Patents by Inventor Kazuhisa Okumura
Kazuhisa Okumura 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).
-
Patent number: 10202067Abstract: A vehicle control system includes a first control apparatus that controls a first lamp mounted in a vehicle and a second control apparatus that controls a second lamp mounted in the vehicle. The first control apparatus starts light-on/off control of the first lamp under a condition that a light-on/off command is inputted, turns on/off the first lamp such that a light quantity of the first lamp is gradually changed over a first transition time from the start of light-on/off control to when the light quantity of the first lamp reaches a target and light-on/off is completed, and inputs an auxiliary light-on/off command to the second control apparatus.Type: GrantFiled: March 6, 2015Date of Patent: February 12, 2019Assignee: DENSO CORPORATIONInventors: Kazuhisa Okumura, Koji Imaeda
-
Publication number: 20170015237Abstract: A vehicle control system includes a first control apparatus that controls a first lamp mounted in a vehicle and a second control apparatus that controls a second lamp mounted in the vehicle. The first control apparatus starts light-on/off control of the first lamp under a condition that a light-on/off command is inputted, turns on/off the first lamp such that a light quantity of the first lamp is gradually changed over a first transition time from the start of light-on/off control to when the light quantity of the first lamp reaches a target and light-on/off is completed, and inputs an auxiliary light-on/off command to the second control apparatus.Type: ApplicationFiled: March 6, 2015Publication date: January 19, 2017Applicant: DENSO CORPORATIONInventors: Kazuhisa Okumura, Koji Imaeda
-
Publication number: 20160096466Abstract: Provided is a novel control technology for a light device for a vehicle. The control device starts an alighting illumination process after a vehicle stops so as to ensure the driver's field of view when alighting the vehicle. When the alighting illumination process is started, the control device stands by until the driver alights the vehicle (S110). When the driver alights the vehicle, it is determined whether the vehicle is in the premises of the driver's home, and whether it is nighttime (S120, S130). If the determinations are both affirmative (Yes in S130), a lighting control process is started (S140). In the lighting control process, an area forward of the driver as he or she advances is illuminated with a head lamp while the range of irradiation of light by the head lamp is switched in accordance with the movement of the driver, until the driver enters the home or continuously stays out of the field of view of an external camera.Type: ApplicationFiled: May 12, 2014Publication date: April 7, 2016Inventors: Kazuhisa Okumura, Ryu Mizuno
-
Patent number: 8215809Abstract: The present invention provides, as one aspect, a light control apparatus for controlling directions of optical axes of headlights mounted in a vehicle. The apparatus includes a position detecting section that detects positions of the headlights with respect to a road surface, an optical axis direction calculating section that calculates the directions of the optical axes of the headlights, individually, so that the optical axes are directed to illumination targets positioned at predetermined distances from the positions of the headlights detected by the position detecting section, a leveling control section that controls the directions of the optical axes of the headlights in the vertical direction, individually, and a leveling output section that outputs a control command based on a calculation result of the optical axis direction calculating section to the leveling control section.Type: GrantFiled: July 20, 2009Date of Patent: July 10, 2012Assignee: Denso CorporationInventors: Kazuhisa Okumura, Ryu Mizuno
-
Publication number: 20110032717Abstract: A light control device for vehicles that controls a light axis direction of a headlight in the vehicle has an inclination acquisition means that acquires a detection result of an inclination of the vehicle, and a light axis direction changing means that changes a direction of the light axis by a response modified by a predetermined filter, so that the light axis directions of the headlights approaches an angle beforehand set to align it with the road surface according to the acquired inclination of the vehicle.Type: ApplicationFiled: August 5, 2010Publication date: February 10, 2011Applicant: DENSO CORPORATIONInventors: Tomoyuki Kamitani, Kazuhisa Okumura
-
Publication number: 20100014302Abstract: The present invention provides, as one aspect, a light control apparatus for controlling directions of optical axes of headlights mounted in a vehicle. The apparatus includes a position detecting section that detects positions of the headlights with respect to a road surface, an optical axis direction calculating section that calculates the directions of the optical axes of the headlights, individually, so that the optical axes are directed to illumination targets positioned at predetermined distances from the positions of the headlights detected by the position detecting section, a leveling control section that controls the directions of the optical axes of the headlights in the vertical direction, individually, and a leveling output section that outputs a control command based on a calculation result of the optical axis direction calculating section to the leveling control section.Type: ApplicationFiled: July 20, 2009Publication date: January 21, 2010Applicant: DENSO CORPORATIONInventors: Kazuhisa Okumura, Ryu Mizuno
