Patents by Inventor Katsushi Seki
Katsushi Seki 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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Patent number: 9890933Abstract: A holder included in a plurality of holders which fix, to a base, a light-emitting module to be placed on the base, by being attached to the base, includes: a contact terminal to be electrically connected to the light-emitting module; and a holding component which holds the light-emitting module in a cantilever-style when the holder is unattached to the base.Type: GrantFiled: August 17, 2015Date of Patent: February 13, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akihiro Hirano, Ryusuke Kotera, Katsushi Seki, Youji Tachino, Satoshi Fukano
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Patent number: 9683726Abstract: A lamp that emits light and includes: a mounting board on which a light-emitting element is provided; a support disposed on a side opposite a light-emission-side of the mounting board; and a case connected to a support. The case includes a securing part which is disposed on the light-emission-side of the mounting board, and secures the mounting board to the support by sandwiching the mounting board between the securing part and the support.Type: GrantFiled: March 28, 2013Date of Patent: June 20, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Katsushi Seki
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Patent number: 9441821Abstract: An LED unit which serves as an illumination light source includes: a light-emitting element; a circuit board provided in a drive circuit which drives the light-emitting element; a lead wire electrically connecting the light-emitting element and the drive circuit; and a case including a first opening which is an elongated opening into which the lead wire is inserted. The circuit board includes a second opening which is an elongated opening into which the lead wire is inserted, and the first opening and the second opening are disposed so that a straight line extending in a lengthwise direction of the first opening and a straight line extending in a lengthwise direction of the second opening three-dimensionally cross each other.Type: GrantFiled: January 16, 2014Date of Patent: September 13, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Nozomu Hashimoto, Toshio Mori, Katsushi Seki, Youji Tachino, Yukiya Kanazawa
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Patent number: 9380667Abstract: An illumination device includes a main light source block having a plurality of main light sources and a plurality of current limiters, and an auxiliary light source block having an auxiliary light source and a constant-current unit. A series circuit of the auxiliary light source and the constant-current unit is electrically connected in parallel with the main light source block, between first and second output terminals of a rectifier. A smoothing capacitor is electrically connected in parallel with a specific main light source among the plurality of main light sources. The specific main light source and a corresponding current limiter are electrically connected in parallel with the series circuit of the auxiliary light source and the constant-current unit.Type: GrantFiled: June 18, 2015Date of Patent: June 28, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shigeru Ido, Hiroshi Kido, Akinori Hiramatu, Takeshi Kamoi, Katsushi Seki, Daisuke Yamahara, Daisuke Ueda
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Patent number: 9374864Abstract: A controller circuit is configured to adjust the number of light-emitting diodes that a current flows from a rectifier circuit through so that: the number of light-emitting diodes, which are lit, of the plurality of light-emitting diodes increases according to a value of a pulsating voltage during a time period that the value of the pulsating voltage increases; and the number of light-emitting diodes, which are lit, of the plurality of light-emitting diodes decreases according to the value of the pulsating voltage during a time period that the value of the pulsating voltage decreases. Light-emitting diodes, which start to emit light by a higher voltage value, of the plurality of light-emitting diodes are disposed at a position nearer to an outside of a mounting region of a substrate than light-emitting diodes, which start to emit light by a lower voltage value, of the plurality of light-emitting diodes.Type: GrantFiled: June 9, 2015Date of Patent: June 21, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Takeshi Kamoi, Akinori Hiramatu, Hiroshi Kido, Katsushi Seki, Shigeru Ido, Daisuke Yamahara, Daisuke Ueda
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Patent number: 9374865Abstract: A lighting device includes a rectifier, a constant current regulator and a charge-discharge circuit. The constant current regulator is electrically connected in series with first and second solid-state light-emitting element arrays between a pair of output terminals of the rectifier. The constant current regulator is configured to adjust a current flowing through the second solid-state light-emitting element array to a constant current. The charge-discharge circuit is electrically connected in series with the first solid-state light-emitting element array between the pair of output terminals of the rectifier. The charge-discharge circuit includes a charge storage element, and is configured so that a charge current flows to the charge storage element through the first solid-state light-emitting element array, and so that a discharge current flows from the charge storage element to the second solid-state light-emitting element array.Type: GrantFiled: July 10, 2015Date of Patent: June 21, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Daisuke Yamahara, Takeshi Kamoi, Hiroshi Kido, Akinori Hiramatu, Katsushi Seki, Daisuke Ueda, Shigeru Ido
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Patent number: 9303851Abstract: An LED unit which serves as an illumination light source includes: a mounting board on which a light-emitting element, which emits light frontward, is provided; a support disposed behind the mounting board; and a case disposed so that the mounting board is sandwiched in a longitudinal direction by the case and the support. The case includes a restricting portion which restricts sideward movement of the mounting board.Type: GrantFiled: January 16, 2014Date of Patent: April 5, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Youji Tachino, Katsushi Seki, Toshio Mori, Nozomu Hashimoto, Yukiya Kanazawa
