Patents by Inventor Keiichi Uehara

Keiichi Uehara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5080992
    Abstract: Coloring fine particles produced by heating spheroidal coloring fine particles with an average fine particle diameter of 1-100 .mu.m obtained by suspension polymerization to a temperature of 30.degree. to 200.degree. C., thereby causing the particles to fuse together in a block without completely destroying the particle interfaces, and then crushing the block to substantially the same average particle diameter of the spheroidal coloring particle before melting, and a toner for developing electrostatic images using the same.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: January 14, 1992
    Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.
    Inventors: Yoshikuni Mori, Hayato Ikeda, Mitsuo Kushino, Nobuaki Urashima, Keiichi Uehara, Masuji Izubayashi, Yoshinori Sano
  • Patent number: 4663080
    Abstract: Hypo-allergenic moss oil from which ethyl hematommate and/or ethyl chlorohematommate or atranorin and/or chloroatranorin are substantially removed. This hypo-allergenic moss oil can be produced by chromatography separation, solvent extraction, countercurrent partition, and/or membrane separation or catalytic hydrogenation treatment and/or alkaline treatment.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: May 5, 1987
    Assignee: Shiseido Company Ltd.
    Inventors: Yushi Terajima, Katsuhiko Tokuda, Shoji Nakamura, Keiichi Uehara, Hideyuki Ichikawa, Shinobu Iwakami
  • Patent number: 4464290
    Abstract: Hypo-allergenic jasmine oil is presented. This hypo-allergenic jasmine oil can be obtained by removing coniferyl benzoate and coniferyl acetate from natural flower essential jasmine oil by means of distillation, molecular distillation, preparative gas chromatography, preparative column chromatography, alkaline treatment or any combination thereof.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: August 7, 1984
    Assignee: Shiseido Company Ltd.
    Inventors: Saburo Ohta, Shoji Nakamura, Katsutake Hayashi, Katsuyuki Yomogida, Hideo Morohoshi, Seiichi Hirose, Keiichi Uehara, Masanori Aizawa, Yoshihisa Sato, Hideyuki Ichikawa, Masayuki Tejima, Seisaku Togano
  • Patent number: 4349892
    Abstract: A magnetic bubble detector according to this invention is constructed of a bubble expander, a bubble detecting element and a bubble sweeper. Moreover, at least the width of soft magnetic material-elements constituting the bubble detecting element as taken in the propagating direction of magnetic bubbles is greater than that of soft magnetic material-elements constituting the bubble expander. As a result, the distances or distance between the magnetic bubble in the bubble detecting element and the magnetic bubbles or bubble in the bubble expander and/or the bubble sweeper increase or increases, so that a magnetic bubble detector of high signal-to-noise ratio is provided.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: September 14, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Ryo Suzuki, Keiichi Uehara, Teruaki Takeuchi, Masatoshi Takeshita
  • Patent number: 4326268
    Abstract: A magnetic bubble memory device according to this invention comprises a plurality of minor loops, a read-out major line is disposed at one end of the minor loops through gates having a replicating function, and a magnetic bubble detector which includes a detecting line is disposed at one end of the major line. Further, a propagation length from the other end of the read-out major line to the detecting line of the magnetic bubble detector is set at a bit length which slightly exceeds four times the number of the minor loops. For this reason, a continuous read-out operation at high speed is permitted without the influence of replicate pulses.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: April 20, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Ryo Suzuki, Keiichi Uehara, Teruaki Takeuchi, Masatoshi Takeshita
  • Patent number: 4171455
    Abstract: A novel nonionic compound, a polyoxypropylene polyoxyethylene addition ether of a higher branched primary saturated alcohol is provided. This nonionic compound is suitable for use, as a solubilizing agent, in a high concentration solution of a lower alcohol in water, for example, in cosmetics such as a transparent liquid hair preparation, a hair cologne, an after-shaving lotion, a skin lotion and the like.
    Type: Grant
    Filed: September 19, 1978
    Date of Patent: October 16, 1979
    Assignee: Shiseido Company Ltd.
    Inventors: Kenichi Tomita, Keiichi Uehara, Kenji Torii, Takahiro Okuda, Hakuji Katsura, Isao Hirano
  • Patent number: 4110626
    Abstract: A method for improving the quality of the fragrance of a perfume or a perfume composition by adding thereto a specific perfume controlling agent which improves emission of a perfume or a perfume composition and its tenacity (fixing effect), and which is an aliphatic dibasic acid diester of the general formula:R.sub.1 OCOR.sub.2 COOR.sub.3wherein R.sub.1 and R.sub.3, which may be the same or different, each represents a saturated branched chain alkyl group containing 4 or 5 carbon atoms, and R.sub.2 represents a saturated straight chain alkylene group containing 4 carbon atoms, as an active ingredient.
    Type: Grant
    Filed: January 27, 1977
    Date of Patent: August 29, 1978
    Assignee: Shiseido Co., Ltd.
    Inventors: Michihisa Katada, Katsutake Hayashi, Hakuji Katsura, Kenichi Tomita, Hideo Morohoshi, Keiichi Uehara, Hiroshi Tanaka