Patents Represented by Attorney Henry C. Nields
  • Patent number: 5067733
    Abstract: A mechanial seal having a split seal ring which is covered by a support ring over the outer face with a predetermined gap and is fastened in a circular shape by a O ring inserted in the predetermined gap. The split seal ring is easily assembled by a tool which includes a split ring body. The split ring body has a basic inner face contacting to a surface of a rotary shaft, an end face contacting to the end face of the split seal ring an a projection for inserting the O ring into the gap.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: November 26, 1991
    Assignee: Tanken Seiko Kabushiki Kaisha
    Inventors: Yataro Nagai, Mitsuyoshi Matsushita, Yuji Yamauchi
  • Patent number: 5062906
    Abstract: The present invention is to produce non-oriented electrical steel sheet by a hot direct rolling. The slab is directly sent to the hot rolling without the brief soaking, whereby others than AlN inevitably precipitated check the precipitation of AlN, a roughing and a finish rolling are performed at determined reduction rates, and a delay time is taken between the roughing and the finish rolling, and besides a finish rolling is performed at not more than Ar.sub.3 so that precipitating nuclei of AlN are effectively introduced into the steel, and uniform and coarse AlN precipitation is formed by a coiling at temperature of more than 700.degree. C., thereby to enable to provide uniform and satisfied ferrite grain growth at the recrystallization annealing.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: November 5, 1991
    Assignee: NKK Corporation
    Inventors: Akihiko Nishimoto, Yoshihiro Hosoya, Kunikazu Tomita, Toshiaki Urabe, Masaharu Jitsukawa
  • Patent number: 5058729
    Abstract: A continuous conveyor apparatus is provided, comprising tandem wheels and coaxial wheels appropriately positioned. Four endless link chains are turned around the wheels, and a plurality of carrying vessels having arms are connected to the four link chains through the arms. The coaxial wheels have a pair of inner wheels and a pair of outer wheels coaxially arranged. The tandem wheels have a pair of inner wheels and a pair of outer wheels horizontally arranged with a space therebetween. The apparatus is durable, lightweight and can be produced at low cost.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: October 22, 1991
    Inventor: Katsuaki Shibata
  • Patent number: 5051132
    Abstract: A lyophilized preparation comprising 6-(3-dimethylaminopropionyl)forskolin, a buffer agent having a pH value of about 3 to about 6 when dissolved, and, as an optional ingredient, a sugar. The lyophilized preparation is excellent in resolubility and stable in both pH and residual percentage.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: September 24, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Emiko Yamasaki, Takaaki Ohkuma
  • Patent number: 5050188
    Abstract: In the transmission of information, particularly long-distance speech signals, between a first and a second station, the information is transmitted from the first to the second station by means of a code alternating current of predetermined frequency and phase-state, and from the second station to the first station by means of a code alternating current which has the predetermined frequency and a phase shifted by 90.degree. with respect to the predetermined phase. The phase of the code alternating current transmitted from the second to the first station can be driven by means of the phase of the code alternating current transmitted from the first to the second station. The code alternating currents may contain code elements in the form of half waves or periods of differentiated amplitudes of the code alternating current, which is essentially sinusoidal. In order to use multiplication, two code-alternating-currents, whose phases are shifted by 90.degree.
    Type: Grant
    Filed: June 7, 1988
    Date of Patent: September 17, 1991
    Inventor: Josef Dirr
  • Patent number: 5049628
    Abstract: The present invention relates to an unsaturated group-containing polycarboxylic acid resin produced by reacting an epoxidized compound of a condensate of a phenolic compound and an aromatic aldehyde having a phenolic hydroxyl group with (meth)acrylic acid, and further reacting the reaction product with polybasic carboxylic acid or an anhydride thereof; a composition comprising the resin and a cured product of the resin or the composition.The composition according to the present invention is developable with an aqueous alkaline solution and suitable for a solder resist composition which is excellent in heat resistance, solvent resistance, adhesion, electric insulation property and storage stability.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: September 17, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Kazuyoshi Nawata, Tetsuo Ohkubo, Minoru Yokoshima
  • Patent number: 5044803
    Abstract: A tool for applying liquids has a nozzle portion which is provided with a spatulate section having a discharge orifice in the side thereof from which the liquid emerges. The spatulate section is mounted on a tool body which is freely rotatable, so that the liquid may be applied to the surface of a tubular object in a convenient manner.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: September 3, 1991
    Assignee: Three Bond Co., Ltd.
