Patents by Inventor Takuya Serita
Takuya Serita 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: 11156338Abstract: A lamp unit includes a light source, and a socket on which the light source unit is mounted. The socket includes a light source holder that holds the light source, and a connector that supplies power to the light source, and the light source holder includes a recess extending along a light source unit mounting surface from an outside to a portion immediately below the light source.Type: GrantFiled: January 11, 2019Date of Patent: October 26, 2021Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Yoshimasa Murata, Takuya Serita
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Publication number: 20200340641Abstract: A lamp unit includes a light source, and a socket on which the light source unit is mounted. The socket includes a light source holder that holds the light source, and a connector that supplies power to the light source, and the light source holder includes a recess extending along a light source unit mounting surface from an outside to a portion immediately below the light source.Type: ApplicationFiled: January 11, 2019Publication date: October 29, 2020Inventors: Yoshimasa MURATA, Takuya SERITA
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Patent number: 10800317Abstract: A vehicle lamp includes: a first light source; a second light source; a first input terminal that receives a first turn-on instruction signal of the first light source; a second input terminal that receives a pulsed second turn-on instruction signal of the second light source; and a turn-on circuit that drives the first light source and the second light source based on the first turn-on instruction signal and the second turn-on instruction signal. The turn-on circuit includes: a drive circuit that becomes active based on the first turn-on instruction signal and the second turn-on instruction signal, and outputs a constant drive current from an output terminal; and a distribution circuit that forms a current path such that the drive current flows to the second light source, and forms a current path such that the drive current flows to the first light source.Type: GrantFiled: January 21, 2020Date of Patent: October 13, 2020Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Tomoyuki Ichikawa, Takuya Serita, Masato Harazaki
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Publication number: 20200238890Abstract: A vehicle lamp includes: a first light source; a second light source; a first input terminal that receives a first turn-on instruction signal of the first light source; a second input terminal that receives a pulsed second turn-on instruction signal of the second light source; and a turn-on circuit that drives the first light source and the second light source based on the first turn-on instruction signal and the second turn-on instruction signal. The turn-on circuit includes: a drive circuit that becomes active based on the first turn-on instruction signal and the second turn-on instruction signal, and outputs a constant drive current from an output terminal; and a distribution circuit that forms a current path such that the drive current flows to the second light source, and forms a current path such that the drive current flows to the first light source.Type: ApplicationFiled: January 21, 2020Publication date: July 30, 2020Inventors: Tomoyuki Ichikawa, Takuya Serita, Masato Harazaki
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Patent number: 10359179Abstract: A light source unit includes a board, a resin-molded unit formed using a resin material as a base material and having thermal conductivity, and a socket housing including a heat sink formed of a metal material, and a board attachment portion to which the board is attached and a covered surface which is covered with the resin-molded unit, wherein the resin-molded unit is formed with a holding hole communicating with the covered surface, and the heat sink and the resin-molded unit are formed by integral molding when a portion of the covered surface and a portion of the attachment surface are pressed by a portion of a mold inserted through the holding hole and another portion of the mold, respectively.Type: GrantFiled: September 26, 2017Date of Patent: July 23, 2019Assignee: Koito Manufacturing Co., Ltd.Inventors: Atsushi Ozawa, Yoshimasa Murata, Takuya Serita
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Patent number: 10337717Abstract: In one embodiment of a light source unit, the heat-dissipation plate is provided with a first heat-dissipation portion in contact with the substrate, the resin molding part is provided with a plurality of heat-dissipation fins and an engaging portion to be engaged with a predetermined member, and the socket housing is formed by an integral molding of the heat-dissipation plate and the resin molding part.Type: GrantFiled: March 30, 2016Date of Patent: July 2, 2019Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Atsushi Ozawa, Takuya Serita, Yoshimasa Murata, Ryota Naito, Takahiro Kumeta
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Patent number: 9997375Abstract: An LED unit according to the invention has a resin housing which is detachably assembled to a vehicle lamp, a lead frame which has a terminal portion which is connected to an exterior terminal, an LED mounting portion and a control part mounting portion and lead frame which is provided integrally on the housing, an LED which is mounted on the LED mounting portion, and a control part which is mounted on the control part mounting portion for controlling the illumination of the LED. The lead frame has a support resin which is a resin material which holds the LED mounting portion in such a way as to surround the LED mounting portion. The lead frame is bent to a back side of the LED at areas outside the support resin, and the control part mounting portion and the terminal portion are formed respectively by the bent portions.Type: GrantFiled: May 7, 2015Date of Patent: June 12, 2018Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Takuya Serita, Atsushi Ozawa