-
Patent number: 7201501Abstract: A lighting device for a vehicle includes multiple light emitting devices. Each light emitting device is constructed of a light emitting diode as a light source and a light guide lens for guiding light emitted from the light emitting diode. The light emitting devices are formed in convex light emitting devices and fan-shaped light emitting devices. The convex devices and the fan-shaped devices have different light distribution characteristics. Therefore, light distribution areas and intensity of the lighting device are more flexibly adjusted than other lighting devices using light emitting diodes as light source.Type: GrantFiled: August 6, 2003Date of Patent: April 10, 2007Assignee: Denso CorporationInventors: Yuji Chigusa, Kazuhisa Okumura
-
Patent number: 7131741Abstract: In an automatic beam-axis adjustment system, a beam-axis of a headlight is gradually swivel to a position determined based on a steering angle of a steering wheel. The beam-axis returns to the initial position and a swivel control is inhibited when a vehicle is at a stop or slowly moving in an intersection, regardless of the steering angle. The swivel control is restarted after the vehicle starts running straight ahead. In other words, the swivel control is not restarted until the vehicle stats running straight ahead even when the speed of the vehicle exceeds a predetermined value. Therefore, the movement of the headlights does not disturb a driver.Type: GrantFiled: June 18, 2003Date of Patent: November 7, 2006Assignee: Denso CorporationInventors: Toshio Sugimoto, Kenichi Nishimura, Kazuhisa Okumura
-
Patent number: 7086763Abstract: The apparatus for adjusting a direction of a light axis of a vehicle headlight includes a vehicle height sensor, and an inclination calculating unit for calculating, on the basis of an output of the vehicle height sensor, inclination of the direction of the light axis of the vehicle headlight to a horizontal plane by using an approximating curve. The approximating curve is constituted by three straight line segments lying in first, second and third regions respectively. These three straight line segments which are jointed to one another have different slopes. The first region corresponds to a load condition where all seats of the vehicle are occupied and the vehicle is loaded with 30 to 50% of its maximum loading capacity, the second region corresponds to a load condition where all the seats of the vehicle are occupied and the vehicle is loaded with 90% or more of its maximum loading capacity. The third region is a region interposed between the first region and the second region.Type: GrantFiled: August 26, 2004Date of Patent: August 8, 2006Assignee: Denso CorporationInventors: Kazuhisa Okumura, Kenichi Nishimura
-
Publication number: 20050047152Abstract: The apparatus for adjusting a direction of a light axis of a vehicle headlight includes a vehicle height sensor, and an inclination calculating unit for calculating, on the basis of an output of the vehicle height sensor, inclination of the direction of the light axis of the vehicle headlight to a horizontal plane by using an approximating curve. The approximating curve is constituted by three straight line segments lying in first, second and third regions respectively. These three straight line segments which are jointed to one another have different slopes. The first region corresponds to a load condition where all seats of the vehicle are occupied and the vehicle is loaded with 30 to 50% of its maximum loading capacity, the second region corresponds to a load condition where all the seats of the vehicle are occupied and the vehicle is loaded with 90% or more of its maximum loading capacity. The third region is a region interposed between the first region and the second region.Type: ApplicationFiled: August 26, 2004Publication date: March 3, 2005Inventors: Kazuhisa Okumura, Kenichi Nishimura
-
Publication number: 20040027834Abstract: A lighting device for a vehicle includes multiple light emitting devices. Each light emitting device is constructed of a light emittinq diode as a light source and a light guide lens for guiding light emitted from the light emitting diode. The light emitting devices are formed in convex light emitting devices and fan-shaped light emitting devices. The convex devices and the fan-shaped devices have different light distribution characteristics. Therefore, light distribution areas and intensity of the lighting device are more flexibly adjusted than other lighting devices using light emitting diodes as light source.Type: ApplicationFiled: August 6, 2003Publication date: February 12, 2004Inventors: Yuji Chigusa, Kazuhisa Okumura
-
Publication number: 20040001331Abstract: In an automatic beam-axis adjustment system, a beam-axis of a headlight is gradually swivel to a position determined based on a steering angle of a steering wheel. The beam-axis returns to the initial position and a swivel control is inhibited when a vehicle is at a stop or slowly moving in an intersection, regardless of the steering angle. The swivel control is restarted after the vehicle starts running straight ahead. In other words, the swivel control is not restarted until the vehicle stats running straight ahead even when the speed of the vehicle exceeds a predetermined value. Therefore, the movement of the headlights does not disturb a driver.Type: ApplicationFiled: June 18, 2003Publication date: January 1, 2004Inventors: Toshio Sugimoto, Kenichi Nishimura, Kazuhisa Okumura