Patents Assigned to Mitsui
  • Patent number: 4713245
    Abstract: Disclosed herein is a granule containing physiologically-active substance which comprises at least(A): a physiologically-active substance;(B): a substance which is stable under neutral condition but disintegrates or dissolves at a pH of 3 or less; and(C): at least one substance selected from the group consisting of straight-chain or branched, saturated or unsaturated monocarboxylic acids having at least 14 carbon atoms and salts thereof, animal fats having a melting point of 40.degree. C. or higher, vegetable fats having a melting point of 40.degree. C. or higher and waxes having a melting point of 40.degree. C. or higher, and which granule further has a protective film comprising at least said substances (B) and (C) on the surface thereof. The protective film has a thickness of preferably at most 20% of the granular diameter and is preferably at least composed of at least 10% by weight of the substance (B) and at most 90% by weight of the substance (C).
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: December 15, 1987
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Shinji Ando, Masami Ohtaguro, Takayoshi Masuda, Yoshimoto Watanabe
  • Patent number: 4710481
    Abstract: Ti or a high-Ti alloy is melted in a container composed of high-purity CaO materials on its inner sides. The materials are composed of not less than 99% by weight of CaO, not more than 0.1% by weight of SiO.sub.2, not more than 0.02% by weight of Fe.sub.2 O.sub.3, and not more than 0.5% by weight in total of other metal oxides under a non-oxidizing atmosphere.CaO refractories for use in the melting of Ti or a high-Ti alloy contains not less than 99% by weight of CaO, not more than 0.1% by weight of SiO.sub.2, 0.02% by weight of Fe.sub.2 O.sub.3, and not more than 0.5% by weight of other metal oxides.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: December 1, 1987
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Toru Degawa, Gen Okuyama, Akio Hashimoto, Seiju Uchida, Kouzou Fujiwara, Makoto Ebata, Takashi Satou, Tohei Ototani
  • Patent number: 4707425
    Abstract: An optical recording method which comprises providing a recording layer containing a recording susbstance that has an absorption maximum in the visible and near infrared wavelength region of 600 to 1,200 nm and loses or diminishes its power to absorb visible or near infrared radiation in the aforesaid wavelength region upon exposure to ultraviolet radiation, X-rays, an electron beam or an ion beam, and irradiating desired locations of the recording layer with ultraviolet radiation, X-rays, an electron beam or ion beam to form a pattern based on the presence or absence, or variation in strength, of the power to absorb visible or near infrared radiation in the aforesaid wavelength region so as to record information in the recording layer; a method for reading optically recorded information which comprises illuminating a pattern formed as described above with laser light having a wavelength in the aforesaid visible and near infrared region and detecting the presence or absence, or variation in intensity, of abso
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: November 17, 1987
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Katsuyoshi Sasagawa, Kunio Nishihara, Hiroshi Ozawa, Masao Imai
  • Patent number: 4706891
    Abstract: A high-concentration coal-water slurry of a coal concentration as high as 71 percent by weight at a viscosity of 2,000 cp (at 25.degree. C.) can be produced by first coarsely crushing a starting coal, further pulverizing 95 to 30 percent by weight of the coarsely crushed thus obtained, subjecting the finely pulverized coal thus obtained, together with the remainder of the coarsely crushed coal, to crushing in a wet-type crusher, and pulverizing and adjusting the coal particles to a particle size constitution of 20 to 30 percent by weight of 200-mesh size and larger and 80 percent by weight or less of 350-mesh size and smaller.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: November 17, 1987
    Assignees: Lion Corporation, Kao Corporation, Mitsui Engineering and Shipbuilding Company Limited, Electric Power Development Company Limited, Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Kazuhiko Nakaoji, Mitsugu Kamao, Hayami Itoh, Shuhei Tatsumi, Shoichi Takao
  • Patent number: 4705813
    Abstract: A process for producing porous films which comprises blending 100 parts by weight of a polyolefin resin with 50 to 500 parts by weight of barium sulfate preferably having an average particle diameter of 0.1 to 7 .mu.m, melting the resulting resin composition and forming it into a film, and then stretching the film at least uniaxially by a factor of 1.5 to 7.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: November 10, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Keiko Ito, Michiyasu Ito, Shoichi Tsuji, Hisatosi Suzuki, Shoichi Ito
  • Patent number: 4705812
    Abstract: A process for producing porous films which comprises melting a resin composition consisting essentially of (1) 100 parts by weight of a high-pressure-processed low-density polyethylene resin having a melt index of 0.5 to 7 and a density of 0.915 to 0.935, a linear low-density polyethylene resin having a melt index of 0.5 to 8.5 and a density of 0.915 to 0.935, or a mixture thereof and (2) 50 to 500 parts by weight of barium sulfate having an average particle diameter of 0.1 to 7 .mu.m; forming the molten resin composition into a film; and then stretching the film at least uniaxially by a factor of 1.5 to 7. As the linear low-density polyethylene resin, a copolymer of ethylene and hexene and/or octene is particularly preferred.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: November 10, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Keiko Ito, Michiyasu Ito, Shoichi Tsuji, Hisatosi Suzuki
  • Patent number: 4704997
    Abstract: A device for preventing abnormal flow of gas fuel from a gas fuel injector of a diesel engine. The device has a pipe for supplying a pressurized gas fuel, a fuel injector including a passage connected to the pipe and leading to fuel injection nozzle ports, and a fuel cut-off valve means adapted to close the gas fuel passage upon detection of a reduction of the fuel pressure in the fuel passage. Any abnormal supply of fuel due to stick of the fuel injector is prevented so as to avoid any risk of explosion which otherwise may be caused by the abnormal supply of the gas fuel.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: November 10, 1987
    Assignee: Mitsui Engineering and Shipbuilding Co. Ltd.
