Patents Assigned to Kureha Kagaku Kogyo Kabushiki Kaishi
  • Patent number: 5010206
    Abstract: An azole derivative represented by the formula ##STR1## wherein X and Y independently represent a halogen atom, a phenyl group or a hydrogen atom, providing that at least one of X and Y is not a hydrogen atom, n represents an integer of 0, 1 or 2, and A represents a nitrogen atom or CH, and an agricultural/horticultural fungicide comprising the azole derivative as an active ingredient are disclosed.The azole derivative exhibits an excellent effect in preventing and curing a wide spectrum of plant diseases and possesses low toxicity to mammals.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: April 23, 1991
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaishi
    Inventors: Hiroyuki Enari, Satoru Kumazawa, Susumu Shimizu, Atsushi Ito, Nobuo Sato, Toshihide Saishoji
  • Patent number: 4968345
    Abstract: Disclosed herein is a phenylhydrazone derivative of oxamide represented by the formula (I): ##STR1## wherein R.sup.1 is straight-chain alkyl group having 2 to 10 carbon atoms, branched alkyl group or cyclic alkyl group having 3 to 10 carbon atoms, alkyl group having 1 to 3 carbon atoms which is substituted with an alicyclic structure having 3 to 7 carbon atoms, phenyl group, halogen-substituted phenyl group, aralkyl group having 7 to 9 carbon atoms, alkenyl group having 3 to 6 carbon atoms, alkyl group having 2 to 4 carbon atoms which is substituted with alkoxy group having 1 to 4 carbon atoms, or alkyl group having 2 to 10 carbon atoms which is substituted with 1 to 19 fluorine atoms; and R.sup.2 is hydrogen, fluorine, chlorine, methyl group or methoxy group, and a herbicidal composition containing the derivative as active ingredient.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: November 6, 1990
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaishi
    Inventors: Takafumi Shida, Hideo Arabori, Takeo Watanabe, Yoichi Kanda, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 4961435
    Abstract: A high-frequency capacitive heating electrode device comprises a cap-shaped electrode, a flexible support for supporting the electrode with one end thereof capped with the electrode, a flexible polymer film which surrounds the electrode and forms a gastight space between the support and the flexible polymer film, and passages for respectively introducing and discharging a cooling medium to and from the gastight space. The high-frequency capacitive heating electrode device is disposed in the vicinity of the target portion of a living body to be heated and is useful for the hyperthermia therapy for a cancer of the uterine cervix.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: October 9, 1990
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaishi
    Inventors: Kiyoshi Kitagawa, Yoshio Hosoi, Akira Sogawa, Chikau Onodera, Tadashi Onuma
  • Patent number: 4920138
    Abstract: Disclosed herein are (1) a novel azole-substituted cycloalkanol derivative represented by the formula (I): ##STR1## wherein n is an integer of 1 or 2 and A represents a nitrogen atom or a CH group, (2) an agricultural and horticultural fungicide having said cycloalkanol derivative as an active ingredient, (3) a process for producing said cycloalkanol derivative and (4) several novel intermediate compounds to produce said cycloalkanol derivative.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: April 24, 1990
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaishi
    Inventors: Atsushi Ito, Satoru Kumazawa, Nobuo Sato, Toshihide Saishoji
  • Patent number: 4917923
    Abstract: A carbonaceous cylindrical body including a composite body of a carbonized material of a thin paper-like supporting body having a strength ratio of lengthwise direction to widthwise direction of 2 to 10 and obtained by manufacturing a paper-like body so that its carbonizable fibers are oriented and a carbonaceous matrix having an optically isotropic structure under a polarizing microscope and which shows a carbon content of at least 85% by weight, an oxygen gas permeation coefficient of 10.sup.-2 to 10.sup.-7 cm.sup.2 /sec. under a partial pressure of oxygen of 1 atmosphere and a bulk density of from 1.4 to 1.9 g/cm.sup.3. A process for producing the carbonaceous cylindrical body is also provided.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: April 17, 1990
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaishi
    Inventors: Akio Yoshida, Tsuneo Niinuma, Ikuo Seo
  • Patent number: 4795671
    Abstract: A para-phenylene sulfide block copolymer consisting essentially of a recurring unit (A) ##STR1## and a recurring unit (B) ##STR2## said recurring units (A) being present in the form of a block of 20 to 5,000 units of (A) on the average in the molecular chain, the mol fraction of the recurring units (A) being in the range of 0.50 to 0.98, the block copolymer having a melt viscosity (.eta.*) of 50 to 100,000 poise as determined at 310.degree. C. at a shear rate of 200 sec.sup.-1 and having: (a) a glass transition temperature (Tg) of 20.degree. to 80.degree. C., (b) a crystalline melting point (Tm) of 250.degree. to 285.degree. C.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: January 3, 1989
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaishi
    Inventors: Zenya Shiiki, Takayuki Katto, Yo Iizuka, Takao Iwasaki, Toshitaka Kouyama
  • Patent number: 4786630
    Abstract: Disclosed herein are (1) a solvent of a chromogenic dye-precursor material for pressure-sensitive recording paper, which solvent comprises a diarylalkanes containing not less than 80% by weight of a mixture of 1-tolyl-2-phenylpropane and 1,2-ditolylethane, obtained by coupling ethylbenzene and xylene by side-chain dehydrogenation, (2) the pressure-sensitive recording paper sheet prepared by using the solvent and (3) a process for producing the solvent.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: November 22, 1988
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaishi
    Inventors: Tadashi Nakamura, Takashi Terauchi, Shoichi Hoshi
  • Patent number: 4277573
    Abstract: A vinyl chloride resin composition comprises:(1) 100 parts of vinyl chloride polymer; and(2) 0.1 to 30 parts of a polymer processing aid comprising:(A) 40 to 90 parts of a copolymer comprising80 to 100% of an alkyl methacrylate, and0 to 20% of a monomer copolymerizable therewith; and(B) 60 to 10 parts of a copolymer comprising20 to 79% of an alkyl methacrylate,20 to 79% of an aromatic vinyl monomer,1 to 49% of diolefin, and0 to 20% of a monomer copolymerizable therewith,the copolymers (A) and (B) having been wet-blended to provide 100 parts of the polymer processing aid, all quantities expressed in parts and percentages being by weight.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: July 7, 1981
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaishi
    Inventors: Yo Iizuka, Susumu Midorikawa, deceased, Kiyoshi Midorikawa, heir, Yumi Midorikawa, heir