Patents by Inventor Yoshiyuki Kageyama
Yoshiyuki Kageyama 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).
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Publication number: 20230261166Abstract: A method of manufacturing a light source device includes: disposing bumps containing a first metal on a first substrate which is thermally conductive; disposing a bonding member on the bumps, the bonding member containing Au—Sn alloy; disposing a light emitting element on the bumps and the bonding member; and heating the first substrate equipped with the bumps, the bonding member, and the light emitting element.Type: ApplicationFiled: April 24, 2023Publication date: August 17, 2023Applicant: NICHIA CORPORATIONInventors: Takashi MATSUMOTO, Naoki HARADA, Fukutaro SAEGUSA, Yoshiyuki KAGEYAMA
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Patent number: 11725796Abstract: A light-emitting module includes a first substrate, a heat dissipation member, a second substrate, and a light-emitting element. The heat dissipation member is disposed on the first substrate. The second substrate is disposed on the heat dissipation member. The light-emitting element is disposed on a lower surface of the first substrate or an upper surface of the second substrate. The heat dissipation member includes a graphite member and a metal member. The graphite member has a first surface facing the first substrate and a second surface located opposite to the first surface. The graphite member has a first groove extending in a first direction in the first surface. The metal member includes a first internal metal member disposed in the first groove.Type: GrantFiled: June 28, 2022Date of Patent: August 15, 2023Assignee: NICHIA CORPORATIONInventors: Yoshiyuki Kageyama, Kenji Ozeki
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Patent number: 11677062Abstract: A method of manufacturing a light source device includes: disposing bumps containing a first metal on a first substrate which is thermally conductive; disposing a bonding member on the bumps, the bonding member containing Au—Sn alloy; disposing a light emitting element on the bumps and the bonding member; and heating the first substrate equipped with the bumps, the bonding member, and the light emitting element.Type: GrantFiled: December 23, 2019Date of Patent: June 13, 2023Assignee: NICHIA CORPORATIONInventors: Takashi Matsumoto, Naoki Harada, Fukutaro Saegusa, Yoshiyuki Kageyama
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Publication number: 20230115310Abstract: A method for estimating a temperature of a light emitting module having a plurality of light emitting elements is provided. The method includes, based on a lighting pattern of the light emitting module, which represents an intensity of light emitted from each of the light emitting elements, estimating respective temperatures of at least a part of the light emitting elements that are operated in accordance with the lighting pattern.Type: ApplicationFiled: September 29, 2022Publication date: April 13, 2023Inventors: Daisuke SANGA, Yoshiki YAMAJI, Yoshiyuki KAGEYAMA, Hiroaki KURODA
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Patent number: 11619368Abstract: A light-emitting module includes a first mounting board having a first surface and a second surface opposite to the first surface. The first mounting board has a recess on the first surface, and the recess has a bottom surface. The first mounting board has an opening passing through the first mounting board from the bottom surface to the second surface. The light-emitting module further includes a second mounting board provided in the recess, a light-emitting element provided on the second mounting board and configured to emit light through the opening, and an elastic cushion provided between the first mounting board and the second mounting board. The light-emitting module also includes a connector. The connector and the opening sandwich a center of the first mounting board when viewed from a direction from the second surface to the first surface.Type: GrantFiled: June 7, 2022Date of Patent: April 4, 2023Assignee: NICHIA CORPORATIONInventors: Yoshiyuki Kageyama, Kimihiro Miyamoto, Takashi Tani
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Publication number: 20230003361Abstract: A light-emitting module includes a first substrate, a heat dissipation member, a second substrate, and a light-emitting element. The heat dissipation member is disposed on the first substrate. The second substrate is disposed on the heat dissipation member. The light-emitting element is disposed on a lower surface of the first substrate or an upper surface of the second substrate. The heat dissipation member includes a graphite member and a metal member. The graphite member has a first surface facing the first substrate and a second surface located opposite to the first surface. The graphite member has a first groove extending in a first direction in the first surface. The metal member includes a first internal metal member disposed in the first groove.Type: ApplicationFiled: June 28, 2022Publication date: January 5, 2023Applicant: NICHIA CORPORATIONInventors: Yoshiyuki KAGEYAMA, Kenji OZEKI
