Patents Assigned to Toa Nenryo Kogyo Kabushiki Kaisha
  • Patent number: 5426051
    Abstract: A gene fragment coding for a major protein of A-type inclusion body in poxvirus; a DNA fragment comprising an expression control region related to the gene; a plasmid comprising the gene and the expression control region for the gene; and a process for production of the above-mentioned gene or plasmid comprising the steps of a) preparing a poxvirus, b) preparing a viral DNA from the poxvirus, c) constructing a genomic DNA library from the viral DNA, and d) selecting a vector containing the gene coding for the major protein of A-type inclusion body from the genomic DNA library.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: June 20, 1995
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hisatoshi Shida, Shinichi Funahashi
  • Patent number: 5217699
    Abstract: A calcium-phosphate type hydroxyapatite for chromatographic separation is in the form of spherulites having a mean particle diameter of 0.5 to 50 .mu.m, preferably 1 to 10 .mu.m. The spherulites are each an aggregate mainly of acicular crystallites belonging to a series of hexagonal systems and having unit lattice constants of 9.58.+-.0.08 .ANG. for the a axis and 7.00.+-.0.05 .ANG. for the c axis. The hydroxyapatite is produced by granulating a calcium=phosphate type hydroxyapatite in the form of a gel and then firing the granular apatite at 400.degree. to 700.degree. C., preferably at 500.degree. to 600.degree. C. The firing is performed by heating the granules in the presence of oxygen or air for a given period of time.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: June 8, 1993
    Assignees: Toa Nenryo Kogyo Kabushiki Kaisha, Ashaikogaku Kogyo Kabushiki Kaisha
    Inventors: Nobuaki Tagaya, Hideyuki Kuwakara, Takao Hashimoto, Noriko Komatsu, Keiko Fukamachi, Tsugio Maeshima, Toshihiro Ishikawa, Tetsuro Ogawa
  • Patent number: 5166104
    Abstract: Novel polysiloxazanes comprising [SiH.sub.2).sub.n NH-- and [SiH.sub.2).sub.m O-- as the main repeating units are provided. The polysiloxazanes are produced by reacting a dihalosilane or an adduct thereof with a Lewis base, with ammonia and water vapor or oxygen. From the polysiloxazane, novel silicon oxynitride shapes can be produced and the silicon oxynitride shapes are essentially composed of silicon, nitride (5 mol % or more) and oxygen (5 mol % or more).
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: November 24, 1992
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Osamu Funayama, Mikiro Arai, Hayato Nishii, Takeshi Isoda
  • Patent number: 5151390
    Abstract: Inorganic fibers having a high strength and a high modulus of elasticity at a high temperature are provided. The inorganic fibers are amorphous inorganic silicon nitirde-based fibers composed of silicon and nitrogen, optionally with oxygen, carbon and hydrogen, and having atomic ratio between above respective elements of N/Si=0.3 to 3, O/Si=up to 15, C/Si=up to 7 and H/Si=up to 15, wherein ratios of X-ray scattering intensity thereof to that of air at 1.degree. and 0.5.degree. are from 1 to 20 respectively and the silicon nitride-based fiber is still amorphous after heating in an inactive atmosphere at 1200.degree. C. for 1 hour. Composites of a metal, a ceramics, and a high molecular weight organic compound reinforced with the above fibers are also provided.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: September 29, 1992
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Aoki, Tadashi Suzuki, Toshio Katahata, Mutsuo Haino, Genshiro Nishimura, Hiroshi Kaya, Kozaburo Tamura, Takeshi Isoda
  • Patent number: 5145812
    Abstract: A molded body formed of a silicon nitride-based ceramic containing Si and N and optionally O, C and/or a metal. The ceramic is formed from a polysilazane. A molded body may be a composite body which is composed of a matrix of the ceramic and a reinforcing material such as powder or fiber embedded within the matrix or which is composed of ceramic powder bound with a binder formed of the silicon nitride-based ceramic.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: September 8, 1992
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Mikiro Arai, Osamu Funayama, Hayato Nishii, Tamio Ishiyama, Hiroshi Kaya, Takeshi Isoda, Kouichi Yasuda, Atsuro Takazawa, Tadashi Suzuki, Ichiro Kohshi, Masaaki Ichiyama, Tomohiro Kato
  • Patent number: 5145728
    Abstract: An oriented polyethylene film with an excellent moistureproofness and optical property is provided in which the degree of crosslinking is uniform or decreases inwardly across the thickness of the film, and which consists of a composition comprising (A) 50 to 90% by weight of polyethylene with a density of at least 0.935 g/cm.sup.3 and a high load melt index to melt index ratio of at most 100 and (B) 50 to 10% by weight of a petroleum resin or linear low density polyethylene.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: September 8, 1992
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yasushi Itaba, Yutaka Yoshifuji, Takayoshi Kondo, Keichiro Saitoh, Tadao Yoshino, Minoru Izawa, Ichiro Sakamoto
  • Patent number: 5127822
