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| Latest patents |
Results: 481-510 of 620
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Cell-targeted lytic pore-forming agents
The drawings are first briefly described. DRAWINGS FIGS. 1a-1c are a set of graphs showing activation of hemolytic activity in overlap mutants of .alpha.HL by protease treatment. A key to structures ... Read More
Inventors: Bayley, Hagen; Walker, Barbara J.;, Assignee: Worcester Foundation for Experimental Biology (Shrewsbury, MA) |
Yeast cells engineered to produce pheromone system protein surrogates, and uses therefor
In the present invention, a yeast cell is engineered to express an exogenous protein which is, however, capable of substituting for a yeast protein which is involved in the post-translational modifica... Read More
Inventors: Fowlkes, Dana Merriman; Broach, Jim; Manfredi, John; Klein, Christine; Murphy, Andrew J.; Paul, Jeremy; Trueheart, Joshua;, Assignee: Cadus Pharmaceutical Corporation (Tarrytown, NY) |
Removal of trace heavy metal contaminants from algae and the carrageenan contained therein
What is claimed: 1. A process for removing trace heavy metal contaminants from algae that contain a major amount of lambda-type carrageenan and from said carrageenan which comprises treating said alga... Read More
Inventors: Lin, Chii-Fa; Blanch, Julian E.;, Assignee: Stauffer Chemical Company (Westport, CT) |
Phenyl 5Z,8Z,11Z,14Z-eicosatetraenoate and congeners
What is claim is: 1. A compound of the formula wherein R' represents hydrogen, 2-alkyl containing fewer than 3 carbons, or 3methyl; R" represents hydrogen or 2-alkyl containing fewer than 3 carbons ex... Read More
Inventors: Liang, Chi-Dean;, Assignee: G. D. Searle & Co. (Skokie, IL) |
Unsaturated carboxylic acids and esters
What is claimed is: 1. A compound of the formula: ##STR4## wherein R' is hydrogen or lower alkyl of one to five carbon atoms. 2. A compound according to claim 1 wherein R' is hydrogen. 3. A compound a... Read More
Inventors: Anderson, Richard J.; Henrick, Clive A.;, Assignee: Zoecon Corporation (Palo Alto, CA) |
Hydroquinone sulfate derivatives and production thereof
I claim: 1. A compound of the formula: ##STR8## wherein either one of R.sub.1 and R.sub.2 is hydrogen or SO.sub.3 H and the other is SO.sub.3 H, Z is ##STR9## where m is an integer of 1-22, n is an in... Read More
Inventors: Imada, Isuke;, Assignee: Takeda Chemical Industries, Ltd. (Osaka, JP) |
Organotin compounds
We claim: 1. An organotin compound of the generic formula ##EQU17## wherein a is 0 or 1, each of x, x', y and y', which are the same or different, is an integer of 1-6, each of R.sub.1, R.sub.2, R.sub... Read More
Inventors: Collins, John Desmond; Coates, Harold; Siddiqui, Iftikhar Hussain;, Assignee: Albright & Wilson Limited (Oldbury, EN) |
Production of hydrogen peroxide
OF THE PREFERRED EMBODIMENTS Reagents Ia and Ib were prepared according to the following equations: ##STR1## The product of equation 4, a 2-chloro-3-[[2-(dimethylamino)ethyl]amino]-1,4-naphthoquinone... Read More
Inventors: Wrighton, Mark S.; Buchanan, Robert M.; Calabrese, Gary S.;, Assignee: Massachusetts Institute of Technology (Cambridge, MA) |
Developer for electrophotography having carrier particles, toner particles and electroconductive fine powders
What we claim is: 1. An electrophotographic developer which comprises magnetic particles coated with a low surface energy resin, toner particles and electroconductive fine powders from 0.001-1 micron ... Read More
Inventors: Ushiyama, Hisayuki; Ochi, Hisayuki; Miyamae, Tatsuo; Wakamiya, Katsutoshi;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Method for forming negative and positive images in electrophotographic process
It is therefore a primary object of the present invention to provide an electrophotographic process in which negative images and positive images can be optionally formed only by electric controls by u... Read More
