Patents Assigned to Lumica Corporation
  • Patent number: 11685652
    Abstract: Provided is a chlorine dioxide generation device, suitable for long-term storage, discharging a chlorine dioxide-generating mixture that remains at an object of interest when used to thereby stably exhibit the effect of chlorine dioxide. A chlorine dioxide generation device, comprising: a first container containing a first composition comprising a chlorite and fumed silica; a second container containing a second composition comprising an acidic substance and fumed silica; an outer container housing the first container and the second container; a mixing section that mixes the first composition released from the first container and the second composition released from the second container to produce a mixed composition; and a discharging section that discharges the mixed composition produced by mixing in the mixing section.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: June 27, 2023
    Assignee: LUMICA CORPORATION
    Inventors: Shiro Harada, Masaya Ito
  • Patent number: 10815047
    Abstract: The object of present invention is to provide a chemiluminescent aerosol product that can easily form an expected quantity of a chemiluminescent composition which exhibits excellent storage stability, is stably self-held for a long period of time and achieves a good luminous effect. This aerosol product includes a double-structure container provided with a discharging mechanism for simultaneously discharging contents filled in two liquid concentrate filling spaces. A propellant filling space is filled with a propellant composed of a compressed gas, a first liquid concentrate filling space is filled with a first liquid concentrate composition containing an oxalic acid ester, a fluorescent substance and a thickener, and having a viscosity of 10,000-200,000 mPa·s (20° C.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: October 27, 2020
    Assignees: LUMICA CORPORATION, TOYO AEROSOL INDUSTRY CO., LTD.
    Inventors: Makoto Tsubouchi, Keisuke Koshizuka, Yasutomo Nakajima, Shinichi Tsunoda, Masaya Ito, Shiro Harada
  • Patent number: 10070032
    Abstract: A wireless communication assistant tool includes an electric wire disposed at one end thereof relative to an antenna of a first wireless communication device, a camera, in a contactless condition, and at the other end thereof relative to an antenna of a second wireless communication device, a smartphone, in a contactless condition. Disposition of such electric wire permits wireless communication between the camera and the smartphone through the electric wire acting as a transmission path, so that the camera and the smartphone can make communication with each other without being interfered with other radio signals.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: September 4, 2018
    Assignee: LUMICA CORPORATION
    Inventors: Shiro Harada, Shizuki Dogawa, Koichi Himeno
  • Patent number: 9772070
    Abstract: A chemical illuminant includes an outer case comprising sealable opposite ends situated in a lengthwise direction of the outer case; one ampoule housed in the outer case; a pair of compositions that emit light when mixed with each other; and a spacer arranged in the outer case, wherein one of the compositions is contained in a space formed inside of the outer case, but outside of the ampoule, and the other of the compositions is contained in the ampoule, a space in which the one of the compositions is contained is formed between the spacer and an inner surface of the outer case, at least one recess is formed at a periphery of the spacer, and the ampoule is supported in the recess.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: September 26, 2017
    Assignee: Lumica Corporation
    Inventors: Shiro Harada, Yuichi Komuro
  • Publication number: 20160123540
    Abstract: A chemical illuminant includes an outer case comprising sealable opposite ends situated in a lengthwise direction of the outer case; one ampoule housed in the outer case; a pair of compositions that emit light when mixed with each other; and a spacer arranged in the outer case, wherein one of the compositions is contained in a space formed inside of the outer case, but outside of the ampoule, and the other of the compositions is contained in the ampoule, a space in which the one of the compositions is contained is formed between the spacer and an inner surface of the outer case, at least one recess is formed at a periphery of the spacer, and the ampoule is supported in the recess.
    Type: Application
    Filed: September 14, 2015
    Publication date: May 5, 2016
    Applicant: LUMICA CORPORATION
    Inventors: Shiro Harada, Yuichi Komuro
  • Patent number: 8815128
    Abstract: Provided are an oxidizing liquid for a chemiluminescent material, which has a flash point higher than that of a conventional oxidizing liquid and also has high safety while maintaining the level of chemiluminescent performance; and a chemiluminescence system. Disclosed are an oxidizing liquid for a chemiluminescent material, which produces a chemiluminescence phenomenon when mixed with a fluorescent liquid containing an oxalic acid ester and a fluorescent substance, includes hydrogen peroxide and a solvent and has a flash point of 60° C. or higher, wherein a solvent to be contained in the oxidizing liquid is a mixture of at least two compounds other than phthalate compounds; and a chemiluminescence system using the oxidizing liquid and a fluorescent liquid.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: August 26, 2014
    Assignee: Lumica Corporation
    Inventors: Masataka Kobayashi, Hiroyuki Sano
  • Patent number: 8110145
    Abstract: It is intended to provide a method whereby residual detergent (surfactant) can be conveniently and accurately detected in the step of washing or rinsing dishes or clothes, and a test device usable in examining the rinsed conditions. Namely, a method characterized by comprising bringing a test substance with a composition (test agent) comprising an oxalic acid ester, a fluorescent substance, hydrogen peroxide and a strong acid and thus easily detecting the residual detergent sticking to the surface of the test subject from the chemiluminescence thus caused; and a test device which is most suitable for storing the test agent as described above.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: February 7, 2012
    Assignee: Lumica Corporation
    Inventor: Shiro Harada
  • Publication number: 20110206556
    Abstract: It is intended to provide a method whereby residual detergent (surfactant) can be conveniently and accurately detected in the step of washing or rinsing dishes or clothes, and a test device usable in examining the rinsed conditions. Namely, a method characterized by comprising bringing a test substance with a composition (test agent) comprising an oxalic acid ester, a fluorescent substance, hydrogen peroxide and a strong acid and thus easily detecting the residual detergent sticking to the surface of the test subject from the chemiluminescence thus caused; and a test device which is most suitable for storing the test agent as described above.