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Publication number: 20220299192Abstract: A light-emitting module includes a first mounting board having a first surface and a second surface opposite to the first surface. The first mounting board has a recess on the first surface, and the recess has a bottom surface. The first mounting board has an opening passing through the first mounting board from the bottom surface to the second surface. The light-emitting module further includes a second mounting board provided in the recess, a light-emitting element provided on the second mounting board and configured to emit light through the opening, and an elastic cushion provided between the first mounting board and the second mounting board. The light-emitting module also includes a connector. The connector and the opening sandwich a center of the first mounting board when viewed from a direction from the second surface to the first surface.Type: ApplicationFiled: June 7, 2022Publication date: September 22, 2022Applicant: NICHIA CORPORATIONInventors: Yoshiyuki KAGEYAMA, Kimihiro MIYAMOTO, Takashi TANI
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Patent number: 11378259Abstract: A light-emitting module includes a first mounting board which has a first surface, a second surface opposite to the first surface, and a recess on the first surface. An opening passes through the first mounting board from a bottom surface of the recess to the second surface. A second mounting board has a mounting surface and a light-emitting element surface opposite to the mounting surface and is provided in the recess such that the light-emitting element surface faces the bottom surface of the recess. A light-emitting element is provided on the light-emitting element surface and configured to emit light through the opening. An elastic cushion is provided between the bottom surface and the light-emitting element surface. The second mounting board projects from the first surface of the first mounting board when a force pressing the second mounting board toward the bottom surface of the recess is not applied.Type: GrantFiled: December 18, 2019Date of Patent: July 5, 2022Assignee: NICHIA CORPORATIONInventors: Yoshiyuki Kageyama, Kimihiro Miyamoto, Takashi Tani
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Publication number: 20200200371Abstract: A light-emitting module includes a first mounting board which has a first surface, a second surface opposite to the first surface, and a recess on the first surface. An opening passes through the first mounting board from a bottom surface of the recess to the second surface. A second mounting board has a mounting surface and a light-emitting element surface opposite to the mounting surface and is provided in the recess such that the light-emitting element surface faces the bottom surface of the recess. A light-emitting element is provided on the light-emitting element surface and configured to emit light through the opening. An elastic cushion is provided between the bottom surface and the light-emitting element surface. The second mounting board projects from the first surface of the first mounting board when a force pressing the second mounting board toward the bottom surface of the recess is not applied.Type: ApplicationFiled: December 18, 2019Publication date: June 25, 2020Applicant: NICHIA CORPORATIONInventors: Yoshiyuki KAGEYAMA, Kimihiro MIYAMOTO, Takashi TANI
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Publication number: 20200203589Abstract: A method of manufacturing a light source device includes: disposing bumps containing a first metal on a first substrate which is thermally conductive; disposing a bonding member on the bumps, the bonding member containing Au—Sn alloy; disposing a light emitting element on the bumps and the bonding member; and heating the first substrate equipped with the bumps, the bonding member, and the light emitting element.Type: ApplicationFiled: December 23, 2019Publication date: June 25, 2020Applicant: NICHIA CORPORATIONInventors: Takashi MATSUMOTO, Naoki HARADA, Fukutaro SAEGUSA, Yoshiyuki KAGEYAMA
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Patent number: 7366075Abstract: An optical recording medium has a phase-change recording layer containing Sb and Te as essential elements therefor, to which is added at least one element selected from the group consisting of Ag, Au, Cu, Zn, B, Al, Ga, In, Si, Ge, Sn, Pb, N, P, Bi, La, Ce, Gd, and Tb, the recording layer being capable of assuming an amorphous phase changed from a crystalline phase by the application of a laser beam thereto, thereby optically recording information. Recording marks are formed in the recording medium by converting a light emission wave of laser beam into a recording pulse train comprising a plurality of on-pulses and off-pulses, with a recording frequency being continuously changed corresponding to the location of each of the recording marks in the radial direction of said recording medium. A recording apparatus has laser beam driving circuit means, signal generation means, and signal transmission means for achieving the above recording method.Type: GrantFiled: July 21, 2006Date of Patent: April 29, 2008Assignee: Ricoh Company, ltd.Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
