Patents by Inventor Hidetada Tanaka
Hidetada Tanaka 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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Publication number: 20160297357Abstract: In one embodiment of the vehicular display system, the drawing unit operates when the vehicle speed is within a predetermined low speed area, starts an operation thereof when the vehicle speed becomes above a lower limit of the low speed area, and stops the operation thereof when the vehicle speed exceeds an upper limit of the low speed area.Type: ApplicationFiled: April 6, 2016Publication date: October 13, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Michihiko HAYAKAWA, Takao MURAMATSU, Naoki SUGIURA, Syouhei YANAGIDU, Satoshi KIKUCHI, Hiroaki HARA, Takayoshi ISHIZUKA, Hidetada TANAKA, Takeshi MASUDA
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Publication number: 20160238210Abstract: A vehicle lamp control system is provided which can not only restrict a semiconductor light emitting element from being deteriorated or damaged by sunlight and but also maintain an illumination efficiency of the semiconductor light emitting element. The vehicle lamp control system includes a projection lens, semiconductor light emitting elements disposed near a rear focal point of the projection lens and emit light towards the projection lens, a movable shade which can move between a shading position where the movable shade cuts off light emitted from the semiconductor light emitting elements to be incident on the projection lens and a non-shading position where the movable shade does not cut off light emitting elements to be incident on the projection lens, and a headlamp control unit which executes a control in which the movable shade is moved to the shading position with the semiconductor light emitting elements left switched off.Type: ApplicationFiled: September 25, 2014Publication date: August 18, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Takeshi MASUDA, Michihiko HAYAKAWA, Takao MURAMATSU, Misako NAKAZAWA, Hidetada TANAKA, Yuichi SHIBATA
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Publication number: 20160185276Abstract: A vehicle lamp includes a first light source that emits light of a first brightness, a second light source that emits light of a second brightness higher than the first brightness, an actuator that changes the direction of light emitted from the first light source and the second light source, and an ADB control device that controls the light output of the second light source and the actuator so as to be associated with each other in accordance with a driving condition of a vehicle.Type: ApplicationFiled: December 24, 2015Publication date: June 30, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Hidetada Tanaka, Yuichi Shibata, Misako Nakazawa, Michihiko Hayakawa
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Publication number: 20160167566Abstract: The invention relates to a light distribution control method and a light distribution control device in which plural illumination regions are arranged in the left-right direction and illuminated by a headlamp in an ADB light distribution pattern, and vehicle positions of a vehicle ahead are detected and selected ones of the plural illumination regions are reduced in light quantity according to the detected vehicle positions. In this method and device, corrected vehicle positions are set that are obtained by adding margins to the detected vehicle positions in the left and right directions, respectively, and compared with the plural illumination regions. Illumination regions where the vehicle ahead exists are reduced in light quantity.Type: ApplicationFiled: July 9, 2014Publication date: June 16, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Hidetada TANAKA, Takeshi MASUDA, Motohiro KOMATSU, Takao MURAMATSU
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Patent number: 9347659Abstract: In an automotive headlamp, a light-emitting module is configured such that a light-emitting element and a control circuit unit for controlling the lighting of the light-emitting element are structured integrally with each other. A control circuit unit in a position anterior to the light-emitting element in a lamp unit is located below a shade section so that the control circuit unit can be clear of the path of light used to form a low beam light distribution pattern of the light emitted by the light-emitting element. In this setting, the light-emitting element is so located that a main optical axis Ax2 is perpendicular respect to an optical axis Ax1 of the lamp unit and that a light-emitting portion of the light-emitting element protrudes higher than the control circuit unit in the direction of the main optical axis Ax2.Type: GrantFiled: August 4, 2015Date of Patent: May 24, 2016Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Takashi Inoue, Tetsuya Suzuki, Akihiro Matsumoto, Naoki Sone, Takanori Namba, Hidetada Tanaka
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Patent number: 9267655Abstract: A vehicle lamp includes: an LED mount on which an LED is placed; an attachment that fixes the LED to the LED mount; a power supply that supplies power to the LED; a first optical member that controls light emitted from the LED; and a second optical member that controls light emitted from the first optical member. The power supply and the first optical member are provided at the attachment.Type: GrantFiled: April 30, 2012Date of Patent: February 23, 2016Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Hidetada Tanaka, Takashi Inoue, Takayuki Yagi, Ken Kato, Tsukasa Tokida, Hidemichi Sone
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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: 20160025321Abstract: In an automotive headlamp, a light-emitting module is configured such that a light-emitting element and a control circuit unit for controlling the lighting of the light-emitting element are structured integrally with each other. A control circuit unit in a position anterior to the light-emitting element in a lamp unit is located below a shade section so that the control circuit unit can be clear of the path of light used to form a low beam light distribution pattern of the light emitted by the light-emitting element. In this setting, the light-emitting element is so located that a main optical axis Ax2 is perpendicular respect to an optical axis Ax1 of the lamp unit and that a light-emitting portion of the light-emitting element protrudes higher than the control circuit unit in the direction of the main optical axis Ax2.Type: ApplicationFiled: August 4, 2015Publication date: January 28, 2016Applicant: Koito Manufacturing Co., Ltd.Inventors: Takashi INOUE, Tetsuya SUZUKI, Akihiro MATSUMOTO, Naoki SONE, Takanori NAMBA, Hidetada TANAKA
