Patents by Inventor Toshiaki Tsuda
Toshiaki Tsuda 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: 9970619Abstract: A vehicle lamp includes a semiconductor laser element configured to emit laser light; a condenser lens configured to condense the laser light, a phosphor configured to form white light by converting wavelength of at least a portion of the laser light condensed, and a reflector configured to reflect the white light. A scattered light forming part is formed on a surface of the reflector, which is a surface at which a path obtained by extending an optical path of the laser light before the laser light hits the phosphor is intersected with the reflector.Type: GrantFiled: April 4, 2016Date of Patent: May 15, 2018Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Akihiro Nomura, Tsukasa Tokida, Yuichi Shibata, Yukihiro Onoda, Takayuki Yagi, Satoshi Yamamura, Toshiaki Tsuda
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Patent number: 9933129Abstract: A light source module includes a light source which comprises a light emitting element, a stem configured to support the light emitting element, and a terminal having one end electrically connected to the light emitting element, a wiring board to which the other end of the terminal is electrically connected and which is configured to electrically connect the terminal to an external power supply terminal, and a thermal diffusion member which is disposed between the stem and the wiring board and is thermally connected to the light emitting element.Type: GrantFiled: March 9, 2016Date of Patent: April 3, 2018Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Toshiaki Tsuda
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Publication number: 20180045393Abstract: Provided is a vehicular headlamp including: an excitation light source; a scanning mechanism configured to scan light emitted by the excitation light source toward a predetermined direction; a projection lens; and a phosphor provided between the scanning mechanism and the projection lens and configured to transmit light scanned by the scanning mechanism toward the projection lens. The phosphor is formed as a curved body that is curved in a direction opposite to a curved image plane of the projection lens.Type: ApplicationFiled: July 26, 2017Publication date: February 15, 2018Inventors: Takayuki Yagi, Noriko Sato, Toshiaki Tsuda
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Publication number: 20170337821Abstract: In this invention, letters that can be seen by a pedestrian (101) are drawn on an intersection (103). A mark (MM2) that can be seen by the driver of the host vehicle (C) is drawn on the road (104) between the intersection (103) and the host-vehicle (C). The shapes of the letters (MO4) are corrected in accordance with the positional relationship between the pedestrian (101) and the intersection (103). The shape of the mark (MM2) is corrected in accordance with the positional relationship between the driver of the host-vehicle (C) and the road (104).Type: ApplicationFiled: September 7, 2015Publication date: November 23, 2017Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Takeshi MASUDA, Michihiko HAYAKAWA, Yuichi SHIBATA, Takayuki YAGI, Misako NAKAZAWA, Toshiaki TSUDA, Hidetada TANAKA, Satoshi YAMAMURA
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Patent number: 9616750Abstract: A vehicle display system displays information on a road surface. The vehicle display system includes an other-entity detector, an intersection detector, and a display device. The other-entity detector detects whether or not another entity approaches a vehicle mounted with the vehicle display system. The intersection detector detects whether or not the vehicle approaches an intersection. When the other-entity detector detects that said another entity approaches the vehicle or when the intersection detector detects that the vehicle approaches the intersection, the display device displays a predetermined shape in a predetermined region of a road surface ahead of the vehicle while moving the predetermined shape.Type: GrantFiled: August 11, 2015Date of Patent: April 11, 2017Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Yuichi Shibata, Takayuki Yagi, Hidetada Tanaka, Misako Nakazawa, Michihiko Hayakawa, Takeshi Masuda, Toshiaki Tsuda
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Publication number: 20170067609Abstract: A vehicle lamp (1) includes a laser light source (7) that is able to emit laser light (B2) and emits laser light (B2) generated by the laser light source (7) forward from an emission end (32a). The vehicle lamp (1) includes a light-shielding member (34) that shields the emission end (32a) from light from above to at least a horizontal position in front of the emission end (32a).Type: ApplicationFiled: February 23, 2015Publication date: March 9, 2017Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Tomoyuki ICHIKAWA, Toshiaki TSUDA, Noriko SATO, Masanobu MIZUNO, Osamu KUBOYAMA, Takeshi MASUDA
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Publication number: 20170030544Abstract: A vehicle lamp includes a light source that shines a laser beam and a laser scanning unit that has a single or plurality of acousto-optic devices, and the laser scanning unit can control an angle at which a laser beam that is incident on the acousto-optic devices is deflected. The vehicle lamp is strong enough to deal with vibrations and withstands the application to a motor vehicle.Type: ApplicationFiled: April 7, 2015Publication date: February 2, 2017Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Toshiaki TSUDA, Takeshi MASUDA