    Inventors: Yoshitaka Kurosawa, Minoru Imamura, Makoto Iwamura
  • Patent number: 5041672
    Abstract: A process for producing p-phenylenediamine or a derivative thereof which comprises reducing p-nitroaniline or a derivative thereof by hydrazine in the presence of an aromatic quinone compound or an aromatic dihydroxy compound.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: August 20, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventor: Tsukasa Ishikura
  • Patent number: 5041447
    Abstract: This invention relates to oxetanocin-related compounds represented by the following formula (I): ##STR1## [in formula (I), R.sub.1, Y and B have the following meanings: (a) R.sub.1 represents --CH.sub.2 OH or --CH.sub.2 OCO-(alkyl),(b) Y represents ##STR2## provided that R.sub.2 is --H, --OH or --CH.sub.2 OH and R.sub.3 is --H, --OH, halogen atom, --CH.sub.2 OH, lower alkyl group, --CH.sub.2 -N.sub.3, --CH.sub.2 -F, --N.sub.3, --COOH, --NH.sub.2, --CH.sub.2 OSO.sub.3 H or --CH.sub.2 OCO-(lower alkyl), and(c) B represents a residue of purine base,(d) provided that R.sub.1 and R.sub.3 cannot simultaneously represents --CH.sub.2 OH]and their salts which have activities such as an antiviral activity and the like and are expectedly useful as a pharmaceutical and the like.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: August 20, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Seiichi Saito, Shigeru Hasegawa, Katsutoshi Takahashi, Nobuyoshi Shimada, Jun-ichi Seki, Hiroo Hoshino, Yukihiro Nishiyama, Kenichi Matsubara, Takemitsu Nagahata
  • Patent number: 5032140
    Abstract: A reactive dye represented by the formula (I), ##STR1## wherein R represents --NH.sub.2 or --NHC.sub.2 H.sub.4 SO.sub.3 M, and M's independently represent Li.sup..sym., Na.sup..sym., K.sup..sym. or .sup..sym. NH(C.sub.2 H.sub.4 OH).sub.3, provided that at least one of M's represents Li.sup..sym. or .sup..sym. NH(C.sub.2 H.sub.4 OH).sub.3. This reactive dye easily gives a stable liquid composition and is useful to dye cellulosic or polyamide fibers.
    Type: Grant
    Filed: October 24, 1989
    Date of Patent: July 16, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Nobuyuki Yamanaka, Kazuo Hanawa, Eiichi Ogawa
  • Patent number: 5028598
    Abstract: Oxetanocin derivatives represented by formula: ##STR1## wherein X represents H or ##STR2## or a pharmacologically acceptable salt thereof exhibit an anti-viral activity. Anti-viral compositions comprising the oxetanocin derivatives or their pharmacologically acceptable salts as the effective ingredient are also provided.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: July 2, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Katsuhiko Kurabayashi, Junichi Seki, Haruo Machida, Hiroshi Yoshikawa, Hiroo Hoshino, Seiichi Saito, Masayuki Kitagawa
  • Patent number: 5017195
    Abstract: A non-dustable granular dye comprising dye particles in granular form coated with a coating agent selected from the group consisting of a water-soluble high-molecular weight substance, a monosaccharide and an oligosaccharide.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: May 21, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Fumitaka Satou, Fumio Ogawa
  • Patent number: 5013923
    Abstract: The invention comprises of four magnet system for dispersing and recombining precisely several isotopes for injection into a tandem accelerator. The precise horizontal focusing of the ions is achieved magnetically using curved boundaries of the magnets which have normal entrance and exit boundaries for the central trajectories. The precise vertical focusing is achieved mainly by the electric slot lenses in the first version, with small adjustments of the focusing of the isotopes, other than the central trajectory isotope, by curved boundaries of the magnet. It is the use of the electric slot lenses, or a similar electric device with one dimensional focusing, which in part decouples the focusing action in the vertical plane from the horizontal plane, that permits the use of four fold magnetic symmetry and boundary curvature to accomplish true recombination of the isotopes in a practical and compact device.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: May 7, 1991
    Assignee: University of Toronto Innovations Foundation
    Inventors: Albert E. Litherland, Linas R. Kilius
  • Patent number: 5009726
    Abstract: The present invention is to produce non-oriented silicon steel sheets having excellent magnetic properties in dependence upon a hot direct rolling, wherein the slab is directly sent to the direct rolling without maintaining the heat and soaking, whereby others than AlN precipitated during hot rolling check the precipitation of AlN, and a delay time is taken between the roughing and the finish rolling so that precipitating nuclei of AlN are introduced into the steel, and uniform and coarse AlN precipitation is formed by a subsequent annealing treatment, thereby to enable to provide uniform and satisfied ferrite grain growth at the recrystallization annealing.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: April 23, 1991
