Patents Assigned to Lumica Corporation
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Patent number: 11685652Abstract: 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: GrantFiled: April 15, 2020Date of Patent: June 27, 2023Assignee: LUMICA CORPORATIONInventors: Shiro Harada, Masaya Ito
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Patent number: 10815047Abstract: 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: GrantFiled: March 14, 2019Date of Patent: October 27, 2020Assignees: LUMICA CORPORATION, TOYO AEROSOL INDUSTRY CO., LTD.Inventors: Makoto Tsubouchi, Keisuke Koshizuka, Yasutomo Nakajima, Shinichi Tsunoda, Masaya Ito, Shiro Harada
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Patent number: 10070032Abstract: 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: GrantFiled: July 17, 2017Date of Patent: September 4, 2018Assignee: LUMICA CORPORATIONInventors: Shiro Harada, Shizuki Dogawa, Koichi Himeno
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Patent number: 9772070Abstract: 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: GrantFiled: September 14, 2015Date of Patent: September 26, 2017Assignee: Lumica CorporationInventors: Shiro Harada, Yuichi Komuro
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Publication number: 20160123540Abstract: 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: ApplicationFiled: September 14, 2015Publication date: May 5, 2016Applicant: LUMICA CORPORATIONInventors: Shiro Harada, Yuichi Komuro
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Patent number: 8815128Abstract: 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: GrantFiled: January 27, 2011Date of Patent: August 26, 2014Assignee: Lumica CorporationInventors: Masataka Kobayashi, Hiroyuki Sano
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Patent number: 8110145Abstract: 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: GrantFiled: April 21, 2011Date of Patent: February 7, 2012Assignee: Lumica CorporationInventor: Shiro Harada
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Publication number: 20110206556Abstract: 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: ApplicationFiled: April 21, 2011Publication date: August 25, 2011Applicant: LUMICA CORPORATIONInventor: Shiro Harada
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Patent number: 7955860Abstract: 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: GrantFiled: December 29, 2006Date of Patent: June 7, 2011Assignee: Lumica CorporationInventor: Shiro Harada
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Patent number: 7833111Abstract: 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: GrantFiled: May 18, 2005Date of Patent: November 16, 2010Assignee: Lumica CorporationInventor: Shiro Harada
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Publication number: 20100047005Abstract: 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: ApplicationFiled: November 6, 2006Publication date: February 25, 2010Applicant: LUMICA CORPORATIONInventors: Shiro Harada, Masahiko Fujita, Toshifumi Shinohara
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Publication number: 20100000556Abstract: 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: ApplicationFiled: May 24, 2007Publication date: January 7, 2010Applicant: LUMICA CORPORATIONInventors: Masahiko Fujita, Chika Yoshida, Atsushi Ikenaga
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Publication number: 20090325308Abstract: 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: ApplicationFiled: December 29, 2006Publication date: December 31, 2009Applicant: LUMICA CORPORATIONInventor: Shiro Harada
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Publication number: 20090062033Abstract: 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: ApplicationFiled: May 18, 2005Publication date: March 5, 2009Applicant: LUMICA CORPORATIONInventor: Shiro Harada
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Publication number: 20080246009Abstract: 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: ApplicationFiled: April 22, 2005Publication date: October 9, 2008Applicant: LUMICA CORPORATIONInventors: Masahiko Fujita, Tetsuro Yamate
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Patent number: 7416689Abstract: 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: GrantFiled: April 9, 2004Date of Patent: August 26, 2008Assignee: Lumica CorporationInventor: Tetsuro Yamate
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Publication number: 20080132363Abstract: 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: ApplicationFiled: February 24, 2005Publication date: June 5, 2008Applicant: Lumica CorporationInventor: Shiro Harada
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Patent number: 7234827Abstract: 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: GrantFiled: January 14, 2004Date of Patent: June 26, 2007Assignee: Lumica CorporationInventor: Masahiko Fujita
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Patent number: 7216998Abstract: 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: GrantFiled: November 27, 2002Date of Patent: May 15, 2007Assignee: Lumica CorporationInventor: Masahiko Fujita
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Patent number: D693021Type: GrantFiled: September 5, 2012Date of Patent: November 5, 2013Assignee: Lumica CorporationInventor: Shiro Harada