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Publication number: 20180106465Abstract: A light source unit includes a socket housing including a heat sink formed of a metal material and having a board attachment portion, and a resin-molded unit formed using a resin material as a base material and having thermal conductivity, a board attached to the board attachment portion, and a light emitting element mounted on the board and configured to function as a light source. The board attachment portion is formed with an attachment surface to which the board is attached and a covered surface which is covered with the resin-molded unit. A holding hole communicating with the covered surface is formed in the resin-molded unit. In the socket housing, the heat sink and the resin-molded unit are formed by integral molding when a portion of the covered surface and a portion of the attachment surface are pressed by a portion of a mold inserted through the holding hole and another portion of the mold, respectively.Type: ApplicationFiled: September 26, 2017Publication date: April 19, 2018Inventors: Atsushi Ozawa, Yoshimasa Murata, Takuya Serita
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Patent number: 9644809Abstract: A light source unit includes a socket, a heat dissipation member, a board and a semiconductor light emitting element. The socket has a first thermal conductivity and includes a portion that defines a first side and a second side. The heat dissipation member has a second thermal conductivity being higher than the first thermal conductivity. The board is disposed on the first side. The semiconductor light emitting element is supported by the board. The socket is an injection-molded member. The heat dissipation member includes a first portion and a second portion. The first portion is disposed on the first side, extends in a first direction, and supports the board. The second portion includes a portion extending in a second direction intersecting with the first direction, as a result of being subjected to bending processing. A part of the second portion is disposed on the second side.Type: GrantFiled: January 28, 2015Date of Patent: May 9, 2017Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Ryujiro Ikuta, Takayuki Otsubo, Atsushi Ozawa, Takuya Serita
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Publication number: 20170067626Abstract: A light source module of the present disclosure is provided with a light source, e.g., LED chips and a control circuit to control light emission of the light source. The light source module includes a light source mounting unit to be mounted with the light source, and a control mounting unit to be mounted with the control circuit. The light source mounting unit and the control mounting unit are formed as independent components that can be integrated with each other so that when the light source mounting unit and the control mounting unit are integrated with each other, the light source and the control circuit are electrically connected to each other.Type: ApplicationFiled: August 29, 2016Publication date: March 9, 2017Inventors: Noriaki Ito, Takuya Serita, Atsushi Ozawa, Tomiharu Hirano
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Publication number: 20160290621Abstract: In one embodiment of a light source unit, the heat-dissipation plate is provided with a first heat-dissipation portion in contact with the substrate, the resin molding part is provided with a plurality of heat-dissipation fins and an engaging portion to be engaged with a predetermined member, and the socket housing is formed by an integral molding of the heat-dissipation plate and the resin molding part.Type: ApplicationFiled: March 30, 2016Publication date: October 6, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Atsushi OZAWA, Takuya SERITA, Yoshimasa MURATA, Ryota NAITO, Takahiro KUMETA
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Publication number: 20150325740Abstract: An LED unit according to the invention has a resin housing which is detachably assembled to a vehicle lamp, a lead frame which has a terminal portion which is connected to an exterior terminal, an LED mounting portion and a control part mounting portion and lead frame which is provided integrally on the housing, an LED which is mounted on the LED mounting portion, and a control part which is mounted on the control part mounting portion for controlling the illumination of the LED. The lead frame has a support resin which is a resin material which holds the LED mounting portion in such a way as to surround the LED mounting portion. The lead frame is bent to a back side of the LED at areas outside the support resin, and the control part mounting portion and the terminal portion are formed respectively by the bent portions.Type: ApplicationFiled: May 7, 2015Publication date: November 12, 2015Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Takuya SERITA, Atsushi OZAWA
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Publication number: 20150211725Abstract: A light source unit includes a socket, a heat dissipation member, a board and a semiconductor light emitting element. The socket has a first thermal conductivity and includes a portion that defines a first side and a second side. The heat dissipation member has a second thermal conductivity being higher than the first thermal conductivity. The board is disposed on the first side. The semiconductor light emitting element is supported by the board. The socket is an injection-molded member. The heat dissipation member includes a first portion and a second portion. The first portion is disposed on the first side, extends in a first direction, and supports the board. The second portion includes a portion extending in a second direction intersecting with the first direction, as a result of being subjected to bending processing. A part of the second portion is disposed on the second side.Type: ApplicationFiled: January 28, 2015Publication date: July 30, 2015Inventors: Ryujiro Ikuta, Takayuki Otsubo, Atsushi Ozawa, Takuya Serita