    Abstract: Provided is an atomizer-equipped combustion apparatus including an atomizing device for atomizing a fuel, a spray chamber for mixing the fuel atomized by the atomizing device with air to form a mixture, and for moving the mixture downwardly toward an opening at a distal end portion of the spray chamber, and a wind box provided so as to surround a lower portion of the spray chamber for forming a combustion space between itself and the spray chamber, the wind box being provided with a plurality of air supply holes facing a lower portion of the spray chamber. A mixture of external air and a fine spray of fuel produced by the atomizer can be ignited instantaneously by means of a comparatively simple structure, odors produced at igition and extinguishment can be greatly suppressed and a high turn-down ratio can be obtained.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: July 7, 1992
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Kouji Nakayama, Kiyoe Ishikawa, Hirokazu Takenaka, Hitoshi Kurokawa
  • Patent number: 5122417
    Abstract: This invention relates to fiber-reinforced composite resin pultrusion products of circular and noncircular cross-sectional contours, manufactured by impregnating fiber tows or rovings with a resin, drawing them into a die, and forming them into an article of predetermined size and shape, and then curing it, and relates also to a method for manufacturing the same.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: June 16, 1992
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Shinkichi Murakami, Keijiro Manabe, Makiji Miyao, Mamoru Enomoto, Yuji Ishida, Hiroshi Inoue
  • Patent number: 5114697
    Abstract: A high strength, high modulus pitch-based carbon fiber has a crystalline structure in which the presence of the (112) cross-lattice line and the resolution of the diffraction band into the (100) and (101) diffraction lines, which indicate the three-dimensional order of the crystallite of the fiber, are not recognized, and in which the orientation angle (.phi.) of X-ray structural parameter is not greater than 12.degree. and the stack height (Lc) ranges between 80 and 180 .ANG.. The carbon fiber also has a single-fiber diameter of 5 to 12 .mu.m, tensile strength not lower than 3.0 GPa, tensile elastic modulus not smaller than 500 GPa and elongation not smaller than 0.5%.
    Type: Grant
    Filed: March 23, 1989
    Date of Patent: May 19, 1992
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Tsutomu Naito, Genshiro Nishimura, Kikuji Komine
  • Patent number: 5091474
    Abstract: A two component-type curing agent composition is disclosed which comprises a first curing agent which is capable of cross-linking an epoxy resin and which is at least one member selected from primary amines, phenolic compounds and acid anhydrides, and a second curing agent which is at least one compounds represented by the following general formula: ##STR1## wherein X is --CR.sub.1 R.sub.2 --, --CO--, --COO--, --SO.sub.2 --, --SO--, --S--, --O--, --NR.sub.1 --, --SiR.sub.1 R.sub.2 -- or --POR.sub.1 -- where R.sub.1 and R.sub.2 each stands for hydrogen, a lower alkyl or a phenyl; Y and Y' each stands for hydrogen, a lower alkyl or an electron attracting group; R is a lower alkyl; and m and n each is an integer of 1-4.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: February 25, 1992
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Shinkichi Murakami, Osamu Watanabe, Sadahisa Wada, Makoto Miyazaki, Hiroshi Inoue
  • Patent number: 5082566
    Abstract: A calcium-phosphate type hydroxyapatite for chromatographic separation is in the form of spherulites having a mean particle diameter of 0.5 to 50 .mu.m, preferably 1 to 10 .mu.m. The spherulites are each an aggregate mainly of acicular crystallites belonging to a series of hexagonal systems and having unit lattice constants of 9.58.+-.0.08 .ANG. for the a axis and 7.00.+-.0.05 .ANG. for the c axis. The hydroxyapatite is produced by granulating a calcium-phosphate type hydroxyapatite in the form of a gel and then firing the granular apatite at 400.degree. to 700.degree. C., preferably at 500.degree. to 600.degree. C. The firing is performed by heating the granules in the presence of oxygen or air for a given period of time.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: January 21, 1992
    Assignees: Toa Nenryo Kogyo Kabushiki Kaisha, Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Nobuaki Tagaya, Hideyuki Kuwahara, Takao Hashimoto, Noriko Komatsu, Keiko Fukamachi, Tsugio Maeshima, Toshihiro Ishikawa, Tetsuro Ogawa
  • Patent number: 5076403
    Abstract: A viscous damper wherein the viscosity of a fluid, such as an oil, is used to generate damping effect when the fluid is passed through a restricted orifice or slit. Electrodes are arranged to face each other across the orifice or slit so that an electric field is created in a direction which is transverse to the direction of the fluid flow in the orifice or slit. The voltage applied to the electrodes is controlled in accordance with a frequency of vibration of a vibrating member to be damped. The viscosity of the fluid is controlled by applying a voltage thereto, so that a desired damping effect is obtained within a wide range of the frequency of the vibrating body.