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Publication number: 20170016586Abstract: A vehicle lamp includes a first light source, a second light source, and a third light source that emit laser beams; a first lens, a second lens, and a third lens that collimate the respective laser beams emitted by the first light source, the second light source, and the third light source; a converging reflector having a reflective surface whose basis is a paraboloid of revolution, and that reflects the respective laser beams transmitted through the first lens, the second lens, and the third lens; and a phosphor that, receiving laser light reflected by the converging reflector, emits light.Type: ApplicationFiled: September 28, 2016Publication date: January 19, 2017Applicant: Koito Manufacturing Co., Ltd.Inventors: Toshiaki TSUDA, Noriko SATO, Misako NAKAZAWA
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Patent number: 9500338Abstract: A vehicle lamp includes a plurality of lamp units each comprising a light source and a projection lens configured to emit light emitted from the light source to the front. The plurality of lamp units form a light distribution pattern by combining irradiation regions formed by each lamp unit. At least one of the lamp units has a lens driving mechanism configured to tilt the projection lens in a vertical direction.Type: GrantFiled: April 24, 2015Date of Patent: November 22, 2016Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Toshiaki Tsuda
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Publication number: 20160305626Abstract: A vehicle lamp includes a semiconductor laser element configured to emit laser light, a condenser lens configured to condense the laser light, a phosphor configured to form white light by converting wavelength of at least a portion of the laser light condensed, and a reflector configured to reflect the white light. A light transmitting portion is formed in a portion, at which an extension path obtaining by extending an optical path of the laser light before contacting the phosphor is intersected with the reflector, of the reflector. A light confinement part is formed above the light transmitting portion.Type: ApplicationFiled: April 15, 2016Publication date: October 20, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Naoki Tatara, Satoshi Yamamura, Naoki Uchida, Toshiaki Tsuda
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Publication number: 20160290620Abstract: A light source module includes: a light source including a light emitting device and a terminal of which one end side is electrically connected to the light emitting device; a wiring board configured to electrically connect another end side of the terminal to an external power supply terminal; a thermal diffusion member disposed between the light source and the wiring board and connected to the light emitting device in a heat-transferable manner; and a temperature detector mounted on the wiring board to detect a temperature of the light source. The thermal diffusion member has a recessed portion on a surface of the thermal diffusion member which faces the wiring board side, and the temperature detector is accommodated in the recessed portion.Type: ApplicationFiled: March 17, 2016Publication date: October 6, 2016Inventors: Tomoyuki Ichikawa, Toshiaki Tsuda
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Publication number: 20160290584Abstract: A vehicle lamp includes a semiconductor laser element configured to emit laser light; a condenser lens configured to condense the laser light, a phosphor configured to form white light by converting wavelength of at least a portion of the laser light condensed, and a reflector configured to reflect the white light. A scattered light forming part is formed on a surface of the reflector, which is a surface at which a path obtained by extending an optical path of the laser light before the laser light hits the phosphor is intersected with the reflector.Type: ApplicationFiled: April 4, 2016Publication date: October 6, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Akihiro Nomura, Tsukasa Tokida, Yuichi Shibata, Yukihiro Onoda, Takayuki Yagi, Satoshi Yamamura, Toshiaki Tsuda
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Publication number: 20160265736Abstract: A light source module includes a light source which comprises a light emitting element, a stem configured to support the light emitting element, and a terminal having one end electrically connected to the light emitting element, a wiring board to which the other end of the terminal is electrically connected and which is configured to electrically connect the terminal to an external power supply terminal, and a thermal diffusion member which is disposed between the stem and the wiring board and is thermally connected to the light emitting element.Type: ApplicationFiled: March 9, 2016Publication date: September 15, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Toshiaki Tsuda
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Publication number: 20160039286Abstract: A vehicle display system displays information on a road surface. The vehicle display system includes an other-entity detector, an intersection detector, and a display device. The other-entity detector detects whether or not another entity approaches a vehicle mounted with the vehicle display system. The intersection detector detects whether or not the vehicle approaches an intersection. When the other-entity detector detects that said another entity approaches the vehicle or when the intersection detector detects that the vehicle approaches the intersection, the display device displays a predetermined shape in a predetermined region of a road surface ahead of the vehicle while moving the predetermined shape.Type: ApplicationFiled: August 11, 2015Publication date: February 11, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Yuichi Shibata, Takayuki Yagi, Hidetada Tanaka, Misako Nakazawa, Michihiko Hayakawa, Takeshi Masuda, Toshiaki Tsuda