    Assignee: NKK Corporation
    Inventors: Akihiko Nishimoto, Yoshihiro Hosoya, Kunikazu Tomita, Toshiaki Urabe, Masaharu Jitsukawa
  • Patent number: 5006181
    Abstract: The present invention relates to a lubricating method for warm rolling of high Si steel, where warm rolling is carried out on the high Si steel at temperatures between 200.degree. and 600.degree. C., while a lubricant is sprayed to working rolls or assistant rolls, the lubricant having been produced by mixing a solid lubricant endurable to rolling temperatures into a heat resistant grease.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: April 9, 1991
    Assignee: Nippon Kokan Kabushiki Kaisha
    Inventors: Sadakazu Masuda, Fumio Fujita, Tadayoshi Murakami, Masahiko Yoshino, Ryuichi Yagi, Masamoto Kamata
  • Patent number: 5003056
    Abstract: This invention relates to an antibiotic NK86-0279 of the formula: ##STR1## which exhibits antifungal, antitumor, vascularizations-inhibitory and insecticidal activities.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: March 26, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Takaaki Nishikiori, Masanori Yamazaki, Seiichi Saito, Nobuyoshi Shimada, Takashi Kurokawa, Kiyonobu Hirose, Takumi Yamshita, Takako Tsuchiya, Takashi Harada
  • Patent number: 5002756
    Abstract: An agent for relieving radiogenic or drug-induced side effects, characterized by comprising a spergualin derivative of the following formula (I):NH.sub.2 --C(.dbd.NH)--NH--R.sub.1 --R.sub.2 --CONH--R.sub.3 --CONH--(CH.sub.2).sub.4 --NH--(CH.sub.2).sub.3 --NH--Xwherein R.sub.1 represents --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.6 ##STR1## R.sub.2 represents --(CH.sub.2).sub.2 -- or --CH.dbd.CH--, R.sub.3 represents --(CH(OH)--CH(OMe)--, --CH.sub.2 -- or --(CH.sub.2).sub.m --CH(OH)--(CH.sub.2).sub.n -- (m represent an integer of 0,1 or 2 and n represents an integer of 1 or 2)X represents a hydrogen atom or a group formed by removing a hydroxyl group from a carboxyl group of an amino acid,or a pharmacologically acceptable salt thereof as an active ingredient.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: March 26, 1991
    Assignee: Zaidanhojin Biseibutsu Kagakukenkyukai
    Inventors: Kyuichi Nemoto, Tetsushi Saino, Tomio Takeuchi, Teruya Nakamura
  • Patent number: 5003133
    Abstract: A multistage pushbutton device used to drive a push switch has a base, a first and second stage pushbutton members and drive members to drive the push switch. The first and second stage pushbutton members have first and second elastic arms respectively connected with the base at the one end thereof and a pushbutton is respectively provided on the other end of the arm. An elastic second arm is longer than said first arm and is placed at the position behind the first arm where it does not overlap the first arm in the back and forth direction and at least the part of said second arm overlaps at least the part of said first pushbutton in the back and forth direction.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: March 26, 1991
    Assignee: Clarion Corporation Ltd.
    Inventors: Shigetoshi Kobayashi, Miho Ariga
  • Patent number: 5000802
    Abstract: This invention relates to a water-in-oil type emulsion explosive comprising an aqueous oxidizer solution, an oily material, an emulsifier and hollow microspheres, in which the whole or a part of the oily material is replaced with a polymer which is oil-soluble and has a ladder structure in the molecule.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: March 19, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Yoshiyuki Ikeda, Atsuo Inoue, Yoshio Tanabe
  • Patent number: 4997972
    Abstract: A 2-acylamino-5-halogenated-cinnamic acid derivative represented by the formula (III) which is useful as an intermediate for producing medicines and agricultural chemicals: ##STR1## wherein Ac represents a lower acyl group, R represents a hydrogen atom or a lower alkyl group, and X.sub.1 represents a halogen atom. This derivative is obtained by reacting a compound represented by the formula (I), ##STR2## wherein Ac and X.sub.1 are as defined above, and X.sub.2 represents a bromine or iodine atom, with acrylic acid or its ester represented by the formula (II),CH.sub.2 .dbd.CHCOOR (II)where R is as defined above, in the presence of a palladium catalyst, a tri(unsubstituted- or substituted-phenyl)phosphine and an acid-binding agent.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: March 5, 1991
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hiroaki Ohno, Daisaku Matsunaga