Inventors: Fushida, Akira; Matsui, Toshikazu; Hasegawa, Yuuji; Maeda, Masahiko; Tsuji, Nobuyuki; Horiuchi, Akira; Yukitake, Kazunori;, Assignee: Mita Industrial Co., Ltd. (Osaka, JP) |
Dyed stabilized liquid developer and method for making
What is claimed is: 1. A stable colored liquid developer comprising an insulating liquid dispersion medium having dispersed therein a marking particle comprising a thermoplastic resin core substantial... Read More
Inventors: Croucher, Melvin D.; Duff, James M.; Hair, Michael L.; Lok, Kar P.; Wong, Raymond W.;, Assignee: Xerox Corporation (Stamford, CT) |
Fluidity improver for positively-charging resin powder
OF THE INVENTION Silica-type microparticles useful for the preparation of the fluidity improver of the present invention are, for example, fumed silica, silica aerogel, precipitated silica, and the c... Read More
Inventors: Kobayashi, Hideki;, Assignee: Toray Silicone Co., Ltd. (Tokyo, JP) |
Toner compositions with halogenated salicylic acid charge enhancing additives
What is claimed is: 1. A negatively charged toner composition comprised of resin particles, pigment particles, optional surface additives, and a halogenated salicylic acid charge enhancing additive of... Read More
Inventors: Law, Kock-Yee; Tarnawskyj, Ihor W.;, Assignee: Xerox Corporation (Stamford, CT) |
Electrophotographic image forming
Generally speaking, in accordance with the invention, photoconductive image forming is provided by selectively transferring toner corresponding to an image from a conductive support to a transparent i... Read More
Inventors: Kunugi, Masanao; Kurihara, Hajime; Mizumoto, Teruyuki;, Assignee: Seiko Epson Corporation (Tokyo, JP) |
Electrographic toner containing resin-compatible quaternary ammonium compound
What is claimed is: 1. A developer composition comprised of a carrier, toner resin, and a pigment which is coated with from about 0.1 to about 10 percent of a quaternary ammonium compound thereby caus... Read More
Inventors: Lu, Chin H.;, Assignee: Xerox Corporation (Stamford, CT) |
Method of imaging using nitrogen-containing additives for magnetic toners
What is claimed is: 1. A method of imaging using a single component field dependent toner having a resistivity of 10.sup.11 ohm-cm to 10.sup.20 ohm-cm and being conductive at high field strength of up... Read More
Inventors: Lu, Chin H.;, Assignee: Xerox Corporation (Stamford, CT) |
Processes for custom color encapsulated toner compositions
What is claimed is: 1. A process for obtaining custom color toner compositions which comprises admixing at least two encapsulated toners wherein each toner is comprised of a core comprised of a polyme... Read More
Inventors: Paine, Anthony J.; Martin, Trevor I.; Martins, Lurdes M.; Moffat, Karen A.; Mychajlowskij, Walter;, Assignee: Xerox Corporation (Stamford, CT) |
Toner emulsion aggregation processes
What is claimed is: 1. A process for the preparation of toner compositions with controlled particle size consisting essentially of: (i) preparing a pigment dispersion in water, which dispersion is com... Read More
Inventors: Patel, Raj D.; Kmiecik-Lawrynowicz, Grazyna E.; Hopper, Michael A.;, Assignee: Xerox Corporation (Stamford, CT) |
Production of surface-modified organic particles
OF THE INVENTION The organic particles (A) employed in the present invention may be prepared by art-known methods, such as melt-grinding method, suspension polymerization, dispersion polymerization, ... Read More
Inventors: Yabuuchi, Naoya; Kanakura, Akihiro; Kishida, Takahito; Maruta, Masayuki; Nagata, Koichi; Shimizu, Makoto;, Assignee: Nippon Paint Co., Ltd. (Osaka, JP) |
Anti-solar polymers, method of making the same and cosmetic compositions containing the same
What is claimed is: 1. Anti-solar polymer having in the macromolecular chain thereof from 10 to 100% by weight of units of the formula ##EQU2## wherein F represents ##SPC10## and from 90% to 0% by wei... Read More
Inventors: Jacquet, Bernard; Papantoniou, Christos; Dufaure, Pierre; Mahieux, Claude;, Assignee: L'Oreal (Paris, FR) |
