Patents by Inventor Toshimasa Hayashi
Toshimasa Hayashi 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: 9343618Abstract: A method of manufacturing a light-emitting device includes providing a case including an annular sidewall and an LED chip including a chip substrate and a crystal layer and mounted in a region surrounded by the sidewall of the case, and dripping a droplet of an electrically-charged phosphor-containing resin so as to fill a space between the sidewall and the LED chip. The droplet is attracted toward the sidewall by an electrostatic force during the dripping.Type: GrantFiled: February 12, 2014Date of Patent: May 17, 2016Assignee: TOYODA GOSEI CO., LTD.Inventors: Takashi Nonogawa, Takashi Terayama, Toshimasa Hayashi
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Patent number: 9299902Abstract: A light emitting device includes a double-sided electrode type semiconductor light emitting element that has a first electrode formed on a front side of the double-sided type semiconductor light emitting element and a second electrode formed on a rear side of the double sided type semiconductor light emitting element and is configured to emit light from a side wall surface of the double-sided electrode type semiconductor light emitting element, a first lead frame that is bonded to a whole area of one face of the first electrode, a second lead frame that is bonded to a whole area of one face of the second electrode, and a case in which a portion of the first lead frame and a portion of the second lead frame is embedded.Type: GrantFiled: October 6, 2014Date of Patent: March 29, 2016Assignee: TOYODA GOSEI CO., LTD.Inventors: Satoshi Wada, Koichi Goshonoo, Toshimasa Hayashi
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Publication number: 20150364657Abstract: A method of manufacturing a light-emitting device includes providing an LED chip mounted on a base substrate, and dripping a droplet of a phosphor-containing resin to cover the LED chip. The droplet is dot-printed on the base substrate and/or the LED chip by inkjet printing.Type: ApplicationFiled: May 28, 2015Publication date: December 17, 2015Inventors: Takashi NONOGAWA, Masakata KOSEKI, Kosei FUKUI, Toshimasa HAYASHI
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Patent number: 9184354Abstract: A light-emitting device includes a plurality of LED chips arranged in series and each including a chip substrate and a crystal layer including a light-emitting layer. One of the plurality of LED chips is configured such that the chip substrate thereof includes a side surface facing another adjacent LED chip of the plurality of LED chips. The side surface has a highest cleavability among all side surfaces of the chip substrate of the one of the plurality of LED chips.Type: GrantFiled: January 30, 2014Date of Patent: November 10, 2015Assignee: TOYODA GOSEI CO., LTD.Inventors: Kosei Fukui, Toshimasa Hayashi, Takashi Nonogawa, Takashi Terayama, Satoshi Wada
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Patent number: 9065023Abstract: The present invention provides a light emitting device, which includes a light emitting diode (LED) chip, a wavelength conversion plate including a fluorescent substance and disposed on a light output surface side of the LED chip, and a sub heat radiation path formed to radiate heat of the wavelength conversion plate. The sub heat radiation path includes a transparent heat-conductive film provided on a surface of the wavelength conversion plate, a heat radiator provided in the vicinity of the LED chip, and a thermal connection member that thermally connects the transparent heat-conductive film to the heat radiator.Type: GrantFiled: December 16, 2013Date of Patent: June 23, 2015Assignee: Toyoda Gosei, Co., Ltd.Inventors: Satoshi Wada, Kosei Fukui, Toshimasa Hayashi, Takashi Nonogawa
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Publication number: 20150097195Abstract: A light emitting device includes a double-sided electrode type semiconductor light emitting element that has a first electrode formed on a front side of the double-sided type semiconductor light emitting element and a second electrode formed on a rear side of the double sided type semiconductor light emitting element and is configured to emit light from a side wall surface of the double-sided electrode type semiconductor light emitting element, a first lead frame that is bonded to a whole area of one face of the first electrode, a second lead frame that is bonded to a whole area of one face of the second electrode, and a case in which a portion of the first lead frame and a portion of the second lead frame is embedded,Type: ApplicationFiled: October 6, 2014Publication date: April 9, 2015Inventors: Satoshi WADA, Koichi GOSHONOO, Toshimasa HAYASHI
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Publication number: 20150054018Abstract: A light-emitting device includes a case including a recessed portion, a lead frame that is housed in the case so as to be exposed in a bottom portion of the recessed portion and includes a first region, a second region and a third region arranged sandwiched between the first and second regions, a light-emitting element mounted in the first region and electrically connected to the third region via a first wire, and a hold-down member covering both ends in a width direction of an upper surface of the third region so as to hold down the third region from above. One end in a longitudinal direction of the third region protrudes outside of the case. The hold-down member is formed so as to contact with an inner surface of a sidewall of the recessed portion at an other end in the longitudinal direction of the third region.Type: ApplicationFiled: May 29, 2014Publication date: February 26, 2015Applicant: TOYODA GOSEI CO., LTD.Inventors: Yukiko Yabuta, Yoshinori Masatsugu, Toshimasa Hayashi