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Publication number: 20160076744Abstract: A holder included in a plurality of holders which fix, to a base, a light-emitting module to be placed on the base, by being attached to the base, includes: a contact terminal to be electrically connected to the light-emitting module; and a holding component which holds the light-emitting module in a cantilever-style when the holder is unattached to the base.Type: ApplicationFiled: August 17, 2015Publication date: March 17, 2016Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akihiro HIRANO, Ryusuke KOTERA, Katsushi SEKI, Youji TACHINO, Satoshi FUKANO
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Publication number: 20160037594Abstract: A lighting device includes a rectifier, a constant current regulator and a charge-discharge circuit. The constant current regulator is electrically connected in series with first and second solid-state light-emitting element arrays between a pair of output terminals of the rectifier. The constant current regulator is configured to adjust a current flowing through the second solid-state light-emitting element array to a constant current. The charge-discharge circuit is electrically connected in series with the first solid-state light-emitting element array between the pair of output terminals of the rectifier. The charge-discharge circuit includes a charge storage element, and is configured so that a charge current flows to the charge storage element through the first solid-state light-emitting element array, and so that a discharge current flows from the charge storage element to the second solid-state light-emitting element array.Type: ApplicationFiled: July 10, 2015Publication date: February 4, 2016Inventors: Daisuke YAMAHARA, Takeshi KAMOI, Hiroshi KIDO, Akinori HIRAMATU, Katsushi SEKI, Daisuke UEDA, Shigeru IDO
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Publication number: 20160037593Abstract: An illumination device includes a main light source block having a plurality of main light sources and a plurality of current limiters, and an auxiliary light source block having an auxiliary light source and a constant-current unit. A series circuit of the auxiliary light source and the constant-current unit is electrically connected in parallel with the main light source block, between first and second output terminals of a rectifier. A smoothing capacitor is electrically connected in parallel with a specific main light source among the plurality of main light sources. The specific main light source and a corresponding current limiter are electrically connected in parallel with the series circuit of the auxiliary light source and the constant-current unit.Type: ApplicationFiled: June 18, 2015Publication date: February 4, 2016Inventors: Shigeru IDO, Hiroshi KIDO, Akinori HIRAMATU, Takeshi KAMOI, Katsushi SEKI, Daisuke YAMAHARA, Daisuke UEDA
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Publication number: 20160029444Abstract: A controller circuit is configured to adjust the number of light-emitting diodes that a current flows from a rectifier circuit through so that: the number of light-emitting diodes, which are lit, of the plurality of light-emitting diodes increases according to a value of a pulsating voltage during a time period that the value of the pulsating voltage increases; and the number of light-emitting diodes, which are lit, of the plurality of light-emitting diodes decreases according to the value of the pulsating voltage during a time period that the value of the pulsating voltage decreases. Light-emitting diodes, which start to emit light by a higher voltage value, of the plurality of light-emitting diodes are disposed at a position nearer to an outside of a mounting region of a substrate than light-emitting diodes, which start to emit light by a lower voltage value, of the plurality of light-emitting diodes.Type: ApplicationFiled: June 9, 2015Publication date: January 28, 2016Inventors: Takeshi KAMOI, Akinori HIRAMATU, Hiroshi KIDO, Katsushi SEKI, Shigeru IDO, Daisuke YAMAHARA, Daisuke UEDA
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Patent number: 9039257Abstract: A lighting device pertaining to one aspect of the present invention includes a mount, a light-emitting module, and a substrate holder. The light-emitting module is mounted on a main surface of the mount, and the substrate holder covers a portion of the light-emitting module and is connected with the mount. The light-emitting module includes a substrate, a plurality of light-emitting elements, a sealant and a padding. The padding is provided on a first main surface of the substrate. The light-emitting module is mounted on the main surface of the mount such that a second main surface of the substrate comes into contact with the main surface of the mount, and the light-emitting module is fixed to the mount by pressure applied from the substrate holder via the padding brought into contact with the substrate holder. The padding is made of a same material as the sealant.Type: GrantFiled: December 17, 2013Date of Patent: May 26, 2015Assignee: PANASONIC INTELECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Koji Noro, Katsushi Seki, Ryusuke Kotera, Youji Tachino, Satoshi Fukano, Akihiro Hirano
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Publication number: 20150103528Abstract: A lamp that emits light and includes: a mounting board on which a light-emitting element is provided; a support disposed on a side opposite a light-emission-side of the mounting board; and a case connected to a support. The case includes a securing part which is disposed on the light-emission-side of the mounting board, and secures the mounting board to the support by sandwiching the mounting board between the securing part and the support.Type: ApplicationFiled: March 28, 2013Publication date: April 16, 2015Inventor: Katsushi Seki