    Inventors: Yasuhisa Endo, Shuhei Mizuhara, Satoshi Murakami, Osamu Beppu, Saiji Toshioka
  • Patent number: 4705818
    Abstract: Disclosed herein is a polypropylene-base resin composition obtained by heating at a temperature of 170.degree. C.-280.degree. C. a mixture containing a crystalline ethylene-propylene block copolymer having a specific composition, an ethylene-propylene copolymer rubber having a specific composition and viscosity, an inorganic filler having a specific particle size, and an organic peroxide, all in specified amounts. The thus-obtained polypropylene-base resin composition has high molding fluidity and are inexpensive and their moldings have excellent low-temperature impact resistance and paintability along with high stiffness. They are thus suitable for use in the production of large moldings such as automobile bumpers, fenders and body sidemembers.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: November 10, 1987
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Yoichi Kawai, Masaru Abe, Akio Yoshihara, Shigeru Hayashi, Katsumi Sekiguchi
  • Patent number: 4704491
    Abstract: A liquid ethylene-alpha-olefin random copolymer, characterized in that(a) it has an ethylene unit content of 10 to 85 mole % and an alpha-olefin unit content of 15 to 90 mole %,(b) it has a low molecular weight,(c) it has a narrow molecular weight distribution,(d) the dispersion of the ethylene units and alpha-olefin units in the polymer chain is in the advanced state, and(e) the directions of bonding of the alpha-olefin units in the polymer chain are nearly the same.The copolymer is prepared by copolymerizing ethylene and an alpha-olefin having 3 to 20 carbon atoms in the presence of a catalyst comprising a compound of a transition metal of Group IVb of the periodic table and an aluminoxane. The copolymer is very useful as a synthetic lubricant oil.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: November 3, 1987
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Toshiyuki Tsutsui, Mamoru Kioka, Akinori Toyota, Norio Kashiwa
  • Patent number: 4704184
    Abstract: An apparatus in the form of a die assembly for building a laminated core comprising a plurality of core sheets laminated one above another. Each of the core sheets has a plurality of caulking projections formed therein in the equally spaced relation which serve to achieve caulking between the adjacent core sheets. Prior to punching operation the blanking die is turned by a predetermined angle which is determined by a combination of gear ratio of the gearing mechanism and that of the indexing mechanism. A sprocket on the blanking die is operatively connected to a sprocket on the output shaft of the gearing mechanism and a sprocket on the input shaft of the gearing mechanism is operatively connected to a sprocket on the output shaft of the indexing mechanism.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: November 3, 1987
    Assignee: Mitsui High-Tec, Inc.
    Inventor: Takamitsu Oboshi
  • Patent number: 4704187
    Abstract: In a lead frame for a semiconductor device, inner leads are formed by etching and outer leads are formed by pressing.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: November 3, 1987
    Assignee: Mitsui High-Tec Inc.