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Patent number: 8330369Abstract: An arc tube for a discharge bulb, comprising a sealed glass bulb in which luminous materials are sealed; a plurality of pinch-sealed portions made of quartz glass and formed at both end portions of the sealed glass bulb; a plurality of molybdenum foils each pinch sealed in the corresponding pinch-sealed portion; a pair of electrode rods provided in the sealed glass bulb so as to face each other, wherein each of electrode rods extends from the sealed glass bulb to the corresponding pinch-sealed portion and is connected to one end of the corresponding molybdenum foil; and a plurality of lead wires each connected to the other end of the corresponding molybdenum foil, wherein the molybdenum foils comprise a plurality of closed cavities therein.Type: GrantFiled: April 13, 2011Date of Patent: December 11, 2012Assignee: Koito Manufacturing Co., Ltd.Inventors: Terutoshi Sako, Yuichiro Fujino, Takuya Serita
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Publication number: 20110254438Abstract: An arc tube for a discharge bulb, comprising a sealed glass bulb in which luminous materials are sealed; a plurality of pinch-sealed portions made of quartz glass and formed at both end portions of the sealed glass bulb; a plurality of molybdenum foils each pinch sealed in the corresponding pinch-sealed portion; a pair of electrode rods provided in the sealed glass bulb so as to face each other, wherein each of electrode rods extends from the sealed glass bulb to the corresponding pinch-sealed portion and is connected to one end of the corresponding molybdenum foil; and a plurality of lead wires each connected to the other end of the corresponding molybdenum foil, wherein the molybdenum foils comprise a plurality of closed cavities therein.Type: ApplicationFiled: April 13, 2011Publication date: October 20, 2011Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Terutoshi SAKO, Yuichiro FUJINO, Takuya SERITA
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Patent number: 7750569Abstract: A high-frequency discharge lamp includes a coaxial waveguide including an internal conductor and a pipe-shaped external conductor surrounding said internal conductor, and a discharge tube including a ceramic or glass tube having an approximately ellipse spherical bulged part formed in a middle of a longitudinal direction, and both ends pinched and sealed; a conductor assembly sealed and attached to an end of the ceramic or glass tube; and an auxiliary electrode for starting disposed near the approximately ellipse spherical bulged part. A rare gas for starting with 1 atmospheric pressure or more at room temperature together with a light emission substance is enclosed inside of the approximately ellipse spherical bulged part. The discharge tube is inserted conductor assembly end first and held in a top opening of the coaxial waveguide. A high-voltage pulse generated by a high-voltage pulse generator is applied to the auxiliary electrode through a pulse transmission line.Type: GrantFiled: February 13, 2007Date of Patent: July 6, 2010Assignee: Koito Manufacturing Co., Ltd.Inventors: Takuya Serita, Masaya Shido
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Patent number: 7598676Abstract: A discharge lamp includes a coaxial waveguide for high-frequency electromagnetic wave transmission and a discharge tube for emitting light of discharge by plasma generated by electromagnetic waves. The coaxial waveguide includes an internal conductor and a pipe-shaped external conductor surrounding the internal conductor. The discharge tube is attached to a top of the coaxial waveguide, and is constructed in a double end shape in which both ends of a glass tube are pinched and sealed. The glass tube includes an ellipse spherical bulged part formed in a middle of a longitudinal direction. An inside of the ellipse spherical bulged part forms discharge space. A conductor assembly is sealed and attached to at least a proximal side pinch seal part. The proximal side pinch seal part of the discharge tube is inserted and held in a top opening of the coaxial waveguide.Type: GrantFiled: February 13, 2007Date of Patent: October 6, 2009Assignee: Koito Manufacturing Co., Ltd.Inventors: Takuya Serita, Masaya Shido
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Patent number: 7548031Abstract: In the transient electric power control of a discharge lamp containing no mercury or a small amount of mercury, a change value relating to a lamp voltage from the initial value thereof is detected. A control unit is provided to change the temporal change rate of electric power supplied to the discharge lamp during the transient time period in accordance with the increase of the change value or the time lapse.Type: GrantFiled: July 15, 2005Date of Patent: June 16, 2009Assignee: Koito Manufacturing Co., Ltd.Inventors: Tomoyuki Ichikawa, Takuya Serita
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Publication number: 20090134762Abstract: An electric discharge lamp is provided. The electric discharge lamp includes a ceramic luminous tube; electrodes held by the ceramic luminous tube; a first outer tube which is made of glass and covers the ceramic luminous tube to form a first space between the ceramic luminous tube and the first outer tube; and a second outer tube which is made of glass and covers the first outer tube to form a second space between the first outer tube and the second outer tube. A vacuum is formed in the first space.Type: ApplicationFiled: October 29, 2008Publication date: May 28, 2009Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Takuya SERITA, Toru ITO
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Publication number: 20080122380Abstract: A discharge lamp lighting circuit supplies an AC power for lighting a discharge lamp. The discharge lamp lighting circuit includes a power supply portion for supplying the AC power to the discharge lamp and a control portion for controlling the magnitude of the AC power. The power supply portion includes a series resonance circuit including transistors, a transformer, a capacitor and an inductor and a bridge driver for driving the transistors. The control portion controls the bridge driver so that the AC power increases intermittently. Thus, as the temperature of electrodes can be increased while suppressing the temporal average value of the supplied power within a rated power, the movement of a luminous point at the time of lighting the discharge lamp with a high frequency can be suppressed.Type: ApplicationFiled: June 25, 2007Publication date: May 29, 2008Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Kotaro Matsui, Tomoyuki Ichikawa, Takuya Serita