Patents by Inventor Kazutomo Fujinami
Kazutomo Fujinami 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: 10733398Abstract: A detection device includes a switch unit, the switch unit performs switching to a gain reduction state in which a gain of a loop antenna is reduced or a gain non-reduction state in which the gain of the loop antenna is not reduced in correspondence with a state of a detection target. When a wavelength of an electric wave is set as ?, the switch unit includes switch terminals for reducing the gain of the loop antenna within a range K1 on the loop antenna from a first circuit terminal to a position that is spaced away from the first circuit terminal by ?/8. In addition, the switch unit includes switch terminals for reducing the gain of the loop antenna within a range on the loop antenna from a second circuit terminal to a position that is spaced away from the second circuit terminal by ?/8.Type: GrantFiled: May 20, 2019Date of Patent: August 4, 2020Assignee: YAZAKI CORPORATIONInventors: Kouichi Yamamoto, Kazutomo Fujinami, Hiroshi Miyamoto, Ryohei Nishizaki, You Yanagida, Kunihiko Yamada
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Publication number: 20190362112Abstract: A detection device includes a switch unit, the switch unit performs switching to a gain reduction state in which a gain of a loop antenna is reduced or a gain non-reduction state in which the gain of the loop antenna is not reduced in correspondence with a state of a detection target. When a wavelength of an electric wave is set as ?, the switch unit includes switch terminals for reducing the gain of the loop antenna within a range K1 on the loop antenna from a first circuit terminal to a position that is spaced away from the first circuit terminal by ?/8. In addition, the switch unit includes switch terminals for reducing the gain of the loop antenna within a range on the loop antenna from a second circuit terminal to a position that is spaced away from the second circuit terminal by ?/8.Type: ApplicationFiled: May 20, 2019Publication date: November 28, 2019Applicant: Yazaki CorporationInventors: Kouichi YAMAMOTO, Kazutomo FUJINAMI, Hiroshi MIYAMOTO, Ryohei NISHIZAKI, You YANAGIDA, Kunihiko YAMADA
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Patent number: 6618672Abstract: A vehicle-applied rear-and-side monitory system including an image taking means for taking an image of a rear-and-side view of the subject vehicle traveling in a lane; a characteristic point extracting device for extracting at least one point as a characteristic point from an image of a following vehicle contained in a first image, taken at a first time-point, of the rear-and-side view, the following vehicle traveling at the rear of the subject vehicle in the lane of the subject vehicle or in a neighboring lane; a corresponding point detecting device for detecting a corresponding point, corresponding to the characteristic point, in a second image taken at a second time-point following the first time-point; an optical flow forming device for forming an optical flow of the characteristic point of the following vehicle from a vector connecting the characteristic point and the corresponding point; and a dead angle area located vehicles-distance calculating device for calculating at least any one of a vehicles-disType: GrantFiled: October 22, 2001Date of Patent: September 9, 2003Assignee: Yazaki CorporationInventors: Kazuyuki Sasaki, Naoto Ishikawa, Kazutomo Fujinami
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Patent number: 6549124Abstract: In an environment monitoring system for a vehicle, when a detecting means decides that an approaching vehicle cannot be detected by an image processing means, a waning means gives warning of this fact. Thus, the environment monitoring system permits one's own vehicle to run with safety even when the approaching vehicle cannot be detected.Type: GrantFiled: February 28, 2000Date of Patent: April 15, 2003Assignee: Yazaki CorporationInventors: Naoto Ishikawa, Kazutomo Fujinami, Keiki Okamoto
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Publication number: 20020087269Abstract: A vehicle-applied rear-and-side monitory system including an image taking means for taking an image of a rear-and-side view of the subject vehicle traveling in a lane; a characteristic point extracting means for extracting at least one point as a characteristic point from an image of a following vehicle contained in a first image, taken at a first time-point, of the rear-and-side view, the following vehicle traveling at the rear of the subject vehicle in the lane of the subject vehicle or in a neighboring lane; a corresponding point detecting means for detecting a corresponding point, corresponding to the characteristic point, in a second image taken at a second time-point following the first time-point; an optical flow forming means for forming an optical flow of the characteristic point of the following vehicle from a vector connecting the characteristic point and the corresponding point; and a dead angle area located vehicles-distance calculating means for calculating at least any one of a vehicles-distancType: ApplicationFiled: October 22, 2001Publication date: July 4, 2002Applicant: YAZAKI CORPORATIONInventors: Kazuyuki Sasaki, Naoto Ishikawa, Kazutomo Fujinami
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Patent number: 6360170Abstract: In a rear monitoring system for a vehicle, the information on the road on which one's own vehicle has run is acquired. On the basis of the information thus acquired, the white lines on a rear road image which distinguish one's own lane from both adjacent lanes are estimated. Using the white lines thus estimated, it is decided whether another detected vehicle is located on one's own lane or adjacent lanes.Type: GrantFiled: February 23, 2000Date of Patent: March 19, 2002Assignee: Yazaki CorporationInventors: Naoto Ishikawa, Kazutomo Fujinami, Keiki Okamoto
