Patents Assigned to Lumica Corporation
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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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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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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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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: 7147171Abstract: There is provided a diffuser for volatile material such as a volatile aromatic or chemical agent. The diffuser has a flexible casing having one or more vent holes formed therein and a breakable glass capsule hermetically enclosing a volatile agent. The capsule is contained in the flexible casing. A liquid-absorbent member is adapted to hold the volatile liquid.Type: GrantFiled: December 19, 2005Date of Patent: December 12, 2006Assignee: Lumica CorporationInventors: Shiro Harada, Masahiko Fujita
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Patent number: 7048203Abstract: The first object of the present invention is to provide a diffuser for volatile material such as a volatile aromatic or chemical agent, capable of promptly diffusing the volatile constituent of the liquid into a surrounding air in a simple operation. The second object of the present invention is to enable a long-term storage. The third object is to provide a compact diffuser enabling a user to enjoy different aroma according to a time and a place. The diffuser has a flexible casing having an inner space and a vent hole formed therein and a breakable glass capsule enclosing a volatile material, and a liquid-absorbent member.Type: GrantFiled: December 10, 2002Date of Patent: May 23, 2006Assignee: Lumica CorporationInventors: Shiro Harada, Masahiko Fujita
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Patent number: 6889826Abstract: The present invention provides a container including a housing with an opening and a wall. The wall includes an inner case 2 fitting into an outer case 1 while leaving a given distance therebetween to form first and second chambers. The first chamber 3 is located around the periphery of the opening of the housing. Further, a capsule 4 is housed in the first chamber 3. First and second substances capable of chemiluminescence upon reaction with one another are contained in the capsule 4 and in the second chamber 6, respectively.Type: GrantFiled: October 23, 2002Date of Patent: May 10, 2005Assignee: Lumica CorporationInventors: Shiro Harada, Masahiko Fujita, Toshifumi Shinohara
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Patent number: 6776495Abstract: The chemiluminescent device has a luminous body capable of generating light through a chemiluminescent reaction, and an outer layer for covering the luminous body. The outer layer is made of closed-cell plastic foam having a forming ratio in the range of 3 to 50%, preferably in the range of 20 to 30%. Closed-cell foamed polyethylene having no adverse environmental effect may be advantageously used as the closed-cell plastic foam. The chemiluminescent device having the outer layer made of closed-cell plastic foam provides increased luminous area, unsusceptibility to ambient temperature, and enhanced softness and shock-absorbability to achieve satisfactory luminescent effect, safety and reliability. The outer layer may have an outer surface formed with an irregularity to provide further enhanced luminescent effect.Type: GrantFiled: December 11, 2002Date of Patent: August 17, 2004Assignee: Lumica CorporationInventor: Jun Nomiyama
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Publication number: 20040141310Abstract: 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: ApplicationFiled: January 14, 2004Publication date: July 22, 2004Applicant: Lumica CorporationInventor: Masahiko Fujita
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Patent number: 6544093Abstract: A highly entertaining revolving and flying toy which is manufactured at low cost and can be seen in the dark. A revolving disk-shaped body 2 is provided with an insert pocket 2g in which chemical luminous body 3 is placed.Type: GrantFiled: July 3, 2001Date of Patent: April 8, 2003Assignee: Lumica CorporationInventor: Yuichi Komuro
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Publication number: 20020034918Abstract: A highly entertaining revolving and flying toy which is manufactured at low cost and can be seen in the dark. A revolving disk-shaped body 2 is provided with an insert pocket 2g in which chemical luminous body 3 is placed.Type: ApplicationFiled: July 3, 2001Publication date: March 21, 2002Applicant: Lumica CorporationInventor: Yuichi Komuro
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Patent number: D503005Type: GrantFiled: September 2, 2003Date of Patent: March 15, 2005Assignee: Lumica CorporationInventor: Masahiko Fujita
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Patent number: D693021Type: GrantFiled: September 5, 2012Date of Patent: November 5, 2013Assignee: Lumica CorporationInventor: Shiro Harada