Patents by Inventor Akira Hirasawa

Akira Hirasawa 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).

  • Publication number: 20050077020
    Abstract: It is intended to provide sanitary paper which is excellent in texture such as moistness and softness and scarcely causes skin irritation or blushing even if it is brought into contact with the skin frequently. Namely, sanitary paper having an oil absorbance specified in JIS P8141 of 7 mm or less and a moisture content of from 9.50 to 15.00% (measured in accordance with JIS P8127 after conditioning in accordance with JIS P8111); carrying a solution, which contains a moistening agent, a softener, an antioxidant and so on, coated in a dose of 46.0 to 160.0 mg/cm3 of the paper base; and having a bending hardness B measured with the use of a pure bending machine of from 0.0040 to 0.0060 g·cm2/cm.
    Type: Application
    Filed: December 2, 2002
    Publication date: April 14, 2005
    Inventor: Akira Hirasawa
  • Publication number: 20040234805
    Abstract: A sanitary tissue paper roll wherein, when a sanitary tissue paper roll of two-ply or three-ply is laid on a horizontal surface with its center axis in a horizontal orientation; and a circular plate indenter, having an area of 2 cm2 and being arranged at the center of an upper surface of an outer periphery of a body of said roll, is vertically pressed at least at respective pressing pressures of 0.5 gf/cm2 and 50 gf/cm2, a difference in depths upon said respective pressing is within a range of 2.5-3.5 mm. A sanitary tissue paper roll made by winding one sheet or two layered sheets of sanitary tissue papers wherein a roll compressibility of said roll is 0.68-0.74 m/cm2, said roll compressibility being defined as a value obtained by dividing a roll length by a cross section of said roll.
    Type: Application
    Filed: May 28, 2004
    Publication date: November 25, 2004
    Inventors: Akira Hirasawa, Takeharu Mukai
  • Publication number: 20040077250
    Abstract: Irradiating an organic electroluminescence device with a laser beam to form a luminescent pattern on the organic electroluminescence device. According to the configuration, the forming of the luminescent pattern of the organic electroluminescence device can be achieved at high efficiency and with low cost.
    Type: Application
    Filed: October 3, 2003
    Publication date: April 22, 2004
    Applicant: PIONEER CORPORATION
    Inventors: Toshiyuki Miyadera, Akira Hirasawa
  • Patent number: 5798315
    Abstract: A microcapsule-containing oil-based coating liquid wherein the coating liquid comprises a hydrophobic core material-containing microcapsule particles dispersed individually in a state of primary particle in an oil varnish for ink use or a resin for coating use, and a solvent having an affinity for both the varnish or the resin and the surface of the microcapsule wall material in a state of having been attracted with the affinity to both the varnish or the resin and the surface layer of the microcapsule wall material. The preferred solvent is a lower divalent or multivalent alcohol.A preparative method of the foregoing coating liquid by utilizing vacuum distillation is also proposed.A sheet, like a duplicating sheet of paper coated with the foregoing oil-based coating liquid is further provided.According to the present invention, a water-based microcapsules system can be advantageously converted into an oil-based one without coagulating the primary microcapsule particles.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: August 25, 1998
    Assignee: Toppan Moore Co., Ltd.
    Inventors: Kei Etoh, Akira Hirasawa, Hisano Higurashi, Makoto Kawamura
  • Patent number: 5646203
    Abstract: A microcapsule-containing oil-based coating liquid wherein the coating liquid comprises a hydrophobic core material-containing microcapsule particles dispersed individually in a state of primary particle in an oil varnish for ink use or a resin for coating use, and a solvent having an affinity for both the varnish or the resin and the surface of the microcapsule wall material in a state of having been attracted with the affinity to both the varnish or the resin and the surface layer of the microcapsule wall material. The preferred solvent is a lower divalent or multivalent alcohol.A preparative method of the foregoing coating liquid by utilizing vacuum distillation is also proposed.A sheet, like a duplicating sheet of paper coated with the foregoing oil-based coating liquid is further provided.According to the present invention, a water-based microcapsules system can be advantageously converted into an oil-based one without coagulating the primary microcapsule particles.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: July 8, 1997
    Assignee: Toppan Moore Co., Ltd.
    Inventors: Kei Etoh, Akira Hirasawa, Hisano Higurashi, Makoto Kawamura
  • Patent number: 5229400
    Abstract: A piperidine derivative of general formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein ##STR2## is any of several specified aromatic-containing groups; X is selected from one of several hetero atom-containing groups or C.sub.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: July 20, 1993
    Assignee: Ajinomoto Co., Inc.
    Inventors: Akira Hirasawa, Masataka Shoji, Ryota Yoshimoto, Yuichi Gyotoku, Chikahiko Eguchi