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Patent number: 9212800Abstract: A vehicular lamp includes: a movable reflector that has a reflecting surface and changes a direction of reflected light from the reflecting surface, according to an operating position thereof; a first light-emitting unit that emits light toward the reflecting surface; a second light-emitting unit that emits light toward the reflecting surface, from a position different from that of the first light-emitting unit; and a light control member that collects and projects the reflected light.Type: GrantFiled: April 14, 2014Date of Patent: December 15, 2015Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Hidetada Tanaka
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Patent number: 9134003Abstract: In an automotive headlamp, a light-emitting module is configured such that a light-emitting element and a control circuit unit for controlling the lighting of the light-emitting element are structured integrally with each other. A control circuit unit in a position anterior to the light-emitting element in a lamp unit is located below a shade section so that the control circuit unit can be clear of the path of light used to form a low beam light distribution pattern of the light emitted by the light-emitting element. In this setting, the light-emitting element is so located that a main optical axis Ax2 is perpendicular respect to an optical axis Ax1 of the lamp unit and that a light-emitting portion of the light-emitting element protrudes higher than the control circuit unit in the direction of the main optical axis Ax2.Type: GrantFiled: June 11, 2012Date of Patent: September 15, 2015Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Takashi Inoue, Tetsuya Suzuki, Akihiro Matsumoto, Naoki Sone, Takanori Namba, Hidetada Tanaka
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Publication number: 20150137680Abstract: A light emitting lamp according to one embodiment of the present invention includes a laser light source, a scanning unit, which scans the laser light emitted from the laser light source so as to form a visible light distribution pattern, an obstacle detector, which detects an obstacle, if any, in front of a driver's vehicle, and a control unit, which adjusts the intensity of the laser light irradiated to an obstacle existent region, according to the distance from the driver's vehicle to the obstacle, based on the detection result of the obstacle detector.Type: ApplicationFiled: January 26, 2015Publication date: May 21, 2015Applicant: Koito Manufacturing Co., Ltd.Inventors: Motohiro KOMATSU, Naoki Uchida, Takeshi Masuda, Yuji Yasuda, Mitsuyuki Mochizuki, Hidetada Tanaka
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Publication number: 20150103551Abstract: A direct projection type vehicular headlamp includes a projection lens having an incident surface and a light emission surface, and a semiconductor light source. A reference surface and a light control surface positioned below the reference surface are provided on the incident surface, and the light control surface is inclined forward with respect to the reference surface in a direction form an upper side to a lower side. The reference surface has a shape to emit from the light emission surface direct light from the semiconductor light source, which has passed through the reference surface and the light emission surface, as substantially parallel light, and the light control surface has a shape to project the direct light from the semiconductor light source, which has passed through the light control surface and the light emission surface, on an upper portion of a predetermined distribution pattern formed by the substantially parallel light.Type: ApplicationFiled: October 6, 2014Publication date: April 16, 2015Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Hidetada TANAKA
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Publication number: 20140313755Abstract: A vehicular lamp includes: a movable reflector that has a reflecting surface and changes a direction of reflected light from the reflecting surface, according to an operating position thereof; a first light-emitting unit that emits light toward the reflecting surface; a second light-emitting unit that emits light toward the reflecting surface, from a position different from that of the first light-emitting unit; and a light control member that collects and projects the reflected light.Type: ApplicationFiled: April 14, 2014Publication date: October 23, 2014Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Hidetada TANAKA
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Patent number: 8678629Abstract: A lamp unit for a vehicular headlamp includes: a projection lens arranged to have an optical axis extending in a vehicle longitudinal direction; a light-emitting element that is a light source arranged on a rear side with respect to a rear focal point of the projection lens; and a reflector that is formed so that a longitudinal section of the reflector has the shape of an ellipse having a first focal point at a center of light emission of the light-emitting element and a second focal point at the rear focal point of the projection lens, wherein the reflector is arranged to cover the light-emitting element and reflects irradiated light toward the projection lens, the irradiated light being light irradiated from the light-emitting element. A major axis of the ellipse, passing through the first focal point and the second focal point, is inclined with respect to the optical axis.Type: GrantFiled: August 9, 2010Date of Patent: March 25, 2014Assignee: Koito Manufacturing Co., Ltd.Inventors: Hiroyuki Ishida, Takuya Kotajima, Hidetada Tanaka