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Publication number: 20140295591Abstract: A method of manufacturing a light-emitting device includes providing a case including an annular sidewall and an LED chip including a chip substrate and a crystal layer and mounted in a region surrounded by the sidewall of the case, and dripping a droplet of an electrically-charged phosphor-containing resin so as to fill a space between the sidewall and the LED chip. The droplet is attracted toward the sidewall by an electrostatic force during the dripping.Type: ApplicationFiled: February 12, 2014Publication date: October 2, 2014Applicant: TOYODA GOSEI CO., LTD.Inventors: Takashi NONOGAWA, Takashi TERAYAMA, Toshimasa HAYASHI
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Publication number: 20140231821Abstract: A light-emitting device includes a plurality of LED chips arranged in series and each including a chip substrate and a crystal layer including a light-emitting layer. One of the plurality of LED chips is configured such that the chip substrate thereof includes a side surface facing another adjacent LED chip of the plurality of LED chips. The side surface has a highest cleavability among all side surfaces of the chip substrate of the one of the plurality of LED chips.Type: ApplicationFiled: January 30, 2014Publication date: August 21, 2014Applicant: TOYODA GOSEI CO., LTD.Inventors: Kosei FUKUI, Toshimasa HAYASHI, Takashi NONOGAWA, Takashi TERAYAMA, Satoshi WADA
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Publication number: 20140167087Abstract: The present invention provides a light emitting device, which includes a light emitting diode (LED) chip, a wavelength conversion plate including a fluorescent substance and disposed on a light output surface side of the LED chip, and a sub heat radiation path formed to radiate heat of the wavelength conversion plate. The sub heat radiation path includes a transparent heat-conductive film provided on a surface of the wavelength conversion plate, a heat radiator provided in the vicinity of the LED chip, and a thermal connection member that thermally connects the transparent heat-conductive film to the heat radiator.Type: ApplicationFiled: December 16, 2013Publication date: June 19, 2014Applicant: Toyoda Gosei Co., Ltd.Inventors: Satoshi Wada, Kosei Fukui, Toshimasa Hayashi, Takashi Nonogawa
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Patent number: 8698187Abstract: A light emitting device comprises a case having a space therein, the space defined by an inner bottom surface and an inner side surface of the case, a lead frame housed in the space, and having a bending portion bent along the inner side surface of the case, and a light emitting element electrically connected to the lead frame, wherein a rear surface of the bending portion is embedded in the case and a front surface of the bending portion is exposed from the inner side surface of the case so as to oppose the light emitting element, and wherein a projecting portion projected from the inner bottom surface and inclined to the inner side surface of the case is formed on the inner side surface of the case.Type: GrantFiled: September 28, 2011Date of Patent: April 15, 2014Assignee: Toyoda Gosei Co., Ltd.Inventors: Hideki Kokubu, Kosei Fukui, Toshimasa Hayashi
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Publication number: 20140087498Abstract: A method of manufacturing a light-emitting device includes mounting an LED chip on a bottom surface of a recessed portion of a case, and after mounting the LED chip, forming a highly-reflective sidewall so as to be in contact with side surfaces and the bottom surface of the recessed portion and to be spaced from the LED chip. The highly-reflective sidewall includes a higher light reflectance than the side surfaces of the recessed position of the case and an outwardly convex surface as a surface exposed in the recessed portion.Type: ApplicationFiled: September 19, 2013Publication date: March 27, 2014Applicant: Toyoda Gosei Co., Ltd.Inventors: Takashi TERAYAMA, Akira Kojima, Toshimasa Hayashi, Seiji Yamaguchi, Hiroyuki Tajima, Shota Shimonishi, Yukihiro Demukai
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Patent number: 8643271Abstract: The present invention provides a LED lamp module including a metal base, a flexible board mounted on the metal base and having a through hole, a surface mounted type LED lamp including a ceramic package having a projection portion on a back of the ceramic package, a LED chip mounted on the ceramic package, and a light output surface. The projection part is thermally connected with the metal base through the through hole, and the LED lamp is electrically connected with the flexible board through an electric conductive member at a portion other than the projection portion. The LED lamp module includes a cover covering a part of the LED lamp other than the light output surface and the flexible board and pressing the LED lamp.Type: GrantFiled: February 5, 2009Date of Patent: February 4, 2014Assignee: Toyoda Gosei Co., Ltd.Inventors: Shota Shimonishi, Hiroyuki Tajima, Toshimasa Hayashi, Hideki Kokubu