Sunscreening compositions
We claim: 1. In a sunscreening composition comprising a pharmaceutical extending medium and an effective sunscreening amount of a dermally non-irritating, ultraviolet light-absorbing compound, the imp... Read More
Inventors: Degen, Peter John; Lucas, Anthony James;, Assignee: Minnesota Mining and Manufacturing Company (Saint Paul, MN) |
4-(1,1-Dimethylethyl)-4'-methoxydibenzoylmethane
I claim: 1. 4-(1,1-Dimethylethyl)-4'-methoxydibenzoylmethane. 2. A light-screen composition comprising an effective ultra violet absorbing amount of 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane an... Read More
Inventors: De Polo, Karl-Fred;, Assignee: Givaudan Corporation (Clifton, NJ) |
Nitrobenzoyl-3-cyclopropylaminoacrylates and a process for the preparation thereof
OF THE INVENTION The detailed preparation method of nitrobenzoylester compounds of the formula (II) from dihalobenzene is described in the previous patent application Ser. No. 321,972 of the same inv... Read More
Inventors: Kim, You Seung; Park, Sang Woo; Kim, Jea Cheol;, Assignee: Korea Advanced Institute of Science and Technology (Seoul, KR) |
Unsaturated polyesters
The invention overcomes above-discussed problems in the prior art. The invention provides unbranched, linear polyester polymers, capable of undergoing subsequent cross-linking to obtain high-density, ... Read More
Inventors: Bayley, Robert D.; Fox, Carol A.; Hoffend, Thomas R.; Mahabadi, Hadi K.; Agur, Enno E.; Sacripante, Guerino; Hawkins, Michael S.;, Assignee: Xerox Corporation (Stamford, CT) |
Toner composition for electrophotography with zinc oxide additive
OF THE INVENTION The colorants which can be used in the present invention typically include carbon black, Nigrosine, Aniline Blue, Chalcoyl Blue, Chrome Yellow, Ultramarine Blue, Du Pont Oil Red, Qui... Read More
Inventors: Saito, Susumu;, Assignee: Fuji Xerox Co., Ltd. (Tokyo, JP) |
Lithographic printing plate
OF THE INVENTION The lithographic printing plate according to the present invention can be prepared by forming a toner image by a conventional method, fixing or without fixing, effecting a whole surf... Read More
Inventors: Horie, Seiji; Kondo, Syunichi;, Assignee: Fuji Photo Film Co., Ltd. (Kanagawa, JP) |
Toner for developing electrostatic charge image and process for preparing the same
An object of the present invention is to provide a toner having a small-particle-size which has good toner adhesion as well as good developing properties, transferability and cleaning properties. Anot... Read More
Inventors: Akagi, Hideyuki; Saito, Susumu; Miura, Masaru; Imai, Takashi; Takei, Masayuki; Ichimura, Masanori; Take, Michio; Inoue, Satoshi; Yamamoto, Yasuo; Murofushi, Toshiaki; Nakazawa, Hiroshi; Fukushima, Koji;, Assignee: Fuji Xerox Co., Ltd. (Tokyo, JP) |
Piezo-active photoreceptor and system application
The deficiencies discussed above are overcome by the present invention. The charge retentive member of the invention described herein comprises a photoreceptive layer coupled to an electrode layer whi... Read More
Inventors: Snelling, Christopher; Mammino, Joseph; Mashtare, Dale R.;, Assignee: Xerox Corporation (Stamford, CT) |
Toner for use in developing electrostatic images
What we claim is: 1. In a method of electrophotography comprising developing an electrostatic latent image with a toner composition, then fixing the toner image by passing a paper bearing said toner i... Read More
Inventors: Tomono, Makoto; Tarumi, Noriyoshi; Sato, Masayuki;, Assignee: Konica Corporation (Tokyo, JP) |
Toner aggregation processes
What is claimed is: 1. A process for the preparation of toner compositions comprising: (i) forming a dispersion of resin in an aqueous ionic surfactant solution from a latex prepared by emulsion polym... Read More
Inventors: Patel, Raj D.; Kmiecik-Lawrynowicz, Grazyna E.; Hopper, Michael A.; Croucher, Melvin D.;, Assignee: Xerox Corporation (Stamford, CT) |
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Molecular Biology 