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Patent number: 8487535Abstract: An automotive headlamp apparatus comprises: a lamp unit configured to be capable of forming an additional light distribution pattern that includes an upper area above the cut-off line of a light distribution pattern for low beam and that is divided into a plurality of individual patterns; and a controller configured to control formation of each of the individual patterns in accordance with presence of a forward vehicle. The controller reduces the illuminance of an individual pattern overlapping an area where a forward vehicle is present and increases the illuminance of at least one of other individual patterns.Type: GrantFiled: July 14, 2010Date of Patent: July 16, 2013Assignee: Koito Manufacturing Co., Ltd.Inventors: Kentaro Tani, Noriko Sato, Motohiro Komatsu, Hidetada Tanaka, Hiroyuki Ishida, Naoki Uchida, Takuya Kotajima
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Publication number: 20120314436Abstract: In an automotive headlamp, a light-emitting module is configured such that a light-emitting element and a control circuit unit for controlling the lighting of the light-emitting element are structured integrally with each other. A control circuit unit in a position anterior to the light-emitting element in a lamp unit is located below a shade section so that the control circuit unit can be clear of the path of light used to form a low beam light distribution pattern of the light emitted by the light-emitting element. In this setting, the light-emitting element is so located that a main optical axis Ax2 is perpendicular respect to an optical axis Ax1 of the lamp unit and that a light-emitting portion of the light-emitting element protrudes higher than the control circuit unit in the direction of the main optical axis Ax2.Type: ApplicationFiled: June 11, 2012Publication date: December 13, 2012Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Takashi INOUE, Tetsuya SUZUKI, Akihiro MATSUMOTO, Naoki SONE, Takanori NAMBA, Hidetada TANAKA
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Publication number: 20120287658Abstract: A vehicle lamp includes: an LED mount on which an LED is placed; an attachment that fixes the LED to the LED mount; a power supply that supplies power to the LED; a first optical member that controls light emitted from the LED; and a second optical member that controls light emitted from the first optical member. The power supply and the first optical member are provided at the attachment.Type: ApplicationFiled: April 30, 2012Publication date: November 15, 2012Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Hidetada TANAKA, Takashi INOUE, Takayuki YAGI, Ken KATO, Tsukasa TOKIDA, Hidemichi SONE
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Patent number: 8297814Abstract: A vehicle headlamp includes a first light source configured to emit first light that is projected to form a first irradiation region, a second light source configured to emit second light that is projected to form a second irradiation region joined to the first irradiation region to extend in a transverse direction with respect to an optical axis, a movable shade configured to move between a position at which light irradiation to a joined region of the first irradiation region and the second irradiation region is shielded, and a position at which the light irradiation to the joined region is permitted, and a controller configured to select one of light distribution patterns that are determined by combinations of turning on and off of the first light source, turning on and off of the second light source, and the positions of the movable shade.Type: GrantFiled: December 14, 2010Date of Patent: October 30, 2012Assignee: Koito Manufacturing Co., Ltd.Inventors: Hidetada Tanaka, Satoshi Yamamura, Motohiro Komatsu
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Patent number: 8171484Abstract: A resource management apparatus includes a resource management part to manage an amount of resources used and an amount of virtual resources of each of a plurality of processing units, a selection and control part to select a processing unit having a smallest sum of the amount of resources used and the amount of virtual resources in response to an external process request, and to increase the amount of resources used by the selected processing unit and to decrease the amount of resources used by a processing unit corresponding to an external process release request in response to the process release request, a virtual resource control part to increase the amount of virtual resources of the processing unit corresponding to the process release request in response to the process release request, and a request sending part to send the external process request or process release request to the selected or corresponding processing unit.Type: GrantFiled: October 24, 2007Date of Patent: May 1, 2012Assignee: Fujitsu LimitedInventors: Katsuhiko Yamatsu, Hidetada Tanaka, Kazuaki Sumi, Nobuyuki Shima
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Publication number: 20110141753Abstract: A vehicle headlamp includes a first light source configured to emit first light that is projected to form a first irradiation region, a second light source configured to emit second light that is projected to form a second irradiation region joined to the first irradiation region to extend in a transverse direction with respect to an optical axis, a movable shade configured to move between a position at which light irradiation to a joined region of the first irradiation region and the second irradiation region is shielded, and a position at which the light irradiation to the joined region is permitted, and a controller configured to select one of light distribution patterns that are determined by combinations of turning on and off of the first light source, turning on and off of the second light source, and the positions of the movable shade.Type: ApplicationFiled: December 14, 2010Publication date: June 16, 2011Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Hidetada TANAKA, Satoshi YAMAMURA, Motohiro KOMATSU