    Inventor: Katsufusa Fujita
  • Patent number: 4702910
    Abstract: PSC-A is a new serological common antigen to Pseudomonas aeruginosa having very low toxicity, and highly effective for protecting infection by any of the serotypes of Pseudomonas aeruginosa. PSC-A can be used as the active component in a pharmaceutical agent for protecting Pseudonomas aeruginosa infection.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: October 27, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tamotsu Fukuda, Shiro Shigeta, Hiroaki Okuya, Yasuyuki Kuroiwa, Tadashi Sudo
  • Patent number: 4701283
    Abstract: Disclosed is a novel process for preparing amidoalkanesulfonic acids of the general formula ##STR1## or derivatives thereof by reacting a nitrile compound (1) with a .beta.-hydroxyalkanesulfonic acid or a derivative thereof (2) in concentrated sulfuric acid.Among the compounds of the general formula (3) and derivatives thereof, unsaturated amido- and phenyl-substituted alkanesulfonic acids and derivatives thereof (in particular, 2-acrylamido-2-phenylpropane-sulfonic acid and derivatives thereof) represented by the general formula ##STR2## can be copolymerized with other monomers and the like to provide useful materials such as copolymer-coated solid materials, copolymer emulsions, pigment dispersants and the like.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: October 20, 1987
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Hiroshi Itoh, Atsuhiko Nitta, Hideo Kamio
  • Patent number: 4701567
    Abstract: A novel process for producing 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane of the formula (1) ##STR1## which comprises heat-treating 2,2-bis(4-hydroxyphenyl)propane in the presence of a superacid-type resin or a perfluoroalkanesulfonic acid.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: October 20, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Yoshimitsu Tanabe, Keizaburo Yamaguchi, Yukihiro Yoshikawa, Kenichi Sugimoto, Akihiro Yamaguchi
  • Patent number: 4701508
    Abstract: A solvent soluble fluorine-containing polymer according to the present invention is a copolymer characterized by(i) consisting substantially of(a) fluoroolefin,(b) vinyl ether, and(c) an organosilicon compound having an olefinically unsaturated bond and a hydrohyzable group,(ii) said copolymer comprising, based on the total mole number of said (a)-(c) in the copolymer, 30-70 mol % of (a), 20-60 mol % of (b) and 1-25 mol % of (c) and(iii) said copolymer having a number average molecular weight (Mn) of 3000-200000 as measured by gel permeation chromatography.Further, according to the present invention, a coating composition having excellent weathering resistance and solvent resistance comprising the above-memtioned solvent soluble fluorine-containing polymer and organic solvent is also provided. In addition a coating process of said coating composition is also provided.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: October 20, 1987
    Assignee: Mitsui Sekiyu Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shirou Homma, Takashi Izumi, Sakae Murakami
  • Patent number: 4699733
    Abstract: A porous film having a good water vapor permeability is obtained with a high productivity by melting a resin composition comprising 100 parts by weight of a polyolefin resin and 50 to 500 parts by weight of barium sulfate having an electric conductivity of 250 .mu.S/cm or less in terms of the electric conductivity of a supernatant formed when the barium sulfate is added to water, and a particle size of 0.1 to 7 .mu.m, making the melt into a film and stretching the film to 2.5 to 14 times the original area at least in the uniaxial direction.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: October 13, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Shuji Matsumura, Michiyasu Ito, Syoichi Tsuji, Hisatosi Suzuki, Syoichi Ito
  • Patent number: 4699976
    Abstract: Disclosed is a continuous treating process of a rubber modified styrenic polymer composition produced by bulk or solution polymerization and containing at least 1% by weight of a rubber component and at least 16% by weight of the total amount of an unreacted monomer and solvent which process comprises treating the polymer composition in two-step volatile component separation apparatuses, each of which comprises a multi-tube preheater and a volatilizer, to remove the unreacted monomer and other volatile components wherein the first treated composition contains 3-15% by weight of the unreacted monomer and solvent.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: October 13, 1987
    Assignees: Mitsui Toatsu Chemicals, Inc., Toyo Engineering Corporation
    Inventors: Tetsuyuki Matsubara, Norifumi Ito, Mune Iwamoto, Toshihiko Ando
  • Patent number: 4695427
    Abstract: A lanthanide-containing alloy is produced by retaining the melt of this alloy by the use of a container having the inner surface formed of a calcia-based refractory possessing a CaO content of not less than 90% by weight in a non-oxidizing atmosphere.
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: September 22, 1987
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Toru Degawa, Kozo Fujiwara, Akio Hashimoto, Seiju Uchida, Gen Okuyama, Susumu Matsui
  • Patent number: 4695326
    Abstract: The sweetner prepared by adding palatinose to sucrose is a low-cariogenic since palatinose is not only low cariogenic in itself, but also inhibits the formation of insoluble glucan from sucrose in an oral cavity.Since the sweetner is almost same as sucrose in quality of sweetness, dissolvability in a mouth, palatability, etc., and further is low-cariogenic when it is used in foods, it is suitable as sweetner. In addition, since the sweetner is usually crystalline or powdery, it is easy to handle.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: September 22, 1987
    Assignee: Mitsui Sugar Co., Ltd.
    Inventors: Ichiro Takazoe, Kosei Ohta, Junichi Shimizu, Kazumasa Suzuki, Tatsuya Iwakura, Yoshikazu Nakajima
  • Patent number: 4694110
    Abstract: A process for producing m-phenoxybenzyl alcohol which comprises reacting chlorobenzene with m-hydroxybenzyl alcohol in the presence of a copper compound as a catalyst and a base, characterized in that chlorobenzene is added to a polar solvent having a higher boiling point than chlorobenzene, the amount of chlorobenzene being 0.05 to 4.0 times the weight of the polar solvent; at least one compound selected from alkali hydroxides, alkali carbonates and alkali bicarbonates is used as the base in an amount of 1.0 to 2.0 gram-equivalents per mole of m-hydroxybenzyl alcohol; and the reaction is carried out at a temperature of 140.degree. to 200.degree. C. while removing the generated water as an azeotrope with chlorobenzene.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: September 15, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Shinji Takenaka, Ryu Oi