    Type: Application
    Filed: April 21, 2011
    Publication date: August 25, 2011
    Applicant: LUMICA CORPORATION
    Inventor: Shiro Harada
  • Patent number: 7955860
    Abstract: It is intended to provide a method whereby residual detergent (surfactant) can be conveniently and accurately detected in the step of washing or rinsing dishes or clothes, and a test device usable in examining the rinsed conditions. Namely, a method characterized by comprising bringing a test substance with a composition (test agent) comprising an oxalic acid ester, a fluorescent substance, hydrogen peroxide and a strong acid and thus easily detecting the residual detergent sticking to the surface of the test subject from the chemiluminescence thus caused; and a test device which is most suitable for storing the test agent as described above.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: June 7, 2011
    Assignee: Lumica Corporation
    Inventor: Shiro Harada
  • Patent number: 7833111
    Abstract: A light-emitting golf ball is provided. The light-emitting golf ball is characterized in that hemispherical first hollow portions extend from the surface toward the center of a core, second hollow portions having a diameter less than that of the first hollow portions extend from bottom zones of the first hollow portions toward the center of the core, narrow holes extend through the core from the second hollow portions to portions of the core that are opposed to the second hollow portions, a ball body includes a transparent cover layer extending over the core surface, chemical light-emitting bodies include sealed vessels made of a flexible transparent material, the sealed vessels have cylindrical portions and round light-emitting portions having a diameter greater than that of the cylindrical portions, the cylindrical portions are tightly fit in the second hollow portions, and the light-emitting portions are fit in the first hollow portions.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: November 16, 2010
    Assignee: Lumica Corporation
    Inventor: Shiro Harada
  • Publication number: 20100047005
    Abstract: An object of the present invention is to provide a light-emitting writing instrument that can indicate characters and figures by utilizing chemiluminescence phenomena and a light-emitting indicator using the light-emitting writing instrument. A light-emitting wiring instrument 1 includes a fluorescent liquid 21 and an oxidizing liquid 31 that are respectively sealed in destructible containers 2 and 3 and that generate a chemiluminescence phenomenon when mixed with each other; a rod-shaped cylindrical container 4 that also functions as a grip and accommodates a mixture of the fluorescent liquid 21 and the oxidizing liquid 31 discharged from the destructible containers 2 and 3; and an application portion 5 liquid-tightly attached to a tip of the cylindrical container 4 so as to be communicated with the cylindrical container 4. A light-emitting indicator 8 using the light-emitting writing instrument 1 (to be continued).
    Type: Application
    Filed: November 6, 2006
    Publication date: February 25, 2010
    Applicant: LUMICA CORPORATION
    Inventors: Shiro Harada, Masahiko Fujita, Toshifumi Shinohara
  • Publication number: 20100000556
    Abstract: The currently available artificial nails swell as a whole and undergo deformation, which damages the commercial value thereof. Moreover, they suffer from another problem of not evenly glowing as a whole due to the occurrence of some non-glowing spaces. In an airtight hollow container having a roughly crescent-shaped cross section and having light-permeability and flexibility, therefore, a space free from capillary action is ensured at the inside of an area joining the lower wall and the upper wall. Then, one of two kinds of compositions, which show chemical luminescence when mixed together, is packed in a breakable glass ampule in the airtight hollow container while the other composition is packed outside the glass ampule in the airtight hollow container.
    Type: Application
    Filed: May 24, 2007
    Publication date: January 7, 2010
    Applicant: LUMICA CORPORATION
    Inventors: Masahiko Fujita, Chika Yoshida, Atsushi Ikenaga
  • Publication number: 20090325308
    Abstract: It is intended to provide a method whereby residual detergent (surfactant) can be conveniently and accurately detected in the step of washing or rinsing dishes or clothes, and a test device usable in examining the rinsed conditions. Namely, a method characterized by comprising bringing a test substance with a composition (test agent) comprising an oxalic acid ester, a fluorescent substance, hydrogen peroxide and a strong acid and thus easily detecting the residual detergent sticking to the surface of the test subject from the chemiluminescence thus caused; and a test device which is most suitable for storing the test agent as described above.