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Patent number: 6292111Abstract: A vehicle-applied rear-and-side monitoring system wherein a monitoring area is set inside or outside an area enclosed with lines connecting two lane marking positions, where two lane markings on both sides of a preceding vehicle running lane in the road image cross a periphery of the road image, to an infinity point in the road image, which infinity point corresponding to a detected rudder angle. Further, a vehicle-applied rear-and-side monitoring and alarming system which a alarms a drives when the following vehicle was detected as a result of monitoring a rear-and-side road view by was of the vehicle-applied rear-and-side monitoring system.Type: GrantFiled: February 28, 2000Date of Patent: September 18, 2001Assignee: Yazaki CorporationInventors: Naoto Ishikawa, Kazutomo Fujinami, Keiki Okamoto
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Publication number: 20010010540Abstract: A picked-up image of an environment of the vehicle concerned is displayed. The position of an object which approaches the vehicle concerned is acquired on the basis of two picked-up images taken at times apart by a prescribed time interval. An immobile point on the approaching object is set. A display frame image is created with reference to the immobile point. The display frame image is superposed on the picked-up image. In such a configuration, since the approaching object is encircled by a display frame image, the approaching object can be easily visually recognized.Type: ApplicationFiled: January 26, 2001Publication date: August 2, 2001Applicant: Yazaki CorporationInventors: Hiroyuki Ogura, Kazutomo Fujinami
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Patent number: 6259359Abstract: In a rear monitoring apparatus for a vehicle, a prism (2) enlarges the lower portion of the range which can be picked up by a camera (1), and a usage means uses the lower portion. In this configuration, the image in the vicinity of one's own vehicle can be picked up without impeding the detection of the optical flows generated from another vehicle approaching from a far distance, and can be used for the purpose different from the detection of the optical flows.Type: GrantFiled: April 6, 2000Date of Patent: July 10, 2001Assignee: Yazaki CorporationInventors: Kazutomo Fujinami, Naoto Ishikawa, Keiki Okamoto
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Patent number: 6218960Abstract: A rear-view monitor for use in vehicles is provided, in which contained are vehicle-mounted image pickup means for picking up images of road in the rear of one's own vehicle at every fixed time; and detection means for detecting an overtaking vehicle by processing road images obtained by the image pickup means. The monitor keeps monitoring of relative movement between one's own vehicle and the overtaking vehicle detected by the detection means. The monitor is characterized in that the image pickup means contain a wide-angle high resolution camera, and the detection means include: first image processing means for processing the whole road images obtained by the image pickup means by sampling image data; second image processing means for processing a part of road images obtained by the image pickup means without sampling image data; and selection means for selecting either the first image processing means or the second image processing means in response to a situation of traffic.Type: GrantFiled: February 29, 2000Date of Patent: April 17, 2001Assignee: Yazaki CorporationInventors: Naoto Ishikawa, Kazutomo Fujinami, Keiki Okamoto
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Patent number: 6025872Abstract: A motor vehicle peripheral monitoring apparatus uses a monitor region extension member as optical image forming means. The monitor region extension member comprises an upper image passage part and an upper image compression part. The upper image passage part includes a prism structural element of substantially a semi-conical shape whose prism apical angles become the maximum angle at the center of the member and are decreased toward the extremity from the center of the member. The upper image compression part includes a cylindrical structural element having a curved surface whose angles are set to be smaller continuously from the prism apical angles of the upper image passage part.Type: GrantFiled: September 8, 1997Date of Patent: February 15, 2000Assignee: Yazaki CorporationInventors: Toshiaki Ozaki, Takeyuki Amari, Naoto Ishikawa, Kazutomo Fujinami
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Patent number: 5729216Abstract: A monitoring apparatus for monitoring the periphery of a motor vehicle in which patterns painted on the surface of a road are eliminated to shorten a time required for calculation to determine a position of a subject by processing image data generated by two cameras, whereby image data of the object having a height is derived by subtracting image data generated one camera from image data generating by the other camera after transferring either of image data to the other image coordinate by assuming that the transferring image data have a height of zero (0) for canceling road surface images and sounding an alarm whenever it is determined that the position of the object causes an obstacle of the moving vehicle.Type: GrantFiled: April 22, 1997Date of Patent: March 17, 1998Assignee: Yazaki CorporationInventors: Kazuyuki Sasaki, Naoto Ishikawa, Kazutomo Fujinami