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Patent number: 7288224Abstract: A sputtering target contains a target material including as constituent elements Ag, In, Te and Sb with the respective atomic percents (atom. %) of ?, ?, ? and ? thereof being in the relationship of 0.5??<8, 5???23, 17???38, 32???73, ???, and ?+?+?+?=100, and a method of producing the above sputtering target is provided.Type: GrantFiled: September 25, 2003Date of Patent: October 30, 2007Assignee: Ricoh Company, Ltd.Inventors: Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Katsuyuki Yamada, Michiaki Shinotsuka, Makoto Harigaya, Hiroshi Deguchi
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Publication number: 20060256706Abstract: An optical recording medium has a phase-change recording layer containing Sb and Te as essential elements therefor, to which is added at least one element selected from the group consisting of Ag, Au, Cu, Zn, B, Al, Ga, In, Si, Ge, Sn, Pb, N, P, Bi, La, Ce, Gd, and Tb, the recording layer being capable of assuming an amorphous phase changed from a crystalline phase by the application of a laser beam thereto, thereby optically recording information. Recording marks are formed in the recording medium by converting a light emission wave of laser beam into a recording pulse train comprising a plurality of on-pulses and off-pulses, with a recording frequency being continuously changed corresponding to the location of each of the recording marks in the radial direction of said recording medium. A recording apparatus has laser beam driving circuit means, signal generation means, and signal transmission means for achieving the above recording method.Type: ApplicationFiled: July 21, 2006Publication date: November 16, 2006Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
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Patent number: 7102977Abstract: An optical recording medium has a phase-change recording layer containing Sb and Te as essential elements therefor, to which is added at least one element selected from the group consisting of Ag, Au, Cu, Zn, B, Al, Ga, In, Si, Ge, Sn, Pb, N, P, Bi, La, Ce, Gd, and Tb, the recording layer being capable of assuming an amorphous phase changed from a crystalline phase by the application of a laser beam thereto, thereby optically recording information. Recording marks are formed in the recording medium by converting a light emission wave of laser beam into a recording pulse train comprising a plurality of on-pulses and off-pulses, with a recording frequency being continuously changed corresponding to the location of each of the recording marks in the radial direction of said recording medium. A recording apparatus has laser beam driving circuit means, signal generation means, and signal transmission means for achieving the above recording method.Type: GrantFiled: March 28, 2005Date of Patent: September 5, 2006Assignee: Ricoh Company, Ltd.Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
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Patent number: 7068591Abstract: An information recording method including irradiating a phase change recording layer of an optical recording medium with either a multi-pulse laser light train having a recording power of Pw or laser light having an erasing power Pe to record a mark having a length nT in the recording layer, wherein n is an integer of from 3 to 14 and T represents a clock cycle, wherein the multi-pulse laser light train has a constitution such that a heating pulse and a cooling pulse are alternated and the number of heating pulses and the number of cooling pulses each increases by 1 when n increases by 2, and wherein when n is from 6 to 14, the last heating pulse and last cooling pulse have a pulse width of from 0.5T to 0.9T and from 0.7T to 1.5T, respectively.Type: GrantFiled: July 7, 2005Date of Patent: June 27, 2006Assignee: Ricoh Company, Ltd.Inventors: Hiroko Ohkura, Yoshiyuki Kageyama, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura, Miku Mizutani
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Publication number: 20050265133Abstract: An information recording method including irradiating a phase change recording layer of an optical recording medium with either a multi-pulse laser light train having a recording power of Pw or laser light having an erasing power Pe to record a mark having a length nT in the recording layer, wherein n is an integer of from 3 to 14 and T represents a clock cycle, wherein the multi-pulse laser light train has a constitution such that a heating pulse and a cooling pulse are alternated and the number of heating pulses and the number of cooling pulses each increases by 1 when n increases by 2, and wherein when n is from 6 to 14, the last heating pulse and last cooling pulse have a pulse width of from 0.5T to 0.9T and from 0.7T to 1.5T, respectively.Type: ApplicationFiled: July 7, 2005Publication date: December 1, 2005Inventors: Hiroko Ohkura, Yoshiyuki Kageyama, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura, Miku Mizutani