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Publication number: 20150345728Abstract: An automotive lamp includes: a light source; a light emitting member that receives light from the light source and emits light; and a support member that supports the light emitting member. The support member includes a translucent light emitting member accommodating unit. The light emitting member accommodating unit includes a recess in which the light emitting member is accommodated. A light incidence surface and side surfaces of the light emitting member are in contact with the light emitting member accommodating unit in a state in which the light emitting member is accommodated in the recess.Type: ApplicationFiled: August 12, 2015Publication date: December 3, 2015Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Toshiaki TSUDA, Tomoyuki ICHIKAWA
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Publication number: 20150323148Abstract: A vehicle lamp includes a plurality of lamp units each comprising a light source and a projection lens configured to emit light emitted from the light source to the front. The plurality of lamp units form a light distribution pattern by combining irradiation regions formed by each lamp unit. At least one of the lamp units has a lens driving mechanism configured to tilt the projection lens in a vertical direction.Type: ApplicationFiled: April 24, 2015Publication date: November 12, 2015Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Toshiaki TSUDA
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Patent number: 8773008Abstract: A discharge lamp bulb includes an arc tube having: a pair of electrodes that are opposed to each other inside a luminous tube; an outer tube having the luminous tube therein; a pair of lead wires connected to the electrodes; and a metal band mounted on an outer periphery of the outer tube, a support plug having: a plug body having a hollow, inner cylindrical section therein that opens at a front end; an arc-tube support portion mounted on a front-end edge of the inner cylindrical section; and a flange, and a lead support wire extending outside the outer tube in the longitudinal direction and connecting one of the lead wires with the support plug, wherein a front-end face of the inner cylindrical section is substantially flush with a front-end face of the flange or positioned on a back-end side with respect to the front-end face of the flange.Type: GrantFiled: March 14, 2012Date of Patent: July 8, 2014Assignee: Koito Manufacturing Co., Ltd.Inventors: Yoshiro Ito, Toshiaki Tsuda, Kunio Fukai, Masaya Shido
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Patent number: 8350478Abstract: A vehicle discharge lamp includes: an arc tube including a light emitter, a cathode side fine tube and an anode side fine tube; a cathode side connecting rod; an anode side connecting rod; a cathode side electrode and an anode side electrode disposed within the arc tube. The anode side fine tube includes an expansion portion and an insertion portion formed continuously with the expansion portion, a portion of the anode side electrode is situated within the expansion portion with a clearance, the expansion portion includes a uniform diameter portion with its inside diameter set uniform in an anode side electrode's axial direction, the light emitter includes a flat portion with its axial direction set coincident with the anode side electrode's axial direction, and an inside diameter of the uniform diameter portion is set larger than that of the insertion portion and smaller than that of the flat portion.Type: GrantFiled: December 2, 2011Date of Patent: January 8, 2013Assignee: Koito Manufacturing Co., Ltd.Inventors: Toru Ito, Toshiaki Tsuda
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Publication number: 20120235563Abstract: A discharge lamp bulb includes an arc tube having: a pair of electrodes that are opposed to each other inside a luminous tube; an outer tube having the luminous tube therein; a pair of lead wires connected to the electrodes; and a metal band mounted on an outer periphery of the outer tube, a support plug having: a plug body having a hollow, inner cylindrical section therein that opens at a front end; an arc-tube support portion mounted on a front-end edge of the inner cylindrical section; and a flange, and a lead support wire extending outside the outer tube in the longitudinal direction and connecting one of the lead wires with the support plug, wherein a front-end face of the inner cylindrical section is substantially flush with a front-end face of the flange or positioned on a back-end side with respect to the front-end face of the flange.Type: ApplicationFiled: March 14, 2012Publication date: September 20, 2012Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Yoshiro ITO, Toshiaki TSUDA, Kunio FUKAI, Masaya SHIDO
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Publication number: 20120139414Abstract: A vehicle discharge lamp includes: an arc tube including a light emitter, a cathode side fine tube and an anode side fine tube; a cathode side connecting rod; an anode side connecting rod; a cathode side electrode and an anode side electrode disposed within the arc tube. The anode side fine tube includes an expansion portion and an insertion portion formed continuously with the expansion portion, a portion of the anode side electrode is situated within the expansion portion with a clearance, the expansion portion includes a uniform diameter portion with its inside diameter set uniform in an anode side electrode's axial direction, the light emitter includes a flat portion with its axial direction set coincident with the anode side electrode's axial direction, and an inside diameter of the uniform diameter portion is set larger than that of the insertion portion and smaller than that of the flat portion.Type: ApplicationFiled: December 2, 2011Publication date: June 7, 2012Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Toru ITO, Toshiaki TSUDA