12.degree. C. lower than the temperature of the first step polymerization until a conversion of monomer to polymer of 80 to 95% is attained. The polymerization product which is now in the form of a sheet is then heat-treated at a temperature of 95.degree. to 140.degree. C. to obtain a methacrylic resin sheet.Type: GrantFiled: August 12, 1991Date of Patent: September 29, 1992Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroyuki Ikeda, Michitoshi Shinka, Suehiro Tayama, Tetuya Sawano, Masahiro Saruta
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Patent number: 5053475Abstract: An epoxy resin composition characterized by comprising, as essential components,(A) a bifunctional epoxy resin,(B) a trifunctional epoxy resin,(C) a phenol compound represented by the following formula ##STR1## (X.sub.1 to X.sub.8 each represent Br, Cl or H and at least four of X.sub.1 to X.sub.8 each represent Br or Cl; R.sub.1 and R.sub.2 each represent H or CH.sub.3), and(D) 4,4'-diaminodiphenyl sulfone or 3,3'-diaminodiphenyl sulfone.Type: GrantFiled: June 22, 1990Date of Patent: October 1, 1991Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hisashi Tada, Akira Agata, Masahiro Saruta, Takashi Murata, Takatoshi Kubo
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Patent number: 4959438Abstract: An epoxy resin composition is disclosed, which comprises the following elements:(A) a bifunctional epoxy resin;(B) a trifunctional epoxy resin;(C) a phenolic compound represented by the following general formula: ##STR1## wherein X.sub.1, X.sub.2, X.sub.3, X.sub.4, X.sub.5, X.sub.6, X.sub.7, X.sub.8, X.sub.9, X.sub.10, X.sub.11, X.sub.12, R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom or a methyl group; and(D) 4,4'-diaminodiphenyl sulfone or 3,3'-diaminodiphenyl sulfone, wherein the molar ratio of epoxy groups in element (A) to those in element (B) is in the range of from 1/4.0 to 1/0.1, element (C) is used in an amount that satisfies the condition:1/0.9.ltoreq.(A+B)/C.ltoreq.1/0.1and element (D) is used in an amount that satisfies the condition:1/1.3.ltoreq.(A+B-C)/D.ltoreq.1/0.Type: GrantFiled: January 27, 1989Date of Patent: September 25, 1990Assignee: Mitsubishi Rayon Company, Ltd.Inventors: Hisashi Tada, Akira Agata, Masahiro Saruta, Takashi Murata
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Patent number: 4832932Abstract: Oxidizing treatment of carbon fibers under specific conditions provides carbon fibers having oxygen concentration (O.sub.1S /C.sub.1S atom number ratio) in the surface part of the carbon fibers of 0.05 to 0.30 as measured by X-ray photoelectron spectroscopy, coefficients of water-extractable fraction of up to 2.0, and coefficients of tow spread of at least 1.times.10.sup.-3. These carbon fibers are excellent in adhesion to various matrix resins and when mixed as reinforcements with matrix resins, provide composite materials superior especially in impact resistance. The thus obtained composite materials are useful for aircraft, automobiles, and general industrial materials.Type: GrantFiled: August 7, 1987Date of Patent: May 23, 1989Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hisashi Tada, Masahiro Saruta, Takashi Murata, Akira Agata, Setuo Kashiyama
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Patent number: 4568719Abstract: A resin composition comprising (I) at least one compound selected from the group consisting of hydroxyl-containing unsaturated polyesters, reaction products of polyepoxides and ethylenically unsaturated carboxylic acids and .beta.-polymers of diallyl phthalate (II) at least one monomer copolymerizable with said compound (I), which is selected from the group consisting of ethylenically unsaturated monomers and allylic unsaturated monomers, (III) a catalyst capable of polymerizing (I) and (II), (IV) at least one compound containing the oxirane ring, (V) a curing agent (excluding acid anhydrides, acids and amine compounds) capable of curing said compound (IV), and (VI) a catalyst capable of promoting the curing of (IV) by (V). A preferable composition further contains (VII) a polyisocyanate compound and (VIII) a promoter for the reaction between isocyanate group and hydroxyl group. The composition may contain fibrous reinforcing agents.Type: GrantFiled: May 30, 1984Date of Patent: February 4, 1986Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hisashi Tada, Masahiro Saruta, Hideki Moriishi
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Patent number: 4370966Abstract: A fuel feed system adapted to maintain at a constant value the pressure difference across a fuel measuring gate disposed in a fuel feed passage and control the area of opening of the fuel measuring gate in connection with the amount of air being sucked into an internal combustion engine so as to continuously measure the fuel, the measured fuel being concentratedly injected at a positive pressure into the suction pipe. The system comprises an accelerator pump interlocked to a throttle valve for injecting fuel at a positive pressure into the suction pipe during acceleration. The accelerator pump is fed with fuel sucked up from the return pipe of a pressure regulator which feeds the fuel measuring gate with fuel at a predetermined pressure.Type: GrantFiled: March 26, 1979Date of Patent: February 1, 1983Assignee: NTN Toyo Bearing Co., Ltd.Inventors: Masahiro Saruta, Hiroki Uchiyama
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Patent number: 4297981Abstract: A fuel flow rate measuring device comprising a control rod axially movable in proportion to the rate of flow of air flowing through a suction pipe, a ball disposed in a taper bore and adapted to be moved in the taper bore by the control rod, the taper bore and the ball cooperating with each other to define a clearance which is variable in proportion to the rate of flow of the air, and a pressure regulator provided between a fluid inlet and outlet for keeping constant the fluid pressure difference across the clearance defined by the taper bore and ball.Type: GrantFiled: August 17, 1979Date of Patent: November 3, 1981Assignee: NTN Toyo Bearing Company, LimitedInventors: Kei Kimata, Yoshinobu Yasuda, Isamu Yoshida, Masahiro Saruta
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Patent number: 4184505Abstract: A fuel flow rate measuring device comprising a control rod axially movable in proportion to the rate of flow of air flowing through a suction pipe, a ball disposed in a taper bore and adapted to be moved in the taper bore by the control rod, the taper bore and the ball cooperating with each other to define a clearance which is variable in proportion to the rate of flow of the air, and a pressure regulator provided between a fluid inlet and outlet for keeping constant the fluid pressure difference across the clearance defined by the taper bore and ball.Type: GrantFiled: April 5, 1978Date of Patent: January 22, 1980Assignee: NTN Toyo Bearing Co., Ltd.Inventors: Kei Kimata, Yoshinobu Yasuda, Isamu Yoshida, Masahiro Saruta