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).

  • Publication number: 20200200371
    Abstract: 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: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Yoshiyuki KAGEYAMA, Kimihiro MIYAMOTO, Takashi TANI
  • Publication number: 20200203589
    Abstract: 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: Application
    Filed: December 23, 2019
    Publication date: June 25, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Takashi MATSUMOTO, Naoki HARADA, Fukutaro SAEGUSA, Yoshiyuki KAGEYAMA
  • Patent number: 7366075
    Abstract: 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: Grant
    Filed: July 21, 2006
    Date of Patent: April 29, 2008
    Assignee: Ricoh Company, ltd.
    Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
  • Patent number: 7288224
    Abstract: 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: Grant
    Filed: September 25, 2003
    Date of Patent: October 30, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Katsuyuki Yamada, Michiaki Shinotsuka, Makoto Harigaya, Hiroshi Deguchi
  • Publication number: 20060256706
    Abstract: 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: Application
    Filed: July 21, 2006
    Publication date: November 16, 2006
    Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
  • Patent number: 7102977
    Abstract: 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: Grant
    Filed: March 28, 2005
    Date of Patent: September 5, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
  • Patent number: 7068591
    Abstract: 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: Grant
    Filed: July 7, 2005
    Date of Patent: June 27, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroko Ohkura, Yoshiyuki Kageyama, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura, Miku Mizutani
  • Publication number: 20050265133
    Abstract: 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: Application
    Filed: July 7, 2005
    Publication date: December 1, 2005
    Inventors: Hiroko Ohkura, Yoshiyuki Kageyama, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura, Miku Mizutani
  • Patent number: 6963527
    Abstract: 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: Grant
    Filed: January 28, 2003
    Date of Patent: November 8, 2005
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroko Ohkura, Yoshiyuki Kageyama, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura, Miku Mizutani
  • Publication number: 20050169149
    Abstract: 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: Application
    Filed: March 28, 2005
    Publication date: August 4, 2005
    Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
  • Patent number: 6884488
    Abstract: 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: Grant
    Filed: May 12, 2004
    Date of Patent: April 26, 2005
    Assignee: Ricoh Company, Limited
    Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
  • Publication number: 20040209036
    Abstract: 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: Application
    Filed: May 12, 2004
    Publication date: October 21, 2004
    Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
  • Patent number: 6790592
    Abstract: A phase-change optical information recording medium capable of recording information therein, reproducing recorded information therefrom, rewriting recorded information, and erasing recorded information therefrom, which phase-change optical information recording medium is provided with a recording layer containing therein a phase-change recording material including Ge, Ga, Sb, Te, and one element selected from the group consisting of Mg and Ca, which recording material is capable of performing a reversible phase transition from a noncrystalline phase to a crystalline phase and vice verse with the application of an electromagnetic wave thereto.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: September 14, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Makoto Harigaya, Katsuhiko Tani, Noriyuki Iwata, Kazunori Ito, Hajime Yuzurihara, Eiko Hibino, Hiroko Ohkura, Nobuaki Onagi, Hiroshi Miura, Yoshiyuki Kageyama
  • Patent number: 6777057
    Abstract: 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: Grant
    Filed: February 7, 2003
    Date of Patent: August 17, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
  • Patent number: 6770346
    Abstract: An optical recording medium comprising a recording layer which comprises a phase-change recording material causing a reversible phase change between a crystalline phase and an amorphous phase by irradiation with an electromagnetic wave, wherein the phase-change recording material mainly comprises materials expressed by the composition formula X&agr;Ge&bgr;Mn&ggr;Sb&dgr;Te&egr; with each of the components respectively fulfills 0≦&agr;≦5, 1≦&bgr;≦5, 1≦&ggr;≦10, 65 ≦&dgr;<80, 15≦&egr;≦25, and &agr;≦&ggr; (where X expresses at least one of Ga and Sn, &agr;, &bgr;, &ggr;, &dgr;, and &egr; expresses atomic percentage, and fulfills &agr;+&bgr;+&ggr;+&dgr;+&egr;=100).
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: August 3, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Makoto Harigaya, Hiroshi Miura, Hiroko Okura, Miku Mizutani, Eiko Hibino, Hajime Yuzurihara, Yoshiyuki Kageyama, Mikiko Abe, Hiroshi Deguchi, Kazunori Ito
  • Publication number: 20040058542
    Abstract: A sputtering target contains a target material including as constituent elements Ag, In, Te and Sb with the respective atomic percents (atom. %) of &agr;, &bgr;, &ggr; and &dgr; thereof being in the relationship of 0.5≦&agr;<8, 5 ≦&bgr;≦23, 17 ≦&ggr;≦38, 32≦&dgr;≦73, &agr;≦&bgr;, and &agr;+&bgr;+&ggr;+&dgr;=100, and a method of producing the above sputtering target is provided. An optical recording medium includes a recording layer containing a phase-change recording material which includes as constituent elements Ag, In, Te and Sb with the respective atomic percents of &agr;, &bgr;, &ggr; and &dgr; thereof being in the relationship of 1≦&agr;<6, 7≦&bgr;≦20, 20≦&ggr;≦35, 35≦&dgr;≦70, and &agr;+&bgr;+&ggr;+&dgr;=100, and is capable of recording and erasing information by utilizing the phase change of the recording material in the recording layer.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 25, 2004
    Inventors: Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Katsuyuki Yamada, Michiaki Shinotsuka, Makoto Harigaya, Hiroshi Deguchi
  • Patent number: 6652806
    Abstract: A sputtering target contains a target material including as constituent elements Ag, In, Te and Sb with the respective atomic percents (atom. %) of &agr;, &bgr;, &ggr; and &dgr; thereof being in the relationship of 0.5≦&agr;<8, 5≦&bgr;≦23, 17≦&ggr;≦38, 32≦&dgr;≦73, &agr;≦&bgr;, and &agr;+&bgr;+&ggr;+&dgr;=100, and a method of producing the above sputtering target is provided. An optical recording medium includes a recording layer containing a phase-change recording material which includes as constituent elements Ag, In, Te and Sb with the respective atomic percents of &agr;, &bgr;, &ggr; and &dgr; thereof being in the relationship of 1≦&agr;<6, 7≦&bgr;≦20, 20≦&ggr;≦35, 35≦&dgr;≦70, and &agr;+&bgr;+&ggr;+&dgr;=100, and is capable of recording and erasing information by utilizing the phase change of the recording material in the recording layer.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: November 25, 2003
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Katsuyuki Yamada, Michiaki Shinotsuka, Makoto Harigaya, Hiroshi Deguchi
  • Publication number: 20030152006
    Abstract: 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: Application
    Filed: January 28, 2003
    Publication date: August 14, 2003
    Inventors: Hiroko Ohkura, Yoshiyuki Kageyama, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura, Miku Mizutani
  • Publication number: 20030124298
    Abstract: 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: Application
    Filed: February 7, 2003
    Publication date: July 3, 2003
    Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama
  • Patent number: 6548137
    Abstract: 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, Cd, 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: Grant
    Filed: May 11, 2000
    Date of Patent: April 15, 2003
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi, Hiroko Tashiro, Yoshiyuki Kageyama