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Patent number: 6963527Abstract: An information recording method including irradiating a phase change recording layer of an optical recording medium with either a multi-pulse laser light train having a recording power of Pw or laser light having an erasing power Pe to record a mark having a length nT in the recording layer, wherein n is an integer of from 3 to 14 and T represents a clock cycle, wherein the multi-pulse laser light train has a constitution such that a heating pulse and a cooling pulse are alternated and the number of heating pulses and the number of cooling pulses each increases by 1 when n increases by 2, and wherein when n is from 6 to 14, the last heating pulse and last cooling pulse have a pulse width of from 0.5T to 0.9T and from 0.7T to 1.5T, respectively.Type: GrantFiled: January 28, 2003Date of Patent: November 8, 2005Assignee: Ricoh Company, Ltd.Inventors: Hiroko Ohkura, Yoshiyuki Kageyama, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura, Miku Mizutani
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Publication number: 20050169149Abstract: An optical recording medium has a phase-change recording layer containing Sb and Te as essential elements therefor, to which is added at least one element selected from the group consisting of Ag, Au, Cu, Zn, B, Al, Ga, In, Si, Ge, Sn, Pb, N, P, Bi, La, Ce, Gd, and Tb, the recording layer being capable of assuming an amorphous phase changed from a crystalline phase by the application of a laser beam thereto, thereby optically recording information. Recording marks are formed in the recording medium by converting a light emission wave of laser beam into a recording pulse train comprising a plurality of on-pulses and off-pulses, with a recording frequency being continuously changed corresponding to the location of each of the recording marks in the radial direction of said recording medium. A recording apparatus has laser beam driving circuit means, signal generation means, and signal transmission means for achieving the above recording method.Type: ApplicationFiled: March 28, 2005Publication date: August 4, 2005Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
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Patent number: 6884488Abstract: An optical recording medium has a phase-change recording layer containing Sb and Te as essential elements therefor, to which is added at least one element selected from the group consisting of Ag, Au, Cu, Zn, B, Al, Ga, In, Si, Ge, Sn, Pb, N, P, Bi, La, Ce, Gd, and Tb, the recording layer being capable of assuming an amorphous phase changed from a crystalline phase by the application of a laser beam thereto, thereby optically recording information. Recording marks are formed in the recording medium by converting a light emission wave of laser beam into a recording pulse train comprising a plurality of on-pulses and off-pulses, with a recording frequency being continuously changed corresponding to the location of each of the recording marks in the radial direction of said recording medium. A recording apparatus has laser beam driving circuit means, signal generation means, and signal transmission means for achieving the above recording method.Type: GrantFiled: May 12, 2004Date of Patent: April 26, 2005Assignee: Ricoh Company, LimitedInventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
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Publication number: 20040209036Abstract: An optical recording medium has a phase-change recording layer containing Sb and Te as essential elements therefor, to which is added at least one element selected from the group consisting of Ag, Au, Cu, Zn, B, Al, Ga, In, Si, Ge, Sn, Pb, N, P, Bi, La, Ce, Gd, and Tb, the recording layer being capable of assuming an amorphous phase changed from a crystalline phase by the application of a laser beam thereto, thereby optically recording information. Recording marks are formed in the recording medium by converting a light emission wave of laser beam into a recording pulse train comprising a plurality of on-pulses and off-pulses, with a recording frequency being continuously changed corresponding to the location of each of the recording marks in the radial direction of said recording medium. A recording apparatus has laser beam driving circuit means, signal generation means, and signal transmission means for achieving the above recording method.Type: ApplicationFiled: May 12, 2004Publication date: October 21, 2004Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama