Patents by Inventor Yuki Yamagata
Yuki Yamagata 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: 11703748Abstract: A light source lighting device includes: a laser light source unit; a converging lens that converges a plurality of light beams emitted from the laser light source unit; a diffuser plate that diffuses a plurality of light beams converged by the converging lens; and a second collimating lens that collimates a light beam diffused by the diffuser plate. The converging lens has an aspherical surface, the second collimating lens has a spherical surface, the aspherical surface of the converging lens has an aspherical surface coefficient that is set to cancel a positive spherical aberration of the second collimating lens. A luminous flux density in a proximity of an optical axis is lower than a luminous flux density in a peripheral part away from the optical axis, the optical axis being an axis of a light beam emitted from the second collimating lens.Type: GrantFiled: February 14, 2022Date of Patent: July 18, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Yuki Yamagata
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Patent number: 11503257Abstract: A light source device includes: a first reflector having a first reflective surface; a second reflector having a second reflective surface that is parallel to the first reflective surface and is located in a space behind the first reflective surface with respect to a normal direction of the first reflective surface; a first light source that emits a first light beam directed to the first reflective surface; and a second light source emitting a second light beam that is parallel to the first light beam. The second light beam is directed to the second reflective surface through a space in front of the first reflective surface.Type: GrantFiled: December 3, 2020Date of Patent: November 15, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Yuki Yamagata
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Publication number: 20220163878Abstract: A light source lighting device includes: a laser light source unit; a converging lens that converges a plurality of light beams emitted from the laser light source unit; a diffuser plate that diffuses a plurality of light beams converged by the converging lens; and a second collimating lens that collimates a light beam diffused by the diffuser plate. The converging lens has an aspherical surface, the second collimating lens has a spherical surface, the aspherical surface of the converging lens has an aspherical surface coefficient that is set to cancel a positive spherical aberration of the second collimating lens. A luminous flux density in a proximity of an optical axis is lower than a luminous flux density in a peripheral part away from the optical axis, the optical axis being an axis of a light beam emitted from the second collimating lens.Type: ApplicationFiled: February 14, 2022Publication date: May 26, 2022Inventor: Yuki YAMAGATA
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Publication number: 20210195147Abstract: A light source device includes: a first reflector having a first reflective surface; a second reflector having a second reflective surface that is parallel to the first reflective surface and is located in a space behind the first reflective surface with respect to a normal direction of the first reflective surface; a first light source that emits a first light beam directed to the first reflective surface; and a second light source emitting a second light beam that is parallel to the first light beam. The second light beam is directed to the second reflective surface through a space in front of the first reflective surface.Type: ApplicationFiled: December 3, 2020Publication date: June 24, 2021Inventor: Yuki YAMAGATA
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Patent number: 10809539Abstract: An illumination apparatus includes first and second laser light source units, each of which is configured by juxtaposing a plurality of laser light sources in an array, and which are provided to oppose each other. The illumination apparatus further includes first and second reflecting members. The second reflecting member has a first gap and is divided into first and second reflecting portions, and the first reflecting member is disposed so as to pass through the first gap. A second outgoing light beam transmitted through a transmitting region of the first reflecting member and a fourth outgoing light beam transmitted through a transmitting region of the second reflecting member are reflected in an output light direction by a reflecting region of the second reflecting member and a reflecting region of the first reflecting member, respectively.Type: GrantFiled: April 4, 2019Date of Patent: October 20, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shigekazu Yamagishi, Yuki Yamagata
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Patent number: 10495963Abstract: A light source device includes first and second laser light source units, a first reflective member, and a returning reflective member. The first and second laser light source units are disposed face-to-face, each of the first and the second laser light source units comprising a plurality of laser light sources arranged in an array. The first reflective member is disposed diagonally with respect to the light emitted from the first and second laser light source units, the first reflective member reflecting the light. The returning reflective member reflects the light emitted from the second laser light source unit and reflected by the first reflective member. The light emitted from the first laser light source unit and reflected by the first reflective member is parallel to, and in a same direction of travel as, the light emitted from the second laser light source unit and reflected by the returning reflective member.Type: GrantFiled: November 15, 2018Date of Patent: December 3, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuki Yamagata, Hiroki Sugiyama
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Publication number: 20190310539Abstract: An illumination apparatus includes first and second laser light source units, each of which is configured by juxtaposing a plurality of laser light sources in an array, and which are provided to oppose each other. The illumination apparatus further include first and second reflecting members. The second reflecting member has a predetermined first gap and is divided into first and second reflecting portions, and the first reflecting member is disposed so as to pass through the first gap. The second outgoing light beam transmitted through the transmitting region of the first reflecting member and the fourth outgoing light beam transmitted through the transmitting region of the second reflecting member are reflected in the output light direction by the reflecting region of the second reflecting member and the reflecting region of the first reflecting member, respectively.Type: ApplicationFiled: April 4, 2019Publication date: October 10, 2019Inventors: Shigekazu YAMAGISHI, Yuki YAMAGATA
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Publication number: 20190171096Abstract: A light source device includes first and second laser light source units, a first reflective member, and a returning reflective member. The first and second laser light source units are disposed face-to-face, each of the first and the second laser light source units comprising a plurality of laser light sources arranged in an array. The first reflective member is disposed diagonally with respect to the light emitted from the first and second laser light source units, the first reflective member reflecting the light. The returning reflective member reflects the light emitted from the second laser light source unit and reflected by the first reflective member. The light emitted from the first laser light source unit and reflected by the first reflective member is parallel to, and in a same direction of travel as, the light emitted from the second laser light source unit and reflected by the returning reflective member.Type: ApplicationFiled: November 15, 2018Publication date: June 6, 2019Inventors: YUKI YAMAGATA, HIROKI SUGIYAMA
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Patent number: 8013725Abstract: Pneumatic pressure monitoring units that measure pneumatic pressures of respective tires and that transmit results of the measurements of the pneumatic pressures from respective antennas by the use of radio signals are provided at the tires, respectively. A communication unit including a beam controller arranged to selectively direct reception beams towards the respective tires is provided at substantially the center near the bottom surface of a vehicle. The antennas of the respective pneumatic pressure monitoring units are constructed so that directivity patterns of transmission beams are directed towards the inside in axle directions of the tires.Type: GrantFiled: March 20, 2007Date of Patent: September 6, 2011Assignee: Murata Manufacturing Co., Ltd.Inventors: Tsuneo Murata, Yuki Yamagata
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Publication number: 20070159315Abstract: Pneumatic pressure monitoring units that measure pneumatic pressures of respective tires and that transmit results of the measurements of the pneumatic pressures from respective antennas by the use of radio signals are provided at the tires, respectively. A communication unit including a beam controller arranged to selectively direct reception beams towards the respective tires is provided at substantially the center near the bottom surface of a vehicle. The antennas of the respective pneumatic pressure monitoring units are constructed so that directivity patterns of transmission beams are directed towards the inside in axle directions of the tires.Type: ApplicationFiled: March 20, 2007Publication date: July 12, 2007Applicant: Murata Manufacturing Co., Ltd.Inventors: Tsuneo Murata, Yuki Yamagata