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: December 31, 1991
    Assignee: TOA Nenryo Kogyo Kabushiki Kaisha
    Inventor: Junichi Mitsui
  • Patent number: 5043204
    Abstract: An oriented polyethylene film with an excellent moistureproofness and optical property is provided in which the degree of crosslinking is uniform or decreases inwardly across the thickness of the film, and which consists of a composition comprising (A) 50 to 90% by weight of polyethylene with a density of at least 0.935 g/cm.sup.3 and a high load melt index to melt index ratio of at most 100 and (B) 50 to 10% by weight of a petroleum resin or linear low density polyethylene.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: August 27, 1991
    Assignee: TOA Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yasushi Itaba, Yutaka Yoshifuji, Takayoshi Kondo, Keichiro Saitoh, Tadao Yoshino, Minoru Izawa, Ichiro Sakamoto
  • Patent number: 5041252
    Abstract: A nonwoven fabric consisting of water-soluble resin fine fibers having a mean fiber diameter of at most 30 .mu.m and a basis weight of 5 to 500 g/m.sup.2 is produced by extruding an aqueous solution containing a water-soluble resin or a melt of a water-soluble resin plasticized with water through nozzles, stretching the extruded material to form fibers by a high speed gas flow, heating the fibers to evaporate the water in the fibers and then collecting the fibers.
    Type: Grant
    Filed: August 22, 1989
    Date of Patent: August 20, 1991
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Shigeo Fujii, Shoichi Mori, Jyoichi Tabuchi
  • Patent number: 5032551
    Abstract: Silicon nitride based ceramic fibers containing Si, N, O and at least one metal M in amounts providing the atomic ratios N/Si of 0.3 to 3, O/Si of 0.0001 to 15 and M/Si of 0.001 to 5 and exhibiting an X-ray small angle scattering such that the ratio of the intensity of the small angle scattering of the fibers to that of air is 1 to 20. The ceramic fibers are produced by spinning of a polymetallosilazane into fibers and calcining the spun fibers and are useful as reinforcing fibers for composite artices having a metal or resin matrix.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: July 16, 1991
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yuuji Tashiro, Osamu Funayama, Mikiro Arai, Hiroyuki Aoki, Takeshi Isoda, Hiroshihi Kaya, Tadashi Suzuki, Toshio Katahata, Mutsuo Haino, Genshiro Nishimura
  • Patent number: 5029677
    Abstract: A viscous damper wherein the viscosity of a fluid, such as an oil, is used to generate damping effect when the fluid is passed through a restricted orifice or slit. Electrodes are arranged to face each other across the orifice or slit so that an electric field is created in a direction which is transverse to the direction of the fluid flow in the orifice or slit. The voltage applied to the electrodes is controlled in accordance with a frequency of vibration of a vibrating member to be damped. The viscosity of the fluid is controlled by applying a voltage thereto, so that a desired damping effect is obtained within a wide range of the frequency of the vibrating body.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: July 9, 1991
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventor: Junichi Mitsui
  • Patent number: 5002928
    Abstract: A thin film of a superconductor comprising composite metal oxides is formed by atomizing and spraying a homogeneous solution or solutions containing as solutes one or more of metal compounds capable of forming the superconductor, with an ultrasonic wave sprayer, onto a hot substrate to form the thin film, and the ultrasonic wave sprayer for forming the thin film of the superconductor comprises an ultrasonic wave-generating vibrator, feedstock supplier, atomized solution-escaping inhibitor, substrate supporter and heater, the ultrasonic wave-generating vibrator being connected through an axis to a solution-atomizing nozzle.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: March 26, 1991
    Assignee: TOA Nenryo Kogyo Kabushiki Kaisha
    Inventors: Keitaro Fukui, Osamu Nakamura, Yasushi Okayama, Atsushi Tsunoda
  • Patent number: 5003058
    Abstract: A DNA coding for an entire or a part of an antigen protein of the rinderpest virus; a protein for the production of the DNA comprising the steps of preparing an mRNA from the rinderpest virus, preparing a cDNA library from the mRNA, selecting a cDNA coding for the target protein from the cDNA library, and cloning the selected cDNA in a cloning vector; and a protein for the production of the antigen protein of the rinderpest virus comprising the steps of transfecting a vector containing the DNA coding for the target protein into animal cells, culturing the animal cells to produce the antigen protein, and recovering the target protein from the cell culture.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: March 26, 1991
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Kazuya Yamanouchi, Yasuhiro Yoshikawa, Masanobu Sugimoto
  • Patent number: 4999409
    Abstract: 1,4-Addition polymers or copolymers of diolefins useful as a functional or active polymer is provided which comprises, in combination, the following recurring units (A) and (B): ##STR1## wherein n=4 to 6 and A/B mole ratio=0 to 98/100 to 2.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: March 12, 1991
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yoshiharu Doi, Kazuo Soga, Satoshi Ueki
  • Patent number: 4992374
    Abstract: An improved mutant vaccinia virus providing a pock and plaque size on RK13 cells that is approximately the same as those of the Lister original, having a proliferation potency on YTV cells that is approximately the same as that of the Lister original, and having a neurovirulence, assessed by a recovery of an intrabrain virus, that is lower than that of the Lister original; and a process for the production thereof.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: February 12, 1991
    Assignees: Toa Nenryo Kogyo Kabushiki Kaisha, Chiba Prefecture
    Inventors: Masanobu Sugimoto, Fukumi Nishimaki, Tadashi Maruyama, Keizaburo Miki, Michio Morita, Kazuyoshi Suzuki