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Publication number: 20130003381Abstract: A light emitting device comprises two or more light emitting elements, two or more lead frames electrically connected to the light emitting elements, and a case formed as a slender flat box shape and having an accommodating recession for accommodating the light emitting elements and the lead frame, wherein the lead frames are buried in the case and provided side by side in a longitudinal direction of the case, and the surfaces of the lead frames are arranged coplanar, the light emitting elements are mounted on the lead frames, and the plurality of lead frames and the case are arranged in a nearly linear symmetric configuration with respect to a central line that bisects the light emitting device in the longitudinal direction, so that no uneven heat distribution takes place.Type: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicant: Toyoda Gosei Co., Ltd.Inventors: Hideki KOKUBU, Kosei Fukui, Toshimasa Hayashi, Yukihiro Demukai
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Publication number: 20120080711Abstract: A light emitting device comprises a case having a space therein, the space defined by an inner bottom surface and an inner side surface of the case, a lead frame housed in the space, and having a bending portion bent along the inner side surface of the case, and a light emitting element electrically connected to the lead frame, wherein a rear surface of the bending portion is embedded in the case and a front surface of the bending portion is exposed from the inner side surface of the case so as to oppose the light emitting element, and wherein a projecting portion projected from the inner bottom surface and inclined to the inner side surface of the case is formed on the inner side surface of the case.Type: ApplicationFiled: September 28, 2011Publication date: April 5, 2012Applicant: TOYODA GOSEI CO., LTD.Inventors: Hideki Kokubu, Kosei Fukui, Toshimasa Hayashi
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Patent number: 8138661Abstract: In a side surface light emitting type light emitting device mounted on the surface of a wiring board, the light emitting device comprises: a base body part having a reflecting case and a terminal holding part formed integrally with the reflecting case in the rear part of the reflecting case; and lead members inserted into the base body part, having a pair of connecting parts including base parts of the connecting parts drawn out from the lower surface of the base body part and bent along the lower surface and side bending parts provided in the base parts of the connecting parts and bent along the side surfaces of the terminal holding part and connected to a pattern of the wiring board; and is characterized in that the base parts of the connecting parts are provided with protruding parts protruding toward the center of the lower surface of the terminal holding part and cut-out parts are provided for accommodating the protruding parts in the lower surface of the terminal holding part.Type: GrantFiled: December 24, 2008Date of Patent: March 20, 2012Assignees: Toyoda Gosei Co., Ltd., Panasonic CorporationInventors: Hideki Kokubu, Toshimasa Hayashi, Yuhki Ito, Michio Miyawaki
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Patent number: 7993038Abstract: In a light-emitting device including a base body portion which is configured by integrally forming a reflection case and a terminal holding portion provided at the rear portion of the reflection case and lead members to be inserted into the base body portion, portions of the lead members extracted outside of the base body portion are bent along the terminal holding portion to form a pair of connection portions to be connected to the pattern of a wiring board, respectively, a plurality of radiation plates are provided at the lead member. The plurality of the radiation plates are extracted from the same surface (lower surface) of the base body portion. Since the plurality of radiation plates are provided, at the time of being the radiation plates, the base body portion is prevented from being applied with an excessive force and the damage of the base body portion can be prevented.Type: GrantFiled: March 5, 2008Date of Patent: August 9, 2011Assignees: Toyoda Gosei Co., Ltd., Panasonic CorporationInventors: Hideki Kokubu, Toshimasa Hayashi, Kenichi Koya, Michio Miyawaki
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Patent number: D652394Type: GrantFiled: March 21, 2011Date of Patent: January 17, 2012Assignee: Toyoda Gosei Co., Ltd.Inventors: Kosei Fukui, Hideki Kokubu, Toshimasa Hayashi
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Patent number: D652807Type: GrantFiled: March 11, 2011Date of Patent: January 24, 2012Assignee: Toyoda Gosei Co., Ltd.Inventors: Kosei Fukui, Hideki Kokubu, Toshimasa Hayashi
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Patent number: D653222Type: GrantFiled: March 21, 2011Date of Patent: January 31, 2012Assignee: Toyoda Gosei Co., Ltd.Inventors: Kosei Fukui, Hideki Kokubu, Toshimasa Hayashi