    Type: Application
    Filed: December 29, 2006
    Publication date: December 31, 2009
    Applicant: LUMICA CORPORATION
    Inventor: Shiro Harada
  • Publication number: 20090062033
    Abstract: A light-emitting golf ball is provided. The light-emitting golf ball is characterized in that hemispherical first hollow portions extend from the surface toward the center of a core, second hollow portions having a diameter less than that of the first hollow portions extend from bottom zones of the first hollow portions toward the center of the core, narrow holes extend through the core from the second hollow portions to portions of the core that are opposed to the second hollow portions, a ball body includes a transparent cover layer extending over the core surface, chemical light-emitting bodies include sealed vessels made of a flexible transparent material, the sealed vessels have cylindrical portions and round light-emitting portions having a diameter greater than that of the cylindrical portions, the cylindrical portions are tightly fit in the second hollow portions, and the light-emitting portions are fit in the first hollow portions.
    Type: Application
    Filed: May 18, 2005
    Publication date: March 5, 2009
    Applicant: LUMICA CORPORATION
    Inventor: Shiro Harada
  • Publication number: 20080246009
    Abstract: A composition exhibiting significantly increased luminance as compared with that of a known luminescent composition is provided. The composition constitutes a system in which chemiluminescence is effected by mixing two types of compositions and includes a composition A in which an oxalic ester is present in a solid state in a solution containing the oxalic ester and a luminescent substance both dissolved therein and a composition B in which aqueous hydrogen peroxide and a catalyst is dissolved in a solution.
    Type: Application
    Filed: April 22, 2005
    Publication date: October 9, 2008
    Applicant: LUMICA CORPORATION
    Inventors: Masahiko Fujita, Tetsuro Yamate
  • Patent number: 7416689
    Abstract: The present invention provides a chemiluminescent composition including an oxalate and a fluorescent material wherein the chemiluminescent composition is mixed with a composition including hydrogen peroxide to induce chemiluminescence. The chemiluminescent composition comprises a solvent for the oxalate and the fluorescent material, which includes an acetyl citrate ester or an organic solvent containing an acetyl citrate ester. As an alternative to dibutyl phthalate which is suspected to be one of endocrine disrupting chemicals, the solvent of the present invention can assure safety to human body while maintaining excellent storage stability and luminescent performance.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: August 26, 2008
    Assignee: Lumica Corporation
    Inventor: Tetsuro Yamate
  • Publication number: 20080132363
    Abstract: The present invention provides a light-emitting ball, including surface layers and a tube covered therewith, for a ball game. A plurality of light-transmissive, elastic luminescent-body fixtures including light-emitting panels and luminescent body-retaining sections are arranged in the ball such that the light-emitting panels are exposed from holes, arranged in the surface layers, having substantially a circular shape. The luminescent body-retaining sections are substantially circular and have a size greater than that of the light-emitting panels. Outer end portions of the luminescent body-retaining sections are fixed between the surface layers and the tube. Luminescent-body insertion ports laterally extending in surface portions of the light-emitting panels are connected to cavities laterally extending in the luminescent body-retaining sections; hence, luminescent bodies can be detachably attached to the ball. The ball is practical in that the ball can be hit by a hand, kicked, or thrown against a floor.
    Type: Application
    Filed: February 24, 2005
    Publication date: June 5, 2008
    Applicant: Lumica Corporation
    Inventor: Shiro Harada
  • Patent number: 7234827
    Abstract: A first object is to prevent the leakage of chemiluminescent liquid during chemiluminescence. A second object is to provide enhanced shock resistance. A third object is to provide enhanced hydraulic-pressure resistance and a product at a low cost. A chemiluminescent device comprises a container, and a synthetic-resin ampoule contained in the flexible container. The ampoule has a surface formed with a groove extending along the circumferential direction thereof.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: June 26, 2007
    Assignee: Lumica Corporation
    Inventor: Masahiko Fujita
  • Patent number: 7216998
    Abstract: A first object is to prevent the leakage of chemiluminescent liquid during chemiluminescence. A second object is to provide enhanced shock resistance. A third object is to provide enhanced hydraulic-pressure resistance and a product at a low cost. A chemiluminescent device comprises a container, and a synthetic-resin ampoule contained in the flexible container. The ampoule has a surface formed with a groove extending along the circumferential direction thereof.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: May 15, 2007
    Assignee: Lumica Corporation
    Inventor: Masahiko Fujita
  • Patent number: D693021
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: November 5, 2013
    Assignee: Lumica Corporation
    Inventor: Shiro Harada