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Publication number: 20150085495Abstract: A lamp including: a reflecting mirror; a case inside which the reflecting mirror is entirely or partially disposed, and which has an opening formed therein; and a light-transmissive cover covering the opening of the case. The reflecting mirror includes a case-side reflecting mirror connecting part for connecting with the case, and the case includes a mirror-side case connecting part which connects with the case-side reflecting mirror connecting part. The case further includes a cover-side case connecting part for connecting with the light-transmissive cover, and the light-transmissive cover includes a case-side cover connecting part which connects with the cover-side case connecting part. The light-transmissive cover further includes a mirror-side cover connecting part for connecting with the reflecting mirror, and the reflecting mirror further includes a cover-side reflecting mirror connecting part which connects with the mirror-side cover connecting part.Type: ApplicationFiled: March 28, 2013Publication date: March 26, 2015Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENTInventor: Katsushi Seki
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Patent number: 8950890Abstract: A lamp according to the present invention includes: a line portion which blocks a part of light proceeding from a light emitting unit in a direction perpendicular to a tube axis direction; and a raised portion which blocks the light proceeding from the light emitting unit in the direction perpendicular to the tube axis direction that is not blocked by the line portion. The raised portion has an end portion having a linear shape in the tube axis direction, the end portion being an end portion of a section of the raised portion that blocks light.Type: GrantFiled: October 19, 2011Date of Patent: February 10, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Katsushi Seki, Toshifumi Ogata, Makoto Morikawa, Shinichi Kitaoka, Kenji Maruyama
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Publication number: 20140204562Abstract: An LED unit which serves as an illumination light source that is attached to lighting equipment includes: a light-emitting element; a circuit board provided in a drive circuit which drives the light-emitting element; a case inside of which the circuit board is disposed; and a connecting component at least a portion of which is disposed inside the case, for electrically connecting the lighting equipment and the drive circuit. The case includes a positioning portion which determines a position of the circuit board, and the circuit board includes an opening into which the connecting component is inserted, and which determines the position of the circuit board by way of the rim of the opening abutting the positioning portion.Type: ApplicationFiled: January 16, 2014Publication date: July 24, 2014Applicant: PANASONIC CORPORATIONInventors: Toshio MORI, Katsushi SEKI, Youji TACHINO, Nozomu HASHIMOTO, Yukiya KANAZAWA
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Publication number: 20140204561Abstract: An LED unit which serves as an illumination light source includes: a light-emitting element; a circuit board provided in a drive circuit which drives the light-emitting element; a lead wire electrically connecting the light-emitting element and the drive circuit; and a case including a first opening which is an elongated opening into which the lead wire is inserted. The circuit board includes a second opening which is an elongated opening into which the lead wire is inserted, and the first opening and the second opening are disposed so that a straight line extending in a lengthwise direction of the first opening and a straight line extending in a lengthwise direction of the second opening three-dimensionally cross each other.Type: ApplicationFiled: January 16, 2014Publication date: July 24, 2014Applicant: PANASONIC CORPORATIONInventors: Nozomu HASHIMOTO, Toshio MORI, Katsushi SEKI, Youji TACHINO, Yukiya KANAZAWA
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Publication number: 20140204560Abstract: An LED unit which serves as an illumination light source includes: a mounting board on which a light-emitting element, which emits light frontward, is provided; a support disposed behind the mounting board; and a case disposed so that the mounting board is sandwiched in a longitudinal direction by the case and the support. The case includes a restricting portion which restricts sideward movement of the mounting board.Type: ApplicationFiled: January 16, 2014Publication date: July 24, 2014Applicant: PANASONIC CORPORATIONInventors: Youji TACHINO, Katsushi SEKI, Toshio MORI, Nozomu HASHIMOTO, Yukiya KANAZAWA
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Publication number: 20140204594Abstract: An illumination light source which attaches to a lighting fixture by being rotated in a predetermined rotational direction R, the illumination light source including: a light-emitting unit (LED module), a case which includes a first opening and houses the light-emitting unit; and a translucent cover provided over the first opening, wherein the translucent cover includes a plurality of projecting portions provided at predetermined intervals in the rotational direction R, and the plurality of projecting portions each include a plurality of projections provided at a predetermined distance from each other in the rotational direction R and including a flat surface facing a direction opposite the rotational direction R.Type: ApplicationFiled: January 17, 2014Publication date: July 24, 2014Applicant: PANASONIC CORPORATIONInventors: Yukiya KANAZAWA, Katsushi SEKI, Youji TACHINO, Toshio MORI, Nozomu HASHIMOTO, Ryuya MIWA, Kayo NOJIRI
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Publication number: 20140177240Abstract: A lighting device pertaining to one aspect of the present invention includes a mount, a light-emitting module, and a substrate holder. The light-emitting module is mounted on a main surface of the mount, and the substrate holder covers a portion of the light-emitting module and is connected with the mount. The light-emitting module includes a substrate, a plurality of light-emitting elements, a sealant and a padding. The padding is provided on a first main surface of the substrate. The light-emitting module is mounted on the main surface of the mount such that a second main surface of the substrate comes into contact with the main surface of the mount, and the light-emitting module is fixed to the mount by pressure applied from the substrate holder via the padding brought into contact with the substrate holder. The padding is made of a same material as the sealant.Type: ApplicationFiled: December 17, 2013Publication date: June 26, 2014Applicant: PANASONIC CORPORATIONInventors: Koji NORO, Katsushi SEKI, Ryusuke KOTERA, Youji TACHINO, Satoshi FUKANO, Akihiro HIRANO